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racal instruments™ 1261b/bl vxi mainframe

1. 5 5 9 B9 9 B A A Tt 9 bh 9 3 s amp 9 9 e 3 BM a2 6 4 a B8 5 9 M3 9 Installation and Removal of Card Guide Covers Airflow Directors installing Blanking Panels pais s s e c x x x Exw9 REIR US Peu E ee DA cg Installing The Rack Mount Options 0 cc ee eee Installing The Slides Into The Rack 0 2 ccc eens Prepai ing The Mainfram E For Rack MOUNINO 24 cierra Installing The Mainframe Into The Rack 0 0 ccc eee ees Installing Option 54 1 and 54 2 Receiver Front Extension Installing Inter Module Shields Option 52 ccc eee eee ee Installing ASFP Panel Option 29 di ce Ea eo Fd Ge aca ws Bars eee Installing Rack Mount DOON ii ora as Installing Option 53 Current Sharing Supply Into a Rack For Use With 1261B Only Connecting Option 53 Current Sharing Supply For Use With 1261B Only Connecting Salely Ground xvn EE RE rehab awd rd ceded ese Fan Speed Hl EO Selection ao ss pass o Eres RES IY Rd ODE RN E x mace es Operating The 1261B BL Using This Chapter Front Panel Rear Panel s s 4 9 9 9 9 9 93 B8 B8 B yy 33 NM a 8 4 4 o y 4 4 4 3 e A 5 O 5 8 A 9 4 9 9 9 9 9 w Powering On The Mainframe celles Using Remote Power On Standby Switching cece eee Operating With The Current Share Option For Use With 1261B Only Basic Functional Check
2. 2 Reinsert plastic trim pieces top and bottom position rack mounting ears Items 4 and 5 to give desired recess and secure loosely with two flat head screws Item 20 each side passing through the trim piece holes 3 Insert rack mount ear shim plate Item 6 in each side rail groove and slide up behind rack mount ear Align hole in shim and ear and secure with flat head screw Item 20 both sides Tighten top and bottom screws Item 20 To comply with VXlp ug amp play receiver interconnection specification for interlocking receivers using interconnect adaptors secure the rack mount ear using the mounting holes adjacent to the identifier hole See Figure 2 5 This results in meeting the requirement of 100 58 mm 3 960 in from the front surface of the rack mount ear to the mounting surface of the VXI module front panel 4 Depending on rack style front or internal mounting rail choose appropriate rack brackets long or short Item 29 for front and rear slide attachment Attach brackets to slide assembly using bracket kit hardware Leave loose for final adjustment Install 10 32 retaining nuts Item 9 into rack bracket slots 8 places 5 Measure distance c inches between rear of rack mount ear and front of the mainframe Measure distance r inches from front of front rack mounting rail to rack slide bracket mounting surface in the rack 6 Firmly secure front slide bracket to slide at distance d from front of s
3. HE 253232822282 2953 Is Non TORS CO TROL TLL TX TA CUI Ed ES Pad eac woe lan La Cep o GATT 1 AY my YI Pa 4 at VOL IAM aD Aar ie Y Pra E a 4 ur Fa rata Om Cis T a m APT nec T D a ZN waanina en TR SR rts n aide a POSER DL xP avais lw cr onem U mM n ro marie Indicator is illuminated Observe Power Me G Li KUR sinne KT um m i Tim SAUBCORO E E Set Power Switch to On position r l uet uH Figure 3 3 Powering On The Mainframe Operating The 1261B BL 3 4 Using Remote Power On Standby Switching SSSsSSSSSSS Co EESC SC OCA ni i gt 3 C PE gt gt mil O m a O 2 4 14 or 24 Logic Ground GND a i Y 1 Connect a user supplied cable or equivalent between J415 female 25 DSUB and a remote switch or open collector driver The switch or driver should connect to J415 pin 23 INHIBIT and to one of the GND pins zu tadas 2 Complete Steps in Figure 3 3 Powering On The euer O 7 Jo Mainframe S fm 3 Place in Standby DC power to mainframe off by o le closing remote switch shorting pin J415 23 to Logic TTL low with an o
4. 150 mV 50 mV 50 mV 50 mV 50 M Voo Ripple Noise 150 mV 90 mV 50 mV 50 mV 50 mV Over voltage protection Over temperature protection Over current protection Voltage 424 V 412 V 15V 2V 5 2 V 12 V 24 V 24 V 12 V 5 V 2 V 5 2 V 12 V 24 V Tolerance AV 1 2V 720 mV 600 mV 360mV 250 mV 125 mV 100 mV 100 mV 260 mV 156 mV 600 mV 360 mV 1 2 V 720 mV No Load Full Load Voltage Value Value 7 Accuracy at full load value 5 V typical Specifications A 3 Table A 3 Cooling Characteristic Per Slot Cooling Capacity Figure A 1 shows the worst slot cooling curve of the mainframe Cooling System Forced air circulation positive pressurization Slot Airflow Direction P2 to P1 bottom of module to the top of module Mainframe Intake Bench Top Bottom rear of mainframe Mainframe Exhaust Bench Top Top of mainframe Mainframe Intake Rack Mount Model Bottom sides of mainframe consistent with industry rack mount cooling practice Mainframe Exhaust Rack Mount Model Rear of mainframe top rear of mainframe consistent with industry rack mount cooling practice Filter Access Power Supply and Module Fans Filter accessible from rear of the mainframe Specifications A 4 3 0 G 0 2 0 Maximum Fan Speed Setting 7U Chassis Low Fan Speed Setting 7U Chassis 2 3 4 5 6 7 B S I o I 5 4 5 6 2 3 4 5 6 7 8 S Ie I 2 3 4
5. B The 1261B BL is shipped with the fan speed switch configured to the Fan Speed HI LO HI setting for rack mount or High Speed Fan models and to the LO Selection setting for bench top or Low Noise Fan models If your application required more cooling or lower acoustic levels you may re configure the fan speed switch as described below and in Figure 2 12 Fan Speed HI LO selection 1 Disconnect AC power from the mainframe 2 On rackmount 9U mainframes only loosen the two captive thumbscrews on the fan cover assembly and allow it to swing open It will pivot about its base allowing access to the module fan filter and frame 3 Loosen the lower center captive thumbscrew on the module fan filter frame Lift it up and toward the rear to remove the frame and filter from the rear of the module fan assembly 4 Locate the toggle switch located on the fan plate and select desired fan speed UP HI DOWN LO 5 Align the hooks on the back of the filter frame with the slots on the fan assembly Insert the frame and push down to engage 6 Tighten the captive thumbscrews to secure the fan filter frame 7 On he rack mount mainframe only swing the module fan cover upwards and forward and secure with thumbscrews Configuring the 1261B BL 2 19 Fan Speed Toggle Switch Up H1 Down LO Filter Frame Thumb Screw Fan Cover Assembly Module Module Filter Thumb Fan Fan Frame Screws 2 Assembly Filter Figure 2 12 Fa
6. DC Voltage Regulation Specifications A 2 Voltage 24 V 12 V 5V 2V 5 2 V 12 V 24 V Tolerance AV 1 2V 720 mV 600 mV 360mV 250 mV 125 mV 100 mV 100 mV 260 mV 156 mV 600 mV 360 mV 1 2 V 720 mV Voltage 24 V 12 V 5V 2V 5 2 V 12 V 24 V Tolerance AV 1 2V 720 mV 600 mV 360mV 250 mV 125 mV 100 mV 100 mV 260 mV 156 mV 600 mV 360 mV 1 2 V 720 mV Characteristic Description 1261B Description 1261BL Voltage Maximum Load Ripple Noise Maximum Induced Ripple Noise Protections VXI Supply Rear Panel DC Voltage Monitors J415 Connector VXI Supply Rear Panel DC Current Monitors J415 Connector Voltage Ripple Noise 24 V 12 V 5 V 2 V 5 2 V 12 V 24 V 150 mV 50 mV 50 mV 50 mV 50 mV Voltage Ripple Noise 24 V 12 V 150 mV 50 mV 50 mV 50 mV 50 mV 50 mV 150 mV Over voltage protection Over temperature protection Over current protection Voltage Tolerance AV 24 V 1 2V 720 mV 12 V 600 mV 360mV 5V 250 mV 125 mV 2V 100 mV 100 mV 5 2 V 260 mV 156 mV 12 V 600 mV 360 mV 24 V 1 2 V 720 mV No Load Full Load Voltage Value Value 24 V 412 V 5 V 2 V 5 2 V 12 V 24 V 7 Accuracy at full load value 5 V typical 24 V 12 V 5 V 2 V 5 2 V 12 V 24 V Voltage 24 V 12 V 5 V 2 V 5 2 V 12 V 24 V Ripple Noise
7. Power Supply Assembly 000000000000000DD 0000000000000000D0 Thumb Screw Supply Fan Filter Figure 5 1 Cleaning The Supply Fan Filter Loosen the captive thumb screw retaining the supply fan filter 2 Remove the supply fan filter towards the rear 3 Clean the supply fan filter by washing in mild soap solution vacuuming or blowing air through the filter Rinse the filter with water and dry before replacing it in the mainframe Maintenance 5 3 Cleaning The Module The module fan filter is easily removed from the rear of the chassis as shown in Figure 5 2 Fan Filter Filter Frame Thumb Screw Fan Cover Assembly Only used on 9U Rack Mount Version Module Module Filter Thumb Fan Fan Frame Screws 2 Assembly Filter Figure 5 2 Cleaning The Module Fan Filter 1 On rackmount 9U mainframes only loosen the two captive thumbscrews on the fan cover assembly and allow it to swing open It will pivot about its base allowing access to the module fan filter and frame Maintenance 5 4 Modular Component Removal and Replacement Tools Required CAUTION 2 Loosen the lower center captive thumbscrew on the module fan filter frame Lift it up and towards the rear to remove the frame and filter from the rear of the module fan assembly 3 Clean the fan filter by washing in mild soap solution vacuuming or blowing air through the filter Rinse the filter with water and dry before replacing it in the ma
8. n D pon I amp t f pa Ogg LD unii epa O50 SS DO O pu Bap Pid gt n go 050 Z Z ret 1 ga 050 JO IH ais DO THD I H Oo Sogogodo o I z pu ais BB zr Ter Op Sua uz U E uy LU D n Wide E Dad No gt IN l ai a P A Zo L NES VIEW A A Ae Maintenance 5 15 ESSES TWO FRONT OPENINGS ONLY Maintenance 5 16 REF RACAL INST DESIG B N DESCRIPTION FSC MANUFACTURER S P N in PORTOS 1210149 DIODE LIGHT EMITTING GREEN WITH CABLE 2 1V 72619 553 0201 001 pes 602235 SWITCH ROCKER SNAP IN 21793 602235 4234 456341 FOOT REAR 21793 456341 po 3d 456379 PANEL CONNECTOR FILLER 21793 456379 os 620873 WASHER FLAT 6 SS MS NAS 20 C6L X 621327 RIVET SNAP SR BLACK 118 157 06915 SR 3055BK 338 615059 SCREW PPH 6 32 X 4375 i 9 8 1617103 WASHER FLAT LIGHT 5 gt 2079 1618112 SCREW PPH 6 20 X 500 TAPPING TYPE B eee 1921054 RECESSED BUMPER 6T698 101 3N 1026 i Peo ya 407377 POWER SUPPLY ASSY 12618 21793 45673737 rece al 407375 001 FAN ASSY 2 SPEED 1261B 121793 407375 001 1931 1456352 COVER TOP 7U CHASSIS 21793 456352 Bet el 456353 COVER BOTTOM 7U CHASSIS 21793 456353 2352 456382 CABLETRAY STANDARD W 9U CHASSIS 21793 456382 25 1 1456383 COVER REAR 9U CHASSIS 21793 456383 ata 145
9. Considerations The 1261B 9U Mainframe is designed primarily to operate in an instrument rack while the 1261B BL 7U chassis are designed to operate as bench top units If the 7U 1261B BL is installed in a rack allow 1 75 inches of clearance above the unit to permit the free flow of air through the exhaust vents in the top cover Refer to Figures 1 5 and 1 6 for vent locations for the 1261B BL bench top 7U and 1261B rack mount 9U mainframe respectively Determine how you will use your 1261B BL bench or rack mount and follow the appropriate installation instructions Configuring the 1261B BL 2 1 Installing VXI Modules Installation and Removal of Card Guide Covers Airflow Directors CAUTION Install C size modules directly into the mainframe by first placing the module s card edges into the front module guides top and bottom Slide the module to the rear of the mainframe until the module connectors mate solidly with the backplane connectors Secure the module s front panel to the mainframe using the module s front panel mounting screws The easiest way to install B size modules is with a B to C size adapter allowing a B size module to be installed just like a C size In order to improve cooling of used slots in the VXI mainframe a limited number of airflow directors P N 456271 may be installed at empty slot locations to redirect otherwise wasted airflow To maintain a balanced airflow throughout the system when
10. a a b c9 c5 3 amp P o s s d e 8 9 4 4 s AA 9 As 5 5 9 5 G G3 8 ww e e ww 3 e 6 e uuu Wu cumul a a O O Y gt O cO co 00 NADO Cn amp ON O 3 1 3 3 3 4 3 5 3 6 3 9 Understanding The 1261B BL OVA MEWE E NET dosi A O da Tin AREA e Mb de uv Ano T a e T omg eerte Power Supply Interconnection oo ooooocornoroccoro moon pPowen SupplyiIBrotections TERR TET id Pos tot ans ete Tem Backplane ri TE O pe BL rl OR R Backplane Interconnections cccc rr CoolingiGystem Tere Dar O Meters midi RAT TL A T E lol Rack Mount Cooling System o ooooooooororrommmo o Bench ToOpiGO0IMO System e T Noes e ra o tee a teenies CoolingalfeiPowern Supply7 14 358105 4 1 dao ERE Tete cidad ris Maintenance Whatsilnstihisiiehapter az qe emer eT A CENE E TH Servkeistratagv m oo Ee A Oh Sn S RE TIS INA mion e sos TL Servicalinterval roe voro una de sei oec Fontes IN CUR ME On ER E preparation TE Ra a eet Keri Dee T T e Noe Mose oem e A ipspectionianaielearnrg Ner Eden rey Iu sep ee EET e cm SiO REIS INMI tits te POPE EISE OT S TER PT E OR DN O nene Exterion Gleanngzs mie colic EET qnum nm E ron reete mST Cleaning The Power Supply Filter o lt oo ooooooooooo Cleaning The Module Fan Filter et eee eee eens Modular Component Removal and Replacement MOOIS REQUIRE O DES e SETS
11. a competitive source or used for manufacture by anyone other than Astronics Test Systems The information herein has been developed at private expense and may only be used for operation and maintenance reference purposes or for purposes of engineering evaluation and incorporation into technical specifications and other documents which specify procurement of products from Astronics Test Systems TRADEMARKS AND SERVICE MARKS All trademarks and service marks used in this document are the property of their respective owners e Racal Instruments Talon Instruments Trig Tek ActivATE Adapt A Switch N GEN and PAWS are trademarks of Astronics Test Systems in the United States DISCLAIMER Buyer acknowledges and agrees that it is responsible for the operation of the goods purchased and should ensure that they are used properly and in accordance with this document and any other instructions provided by Seller Astronics Test Systems products are not specifically designed manufactured or intended to be used as parts assemblies or components in planning construction maintenance or operation of a nuclear facility or in life Support or safety critical applications in which the failure of the Astronics Test Systems product could create a situation where personal injury or death could occur Should Buyer purchase Astronics Test Systems product for such unintended application Buyer shall indemnify and hold Astronics Test Systems its officers employees s
12. at the top of the module The 1261B Rack Mount mainframe exhausts module cooling air at the rear of the mainframe Filtered air enters at the bottom rear of the 1261B BL Bench Top mainframe through the fan assembly The incoming air is forced downward into a pressurized plenum below the VXI modules The high pressure in the plenum forces the air up through a metered plate into the VXI modules The air passing over components in the modules absorbs heat and exits at the top of the module Cooling air is exhausted through the top of the mainframe in the 1261B BL Bench Top mainframe The power supply assembly contains a speed controlled fan for its own internal cooling Filtered air enters through the one side of the mainframe and exits at the opposite side after passing through the power supply o Maintenance What s In This This chapter provides procedures for inspecting and cleaning the 1261B BL removing and replacing mainframe components and Chapter isolating problems to the module level Refer to Chapter 6 Understanding The 1261B BL for theory of operation information Service Strategy The service procedures in this manual provide removal and replacement procedures to repair the 1261B BL to the module level Module level repairs are accomplished by exchanging faulty modules with known good modules or parts No component level repair is provided in this manual Service Interval Clean the power supply filter and mainframe m
13. rear of the fan assembly Push up to seat and secure with hardware removed in Step 1 Socket Head Screws 2 Fan Cover Thumbscrews 2 A Fan Cover Only used on 9U Rack Mount Version Module Fan Assembly with Filter Fan Cover Housing Filter Frame Thumb Screw Fan Cover Assembly Phillips Head Securing Screws 4 Fan Assembly Thumb Screws 4 Figure 5 3 Module Fan Assembly Detail Power Supply Tabs OA Q Av ros sv ts2v MAT X EM Esos zorv zsov Zone RC Gg PLACEMENT O6 FUSE i O O AYOIO ELECTRICAL SHOCK POWER wur AST t Ot SCONMECTED erom COMTIMUIEO FIE PROT REPLACE Y vih 4 ruse for THE CORRE C VOLTA AMD RATINm 18 AYDID EL CTRICA SHOCK DO 1400YA MAX i J 2 LINE iZOY 230Y N BINE zx ue dO Power Supply Assembly MAVIC I TO QUALIFIES PERSONEL 333 ELECTAICAL SOCK MAIAAD DO MOT OPERATE THIS ea Teeny Ua CON ein PROPLA_ Y ODED HONITOR CONTROL J415 Fan Assembly O C SR SELLS SIS OIR a O Fan Assembly Tabs Figure 5 4 Aligning The Module Fan Assembly Maintenance 5 7 To remove and install the power supply assembly from the Removal and Replacement of The mainframe Refer to Figure 5 5 and perform the steps below Power Supply Assembly 6 Captive Thumbscrews 3 on top Power Su
14. side and two socket head cap Allen screws and lockwashers inside rear of cabletray Pull bottom of housing away and downwards disengaging retaining hooks from rear of module fan assembly This will expose the fan assembly for removal Omit this step for benchtop 7U mainframes Loosen the lower center captive thumbscrew on the fan filter frame Lift it up and towards the rear to remove the frame and filter from the rear of the module fan assembly Loosen the four captive thumbscrews which secure the module fan assembly to the mainframe Ensure that all four thumbscrews are disengaged from the mainframe Grasp the module fan assembly by the bottom right and top left floating thumbscrew Remove the module fan assembly by pulling gently toward the rear of the mainframe while gripping the assembly by the two thumbscrews To reinstall the module fan assembly first align the assembly with the rear of the mainframe Insert the fan assembly by gently pushing it forward into the mainframe making sure the electrical connector is properly mated Tighten the four thumbscrews securing the module fan assembly Place filter in the filter frame and align the hooks on the back of the filter frame with the slots on the module fan assembly Insert the frame and push down to engage Tighten the captive thumbscrew to secure the fan filter frame On rackmount mainframe only engage the hooks on rear of fan cover assembly with the slots in the
15. 1 Each Screw and Part of Item 29 or item 9 Ear 3 Per Side Side Washer Screw tem 16 Item 29 4 Places 3 Per Side Item 20 Items 36 37 Figure 2 5 Preparing The Mainframe For Rack Mounting Configuring the 1261B BL 2 6 JU El n 1 Table 2 1 Rack Mount Components ITEM DESCRIPTION QTY PART NUMBER QTY PART NUMBER 9U 9U 7U 7U EN ES EX ENE as ste erecta em EE NN 610920 1 1 1 2 14 18 O ok al Cc LO i A 32 Fiat Washer 10 4 617130 12 617130 Configuring the 1261B BL 2 7 Installing The Slides Into The Rack NOTE NOTE Configuring the 1261B BL 2 8 The assistance of a second person may be needed for the following instrument rack assembly Secure the slide mount assembly in the designated location of the instrument rack using the procedure below To insure slide bracket kits are installed correctly to the slides it is necessary to install the rack mounting ears Items 4 and 5 to the mainframe at the desired recess If the mounting rail of the instrument rack is tapped for 10 32 screws drill out two places for each bracket using a inch diameter bit Proceed with the assembly Refer to Figures 2 3 2 4 2 5 and Table 2 1 1 Take the 1261B BL mainframe and remove the button head cap screw securing plastic trim pieces at top and bottom of front side rails both sides Remove trim pieces and slide trim plate from both side rails
16. 1509 ground label below the bottom screw on the EMS SMS or blank panel This is located on the right side rear view of the 1261B Getting Started Product Description Key Features Fase of Use TABLE OF CONTENTS MODEL 1261B BL n os eee s G 34 onn p oc c o 9 a 9 c 83 annn Pb e sss sse nn a sse e c m a Ga 4 a e n a b o 9 bnn ynu C 4 9 9 983 9 s c amp a 9 5 3 93 v a a 9 4 aaa 1 Bench Top Model 7U Footprint oo ec nee VXIplug amp play Rack Mount Model 9U Footprint oo oooo Modular Mainframe Design 0 0 ccc cee ee rn Available DC Power IS High Capacity Positive Pressure Cooling system even eeee ea Bench Top CODIINGSYSIEMA derma dais Rack Mount Cooling System eee eee Hack Mount Fealures cte e Qo OR e tee ao CS C Nt a Backplane Items Shipped With The s s a 9 9 9 9 9 vw 9 9 93 o amp a 9 9 a 6 9 1 a 8A 9 4 5 b 4d A 9 8 e s 1 19D TD BE ssec dicte oem a iS educa Ia Od Ae we ae PY Spares Ordering Information 0556645684506 mi RR AERE ER ee RR Optional Equipment Configuring The 1261B BL Using This Chapter AC Mains Power Site Considerations Installing VXI Modules a 3s C c s n 34 tup 9 vo 9 4 a a a 5 4d o 4 9 4 e 73 K 9 v c o 48 3G 3 e vw 3 ae 9 9
17. 250 V Operation Inrush Current Input current Power Disconnect 70 A maximum cold start or after 1 minute cool down 15 A maximum at 90 V Gus 8 A maximum at 207 V Gus Front Panel Power On Standby Switch Rear panel connection allows for remote inhibit operation Power cord provides main power disconnect The Power On Standby switch must be in Power On position prior to use of remote inhibit Input Current Limit 15 A Power Factor Correction Over entire input voltage range 47 Hz to 63 Hz Specifications A 1 Table A 2 DC Output Power Description 1261B Description 1261BL 1100 W O C to 45 C 675W OC to 55 C 180 V 250 V derate 90 V 250 V 10W C above 45 C Maximum Power Available To Chassis 1000 W 0 C to 55 C 100 V 250 V 900 W 0 C to 55 C 90 V 100 V Power Available to Slots 925 W 100 V 250 V 600 W 90 V 250 V 0 12 825 W 90 V 100 V DC Current Capacity lue Voltage lue Steady State Voltage lues Steady State Current Current 24V 12 A 18A 12V 13A 24V 10A 5 V 80 A 120 A 12 V 10A 2V 30 A 5 V 60 A 5 2 V 60 A 2V 20A 12 V 13A 5 2 V 30 A 24 V 12A 12V 10A 5 VSTDBY OA 1Amax 24 V 10A user supplied Option 53 Current Sharing Supply is required to deliver 5 V 120 Amps or 24 V 18 Amps Dynamic Current luo Voltage Voltage 24 V 24 V 12V 12V 5V 5V 2V 2V 5 2 V 5 2 V 12 V 12 V 24 V i 24 V
18. 261B BL User Manual vi Publication No 980800 Rev A This page was left intentionally blank Astronics Test Systems 1 Getting Started Product The Model 12618 High Power Mainframe is a 13 slot VXlbus ao Mainframe suitable for the most power hungry applications The Description Model 1261BL 600 Watt mainframe is suitable for applications with modest power requirements Both fully comply with the VXlbus Specification 1 4 requirements and are VXlplug amp play compatible Key Features Figures 1 1 through 1 7 show the key features of the 1261B BL Ease of Use e Fast Setup The 1261B BL backplane uses active automatic VME interrupt acknowledge and bus grant daisy chaining Manual configuration of backplane switch settings or jumpers has been eliminated e Universal AC Input The 1261B BL AC input is both auto voltage and auto frequency ranging The chassis does not require the configuration of a voltage selection switch e Plug in Power Supply and Fans The 1261B BL modular system design results in a virtually wireless mainframe with low MTTR and high MTBF See Figure 1 3 e Variable Recess Rack Mounting The adjustable rack mount ear provides variable 0 625 inch increments recess rack mounting capability See Figure 1 7 Getting Started 1 1 Bench Top Model The 1261B BL Bench Top is a high performance VXI mainframe that 7U Footprint is only 7U 12 220 inches tall 12 220 Figure 1 1 1261B BL Bench Top 7U Tal
19. 3 Backplane The Backplane serves several functions Rigid mechanical interface which accommodates a lifetime of insertions of VXI modules and the plug in power supply e Supplies DC voltages and currents to modules e Connects the VME communications interface across P1 and P2 from slot 0 to slot 12 e Connects the VXI extensions across P2 rows a and c from slot O to slot 12 e Connects the Power Standby switch and module cooling fans with the power supply Backplane The Power On Standby switch S100 connects to the backplane Interconnections through a polarized locking wire to board header at J54 The module cooling fans connect to the backplane through a polarized locking wire to board header at J56 The power supply mates with the backplane through board to board connector J52 Understanding The 1261B BL 4 3 Cooling System Rack Mount Cooling System Bench Top Cooling System Cooling The Power Supply Understanding The 1261B BL 4 4 The Module Fan assembly located at the bottom rear of the mainframe houses three cooling fans Module cooling air enters at the bottom sides of the 1261B Rack Mount mainframe and is filtered as it is drawn through the fan assembly The incoming air is forced downward into a pressurized plenum below the VXI modules The high pressure in the plenum forces the air up through a metered plate into the VXI modules The air passing over components in the modules absorbs heat and exits
20. 5 6 Figure A 1 Mainframe Worst Case Slot Cooling Curve Table A 4 Safety Characteristic Description Safety Characteristics EC 1010 1 and CAN CSA 22 2 No 1010 1 IEC Characteristics Installation Category II Pollution Degree 2 Safety Class 1 Specifications A 5 Maximum Fan Speed Setting 9U Chassis Low Fan Speed Setting 9U Chassis Table A 5 Environmental Classification MIL T 28800E Type Ill Class 5 Style E or F Temperature Meets the limits stated in MIL T 28800E for Type Ill Class 5 Operating 0 C to 55 C Non operating 40 C to 71 C Relative Humidity Operating Up to 95 at up to 30 C and up to 45 at up to 55 C Non operating Up to 95 at up to 55 C Altitude Operating 15 000 ft Non operating 40 000 ft Random Vibration Three axis 30 minutes total 10 minutes per axis Operating 0 27 daus total from 5 Hz to 55 Hz Non operating 2 28 dous total from 5 Hz to 55 Hz Functional Shock Operating Half sine 30 g 11 ms duration Meets functional shock requirements of MIL T 28800E Type Ill Class 5 User Bench Handling Operating Each edge lifted four inches and allowed to free fall onto a solid wooden bench surface Electromagnetic Compatibility EMC Emissions shall be within the limits specified by the Emissions following requirements Enclosure EN 55011 Class B FCC Part 15 Class B limits for radiated emissions Class A if equipped with AC Mains Option 53 EN 60555 2 AC power harmonic emi
21. 6384 BRACKET REAR COVER 9U CHASSIS 21793 456384 A ate 456386 ENCLOSURE TOP EXTENSION 9U CHASSIS 21793 456386 27 9 1616256 SCREW PPH SEMS ASSY 6 32X 375 9U CH 78189 SEMS W SQ CONE WA i 28 3 1615558 SCREW PFH 100 DEG CSK 6 32 X 375 7U i 29 A R 920962 LOCTITE 242 MED STR 7U CHASSIS 05972 272 i 30 1 602262 CORD POWER 15A MEGAE 17005 14M ADS 1615718 SCREW SLOTTED EEX 6 32 x 312 9U CHASSIS 33 4 1517128 WASHER LOCK 6 LIGHT SERIES 9U CHASSIS 34 5 1456271 COVER CARD GUIDE 21793 456271 35 A R 610388 GROMMET CATERPILLAR 040 THICK 9U CH 103296 G51H A 36 A 2 921452 LOCTITE PRISM 411 CLR 9U CHASSIS 05972 PRISM411 13771 456376 003 OVERLAY FRONT PANEL 1261B KEY 21793 456376 003 39 1 207378 00i ENCLOSURE ASSY 1261B KEY 121793 407378 001 40 1 980800 INSTRUCTION MANUAL 1261B KEY 121793 980800 2117 456553 PLATE COVER REAR 1261B KEY 121793 455233 4221 616253 SCREW PPH SEMS ASSY 4 40 X 375 78189 SEMS W SQ CONE WA 46 i 610777 CABLE TIE 16956 08 432 45 1 6112323 CLIP CABLE TIE ADHESIVE BACK 06383 ABMIM A C 46 1 456583 STIFFENER CENTER CABLE TRAY 9U CH 21793 456583 n ta gts oC E a a NONE UT E A E ce a e E A AE IE a NE as a a a E ds eS OS ce dE ac ds ee ee ee ei eee a g eee FSC SUPPLIER 03296 NYLON MOULDING PR ky oa M 4059 da IMOCTITE
22. 7U See Figure A 5 WU Option 54 2 Front Extension Mount Assembly For installing 1261B Only 407421 1261B in 24 Rack 9U See Figure A 6 Option 71 230 Volt Option 1261B 1261BL 407401 Option 721 1U Cable Tray 7U 1261B 1261BL 407518 001 Option 722 2U Cable Tray 7U 1261B 1261BL 407518 002 Option 723 3U Cable Tray 7U 1261B 1261BL 407518 003 Getting Started 1 10 2 Configuring The 1261B BL Using This Chapter This section includes procedures to install and configure the 1261B BL mainframe Use this chapter to e Review installation site considerations e Install VXI modules card guide covers or optional blanking plates e Install the 1261B BL rack mount options and install the mainframe into an instrument rack e Install and connect the Current Sharing Supply Option 53 P N 407420 e Connect safety ground AC Mains Power The 1261B BL AC input is both auto voltage and auto frequency ranging and requires no voltage switch selection When the standard 1261B BL is shipped it is configured for 120 VAC operation If Option 71 P N 407401 is ordered the 1261B BL is configured for 230 VAC operation Should it be necessary to replace the AC mains fuse F400 refer to Chapter 7 Removal and Replacement of The AC Mains Fuse WARNING For your protection from electrical shock when operating at mains frequencies greater than 63Hz connect the chassis safety ground terminal to permanent earth ground See Figure 2 11 Site
23. A 7 A O T Mi are HLR ot mI a nn i LES REAU sr LUR ER UREE L UL U RL LTR KEL KLD L H Directly Below 1261B 9U Rack Mount Directly Above 1261B 9U Rack Mount Figure 2 9 Rack Mounting Considerations For The Current Sharing Supply 1 Select the position of the current sharing supply above or below the 1261B Mainframe 2 Recommended Install support rails at selected position and place the current sharing supply onto the rails 3 Secure the rack mount ears to the rack with the four Phillips Panhead 10 32 x 75 screws supplied whether or not rails are used Configuring the 1261B BL 2 15 Connecting Option 53 Current Sharing supply For Use With 1261B Only CAUTION Configuring the 1261B BL 2 16 Before completing the procedure below ensure that J400 on the 1261B mainframe and J500 on Option 53 Current Sharing Supply are disconnected from AC power Refer to Figure 2 10 Connecting The Current Sharing Supply Option 53 and the procedure below 1 Connect the 40 current share interconnection cable p n 407427 included in the Option 53 kit between J411 on the 1261B rear panel and J511 on the Current Sharing Supply rear panel Be sure to tighten jack screws securing DSUB connectors at each cable end 2 Connect the AC power cord to 1261B mainframe 3 Connect the AC power cord to Current Sharing Supply 4 Refer to C
24. AIsTRONICS TEST SYSTEMS RACAL INSTRUMENTS M 1261B BL VXI MAINFRAME Publication No 980800 Rev A Astronics Test Systems Inc 4 Goodyear Irvine CA 92618 Tel 800 722 2528 949 859 8999 Fax 949 859 7139 atsinfo astronics com atssales astronics com atshelpdesk 2astronics com _http www astronicstestsystems com Copyright 1998 by Astronics Test Systems Inc Printed in the United States of America All rights reserved This book or parts thereof may not be reproduced in any form without written permission of the publisher THANK YOU FOR PURCHASING THIS ASTRONICS TEST SYSTEMS PRODUCT For this product or any other Astronics Test Systems product that incorporates software drivers you may access our web site to verify and or download the latest driver versions The web address for driver downloads is http www astronicstestsystems com support downloads If you have any questions about software driver downloads or our privacy policy please contact us at atsinfo astronics com WARRANTY STATEMENT All Astronics Test Systems products are designed to exacting standards and manufactured in full compliance to our AS9100 Quality Management System processes This warranty does not apply to defects resulting from any modification s of any product or part without Astronics Test Systems express written consent or misuse of any product or part The warranty also does not apply to fuses software non rechargeable batteries dam
25. CORE i HARTFORD CT 5383 PANDUIT CORP TINLEY PARK CA UEILS TRICHCO PLASTIC CO ICRICAGO IL aa aia e e e i ee IRVINE CA 67698 LESASTISGSIOS MEG CORP I AAS THOR MIS CA an a A O o Dr FT i GOD t C e lat Da RAI b NM VV MNT TIS i DNS O A aw 1 hee eS Le T TNT PS ce o TRES i a hogs cat Bape BE Pend RUE Faoi ori NS A ros s My a E to ado A cmn ONS ry SHAKESR OCF DIV i o E A A a ay eC t Maintenance 5 17 ee o o e r 407374 02133 1261BL REV N ar i i a eu a o m oo o o sess e e a um REF RACAL INST DESIG P N DESCRIPTION FSC MANUFACTURER S P N gt CR101 210149 DIODE LIGHT EMITTING GREEN WITH CABLE 2 1V 72619 558 0201 001 S100 602235 SWITCH ROCKER SNAP IN 21793 002235 2 4 456341 FOOT REAR 21793 456341 iic 456379 PANEL CONNECTOR FILLER 21793 456379 5 4 610873 WASHER FLAT 6 SS MS NA5620 C6L 6 2 611327 RIVET SNAP SR BLACK 118 157 06915 SR 3055BK 714 615059 SCREW PPH 6 32 X 375 9 8 617103 WASHER FLAT LIGHT 6 10 8 1618112 SCREW PPH 6 20 X TAPPING TYPE B 11 4 921054 RECESSED BUMPER 6T698 101 BN 1026 19 1 456352 COVER TOP 7U CHASS
26. I modules High Capacity Positive Pressure Cooling System Bench Top Cooling Figure 1 5 details the bench top cooling system System Power Supply Air Intake Exhausts other side of mainframe Instrument Air Intake Pluggable Fan Assembly Figure 1 5 1261B BL Bench Top Mainframe Positive Pressure Cooling System Getting Started 1 6 Rack Mount Cooling Figure 1 6 details the 1261B Rack Mount cooling system The 1261B System Rack Mount has air intake at the bottom sides and exhausts at the top rear consistent with industry standard rack mount cooling practice Air Exhaust Air Exhaust 4 ee Power Supply LAN Air Intake Exhausts other side of mainframe Instrument Air Intake Figure 1 6 1261B Rack Mount Mainframe Positive Pressure Cooling System Getting Started 1 7 Rack Mount Features The 1261B BL is available with a wide variety of options for both rack mount 9U and bench top 7U models Quick Disconnect Slides i o 0 o 0 UI p Adjustable Rack Mount Ear Cable Tray Allows incremental Allows cable routing recessed rack mounting without interference o Door Tinted Plexiglass Q adds protection while allowing viewing of annunciators Figure 1 7 Rack Mount and Cable Tray Option Components The adjustable rack mount ear provides variable recessed rack mounting capability Getting Started 1 8 Backplane The 1261B BL has a jumperless auto configurable backplane using active automatic
27. IS 21793 456352 20 1 456353 COVER BOTTOM 7U CHASSIS 21793 456353 28 3 615558 SCREW PFH 100 DEG CSK 6 32 X 29 A R 920962 LOCTITE 242 MED STR 05972 272 30 1 602262 CORD POWER 15A MEGAE 17005 14M 34 6 456271 COVER CARD GUIDE 21793 456271 39 1 407378 001 ENCLOSURE ASSY 1261B 21793 407378 001 40 1 980800 INSTRUCTION MANUAL 1261B BL 121793 980800 41 1 456553 PLATE COVER REAR 1261B 21793 456533 42 1 616253 SCREW PPH SEMS ASSY 4 40 X 375 78189 SEMS W SQ CONE WA 44 1 610777 CABLE TIE 16956 08 432 45 1 611323 CLIP CABLE TIE ADHESIVE BACK 06383 ABM1M A C 47 1 407376 001 FAN ASSY LOW NOISE 1261BL 121793 407376 001 48 1 407377 002 POWER SUPPLY ASSY 1261BL 21793 407377 002 49 1 456376 004 OVERLAY FRONT PANEL 1261BL 21793 456376 004 Maintenance 5 18 Maintenance 5 19 Maintenance 5 20 A Specifications SPECIFICATIONS This chapter contains the complete specifications for the 1261B BL Mainframe Table A 1 AC Input Specifications Characteristic Input Voltage Range 90 Vans to 250 Vans 47 Hz to 440 Hz 120 V operation 47 Hz to 63 Hz 230 V operation 1440 W line power maximum 0 25 in x 1 25 in Slow Blow 15 A 250 V 5 mm x 20 mm Slow Blow 10 A 250 V Input Frequency Range Power Consumption Fuse Rating 90 V 250 V Operation 207 V
28. L ES HON OO MT HI J en en wn i e CE ESO dc e i e ce E ES IU A Receiver Door Mounting Surface 24 Rack Figure A 6 Side View of 1261B 9U Mainframe With Option 54 2 Installed Specifications A 10 a 19 00 Fsgg FUSE RANGE I28y 230y 47 63 Hz 28 Y 47 448 Hr 1489 YA MAX Figure A 7 Current Sharing Supply Option 53 Views For Use With 1261B Only T Q A NO POWER SWITCH POWER CORO PROVIDES MAIN POWER DISCONNECT INWARNING 70 avato ELECTRICAL SHOCK POWER INPUT MUST BE DISCONMECIEO TYPE BEFORE REPLACEMENT OF FUSE E FOR CONTINUED FIRE PROTECTION REPLACE OMLY WITH A FUSE Of THE CORRECT YOLTASE AMO RATING x TO AVOID ELECTRICAL SHOCK DO NOT OPEN INSTRUMENT REFER SERVICING TO QUALIFIED PERSOMMEL TELECTRICAL SHOCX HAZARO DO MOT OPERATE THIS INSTRUMENT UNLESS T HAS BEEN PROPERLY GROUNDED FOR PROTECTION FROM ELECTRICAL SHOCK WHEN OPERATING AT MAINS FREQUENCIES BREATER THAN B Hz CONNECT THE SAFETY GROUNO TERMINAL TO PERMANENT CARTA GROUND SD SINE q Specifications A 11
29. MT enean ES eee Sz RANGE aa de b 3 Ra E i a D Pos dai i S z i i i i i E i 4 ura AI Y TE dal Figure 2 10 Connecting The Current Sharing Supply Option 53 Configuring the 1261B BL 2 17 Connecting Safety Omit this procedure if you do not intend to operate the 1261B BL at frequencies greater than 63Hz When operating the 1261B BL at Ground mains frequencies between 47 Hz and 63 Hz use the Chassis Safety Ground connection to connect the grounds of one or more instruments to the mainframe This ensures a common ground connection between instruments NOTE For your protection from electrical shock when operating at mains frequencies greater than 63Hz connect the chassis safety ground terminal to permanent earth ground See Figure 2 11 1 Connect a 16 AWG 1 3mm or larger wire to the 8 32 Or Y ASAS ESA ju ee ae mp Se il E DCE DNC dE MC non insulated bare MONITOR J4 15 Chassis Safety Grounding Screw Figure 2 11 Connecting Safety Ground Configuring the 1261B BL 2 18 chassis safety grounding screw using a toothed grounding lug The wire insulation must be green with a yellow stripe or O 2 Attach the opposite end of the wire to permanent earth ground using toothed washers or a toothed lug
30. age from battery leakage or problems arising from normal wear such as mechanical relay life or failure to follow instructions This warranty is in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular use The remedies provided herein are buyer s sole and exclusive remedies For the specific terms of your standard warranty contact Customer Support Please have the following information available to facilitate service 1 Product serial number 2 Product model number 3 Your company and contact information You may contact Customer Support by E Mail atshelodesk astronics com Telephone 1 800 722 3262 USA Fax 1 949 859 7139 USA RETURN OF PRODUCT Authorization is required from Astronics Test Systems before you send us your product or sub assembly for service or calibration Call or contact Customer Support at 1 800 722 3262 or 1 949 859 8999 or via fax at 1 949 859 7139 We can also be reached at atshelodesk astronics com If the original packing material is unavailable ship the product or sub assembly in an ESD shielding bag and use appropriate packing materials to surround and protect the product PROPRIETARY NOTICE This document and the technical data herein disclosed are proprietary to Astronics Test Systems and shall not without express written permission of Astronics Test Systems be used in whole or in part to solicit quotations from
31. al from the cardguide at the front end 8 Pull forward to release the fixed hooks at the center and rear Installing Blanking In order to optimize module cooling performance install optional Panels blank panels P N 404836 into unused or empty slots Secure with two captive mounting screws Refer to Figure 2 2 Mounting Screws Top and Bottom Blank Panel Il Figure 2 2 Blanking Panels Configuring the 1261B BL 2 3 Installing The Rack First perform the procedure Installing The Slides Into The Rack provided below when installing Mount Options e Option 01 7U Rack Mount wSlides Only e Option 02 7U Rack Mount w Slides amp Door e Option 11 9U Rack Mount w Slides Only e Option 12 9U Rack Mount w Slides amp Door Next perform the procedure Preparing The Mainframe For Rack Mounting when installing e All Rack Mount Options Finally perform procedure Installing The Mainframe Into The Rack when installing e All rack Mount Options Heference Figures 2 3 2 4 2 5 and Table 2 1 while performing the installation of the rack mount kits Quick Disconnect Stides Adjustable Rack Mount Ear Allows incremental recessed rack mounting Cable Tray Allows cable routing without interference Door Tinted Plexiglass adds protection while allowing Shim Plate viewing of annunciators Figure 2 3 Rack Mount Options Major Components 9U Mainframe shown Configuring the 1261B BL 2 4 R
32. ckplane terminations and daisy chaining logic s Module Cooling Fans s Front Panel Annunciator Power is supplied to the backplane through board to board connector P52 eliminating any wiring and sub backplane interconnect boards This design reduces the path impedance between the supply and the VXI modules receiving power which results in improved dynamic current performance See Appendix A for specifications Understanding The 1261B BL 4 1 Fan Lo O Assembly e Q D e c C N o oo L S o P355 SO lt Os 1355 3415 3411 Power Supply 407377 1261B 407377 002 1261BL Backplane J55 J6 J4 J1 J2 J56 Power Power Annunciator Switch S100 Figure 4 1 Functional Block Diagram for 1261B BL Mainframe Understanding The 1261B BL 4 2 Power Supply Protections The seven VXlbus power supply outputs are protected for e Over voltage e Over current Over temperature The AC input of the power supply includes protections for s Input current limit 15 Amps e Over temperature See Appendix A for specification details pertaining to the above protections If any of the above protections are active the power supply is shutdown This means it has effectively turned itself off to protect the system The Power On Standby switch or the Remote Inhibit input must be cycled to turn the mainframe back on Refer to Powering On The Mainframe and Using Remote Power On Standby Switching in Chapter
33. daisy chaining for the VME Interrupt acknowledge and bus grant daisy chain signal lines This eliminates the need to manually configure the backplane Distribution of the CLK10 reference clock is full differential providing a low skew timing source Power is supplied to the backplane through a direct connection to the 1261B BL power supply eliminating wiring and sub backplane interconnect boards The result is increased reliability and improved dynamic current performance Items Shipped With The 1261B BL ay em emma D oe a Spares Ordering Information Spares Ordering Information 1261B Power Supply 407377 900 1261B Fan Assembly 407375 001 1261BL Power Supply 407377 902 Card Guide Cover Spare Card Guide Cover 1261B 1261BL 456271 Blanking Plates to fill empty module slots 1261B 1261BL 404836 Replacement Front Door 7U 1261B 1261BL 407429 407430 Getting Started 1 9 Optional Equipment Option 14 9U Rack Mount Ears Only 1261B 1261BL 407396 Option 21 1U Cable Tray 9U 1261B Only 407397 Option 22 2U Cable Tray 9U 1261B Only 407398 Option 23 Application Specific Front Panel AFSP 9U 1261B Only 407399 Option 51 Backplane w Connector Shrouds Installed 1261B 1261BL 407418 Option 52 Inter Module Mainframe Shield Kit 1261B 1261BL 407419 Option 53 Current Sharing Supply 1261B Only 407420 Option 54 1 Front Extension Mount Assembly For installing 1261B 1261BL 407431 1261B in 24 Rack
34. e insert the fuse carrier and fuse assembly into fuse housing opening for F400 on power supply 4 Insert flat blade screwdriver into fuse carrier and rotate clockwise to lock fuse assembly in place Removing and Complete the steps below while referring to Figure 5 8 to remove and replace the card guides The procedure applies to top and Replacing The Card bottom card guides Guides Pry this direction Card Guide V Groove Figure 5 8 Card Guide Removal and Replacement Maintenance 5 11 Maintenance 5 12 Insert a flat blade screwdriver into the slot in front of the retaining hook Gently pry the tab of the retaining hook to the rear and lift the card guide releasing it at the front Gently pull the card guide forward releasing it from the center and rear retaining hooks Bowing the card guide is required to clear the front rail To replace align the card guide with the mainframe front ensuring that the V groove is at the front Gently push down and to the rear to engage the hooks at the rear and middle of the card guide Bowing the card guide is required to clear the front rail Allow the front retaining hook to rest on the front rail Insert a flat blade screwdriver into the slot in front of the retaining hook Gently pry the tab of the retaining hook to the rear and press down the front of the card guide to snap into position To troubleshoot the 1261B BL VXIbus mainframe to its component module
35. e S s cett tree ETT Removal and Replacement of The Module Fan Assembly Removal and Replacement of The Power Supply Assembly Removal and Replacement of The AC Mains Fuse sse Removing and Replacing The Card Guides ooooomooooonooo Troubleshooting The 1261B BL ais sos Tree lll lll RES In Assembivibrawings Pero eer e Pene ES Y N SE TE NO Appendix A SDecIfications mere e eme ee A Y o O AN 3 4 3 5 4 1 5 1 5 2 5 3 5 4 9 9 9 6 5 7 5 8 A 1 A 2 A 3 A 4 A 5 A 7 FIGURES 1261B BL Bench Top 7U Tall Mainframe 1261B Rack Mount 9U Tall Mainframe Plug amp Play Modular Service Friendly Mainframe Design Features 1261B BL Pluggable Power Supply 022 ee ee ee 1261B BL Bench Top Mainframe Positive Pressure Cooling System 1261B Rack Mount Mainframe Positive Pressure Cooling System Rack Mount and Cable Tray Option Components AOW DIIGCIDI S aos EA Xa d RC RR We ee eee C Blanking Panels x dri oy ties pees eA cdi dero stets Rack Mount Options Major Components 9U Mainframe Shown Slide and Bracket Components 0 0022 e eee ee Preparing The Mainframe For Rack Mounting Rear End Slide Mount Rack Dimensions esse nanna rnanan Instrument Rail Removal sesuais ee St Installing Rack Mount DOOF 4 se pasa ho tor a ds Rack Mo
36. er supply forward until engagement of the blind mate connector is felt f Exert pressure by using the palm of hand to assist final engagement 8 When fully seated tighten the six thumbscrews Do not over tighten Maintenance 5 9 Removal and Complete the steps below while referring to Figure 5 7 Replacement of The AC Mains Fuse Warning To avoid electrical shock the AC mains power input must be disconnected before replacement of the fuse Loosen A F400 J400 AC Mains Input AC Mains Fuse Cid Corn EL Co Corr AY EY EN ELO E Crm Colm Cor E i t 1 I I CO re N wannina AD MO POWER vL tOu POWER CORO PROVIDES MAIN PALA OIGCONMECT o TO AYOID ELECTRICAL EMOCX Laud MUST BE eA C TED 1408 BEFOME REPACEMENT FUSE O FOR CONTINUED FIRE PROTECTION ru LIME 120Y 230Y I Tea 9 d YITH A FUSE oF AUTO RANGING I TA YOU TAGE AMO RATING 120 2350 47 03 Hs x H t0 avota CTNICAL SHOCK NOT lan A MEP ER 1400YA MAX ul wERVICIM TO QUALIFIED PERSAS 88 i gt ELECTNT POE MAT AAG DO MOT i iT HAs ACH A t Ha I 7 c 3 is 1 I i t i I I 1 I PS Nic i Figure 5 7 Removing and Replacing The AC Mains Fuse Maintenance 5 10 1 Ensure AC mains input J400 is disconnected 2 Insert flat blade screwdriver into fuse carrier slot at F400 in power supply rear panel and rotate counter clockwise to remove 3 To replace fus
37. etaining Nut Item 9 Instrument Chassis Rail BY NN Ny Intermediate Rail pa i Front Rack Bracket Retaining Nut Part of Item 29 3 Slot 998 FRONT Rack Rail Bracket Kit Mounting Hardware 988 Part of Item 29 Access Hole for Mounting Bracket Rear Rack Bracket Part of Item 29 GP Bracket Kit Y Mounting Hardware Part of Item 29 REAR Figure 2 4 Slide and Bracket Components Configuring the 1261B BL 2 5 Left Right Rack Mounting Ear Rack Mounting Ear Item 4 Item 5 Rack Mounting Ear Retainer Nut 3 Per Side Item 9 enn at PES AR IT i iudi tiU MOAT AAT AN ii AAA TP iw Handle Mounting Screws Rack Mounting Ear Retainer Nut Screws 3 Per Side N Item 18 W 2 Per Handle Item 21 Handle Item 27 FRONT VIEW REAR VIEW VXI Plug E Play position identifier hole 3 per side Rack Mounting Ear identifier ho p Screw 3 Per Side Item 20 Front Rack Bracket Part of Item 29 or Items 34 35 Shim Plate 1 Per Side Item 6 TE ez o ep R Handle Item 27 ack Rail Slide Rack Bracket Retainer Nut Screw 2 Per Bracket Item 17 I I Rack Retainer Nut Screw 2 Per Bracket E Item 17 Mounting Hardware Part of Item 29 or Items 16 31 32 33 Bracket Retainer Nut 2 Per Bracket Rack Slide Slide Remove Foot Rear Rack Bracket Mounting Mounting Screw
38. ew of 1261B 9U Mainframe With Option 54 2 Installed Current Sharing Supply Option 53 Views For Use With 1261B Only eu vv 5 9 k 5 4 5 7 5 8 5 9 5 10 5 11 A 5 A 8 A 8 A 9 A 10 A 10 A 11 5 1 A 1 A 2 A 3 A 4 A 6 A 7 TABLES 1261B BL Available DC Current 00 0 0 ccc cece ann Rack Mount Components v xb daba Door COMPONEN S 64423 udo do at RC a EU a Ve dco A eek J411 Option 53 Current Sharing Supply P N 407420 Interface Connector J415 Rear Panel Monitor Control Connector llle Power Supply Voltages at J415 e WLOUDICSNOOUNG creia is eee aes AC INDUESDECHICANONS i a cit pd Rene qr or e ER e a hades 5 DO OUIDUMPOWE avia did arrasar abia Cooling Safety Environmental 34 2 2 3 eek Ear Ebor TE IHRER RUP ege dra Rea Backplane Mechanical s h P yp o es d Rg p n os ag B3 5 c3 8B 9 a3 4 A 4 9 m A 4 9 9 9 amp ao 9 bo R 9 9 35 a 3 7 5 13 A 1 A 2 A 4 A 5 A 6 A 7 A 7 Publication No 980800 Rev A 1261B BL User Manual DOCUMENT CHANGE HISTORY Revised per EO 30291 UL Regulations require UL data removal on page A 5 A 10 07 10 Revised and replaced first 4 pages Manual now rev letter controlled Added document change history page v in front of chapter 1 Removed Chap 6 and 7 the information needed is included in the first 4 pages starting at the cover Astronics Test Systems 1
39. hapter 3 Operating With the Current Sharing Supply to apply DC power to the mainframe 1 Connect cable assembly P N 407427 WARNING from J411 on the 1261B to J511 on the ASA Current Share Supply Be sure to tighten Before beginning this procedure jack screws securing D sub connectors ensure that J400 on 1261B and at each end 3500 on Current Share Supply is disconnected from AC power 2 Connect AC power cord to 1261B Mainframe 3 Connect AC power cord to Current Share Supply 4 Refer to Section 3 Operating with the Current Share Supply to apply DC power to the mainframe sa Fem pe DA FO APOIO ELECTRIC KXK POWER eT MAT BE DISCOMNCITLO A rad FOR CONTINUED FIRE PROTECTION APACE OT YL TR FV Or DE Gomme C 1 ra Tr AMO RAT Lg 19 AYOtO Mcctetca POCI OO BOT PCM INFTMMENT AKFXR E RT TA ICa ROC Mar 40 00 MOT OPERATE TWIS Lag TIL MAR Me are paca Y O O Oe Sl 7 G FOTS COND PROTIDES M le POWCR 01 MC ORA CT O N w ARNING Pupils Lessa l COR PROTECTION Pro ELECTRICAL BOCA WHEN OPCRAT Mm AT RA ms 1299 47 440 He O aar Kev we T S AC I ATCA Taam Gime CO TM MCTY x O TLS L a PO PELI LAAT DADL i 3 2 EDO gt Co ED L gt L 7 C o CT CoC Se ee aa ea aD eS GD Gea eS CD ea Cia DO JC DCD 2 DC OSC 7 HO C3 C9 L T gt Co FUSE Sa F Dav 03 5Y 132v pa 1 4 E
40. in 0 625 inch 1 58 cm increments user selectable Standard cable tray used in 9U mainframe provides 16 12 40 9 x 62 1 6cm cable exit area from rear of mainframe See Figure A 4 for overall mainframe dimensions 1 75 in 4 45 cm 17 25 in 43 8 cm 20 12 in 51 1 cm See Figure A 4 for overall mainframe dimensions 3 50 in 8 89 cm 17 25 in 43 8 cm 20 12 in 51 1 cm See Figure A 2 for overall mainframe dimensions 1 75 in 4 45 cm 17 25 in 43 8 cm 20 12 in 51 1 cm See Figure A 2 for overall mainframe dimensions 3 50 in 8 89 cm 17 25 in 43 8 cm 20 12 in 51 1 cm See Figure A 2 for overall mainframe dimensions 5 25 in 13 33 cm 17 25 in 43 8 cm 20 12 in 51 1 cm 46 Ibs 20 7 kg with no modules installed 52 Ibs 23 7 kb with no modules installed Specifications A 7 ot we ME Am um T7 Option 7231 773 2227 7722727 E Option 722 p Option 23 TT E RE dios o AE PE en iseaih zt Figure A 2 Front View and Side View of Bench Top 7U 1261B BL Mainframe 23 68 mis ums I eg mmn I with 1U 2U amp 3U Cable Tray Options 19 00 12 22 7U Rack Mount 15 72 9U Rack Mount UT lilo CA CC AH E G j m OQ R m nA mm 23 38 min without front door 24 63 min with f
41. inframe 4 To replace install the filter into the frame B Align the hooks on the back of the filter frame with the slots on the fan assembly Insert the frame and push down to engage 6 Tighten the captive thumbscrew to secure the fan filter frame Pa On rackmount mainframe only swing the module fan cover upwards and forward and secure with thumbscrews The following procedures describe how to remove and replace module level components of the 1261B BL Mainframe Perform these procedures only as necessary as part of installation e g fuse replacement mainframe service or repair Refer to the Assembly Drawings in this chapter for an overview of the assembly and disassembly of the mainframe See Troubleshooting for assistance in fault isolation Always power off the mainframe and disconnect the power cord before cleaning or servicing the mainframe The only tool required to disassemble the 1261B BL chassis to the module level is a medium flat blade screwdriver Exception 9U fan assembly removal requires 2 phillips screwdriver and 7 64 hex key wrench Maintenance 5 5 Removal and Replacement of The Module Fan Assembly Maintenance 5 6 The plug in module fan assembly may be removed and replaced as described in the following steps Refer to Figure 5 3 and 5 4 10 11 On rackmount 9U mainframes only loosen fan cover thumbscrews lower cover and disengage from housing Remove two phillips head screws per
42. ing steps to install the rack mount door 1 Install lower halves of the two hinges part of Item 2 to the rack mount ears with flat head screws Item 4 2 Install upper halves of hinges on the door with pan head screws Item 3 3 Install door stop Item 5 on opposite rack mount ear with self tapping screws Item 6 4 Align hole in door hinges with hinge pins on rack mount ears and mate together 5 Latch door into place by turning latch knobs fully counter clockwise Close door and turn knobs clockwise until door ts secure Configuring the 1261B BL 2 13 Figure 2 8 Installing Rack Mount Door Table 2 2 Door Components 9U P N DESCRIPTION QTY Shown 7U P N 4 4 Screw PFH 10 24 x 500 EN 611238 Bar Door Stop 456416 002 Screw PFH 6 20 x 312 616482 Configuring the 1261B BL 2 14 611238 456416 001 616482 Installing Option 53 The Current Sharing Supply Option 53 P N 407420 may be supported by rails recommended or by the front panel when Current Sharing securely mounted to the rack with the mounting screws supplied Supply Into a Rack The supply weighs 12 lbs including power cord and cable Its i mounting position is limited by the 40 inch interconnect cable P N For Use With 1261B 407427 Allow 1 75 inches of clearance around any 1261B venting Only holes Refer to Figure 2 9 A dimensional outline drawing for the Current Sharing Supply Option 53 is shown in Figure
43. isfactorily shows visible damage has been stored under unfavorable conditions has sustained stress Do not operate until performance is checked by qualified personnel EC Declaration of Conformity Astronics Test Systems declare under sole responsibility that the 1261B BL VXlbus Mainframe P N 407374 XXXXX 1261B Option 53 Current Sharing Supply P N 407420 conform to the following Product Specifications Safety EN61010 1 EMC CISPR 11 1990 EN 55011 1991 Group 1 Class A IEC 801 2 1991 EN 50082 1 1992 4 kV CD 8 kV AD IEC 801 3 1984 EN 50082 1 1992 3 V m 27 500 MHz IEC 801 4 1988 EN 50082 1 1992 1 kV The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC Irvine CA October 21 1997 Manager This page was left intentionally blank Amendment 1261B Revision M Foot Replacement amp Addition of Ground Label October 21 1997 The unit you have may contain a different foot assembly than the one documented The latest version is made up of the following 2 parts for each foot a Part Number 921515 Foot Bumper 38 high x 77 dia FSC 54106 Bruce Plastics Pittsburg PA Manufacturer s Part Number 0943 0014 b Part Number 616257 Screw PPH Sems Assy 6 32x 500 FSC 78189 Manufacturers P N SEMS W SQ CONE WA 6 These 2 parts replace item 5 P N 610873 item 7 P N 615059 and item 11 P N 921054 Add item 38 P N 92
44. itch Contact customer service Maintenance 5 13 Assembly Drawings 4 NCTZS A ZN CONNECTION FROM 425295 JS2 TO S1 2 ITEM O AS EMO UR T AS FO LOWS 4 22295 J54 3 TO SS EO 4 05 035 J94 5 TO SI22 ia e FOR X Xx MODELS USE ITEM eg b ec Sis FOR 2X2XX MODELS USE ITEM e Ory 3 ZEN aeiy CE MAGRING ABEL DEM Ga Toreros PANEL APPROXIMATELY WHERE SHOWN pe UPPER RETAINER AX PRINT BAR CODE IOENTIFICATION LABEL WITH PERTINENT DATA USING BRADYCODE BAR CODE SOFTWARE AND AFFIX APPROXIMATELY WHERE SHOWN SOFTWARE PART NO 820522 A BX FOR 2x123 MODELS SET FAN SPEED TO LOW BEFORE SKIPPING FOR 2x2229 MODELS SET FAN SPEED TO HIGH BEFORE SHIPPING PAS CONNECTION FROM 4285 95 J59 TE CRI9 ITEM 43 AS FOLLOWS 4 amp 05095 J59 9 TO CRI I WHT WIRE 40509 Jaen ip TO CRIOI BLK WIRE Hr on REOS Lil f Sonona N ED En END EN ED END o ES gt E Rp TDT DOC DC DG TC DCI 7 E 2 o E a c 2 A KO ARM i e a 4 I FA99 Q MATIAS TYPE EME opot GOERMESACIZeRO NC PALA E MA STL ir e i O O YS 0 N warning Toa y rv TET may 25 A EE ff up o TD AY01D gt T ae ber tom es Ted NH xP Fw 1 Ce SINE 1291 7230 BAS ES UA aii Maintenance 5 14 P 3 N 13 A A1 gt TR uu Ha f f OD Qc ES e f 006060606 px lt OUN JE DER ZR CLU T a Uli Op 000008 500 A u CO I Un Dn E y
45. l MainFrame Getting Started 1 2 VXIplug amp play Rack The 1261B Rack Mount mainframe is designed to the VXlplug amp play Mount Model 9U tall 15 720 inches footprint Not standard with 600W power i supply and quiet fan assembl 9U Footprint E y 15 720 Figure 1 2 1261B Rack Mount 9U Tall Mainframe Plug amp Play Getting Started 1 3 M i The 1261B BL highly modular design is virtually wireless with low odular Mainframe MTTR and high MTBF Design Blind Mate Pluggable Power Supply Rear Removeable Supply Fan Filter Blind Mate Pluggable Fan Assembly Rear Removeable Module Fan Filter Figure 1 3 Modular Service Friendly Mainframe Design Features Getting Started 1 4 Available DC Power Figure 1 4 depicts the 1261B BL high power plug in power supply Table 1 1 lists the available DC current for each VXI voltage for the 1261B and 1261BL High Power Piuggable Power Supply Assembly 067040 se RRRS ORRI LRK es gt Figure 1 4 1261B BL High Power Pluggable Power Supply VXI Voltage 1261B Available 1261BL Available DC Current DC Current 80 120 Amps See Note 60 Amps 30 Amps 13 Amps 13 Amps 12 18 Amps See Note 12 Amps Note Option 53 Current Sharing Supply required for 5V gt 80 Amps and 24V gt 12 Amps Table 1 1 1261B BL Available DC Current Getting Started 1 5 The 1261B BL uses forced air positive pressure cooling to direct air to the VX
46. level use Table 5 1 and Understanding the 1261B BL in Chapter 6 Troubleshooting The 1261B BL Table 5 1 Troubleshooting PROBLEM POSSIBLE CAUSES WHAT TO DO Power annunciator does not come on 1261B BL mainframe not connected to power source Power On Standby switch not switched on Remote inhibit input on rear panel of power supply is active Blown AC Mains Fuse Power supply protections are active causing the supply to be shutdown Power supply not fully seated Faulty wiring to front panel Power On Standby Switch Make sure that the 1261B BL is connected to a live electrical outlet Try operating another piece of equipment from this outlet Set the front Power On Standby switch to the ON position See Powering On The Mainframe in Chapter 3 Remove the inhibit by opening the remote switch or deasserting the remote open collector driver See Using Remote Power On Standby Switching in Chapter 3 Unplug AC mains power and check the fuse See Removing and Replacing the AC Mains Fuse in Chapter 5 Refer to Power Supply Protections in Chapter 4 Cycle power to clear fault if fault persists remove installed VX modules cycle power until fault is cleared Verify that the power supply assembly is fully seated and all six thumbscrews are fastened See Removing and Replacing the Power Supply in Chapter 5 Verify integrity of wiring to Power On Standby sw
47. lide where d c 176 r Note d may be a negative number in which case bracket is mounted behind leading edge of slide 7 Hold the front end of the slide mount assembly behind the front mounting rail of the rack while the second person holds the rear end of the assembly 8 Lightly secure the front slide bracket to the front mounting rail using two Phillips Panhead 10 32 x Y screw ltem 17 Place the front slide bracket firmly against the mounting rail before seating these screws 9 Adjust the length of the rear slide bracket so it touches the inside of the rear mounting rail Tighten the rear bracket to slide assembly screws 10 Lightly secure the rear slide bracket to the rear mounting rail using two Phillips Panhead 10 32 x Y screws Item 17 Place the rear slide bracket firmly against the mounting rail before seating these screws 11 Install the other slide mounting assembly in the same manner 12 Set the front dimension between the two slide mount assemblies at 16 13 16 inches 1 16 0 and firmly secure the front brackets to the mounting rail 13 The distance between the two slide mount assemblies at the rear bracket should also be set at 16 13 16 inches 1 16 0 Should a filler plate be required to secure the slide mount assembly to the rear rack mounting rail at 16 13 16 inches 1 16 0 use the dimensions given in Figure 2 6 to determine filler plate size The rear rack bracket may require adjust
48. ment to accommodate the thickness of filler plate 14 Firmly secure the rear rack bracket to the rear rack mounting rail or filler plate using two Phillips Panhead 10 32 x Ye screws in each bracket Item 17 The slides are now positioned to accept the mainframe Configuring the 1261B BL 2 9 Rear View of Rack Filler Plate Not Supplied Slotted Flange of Rear Rack Bracket 1 4 Holes 1 16 0 Between Slides 18 5 16 Rear Mounting Rail of Rack Figure 2 6 Rear End Slide Mount Rack Dimensions NS Intermediate Rail NON O Instrument Chassis Rail Locking Button Depress and Slide Instrument Chassis Rail over Button when removing Figure 2 7 Instrument Rail Removal Configuring the 1261B BL 2 10 Prepa ring The Complete the steps below while referring to Figures 2 3 2 4 2 5 and i Table 2 1 Mainframe For Rack Mounting 1 Secure rack mount ears Items 4 and 5 to the mainframe Omit steps 4 and 5 for See Installing The Slides Into The Rack Items 1 2 and 3 options without slides 2 Install handles Item 27 onto rack mount ears Items 4 5 with screws Item 21 3 Remove bottom feet screws and washer four places 4 Remove plastic rivets 3 per side at slide mount screw hole locations Item 16 5 Remove the instrument mainframe rail from slide assemblies installed in rack This is easily done by first extending the instrument rail ou
49. n Speed HI LO Selection Configuring the 1261B BL 2 20 3 Operating The 1261B BL Using This Chapter Use this Chapter to e Review front and rear panel controls and indicators e Power the mainframe on off using the front panel switch e Power the mainframe on off using the remote inhibit rear panel input e Power the mainframe on off when the Current Sharing Supply Option 53 is connected to the 1261B e Perform basic functional check of the mainframe VXI voltages e Review Rear Panel Switch and Connector Reference for pinouts and descriptions of all rear panel connectors Operating The 1261B BL 3 1 Front Panel Power On Racal instruments o POR 065085 Power On Stand by Switch Ser HERS SRE REE H SREB Sue DE 53 _ A _ _ _ _ gt eee 0 _ _ a eC 25 a a l a o M OO ER ee rna Figure 3 1 1261B BL Front View Operating The 1261B BL 3 2 Rear Panel Concealed Handles J500 AC Input J415 Monitor Control Power Supply Connector F400 AC Fuse rn p AE ay A ee qm PLE aa US aq da c
50. na de in A a eee qu Ri a weer i If o TD he 5 DE JE ES cay ED i i SNC oe CCD SC SS or ee CE n i I a QOL RR RH CC TT HO DEDO fel a No AN o oos Power ntc 1 C 1 Oi I 1 S A EaR Fan Filter O raso RANG O AN BS tos sv rszv 174 x O 3411 Used with hais EE i l rapa a e rsat Current Share Option PROVES MAIN POWER Ol ECO O S N E I TO AvOIQ CLECTNICAL BROCK det s a 5550 shown with Blanking I I po 18d ms BE tacoma crio a i E l Plate installed FOR CONTINUED PIRE PROTETT da mu LINE 120w Z30Y i i Tu Comme vim Taed AMD A 0172307 17 83 He IJOY 47 44 U 1 I TQ Av9 2 CYmIC Poa DO 1490Y at i 333 O ro L pest ST SEINE EMO CK MAIAND 00 NOT I k IT as oun ent ees OES 4 1 x i i MONITCR E CONTROL 4415 I I L I Module 1 1 Fan Filter Safety Chassis Grounding Screw e _ a Ce a Module Cooling Fan Assembly Figure 3 2 1261B BL Rear View Operating The 1261B BL 3 3 Ensure AC Power is Connected Powering On The Mainframe O PLE Ome O pos 0 Qu E 22 gt gt sc 00d as qo dA nem me ma C Luo De recs let E O E PI MTS cm EY r quac ic lus Ald ee L S L MJ E sa ig R E AAA Il O o Pa ge des gt Fi DAM XIVYYT 23 LT A re tetas A ET
51. ng Supply P N 407420 dix GND 24V Return Logic Ground 2 24 CUR SHARE 24V current sharing analog control 1 output to the Option 53 Current Sharing Supply P N 407420 Al 24V 24V power input from the Option 53 Current Sharing Supply P N 407420 5 SHARE ENABLE Output signal used to enable the Option 53 Current Sharing Supply P N 407420 This signal sinks a mininum of 10 mA at 0 4 VDC SHARE ENABLE is asserted driven low whenever DC power Is applied to the mainframe see Powering On The Mainframe and Using Remote Power On Standby Switching earlier in this chapter Operating The 1261B BL 3 7 Table 3 2 J415 Rear Panel Monitor Control Connector Description 24 VMON VXIbus Voltage Monitor Output G Logic Ground ND 3 2 VMON VXlbus Voltage Monitor Output GND Logic Ground 24 IMON Power Suppiy Current Monitor Output AZIMON 0 Power Supply Current Monitor Output Z sman 0 Power Supply Current Monitor Output VXIbus Voltage Monitor Output VXIbus 5V Standby Input VXIbus Voltage Monitor Output ACFAIL VXlbus ACFAIL Input or Monitor Output see note V Reserved D RS GN Logic Ground 12 VMON VXIbus Voltage Monitor Output 24 VMON VXlbus Voltage Monitor Output 12 VMON VXlbus Voltage Monitor Output P 18 12 iMON Power Suppiy Current Monitor Output e amo e U U 5 2 IMON Power Supply Current Monitor Output a a z Note Refer to VXIbus and VMEbus specifications for details
52. odule fan filter at a maximum interval of six months Depending upon the amount of usage and ambient dust levels in the operating environment the filters may require more frequent cleaning Clean dust from the mainframe exterior and interior as needed based on the operating environment Periodic cleaning reduces instrument breakdown and increases reliability The information in this section is designed for use by qualified service Preparation personnel Read the For Your Safety at the front of this manual and Service Strategy before attempting any procedures in this chapter Refer to Chapter 3 Operating The 1261B BL for information on the location of controls indicators and connectors used with the mainframe Many components within the mainframe are susceptible to static discharge damage Service the mainframe only in a static free CAUTION environment Observe standard handling precautions for static sensitive devices while servicing the mainframe Always wear a grounded wrist strap or equivalent while servicing the mainframe Maintenance 5 1 Inspection and Cleaning Interior Cleaning CAUTION Exterior Cleaning Maintenance 5 2 CAUTION The mainframe is inspected mechanically and electrically before shipment It should be free of marks or scratches and should meet or exceed all electrical specifications To confirm this inspect the mainframe for physical damage incurred during transit Retain the mainf
53. on using the ACFAIL and SYSRESET signals If you use these signals do not violate VXibus or VMEbus electrical specification 12 13 14 7 1 13 12 11 10 9 8 7 6 5 4 3 2 O O OG O uo O o OO Que QD Qo O Q9 O 00 25 24 23 22 21 20 19 18 17 16 15 14 Operating The 1261B BL 3 8 Basic Fu nctional The functional check consists of checking the 1261B power supply voltages to the VXlbus limits at rear panel connector J415 using a Check digital voltmeter Referring to Table 3 3 connect one lead of the voltmeter to a supply pin at J415 Connect the reference lead of the voltmeter to one of the ground pins Compare each voltage reading to the values listed in Tables 3 3 Table 3 3 Power Supply Voltages at J415 Camm a EE J415 Pin Supply Voitage Range aw aereos 2414or24 Loge Ground If the voltages are within the specified ranges the mainframe complies with VXI voltage limit specifications Operating The 1261B BL 3 9 4 Understanding The 1261B BL Overview Power Supply Power Supply Interconnection Overview The 1261B BL Mainframe consists of the following major functional blocks e Power Supply e Backplane e Cooling System Figure 4 1 shows the functional block diagram of the 1261B BL Mainframe The power supply accepts power from the AC mains and converts it to DC to power the following e VXI modules installed into the backplane Ba
54. pen collector driver which can sink 10mA of current 4 Opening the remote switch or deasserting the open collector driver re applies DC power to the mainframe Power On provided the front power switch is in the on position Ground INHIBIT to GND or by driving J415 23 to a Figure 3 4 Using Remote Power On Standby Switching Operating The 1261B BL 3 5 Operating With The 1 Mainframe must be configured for Current Share Current Share Option operation as described in Section 2 For Use With 1261B 2 Complete steps in Figure 3 3 Powering On The Mainframe Only 3 Observe 5V status and 24V status indicators are green The system is now ready for operation Status Indicators a Racal Instruments O POWER ON 12618 Current Sharing Supply mo o Front View O 5 97 co UA O uc Figure 3 5 Operating With The Current Share Option Operating The 1261B BL 3 6 3411 w tt un Oo O O O B Table 3 1 J411 Option 53 Current Sharing Supply P N 407420 Interface Connector Description A 5V 5V power input from the Option 53 Current Sharing Supply P N 407420 A GND 5V Return Logic Ground 5 CUR SHARE 5V current sharing analog contro output to the Option 53 Current Shari
55. pply Assembly AN wink N GRT 103 5 182y 174 X a o es a DOY 132Y Power Supply ay HIE Batt erizo EN Handle 2 Push to dl is Miss J400 Rotate Handle ES TA AC Input from Recess Uu e Ta 6 Captive Thumbscrews 3 on bottom Figure 5 5 Power Supply Rear View 1 Unplug the AC power cord from the rear panel of the 1261B BL 2 Loosen the six captive thumbscrews which secure the power supply to the mainframe See Figure 5 5 for locations of these six thumbscrews Ensure that the threads of the six thumbscrews are disengaged from the captive pem nut on the mainframe 3 Push the base of the recessed handles to rotate and expose the mainframe handles Maintenance 5 8 Upper Power Supply Mounting Flange High Power l Pluggable Power Supply Assembly Lower A Power Supply e Mounting Flange Figure 5 6 Removing The Power Supply 4 Firmly grasp each handle and pull evenly using a slight side to side rocking motion If the power supply is difficult to remove recheck to make sure all the thumbscrews are disengaged 5 To reinstall a power supply into the mainframe first align the power supply with the cavity at the rear of the mainframe Note that the silkscreen on the supply rear panel will read correctly when the supply is in the proper orientation Use the alignment of the threads on the upper fasteners as a visual guide 6 Gently guide the pow
56. racket to rack rail mounting screw should be loosened and re adjusted to relieve binding 2 The following assembly is required to lock the instrument into its operating position in the rack each side a If rack rail is not tapped slip three self anchoring 10 32 retaining nuts Item 9 onto the mounting rail of the rack each side These nuts should be aligned with the slots in the rack mounting ears previously attached to the mainframe Items 4 and 5 b Slide the instrument fully into the rack until the rack mounting ears strike the slide screws or front rail Secure the instrument in place using six Phillips Panhead 10 32 x 3 4 screws Item 13 Rack mount Installation is now complete Instructions for installing Option 54 1 and 54 2 Receiver Front Extension Mount Assembly P N 407421 and 407431 onto the 1261B BL are included in the kit that is shipped with the option See Figures A 5 and A 6 for side view and dimensions Instructions for installing Option 52 Inter module Shields P N 407419 onto the 1261B BL are included in the kit that is shipped with the option Instructions for installing Option 23 ASFP Panel P N 407399 onto the 1261B are included in the kit that is shipped with the option The door is part of Options 02 03 12 and 13 The door will not function if the rack mount ear is installed at the first or second row of holes behind the flange Refer to Figure 2 8 and Table 2 2 and perform the follow
57. rame packaging if reshipment is necessary Cleaning procedures consist of exterior and interior cleaning of the mainframe and cleaning fan filters Refer to your module user documentation for information on cleaning the individual VXlbus modules Always power off the mainframe and disconnect the power cord before cleaning or servicing the mainframe Use a dry low velocity stream of air to clean the interior of the mainframe Use a soft bristle brush for cleaning around components lf you must use a liquid for minor interior cleaning use a 75 isopropyl alcohol solution and rinse with deionized water Clean the exterior surfaces of the mainframe with a dry lint free cloth or a soft bristle brush If any dirt remains wipe with a cloth moistened in a mild soap solution Remove any soap residue by wiping with a cloth moistened with clear water Do not use abrasive compounds on any part of the mainframe Avoid getting moisture inside the mainframe during exterior cleaning use just enough moisture to dampen the cloth Do not wash the front or rear panel connectors or switches Cover these components while cleaning the mainframe Do not use chemical cleaning agents they may damage the mainframe Avoid chemicals that contain benzene toluene xylene acetone or similar solvents Cleaning The Power Supply Filter The supply filter is easily removed from the rear of the mainframe as shown in Figure 5 1 High Power Pluggable
58. ront door 00000000000000000 009000000000000000 999000000900 2099090099 00090000000000 00009000000000 e E 0909999000 Figure A 3 Front View and Side View of 1261B BL Bench Top Model With 7U and 9U Rack Mount Ears Specifications A 8 A 26 43 Plug E Play Spec r Ea KNEE Be o E ODDOQOOCOKCIOOOOUOQUQUG DOOODOUOOUQOQUGOQOCGOOUQ Figure A 4 Front View and Side View of 1261B BL Rack Mount Model With Rack Mount and Cable Tray Options Specifications A 9 o o T 20 50 Receiver Door Mounting Surface Front Rack Mounting Rail 12 22 15 72 O tl i li II e o il i U il i d PH P C s II c ox i c E c 3 ll x U 2 PM 2 wi Ho XW 8 PW PN T A A PUN 6 m en 24 Rack Figure A 5 Side View of 1261B BL 7U Mainframe With Option 54 1 Installed o o L w 20 50 Front Rack Mounting Rail m tr o c 3 o U o 6 L d o 15 72 y A a a DOZ BZD SG SOR G 0595952508080 ag9959gUg8g9g9 0 050 DADH50A040 O505 0 0 0R 0 0 DHMDADADAtIAONOAO 05058 05060604 A CORE
59. ssions EN 55011 Class B FCC Part 15 Class B limits for conducted emissions Immunity Enclosure Radio Frequency No mainframe failures when the mainframe is Electromagnetic Field subjected to a 3 V m electromagnetic field over the frequency range of 27 MHZ to 500 MHZ Immunity Enclosure Electrostatic Discharge Up to 8 kV with no change to control settings or ESD impairment of normal operation Immunity Fast Transients Common Mode Port Peak Voltage Tr Th Rep Frequency Signal amp Control 0 5kV 5 50 ns 5 kHz DC Power 0 5kV 5 50 ns 5 kHz AC Power 1 0kV 5 50 ns 5 kHz NR 00007 53907 Specifications A 6 Table A 6 Backplane Characteristic Bus Grant Interrupt Acknowledge Solid state auto configuring jumper less VXIbus CLK10 Distribution Full differential Table A 7 Mechanical Characteristic Overall Dimensions 7U Standard Mainframe Height Width Depth 9U Mainframe with Rack Mount Height Width Depth 1U Cable Tray Option 21 9U mainframe Height Width Depth 2U Cable Tray Option 22 9U mainframe Height Width Depth 1U Cable Tray Option 721 7U Height Width Depth 2U Cable Tray Option 722 7U Height Width Depth 3U Cable Tray Option 723 7U Height Width Depth Weight Bench Top Rack Mount 7U mainframe 9U mainframe Description 12 22 in 31 0 cm 17 38 in 44 1 cm 23 68 in 60 1 cm 15 72 in 39 9 cm 19 00 in 48 3 cm 23 68 in 60 1 cm to 28 38 in 72 1 cm
60. t until it locks in the open position as shown in Figure 2 7 Depress the locking button and hold it in to unlock the rail Slide the rail over the button and completely out of the slide mount assembly Mount the instrument chassis rails to the mainframe left and right hand side panels using screws Item 16 Installing The Assistance of a second person or a mechanical lift will be needed to align and engage the mainframe with the slide assemblies in the rack Mainframe Into The Hack Omit step 1 for options without slides If slides are not used to mount the mainframe in the rack right NOTE angle runners or a base plate MUST be used to support the mainframe CAUTION po NOT attempt to support the mainframe in the rack with the rack mount ear only Configuring the 1261B BL 2 11 Installing Option 54 1 and 54 2 Receiver Front Extension Installing Inter Module Shields Option 52 Installing ASFP Panel Option 23 Installing Rack Mount Door NOTE Configuring the 1261B BL 2 12 1 Install the mainframe with its two attached instrument rails onto the quick disconnect slide mount assemblies installed in the instrument rack Be sure the mainframe is properly aligned and square with the slide assemblies Remember to depress the locking buttons when inserting the instrument rails into the slide mount assemblies When properly installed the instrument should slide freely on the slide rails If binding occurs slide b
61. ubsidiaries affiliates and distributors harmless against all claims arising out of a claim for personal injury or death associated with such unintended use FOR YOUR SAFETY Before undertaking any troubleshooting maintenance or exploratory procedure read carefully the WARNINGS and CAUTION notices RISK OF ELECTRICAL SHOCK human life and safety and is Capable of inflicting DO NOT OPEN personal injury A CAUTION This equipment contains voltage hazardous to If this instrument is to be powered from the AC line mains through an autotransformer ensure the common connector is connected to the neutral earth pole of the power supply Before operating the unit ensure the conductor green wire is connected to the ground earth conductor of the power outlet Do not use a two conductor extension cord or a three prong two prong adapter This will defeat the protective feature of the third conductor in the power cord Q Maintenance and calibration procedures sometimes call for operation of the unit with CAUTION power applied and protective covers removed Read the procedures and heed warnings osorno avoid live circuit points Before operating this instrument 1 Ensure the proper fuse is in place for the power source to operate 2 Ensure all other devices connected to or in proximity to this instrument are properly grounded or connected to the protective third wire earth ground If the instrument fails to operate sat
62. unting Considerations For The Current Sharing Supply Connecting The Current Sharing Supply Option 53 Connecting Safety Ground R a N a as i R snsc Fan Speed HI LO Selection ese s e erite rrain esineen 126 1B BL Front VIEW aa tia co e tae EG aoa eee 126 1B BL Rear VIEW sais r Powering On The Mainframe oooconoorocnnon Using Remote Power On Standby Switching Operating With The Current Share Option Functional Block Diagram For 1261B BL Mainframe Cleaning The Supply Fan Filer iuris ias rc ke mot Cleaning The Module Fan Filter 0 eee eee ee Module Fan Assembly Detail ee ei eeee Aligning The Module Fan Assembly 0 0 20 e cece ee eee Power Supply Rear VIEW start tes ido din eee ts du dd Removing The Power Supply e e e eee eee eee Removing and Replacing The AC Mains Fuse Card Guide Removal and Replacement les Mainframe Worst Case Slot Cooling Curve sarearena Front View and Side View of Bench Top 7U 1261B BL Mainframe with 1U 2U amp 3U Cable tray Options Front View and Side View of 1261B BL Bench Top Model With 7U and 9U Rack Mount Ears 00 0 IRR Front View and Side View of 1261B Rack Mount Model With Rack Mount and Cable Tray Options omo Side View of 1261B BL 7U Mainframe With Option 54 1 Installed Side Vi
63. using airflow directors do not cover more than six empty slots at any time If module density is low space airflow directors evenly across the mainframe a 4 UG e AAS Mainframe Rear Configuring the 1261B BL 2 2 Mainframe Front Figure 2 1 Airflow Directors 1 Facing the front of the VXI mainframe with one hand hold the airflow director by the front end where the Racal logo appears 2 Select the slot to be covered by the director and place the hook at the rear of the director into the rectangular hole at the rear of the cardguide 1 Slight downward pressure on top of the director with the other hand at the rear may be required to engage the hook into the cardguide 3 Slightly flex the director upwards at the front maintaining pressure at the rear and lower the center hook of the director into the center rectangular hole in the cardguide 2 4 Press down and back to allow both center and rear hook to engage fully into the cardguide 5 Lower the front of the director and allow the snap in hook to rest on the cardguide 3 6 With a slotted screwdriver or similar flat bladed tool depress the spring hook 4 at a slight downward angle applying light pressure to the logo area This will cause the snap hook to firmly seat the director into place 7 To remove the airflow director depress the snap in hook 4 from the front with a flat bladed tool This will unlatch the hook and allow remov

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racal instruments™ 1261b/bl vxi mainframe