Black Box ME540A-ST
Contents
1. Application Diagram forms are found on pages 19 21 and 23 You may be asked to fax your diagram to the Technical Support department Use scissors to remove the page Ane Tx B A B A Local Node Remote Node XW2 XW2 Xwl Xwl W3 W3 2 2 SS S5 WA W5 SS W5 W6 W6 SQ S2 S3 S3 S1 S1 NOTE NOTE 0 Open or Off 0 Open or Off 1 Closed or On 1 Closed or On nm FOM LINE DRIVER ST AND SM RX TX Local Node XW2 XWI W3 W2 S5 W4 w5 W6 S2 53 1 Remote Node XW2 XWI W3 W2 55 WA W5 W6 52 53 1 0 Open or Off 1 Closed or On NOTE 0 Open or Off 1 Closed or On FOM LINE DRIVER ST AND SM TX IT Hos B A Local Node XW2 XWI W3 W2 S5 W4 w5 W6 S2 53 1 TX Ane Remote Node XW2 XWI W3 W2 55 WA W5 W6 52 53 1 0 Open or Off 1 Closed or On NOTE 0 Open or Off 1 Closed or On nm FOM LINE DRIVER ST AND SM FOM LINE DRIVER ST AND SM BLACK BOX Copyright 1998 Black Box Corporation All rights reserved 1000 Park Driv2. BL ACK BOX TT TT FEBRUARY 1998 ME540A ST ME540A SM FOM Line Driver ST FOM Line Driver SM FOM LINE DRIVER 9 NORMAL 7777 De PORT CUSTOMER Order toll free in the U S Call 877 877 BBOX outside U S call 724 746 5500 SUPPORT FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 INFORMATION Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com FEDERAL COMMUNICATIONS COMMISSION AND CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates uses and can radiate radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communication It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area Is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the
3. Unterminated Terminated Factory default KEY 0 Open Off 1 Closed On FOM LINE DRIVER ST AND SM Fiberoptic Cable Connections Because of the subtleties of the various modes of operation review Chapter 3 Configurations for the proper inter unit connections If you chose XW2A RS 232 as your interface selection go to Section 4 2 If you chose XW2B RS 485 as your interface selection go to Section 4 3 If you chose XW2C 20 mA current loop as your interface selection go to Section 4 4 4 2 RS 232 Follow these instructions to set up the RS 232 interface 1 Set XW1 XWIA sets the Driver for DCE XWIB sets the Driver for DTE XWIA DCE XWIB DTE DB9 Pinouts DCE DTE 2 TX Data 2 RX Data 3 RX Data 3 TX Data 7 RTS Input 7 RTS Held High 4 DTR Input 4 DTR Held High 8 CTS Output 5 Signal Ground 6 DSR Held High 8 No Connect 1 0D Held High 6 No Connect 5 Signal Ground 1 No Connect 2 Set W3 If you selected XWIA DCE Position AB will enable DTR DTR controls CTS In position BC RTS controls CTS If you selected XW1B DTE all handshake leads are ignored and W3 will have no effect It s not necessary to set W3 If XWIA was selected Position AB DTR Or If XWIA was selected Position BC RTS loops back to raise CTS or If XWIB was selected W3 has no effect 3 Set W2 W2 sets the delay of CTS assertion with the raising of DTR or RTS 0 mea
4. after the TX of the last data bit Delays are nu SENA 33 o XW2B RS 485 interface RXA Loopback n FE Switch ropt TX mo A RXB TXB Slave Master nx B TXB 1 Lr ci El El El cy Pos 1 Mode Select 0 Network Mode 1 Master Slave Mode W4 and WS Pos 2 Master Slave Select Set for the AB position 4 wire 0 Master Set for the BC position 2 wire 1 Slave Pos 3 amp 4 Bias TX see pg 9 0 No Bias 1 Biased Pos 5 amp 6 Bias RX see pg 9 KEY 0 No Bias 1 Biased 0 Open Off 1 Closed On Pos 7 8 8 RS 485 Termination 0 Unterminated 1 Terminated Figure 5 2 Circuit board with 115 485 options VA FOM LINE DRIVER ST AND SM S5 set to A 20mA XW2C 20 mA 20 mA interface Terminal Block Loopback Switch ma OG H gt San mk RX B RS 232 TXB Slave LJ B H gt Master D Network es 1 20ma Li H 85 485 zi H 85 232 S1 Pos 1 Mode Select S2and 3 0 Network Mode S2 Pos A Active RX 1 Master Slave Mode S2 Pos B Passive RX Pos 2 Master Slave Select S3 Pos A Active TX 0 Master S3 Pos B Passive TX 1 Slave KEY 0 Open Off 1 Closed On Figure 5 3 Circuit board with 20 mA current loop options 6 Troubleshooting 6 1 Application Problems
5. you do not need to set S1 position 2 S1 Position 2 Master Slave Select NOTE To use the following switch positions appropriately you should have a firm understanding of your network requirements S1 Position 5 and 6 are used as a pair to bias the Line Driver s receivers and must be moved together S1 Position 3 and 4 are used as a pair to bias the Line Driver s TX pair and must be moved together In most RS 485 applications you would bias your RX SI Position 5 and 6 ON or closed For example say you have an RS 485 network in an idle condition with all nodes in the receive mode Since the drivers are tri stated the line voltage could be either positive or negative there s no way to know for sure If the voltage level at the TB1 2 and TB1 1 inputs is less than 200mV the logic level at the output of the RX will be the last bit received To force the line into an idle condition you d need to set the switch 51 Position 5 and 6 which will add resistors Refer to Figure 4 1 S1 Positions 3 through 6 RS 485 Failsafe Biased Line If you selected RS 485 as your interface you ll need to set 51 positions 7 and 8 for termination The physical ends the first and last Drivers must be terminated and the ones in between are unterminated Positions 7 and 8 must be set in pairs both terminated or both unterminated Note that a star topology will not work with these Line Drivers S1 Positions 7 and 8 RS 485 Termination 0
6. current loop or the RS 485 terminal block the data is passed through to the master s B optical port From there it is daisychained to each slave s B optical RX As each slave receives the data it is passed through to the DB9 RX and the receive RX terminal block When the data reaches the slave that needs to respond it will send data to the optical A TX port and out to the next daisychained slave in the direction of the master The information is retransmitted and travels from daisychained slave to slave in the direction of the master until it reaches the master s Port A Figure 3 2 illustrates this configuration Although the information is traveling through the other slaves slaves don t see data from other slaves This keeps the slaves from having to stop working in order to translate another slave s information Master Slave Slave Slave Transmitting Receiving Receiving Receiving Receiving Receiving Transmitting Receiving Fiber Cabling Master Slave Slave Slave Figure 3 2 One unit configured as a master all others as slaves As you look at the example above keep these things in mind Data flow is half duplex only The master transmits out of Port B only Slaves transmit out of Port A only and that transmission goes to the master When a slave receives data in Port A the data is looped back out Port A When a slave receives data in Port B the data is looped back out Port B and is sent out the DB9 port from t
7. slave mode or point to point configuration In network mode all of the units are configured If you want one Line Driver configured as a master and the others as slaves you need to be in master slave mode Finally point to point configuration is a full duplex mode where both FOM Line Drivers are configured as masters This chapter describes each scenario in greater detail Read the entire chapter before deciding which configuration 15 right for you 3 1 Network Mode In this mode data sent to the transmitter TX of the RS 232 DB9 20 mA current loop or RS 485 terminal block is passed out to both optical transmitters TX Data received from either optical receiver RX is passed through to the opposite optical port s transmitter TX to the receiver RX of the RS 232 DB9 the 20 mA current loop or the RS 485 port NOTE There is no collision detection 232 485 C Loop 232 485 C Loop 232 485 C Loop 232 485 C Loop Receiving Transmitting Receiving Receiving Receiving Receiving Transmitting Receiving Fiber Cabling Figure 3 1 All units configured in network mode As you look at the example above keep these things in mind n network mode all of the devices look the same There are no masters or slaves Data flow is half duplex only All devices see all data on the network FOM LINE DRIVER ST AND SM 3 2 Master Slave Mode When the master sends data to the transmitter TX of the RS 232 DB9 the 20 mA
8. 14 F 0 to 45 C 40 to 176 F 40 to 80 C 115 VAC 60 50 Hz external part number PS154 1 8 H x 5 5 W x 8 5 D 4 6 x 14 x 21 6 cm 2 Ib 0 9 kg 2 Introduction With the FOM Line Driver you can use an RS 232 RS 485 or 20 mA digital current loop device in a multi drop half duplex or point to point full duplex environment using fiber optics as the transmission media The Driver is user configurable in any of these operating modes network mode master slave mode or full duplex point to point configuration 2 1 Ports The FOM Line Driver has a single RS 232 DB9 female connector TX and RX are parallel with a 20 mA current loop and RS 485 interface sharing a common terminal block with a switch to select the desired interface This will let you connect an RS 232 RS 485 or current loop device to a fiberoptic link There are also two sets of fiberoptic receivers and transmitters with ST or SMA connectors supporting standard fiber cable through 200 microns multimode 2 2 Speed and Distance The Line Driver runs at up to 20 Kbps on the 20 mA current loop port up to 64 Kbps on the RS 232 port and up to 128 Kbps on the RS 485 port Maximum distance is 5000 feet 1524 m Figure 2 1 illustrates the Line Driver s features WALLMOUNT POWER SUPPLY CONNECTORS CONNECTORS TERMINAL BLOCK Figure 2 1 The FOM Line Driver BM 3 Configurations There are three operating modes you can choose from network mode master
9. If you re having a problem with your application reread the manual Make sure you ve selected the appropriate switches for the interface you chose If your Line Driver is still not working properly fill out an application diagram found on pages 19 21 and 23 Do this before you call for technical support Having this information handy will help the Technical Support staff determine whether your Line Driver has been configured correctly for your application 6 2 Calling Your Supplier If you determine that your FOM Line Driver is malfunctioning do not attempt to alter or repair the unit It contains no user serviceable parts Contact your supplier Before you do make a record of the history of the problem Your supplier will be able to provide more efficient and accurate assistance if you have a complete description including the nature and duration of the problem when the problem occurs the components involved in the problem any particular application that when used appears to create the problem or make it worse yp pp pp p 6 3 Shipping and Packaging If you need to transport or ship your Line Driver Package it carefully We recommend that you use the original container If you are shipping the FOM Line Driver for repair make sure you include everything that was included in the original package Before you ship contact your supplier to get a Return Materials Authorization RMA number FOM LINE DRIVER ST AND SM
10. culos ER s donde salen del aparato 5 El aparato el ctrico no deber ser usado cerca del P agua por ejemplo cerca de la tina de ba o lavabo 14 El equipo el ctrico debe ser limpiado tinicamente de s tano mojado o cerca de una alberca etc acuerdo a las recomendaciones del fabricante 6 El aparato el ctrico debe ser usado Gnicamente con 15 En caso de existir una antena externa deber ser carritos o pedestales que sean recomendados por el localizada lejos de las lineas de energia fabricante mas 16 El cable de corriente debera ser desconectado del 7 El aparato el ctrico debe ser montado a la pared o al cuando el equipo no sea usado por un largo periodo techo s lo como sea recomendado por el fabricante de tiempo 8 Servicio El usuario no debe intentar dar servicio al 17 Cuidado debe ser tomado de tal manera que objectos equipo el ctrico mas all a lo descrito en las liquidos no sean derramados sobre la cubierta instrucciones de operaci n Todo otro servicio deber orificios de ventilaci n ser referido a personal de servicio calificado 18 Servicio por personal calificado deber ser provisto 9 El aparato el ctrico debe ser situado de tal manera cuando que su posici n no interfiera su uso La colocaci n del aparato el ctrico sobre una cama sof alfombra o A El cable de poder o el contacto ha sido dafiado u superficie similar puede bloquea la ventilaci n no se debe colocar en libreros o gabin
11. e Lawrence 15055 1018 724 746 5500 Fax 724 746 0746
12. etes que impidan el flujo de aire por los orificios de ventilaci n B Objectos han ca do o l quido ha sido derramado dentro del aparato o El to ha sid to a la lluvia 10 El equipo el ctrico deber ser situado fuera del alcance 5 de fuentes de calor como radiadores registros de D El aparato parece no operar normalmente o calor estufas u otros aparatos incluyendo muestra un cambio en su desempe o o amplificadores que producen calor SE P E Elaparato ha sido tirado o su cubierta ha sido dafiada FOM LINE DRIVER ST AND SM Contents Chapter Page L Speer save SAT 4 2 Introduction mardele b re Sa 5 DM POTES A E 5 2 21 Speed and DISTanges ET 5 6 BRI Network Mode 0 7 es 6 3 2 7 3 30 7 8 Z SN nn ShA eat yal een 9 db ebur va dM M 9 mc ITE 10 10 44 20 mA Current Loop Point to Pont as u totes ie 13 Di ik Setup Guide A A a kaa u A uyu unas 14 b A ua 17 6 1 Application Problems netten A AA rna reni Sus bien NR e RR RS 17 6 27 Calling Your Supplher A O A kasan sss 17 6 3 Shipping 17 TRADEMARKS USED IN THIS MANUAL ST is a registered trademark of American Telephone and Telegraph Co
13. he master The master receives in Port A only HM FOM LINE DRIVER ST AND SM 3 3 Point to Point Set up as shown in Figure 3 3 the Line Driver can run in full duplex mode across the fiber connecting an RS 232 RS 485 or 20 mA current loop device to another RS 232 RS 485 or 20 mA current loop device TERMINAL 3 1 TERMINAL BLOCK 9 BLOCK Figure 3 3 Point to point Both units configured as masters NOTE The same interface is not required on both sides 4 Installation 4 1 Setup Factory default settings are marked with asterisks Determine which interface should be active and set XW2 accordingly RS 232 0 XW2A RS485 jp a y yki XW2B 20 mA Current Loop XW2C Determine the mode in which you want the Line Driver to operate If you want all of the Line Drivers to be configured choose 0 on S1 position 1 for Network Mode If you want the Master Slave Mode for either a half duplex mode where one Line Driver is the master and the others are slaves or for point to point the full duplex mode where both Line Drivers are configured as masters choose 1 S1 Position 1 Mode Select 0 Network Mode Master Slave Mode If you choose to operate in Master Slave Mode you need to designate whether this Line Driver will be a master or a slave On 51 set position 2 to 0 if you want the Driver to be a master and 1 if you want it to be a slave If you chose Network mode above
14. imultaneously To terminate Position 7 I terminated Position 8 1 terminated Not terminated Position 7 0 unterminated Position 8 0 unterminated Factory default KEY 0 Open Off 1 Closed On FOM LINE DRIVER ST AND SM 5 Biased Failsafe Operation 51 positions 3 through 6 S1 positions 3 through 6 when in the I or ON position switch in a 1K pull up resistor to the A input output and a 1K pull down to the B input output see Figure 4 1 0 is the OFF position In almost all 2 or 4 wire RS 485 applications positions 3 and 4 should be OFF and positions 5 and 6 should be ON Note that positions 3 and 4 and positions 5 and 6 should always be moved in pairs either both open or both closed NOTE To use S1 positions 3 through 6 appropriately you should have a firm understanding of your network requirements Line Driver S1 Position 3 N Jw TB1 4 Data Flow gt TB1 3 V V V S S1 Position 4 45V 1K I I I I S1 Position 6 I I I I 1K Am TB1 2 Fx O 2 Data Flow 1181 1 rms m Ny S1 Position 5 I 1K 5V Figure 4 1 Biased Failsafe Operation Switches RS 485 FOM LINE DRIVER ST AND SM 4 4 20 mA Current Loop Point to Point NOTE To use the following switch positions appropriately you should have a firm understanding of your network requirements 1 Connect the wire to the terminal block Set the wire to TB1
15. mpany All applied for and registered trademarks are the property of their respective owners 1 Specifications Protocol Speed Maximum Distance Operation No of Drops Supported Interface Connectors Indicators User Controls Link Budget Fiber Launch Power Receiver Sensitivity Wavelength Cable Requirements MTBF Relative Humidity Tolerance Operating Temperature Storage Temperature Power Size Weight Asynchronous Transparent through 20 Kbps on 20 mA current loop port 64 Kbps on RS 232 port 128 Kbps on RS 485 port 5000 feet 1524 m on 62 5 micron Network or master slave mode multipoint half duplex NOTE A software protocol is required Point to point line driver operation full duplex 64 RS 232 DCE DTE RS 485 20 mA current loop active or passive transmit and receive fiberoptic transmit and receive 1 DB9 4 ST or SMA 1 4 screw terminal block 10 LEDs 232 485 20mA NETWORK MASTER SLAVE PORT B TXD PORT B RXD PORT A TXD PORT A RXD 1 Pushbutton Pressed in enables DLB Digital Loopback mode and fully extended enables NORMAL mode 50 125 cable 2 5 dB 62 5 125u cable 6 dB 100 140 cable 11 5 dB 14 dB 25 dB 820 nm Use multi mode fiber cable use up to 200 micron fiberoptic cable 62 5 micron fiber is recommended 168 000 hours 10 to 95 noncondensing 32 to 1
16. ns there will be no delay 10 gives you a 10 millisecond delay and 30 is a 30 millisecond delay escitas No delay EE 10 msec delay S senses 30 msec delay Factory default FOM LINE DRIVER ST AND SM 4 3 5 Follow these instructions to set up the RS 485 interface 1 Connect the wire to the terminal block Set the wire to TB1 the 4 wire terminal block as indicated below for 4 wire RS 485 applications Position 1 Receive B positive Position 2 Receive A negative Position 3 Transmit B positive Position 4 Transmit A negative For 2 wire RS 485 applications tie Transmit A negative to Receive A negative and Transmit B positive to Receive A positive See the illustration below QI RXB lt jM J TXB S TXA 2 Set 55 Move S5 to the RS 485 position S5 determines which circuit is tied to TBI 3 Set W4 W5 and W6 For 4 wire operation W4 and W5 are in the A B position as shipped When configured for 4 wire W6 is not used For 2 wire operation Move W4 and W5 to the B C position W6 is now used to set the time the driver will remain enabled after the transmission of the last data bit see below 7 msec delay 2 msec delay 0 7 msec delay D 0 15 msec delay 4 Set SI If the RS 485 receiver needs to be terminated move 1 positions 7 and 8 both ON Note that both switches must either be ON or OFF s
17. the 4 wire terminal block as indicated below for 4 wire current loop applications Position 1 Receive B positive Position 2 Receive A negative Position 3 Transmit B positive Position 4 Transmit A negative 2 Set 55 Move S5 to the Current Loop position A 55 determines which circuit is tied to TB1 3 Set S2 and S3 To configure the current loop transmitter and or receiver as active or passive set S2 and 53 as shown below S2 20 mA Current Loop Receive FOM LINE DRIVER ST AND SM 5 Quick Setup Guide XW1B Sets the RS 232 interface for DTE XW1A Sets the RS 232 interface for DCE W2 RTS CTS delay 0 10 30 ms XW2A RS 232 interface Loopback Switch RX A TX OS x 8 5 8 F of RS 232 interface TXB DB9 connector FG 0 Slave T CO RX 8 TF Network Master 20mA is gt 00 000000001 2 When the unit is set to DCE XW1A Pos AB selects CTS response to DTR Pos BC selects CTS response to RTS When the unit is set to DTE XW1B this strap has no function Pos 1 Mode Select 0 Network Mode 1 Master Slave Mode S1 Pos 2 Master Slave Select 0 Master 1 Slave EY en Off osed On Figure 5 1 Circuit board with RS 232 options FOM LINE DRIVER ST AND SM W6 When in 2 wire this is the time that the driver remains enabled
18. user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of the Canadian Department of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de classe A prescrites dans le R glement sur le brouillage radio lectrique publi par le minist re des Communications du Canada INSTRUCCIONES DE SEGURIDAD Normas Oficiales Mexicanas Electrical Safety Statement 1 Todas las instrucciones de seguridad y operaci n 11 El aparato el ctrico deber ser connectado a una deber n ser le das antes de que el aparato el ctrico fuente de poder s lo del tipo descrito en el instructivo sea operado de operaci n o como se indique en el aparato 2 Las instrucciones de seguridad y operaci n deber n 12 Precauci n debe ser tomada de tal manera que la ser guardadas para referencia futura tierra fisica y la polarizaci n del equipo no sea eliminada 3 Todas las advertencias en el aparato el ctrico y en sus instrucciones de operaci n deben ser respetadas 13 Los cables de la fuente de poder deben ser guiados de 0 tal manera que no sean pisados ni pellizcados por 4 Todas las instrucciones de operaci n y uso deben ser objetos colocados sobre o contra ellos poniendo seguidas particular atenci n a los contactos y recept
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