Telex SS-1002 User's Manual
Contents
1. LINEN Loop THRU Inside View of Front Panel Figure 2 SS 2002RM features 5 Installation Unpacking Each SS 1002 SS 2002 SS 2002RM is supplied with the following items Contact the shipper or your Audiocom dealer immediately if anything is damaged or missing Be sure to fill out and return the product registration card to Telex to properly register your intercom station For SS 1002 SS 2002 units Quantity Description 1 SS1002 or SS2002 Intercom Station 1 Warranty and registration card 1 User Instructions For SS 2002RM units Quantity Description 1 SS2002RM Intercom Station User Instructions Rubber feet apply to bottom of SS2002RM for desktop use Configuration Pre check Before making connections read the configuration notes that follow and make sure that all internal controls are properly set for your intended usage If you need to access the internal controls remove the four screws on the front that secure the intercom station faceplate to the mounting box then lift out the faceplate for all versions except the RM version To access the internal controls for the RM version remove the 10 screws securing the cover on the box and then lift the cover DIP Switches Table 1 lists the DIP switch descriptions and factory default settings Switch Description Settings Default Number p Open 0ff Closed On Setting TE C2. Switch 1 TOP VIEW OF FACEPLATE wi NI m DIP SWITCH POSITIONS U CLOSED ON 0000000 OPEN OFF Figure 3 DIP Switch Location RM Version Figure 4 DIP Switch Location S U and P Versions Headset Connector Notes If you are using a monaural dynamic mic headset or a monaural telephone style dynamic mic handset or a handheld dynamic microphone plug it into the Headset connector You can also use this connector with monaural headphones for listening when you are using either the built in panel microphone or the optional gooseneck microphone for talk back Panel Mic Connector Notes As an alternative to a headset or telephone style handset you can use either the built in panel microphone or an optional gooseneck microphone To connect a Telex MCP 90 gooseneck microphone insert the 1 4 TRS connector into the panel microphone connector and screw the microphone in When a gooseneck microphone is inserted in the panel microphone connector the built in panel microphone is automatically bypassed Use either of these microphones for talk back then use the internal speaker for listening or connect a pair of headphones to the headset connector for private listening Intercom Channel Connections the method of connection depends on the type of box The S box P box and RM versions connect to the intercom system using prefabricated cables in a phantom powered configuration The U box version is de
3. Unbalanced switch in the Unbalanced position Incoming Call Beep Incoming calls are always indicated by a red flashing call key If you also want incoming call beep in headphones set DIP switch 3 to the Open position default DIP switch 3 must also be in the Open position if you want to activate incoming call beep to the speaker using DIP switch 5 Microphone Type If you will be using a headset telephone style handset or dynamic handheld microphone and the specifications indicate the microphone type is balanced leave DIP switch 4 in the Open default position If the specifications indicate an unbalanced microphone set this switch to the Closed position If you are not sure leave the switch in the Open position for now then try both positions during the operation Use the position that produces the best audio quality at other stations Speaker Beep for Incoming Call Set DIP switch 5 to the Closed position if you want to hear incoming call beep in the speaker Note that DIP switch 3 must be in the Open position Balanced Unbalanced Switch This switch is set at the factory to the Balanced or BAL position for use with Audiocom intercom channels Set the switch to the Unbalanced or UNBAL position for use with a Clear Com intercom system Sidetone Trimmers These are normally adjusted after all connections are completed See Sidetone Adjustment 39 Open Off Closed On W
4. 3 15 A 80 mm asd U Box 10 25 le 546 _ y lt S d gt 138 7 mm 3 25 82 6 mm RM TRADEMARKS Audiocom is a registered trademark of Telex Communications Names of other products mentioned herein are used for identification purposes only and may be trademarks and or registered trademarks of their respective companies WARRANTY INFORMATION Products are warranted by Telex Communications Inc to be free from defects in materials and workmanship for a period of one year from the date of sale The sole obligation of Telex during the warranty period is to provide without charge parts and labor necessary to remedy covered defects appearing in products returned prepaid to Telex This warranty does not cover any defect malfunction or failure caused beyond the control of Telex including unreasonable or negligent operation abuse accident failure to follow instructions in the manual defective or improper associated equipment attempts at modification and repair not authorized by Telex and shipping damage Products with their serial numbers removed or effaced are not covered by this warranty To obtain warranty service follow the procedures entitled Procedure for Returns and Shipping to Manufacturer for Repair or Adjustment This warranty is the sole and exclusive express warranty given with respect to Audiocom products It is the responsibility of the user to determine before purch
5. A lt gt 3 Pair3 A gt 1 Both wires Shield lt q gt Merienn tances Shield Cable Type 22AWG Stranded 3 Pair Twisted wire with Shield Connector Type 6 Pin XLR Audio Neutrik only not compatible with 6 pin Switchcraft Pin 1 Channel 1 amp 2 Common Pin 2 No connection Pin 3 Channel 1 Audio Power L Denotes twisted pair Pin 4 Channel 1 Audio Power A Pin 5 Channel 2 Audio Power i Denotes shield Pin 6 Channel 2 Audio Power Shield Earth ground 3 q Y CABLE WIRING Chi e 5 4 Case lt va Pairi gt mm lt a Pair 2 l gt 3 o og Ch2 2 Pair3 gt L gt 1 Both wires Shield RO GAGE gt Shield Use second drain wire if available or add an extra section of wire Standard cables are generally constructed using a male connector at one end and a female connector at the other end This allows several cables to be interconnected to create longer cable runs Audiocom master stations speaker stations and belt packs also typically provide both a male and female Neutrik connector for each intercom channel This permits loop through connection of several intercom stations using the standard cables Audiocom power supplies use a 3 pin male Neutrik connector for each channel Audiocom wallplates use male Neutrik connectors Figure 11 Audiocom cable wiring diagrams 13 Power Up Make sure any local power supplie
6. Either a balanced or unbalanced dynamic microphone can be selected DC call enable This may be turned on to use the intercom station with intercom systems that use DC call signaling 3 Panel Mic Key Selects the Panel Mic connector Built in Mic 11 in the on position and the headset connector 10 in the off position 4 Speaker Key Selects the built in speaker in the on position and the Headset connector 10 in the off position Channel Select Key SS 2002 amp SS 2002RM only Selects intercom channel 1 or 2 The key lights green for channel 1 and red for channel 2 Volume Control Adjusts intercom listen volume to headphones or speaker Intercom Listen Key Both momentary push to listen and latching hands free listen are possible Call Key Used to send call signals on the intercom channel Flashes for incoming calls Intercom Talk Key Both momentary push to talk and latching hands free talk are possible All models are also equipped with a mic kill receive circuit which allows an operator at a remote master station such as the US 2000A to turn off the talk key on all stations on the intercom line 10 Dynamic Mic Headset Connector 4 pin male XLR connector accepts headsets with monaural headphones and either a balanced or unbalanced dynamic microphone Also accepts a telephone style handset Can also be used with head phones when a Panel Mic is connected Can also be used with a handheld microphone along with the intern
7. Pair gt Channel 2 Audio high Power lt gt Channel 1 Audio low Power lt L I Pair L gt Channel 1 Audio high Power 2 EE 13 Pair F gt DC Common p SE 5 wi z Ea ENAR RIRIRAASREARARA gt Shield Shield PIN 1 Ps OPTIONAL LOCAL R POWER SOURCE dE 12 to 15 VDC 250 mA Use PN 59702 000 DC COMMON Cable Type 22AWG Stranded 3 Pair Twisted wire with Shield ae Denotes twisted pair Denotes shield Shield Earth ground Connect at power supply only Do not short to DC common Figure 10 Audiocom mode connections for an SS2002 Intercom Station in a U box Note for Clear Com connection use the Unbalanced Mode Intercom Channel pin out information listed in the Specifications section 12 TYPICAL 1 CHANNEL CABLE WIRING pas gt Pair 1 gt a gt SB a 1 Both wires tod RATE gt Shield lt a sa a gt Shield Cable Type 22AWG Stranded 2 Pair Twisted wire with Shield Connector Type 3 Pin XLR Audio Neutrik or Switchcraft Pin 1 Common i Pin 2 Channel Audio Power d Denotes twisted pair Pin 3 Channel Audio Power i Shield Earth ground TYPICAL 2 CHANNEL CABLE WIRING i Denotes shield 4 lt ran i na gt 4 3 lt ji Pair 1 L gt 3 lt Pair 2
8. Telex User Instructions Model SS 1002 Single Channel Intercom Speaker Station Model SS 2002 Two Channel Intercom Speaker Station Model SS 2002RM Two Channel Rack Mount Intercom Speaker Station Audiocom Intercom Systems 9350 7741 000 Rev A 10 2002 FCC Statement This equipment uses and can radiate radio frequency energy that may cause interference to radio com munications if not installed in accordance with this manual The equipment has been tested and found to comply with the limits of a Class A computing device pursuant to Subpart J Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated in a commercial environment Operation of this equipment in a residential area may cause interference which the user at his own expense will be required to correct CE This product meets Electromagnetic Compatibility Directive 89 336 EEC Table of Contents Introduction sseeesessesecscseocosesecscscosesesscscssosesecsessoscsessesesscsesesse 4 Pescriptiol A O i O O Ona A Features woo cd cda ac Installation bi aoi O Unpackne woda cad Gal Gi GORGE 6 Configuration Pre check oai ko Os 6 DIP SS WALE NGS Za AGB Raaban iR R GA RE s 6 FOWERUD ad GG ME AIR AZORY 14 sidetone Adjustment ci O OE Bo coo AA OO EEG 14 ODErAl Om oco accy owo obawy sdi dw owa cdi LS Channel Select SS 2002 amp SS 2002RM Only sesssssssesssesssocssoossosssssesssecssoossoosso
9. al speaker 11 Panel Mic Connector Accepts an electret gooseneck microphone such as the Telex MCP 90 12 Built in Panel Microphone Active when the Panel Mic key is pressed and a gooseneck microphone is not inserted in the Panel Mic connector 13 Sidetone Trimmers These adjust the level of the user s own voice in the headphones when using full cushion head phones Eliminates the muffled sensation when talking with the ears completely covered When using the speaker or open ear style headphones the sidetone trimmers are adjusted to eliminate the user s voice from the headphones or speaker This helps to prevent feedback 14 Balanced Unbalanced Selector Switch This switch sets the intercom station for compatibility with either Audiocom balanced or Clear Com unbalanced intercom systems a O 0010 Brand names mentioned are the property of their respective companies TOP VIEW OF FACEPLATE 1 2 DIP SWITCH POSITIONS CLOSED ON ooooooo0 OPEN OFF ADO 5 4 N s 14 Adm QL o o BACK SIDE OF FACEPLATE 543 987 Top View Cover Removed 4 Audi z m7 u ocom Noo 0o ZAD ani SS2000 RM O O O Yj wlew LU Q l p Cover mountin volume m g plat yo O O 6 10 11 12
10. al stations are connected The disadvantage of the phantom power method is that some operating power is lost over very long intercom cables and performance at distant 8 intercom stations may be reduced Generally if intercom stations are within a few hundred feet from the system power supply phantom power will be sufficient Also note that increasing the number of stations will reduce the overall operating distance Phantom power is generally the only method that will be used to connect the S box P box and RM versions Figure 5 illustrates a phantom powered intercom system Note that the distance over which power can be delivered is less than the distance over which audio can be delivered Audio can be delivered for several miles to locally powered stations as described below Description of Locally Powered Connection Using this method an intercom station is connected to the intercom line just like any phantom powered intercom station except that a local power supply is also connected This local power supply is located with the intercom station and provides power for that station only Since power loss on the intercom lines is no longer an issue the operating range is now limited only to the audio transmission range which is several miles Another advantage to this method is that more stations can be connected to the intercom channels When local power is supplied to an intercom station the station detects this and automati call
11. ase that this product is suitable for the user s intended purpose ANY AND ALL IMPLIED WARRANTIES INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY ARE LIMITED TO THE DURA TION OF THIS EXPRESS LIMITED WARRANTY NEITHER TELEX NOR THE DEALER WHO SELLS TELEX PRODUCTS IS LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND CUSTOMER SUPPORT Technical questions should be directed to Customer Service Department Telex 12000 Portland Avenue South Burnsville MN 55337 U S A Telephone 952 884 4051 Fax 952 884 0043 RETURN SHIPPING INSTRUCTIONS Procedure for Returns If a return is necessary contact the dealer where this unit was purchased If a return through the dealer is not possible obtain a RETURN AUTHORIZATION from Customer Service Department Telex Communications Inc Telephone 1 800 392 3497 or 952 884 4051 Fax 1 800 323 0498 or 952 884 0043 DO NOT RETURN ANY EQUIPMENT DIRECTLY TO THE FACTORY WITHOUT FIRST OBTAINING A RETURN AUTHORIZATION Be prepared to provide the company name address phone number a person to contact regarding the return purchase order number the type and quantity of equipment a description of the problem and the serial number s Shipping to Manufacturer for Repair or Adjustment All shipments of products should be made via United Parcel Service or the best available shipper prepaid The equipment should be shipped in the original packing carton if that is not available use any s
12. el microphone connector To use headphones with a gooseneck microphone set the Speaker key to off set the Panel Mic Key to on and make sure that a gooseneck microphone is inserted in the panel microphone connector To use the speaker with a handheld dynamic microphone set the speaker key to on and set the Panel Mic Key to off To use the speaker with the built in panel microphone set the Speaker and Panel Mic keys to on and make sure that a gooseneck microphone is not inserted in the panel microphone connector To use the speaker with a gooseneck microphone set the Speaker and Panel Mic keys to on and make sure that a goose neck microphone is inserted in the panel microphone connector Receiving Calls When there is an incoming call signal the Call key will flash red There will also be a beep tone in the headphones or speaker if the beep feature is activated NOTE The incoming call indication is provided only for the currently selected intercom channel in the case of SS 2002 amp SS 2002RM models Turn on the Talk and Listen keys and begin your conversation Turn the keys off when finished NOTE You can turn the talk and listen keys on in either momentary or latched mode For momentary operation press and hold the key For latched operation tap the key to turn it on Then tap it again to turn it off when finished Calling an Intercom Channel 1 SS 2002 amp SS 2002RM only select the desired intercom channel 2 Pres
13. esistors 150 Ohm 1 4W A Capacitors 22 uf 35V Non polarized Electrolytic Common gt Figure 8 Audiocom mode line termination for dry line operation One required for each channel the termination is available via PN 9020 7550 000 10 TO ADDITIONAL TO POWER SINGLE CHANNEL STATIONS SUPPLY CONNECTOR lt D D gt Channel Audio high Power m HE Pari f gt Channel Audio low Power L I Pair 2 f gt gt DC Common R R a eee Shield Shield PIN Te 1 ee OPTIONAL LOCAL c POWER SOURCE IL m 12 to 15 VDC 250 mA Ce O DC gogn o COMMON ET Dt tt EEEI LE LI I O FF A Cable Type 22AWG Stranded 2 Pair Twisted wire with Shield Pa Denotes twisted pair Denotes shield Shield Earth ground Connect at power supply only Do not short to DC common Figure 9 Audiocom mode connections for an SS1002 Intercom Station in a U box Note for Clear Com connection use the Unbalanced Mode Intercom Channel pin out information listed in the Specifications section 11 TO ADDITIONAL TO POWER SINGLE OR TWO CHANNEL STATIONS SUPPLY CONNECTOR lt Doo gt Channel 2 Audio low Power lt I j
14. han 70 dB Common Mode Rejection Ratio greater than 50 dB Connector Type Six position push type terminal block Pin I Audio and DC Common Pin 2 Local power 12 to 15 VDC If needed Pin 3 Intercom channel audio low and 24 VDC power Pin 4 Intercom channel 1 audio high and 24 VDC power Pin 5 Intercom channel 2 audio low and 24 VDC power Pin 6 Intercom channel 2 audio high and 24VDC power Intercom Channels Unbalanced mode SW1 set to UNBAL position Output Level 0 70 Vrms 10 Input Impedance 200 ohms Bridging Impedance greater than 10k ohms Sidetone 40 dB 35 dB adjustable range Call Signaling Pin I Common Pin 2 Local power 12 to 15 VDC If needed Pin 3 Power 30 VDC Pin 4 Intercom channel 1 audio and DC call signaling Pin 5 Power 30 VDC Pin 6 Intercom channel 2 audio and DC call signaling Speaker Output Power 4W max 8 ohms Dimensions 2 125 9 125 powa 231 78 mm 53 98 mm lt A 6 75 171 5 mm v gS Box a oo p lt 4 125 244 48 mm 104 78 mm A 6 102 155 0 mm 8 563 Q Q 217 5 mm Vv P Box 8 11 gt 206 mm ER i 6 102 i i 155 mm 3 937 i 100 mm i ABER 5 6 102 gt 1 56 1 56 155 mm 39 6 mm 39 6 mm ar 812 Dia 3 Places m 69mm 20 63 mm gt gt lt 1 575 z A 40 mm
15. ines If intercom stations are widely distributed you can dispense with a system power supply PS2001L SPS 2001 etc and use local power for each station When no power is delivered on the intercom channels this is known as dry line operation Since a system power supply is not used a line termination must be inserted in each intercom channel for proper operation Again note that only the U box has provisions for local power The 3 pin connectors on the S P and RM versions do not permit this type of connection Figure 7 illustrates an intercom system using all locally powered U boxes SS2002 SS2002 SS2002 U Box U Box LOCAL POWER LOCAL POWER LOCAL POWER 12 to 15 VDC 250 mA 12 to 15 VDC 250 mA 12 to 15 VDC 250 mA LINE TERMINATION e e e e USEF R sg M NZ o WZ o Audiocom of Audiocom e A e e SS2002 SS2002 SS2002 U Box U Box U Box LOCAL POWER LOCAL POWER LOCAL POWER 12 to 15 VDC 250 mA 12 to 15 VDC 250 mA 12 to 15 VDC 250 mA Figure 7 An example of an Audicom intercom system using all locally powered U box stations with no power being distributed on the intercom channels dry lines Since an Audiocom power supply is not used the installer must connect a line termination somewhere in each channel for proper operation Channel audio low gt Channel audio high lt gt R
16. ingle channel station the SS 2002 amp SS 2002RM provide switch selectable access to either of two intercom channels Both the SS 1002 and SS 2002 come in three versions to suit a variety of applications The S box is a portable version It has a carrying handle and dual loop through intercom connectors which permit stations to be quickly interconnected using prefabricated cables The P box is a stationary version It also has dual loop through connectors for quick interconnection but the case is designed for desktop or console mount applications The U box is designed for permanent in the wall mounting It uses push type wire terminals for connection to the intercom system In addition the SS 2002RM can be used on a desktop or mounted in a standard 19 equipment rack using the optional RM 14 Rack Mount Kit Features 1 Channel and Power connections The U box uses quick release terminals to connect audio and power wires For the S box and P box versions the terminal connections are brought out to the dual loop thru XLR connectors on the side of the box These permit several stations to be connected in a string or daisy chain using prefabricated intercom cables 2 Configuration DIP switches These switches control the following features Call Beep In addition to a flashing call key indication for incoming calls an incoming call beep tone can also be used Headset Microphone Type Selection
17. losed Disabled no mic kill Open Enabled mic kill active Call signal Closed DC SWI set to UNBAL Open method Open Audiocom SW1 set to BAL p Incoming call Closed Disabled Onen beep Open Enabled p Closed Enabled DIP switch 3 must Speaker beep Dr incomine call be set to Open Open E Open Disabled 4 Microphone Closed Unbalanced Open type Open Balanced p eee jetem o Mic Kill Receive Audiocom master stations such as the US 2002A can transmit an inaudible signal to turn off the microphones in all remote intercom stations on an intercom channel This is useful when a remote intercom station has been left unattended with the microphone on The procedure to send a mic kill signal from a master station is a two step process so that it is very unlikely that microphones will ever be turned off by accident However you may wish to disable the mic kill receive feature at the intercom unit You might do this for example if communications will be of a very critical nature where it is absolutely essential the microphone never be remotely deactivated To enable the mic kill receive function set DIP switch to the open position To disable the mic kill function set DIP switch 1 to the closed position Call Signal Compatibility For Audiocom setup leave this switch in the open position and also leave the Balanced Unbalanced switch in the Balanced position For Clear Com setup set DIP switch 2 to the closed position and set the Balanced
18. r adjust the channel 1 sidetone trimmer to minimize your voice level in the head phones 5 SS 2002 amp SS 2002RM only activate channel 2 and repeat the above steps to adjust the channel 2 sidetone 6 Install the intercom station mounting screws after completing the adjustments The station is now ready for use If you are using headphones that completely enclose the ears adjust sidetone as follows 1 SS 2002 amp SS 2002RM only activate channel 1 as described in the operating instructions 2 Activate talk and listen as described in the operating instructions 3 Set the volume control to the normal listening level for intercom audio 4 While talking into the microphone use a small flat bladed screwdriver to adjust the channel 1 sidetone trimmer so that you can hear your own voice in the headphones at an acceptable level 5 SS 2002 amp SS 2002RM only activate channel 2 and repeat the above steps to adjust the channel 2 sidetone Operation Channel Select SS 2002 amp SS 2002RM Only Tap the Ch Select key to select channel 1 or 2 The key is green when channel 1 is selected and red when channel two is selected Headset Headphone Speaker Microphone Selection To use a headset or telephone style handset set the Speaker and Panel Mic keys to off To use headphones with the built in panel microphone set the Speaker key to off set the Panel Mic Key to on and make sure that a gooseneck microphone is not inserted in the pan
19. s and hold the Call key An inaudible call signal will be sent and the Listen key will automatically turn on 3 When you hear a response release the call key and activate the talk key 4 Turn off your Talk and Listen keys to end the conversation Specifications General Power Requirements Phantom Power 24 VDC nominal 175 mA Local Power 12 to 15 VDC 250 mA Dimensions See dimension drawings Environmental Requirements Storage 20 C to 80 C 0 to 95 RH non condensing Operating 15 C to 60 C 0 to 95 RH non condensing Dynamic mic Headset Handset Microphone 50 to 200 ohms dynamic balanced or unbalanced Headphones 150 to 600 ohms monaural Connector Type XLR 4M Pin 1 Microphone Low Pin 2 Microhpne High Pin 3 Headphone High Pin 4 Headphone Low Panel Microphone Built in Microphone 2 2k ohms electret 44 dB nominal Omnidirectional Gooseneck Microphone Connector Type 4 Threaded TRS 5k ohms electret 47 dB nominal Tip Microphone High 12 VDC bias Ring Common Sleeve Common Compatible with MCP 90 Series Microphones Intercom Channels Balanced mode SW1 set to BAL position Output Level 1 Vrms nominal Input Impedance 300 ohms Bridging Impedance greater than 10k ohms Sidetone 40 dB 35 dB adjustable range Call Signaling Send 20 kHz 100 Hz 0 5 Vrms 10 Receive 20 kHz 800 Hz 100 mVrms Mic Kill Detect Frequency 24 kHz 800 Hz 100mVrms Noise Contribution less t
20. s are plugged in then turn on the power switches of any phantom power supplies PS 2001L SPS 2001 etc Sidetone Adjustment The SS 1002 SS 2002 and SS 2002RM use full duplex audio the same as conventional telephone lines in which the talk and listen audio are sent and received on the same wires Thus when you talk you also here your own voice back as with a telephone If you are using the built in speaker for listening and a either a panel microphone or handheld microphone for talkback you could experience unwanted feedback since the microphone may pick up your returned voice audio from the speaker and re amplify it This could also happen if you are using a headset or headphones with open ear style earmuffs On the other hand if you are using earmuffs that completely enclose the ears the microphone is not likely to pick up the returned audio A certain amount of your own voice level is desirable to overcome the muffled sensation when talking The sidetone adjustment is different for these different operating conditions If you are suing the speaker with a panel microphone or if you are using an open ear style headset or headphones adjust sidetone as follows 1 SS 2002 amp SS 2002RM only activate channel 1 as described in the operating instructions 2 Activate talk and listen as described in the operating instructions 3 Slowly increase the volume to maximum while talking into the microphone 4 Using a small flat bladed screwdrive
21. signed for permanent installation and it can be either phantom powered or locally powered Description of Phantom Powered Connection 1 1 channel cable PS2001L or SPS2001 etc Combine Isolate Switch Yy Y cable set to Isolate WB 0 6 c 27 2 channel cable 1 1 US2002A x A 0 im Ame 10000 To all stations gt To all stations on channel 1 on channel 2 BP 1002 iW BP 1002 1 1002 P Box SS1002 1 1 S Box 1 6 Yy Note A JB 2 Junction Box may be used instead of the Y cable 2y BP 2002 SS2002 S Box Loa Figure 5 An example of a phantom powered system In this system a PS 2001L power supply is set to isolate mode In this mode each channel is a separate party line and current per channel is limited to 1 amp Note that both single and two channel intercom stations may be connected by using Y cables or JB2 Junction boxes Prefabricated cables may be used or cables may be constructed using the diagrams in Figure 11 In this method operating power and intercom audio for the entire intercom system ware carried over the same wires The advantage of this method is simplicity of connection The system power supply PS 2001L SPS 2001A etc automatically provides what is know as a terminating impedance for the intercom system Without this terminating impedance the sound quality will be distorted and the levels will shift every time addition
22. ssssosessosesoosso 15 Headset Headphone Speaker Microphone Selection 000 200000000000000o0oooooooooooaoooooaoooowaco0o 15 Receiving CS O GR a W APA daw 15 Calling an Intercom Channel second oce GO 15 Specifications visscesceceusrsacossbectacdcuedoestecsteracenaveesctsctecdosoesseseeseese LG GENEFAL ERO EE E a wid EE O EO 16 Dynamie mic Headset Handset sdi ai naiwni Gia id 16 Panel Microphone zo RO CR OO 16 Intercom Channels Balanced mode SW1 set to BAL position eesueeoouoooooaoooooaooo0a 16 Intercom Channels Unbalanced mode SW1 set to UNBAL position 20 2 00v0000000000 16 Speaker Output Power asi AE BA AEO o aa 17 Dimensions wo ER ORO OOO 17 Introduction Thank you for purchasing the Audiocom SS 1002 SS 2002 SS 2002RM Intercom Speaker Station We hope the many design features of this product will satisfy your intercommunication requirements for many years to come To get the most out of your new intercom station please take a few moments to look through this booklet before using the Intercom Speaker Station for the first time Description The Intercom Speaker Stations may be used with a headset or with the built in speaker and the panel microphone or an optional gooseneck microphone Another alternative is to use headphones and either the built in panel microphone or an optional goose neck microphone As an alternative to a headset a telephone style handset may also be used The SS 1002 is a s
23. uitable container that is rigid and of adequate size If a substitute container is used the equipment should be wrapped in paper and surrounded with at least four inches of excelsior or similar shock absorbing material All returns must include the return authorization number Units sent for repair or adjustment DO NOT need a return authorization number Factory Service department Telex Communications Inc West 1 Street Blue Earth MN 56013 U S A Upon completion of any repair the equipment will be returned via United Parcel Service or specified shipper collect 18
24. y disconnects from the system s phantom power supply Figure 6 illustrates an intercom system with both phantom powered and locally powered U boxes As long as a system power supply PS 2001L SPS 2001 etc is located somewhere in the intercom system the proper terminating impedance will still be suppled for all stations However if all stations are locally powered and there is not system power supply a special line termination must be installed 500 METERS SS1002 SS2002 SS2002 U Box U Box U Box LOCAL POWER 12 to 15 VDC 250 mA NY Mludiocom e el PS2001L or SPS2001 etc SS2002 881002 SS2002 U Box U Box U Box Figure 6 A two channel Audiocom intercom system using a PS2001L power supply the PS2001L is set to isolate mode In isolate mode each intercom channel is a separate party line and total current for each channel is limited to 1 amp Note that both SS1002 and SS2002 stations may be connected depending on each location s need to communicate with one or two channels SS1002 stations may be connected to either channel one or two Also note that locally powered stations may be connected This is recommended when stations are installed at remote locations Since the PS2001L provides termination for the intercom channels no user installed termination is required All Locally Powered Intercom Stations Dry L
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