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HS RS-232

↔

60 MA CURRENT LOOP CONVERTER

Appendix: RS-232C Pin Configurations

Figure A-1. Standard DCE Setting.

Data Term. Ready (DTR) - 20

1- (FG) Frame Ground

2- (TD) Transmit Data

3- RD) Receive Data

4- (RTS) Request to Send

5- (CTS) Clear to Send

6- (DSR) Data Set Ready

7- (SG) Signal Ground

8- (DCD) Data Carrier Detect

To Converter

From Converter

To Converter

From Converter

To Converter

DIRECTION

STANDARD “DCE” SETTING

DIRECTION

Summary of Contents for CL080A-F

Page 1: ...hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com JULY 1997 CL080A F CL081A M CL080A M CL082A F CL081A F CL082A M HS RS 232 60 ma Current Loop Converter HS RS232 60ma Current Loop Converter ...

Page 2: ...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 user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for...

Page 3: ...te 7 El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación Todo otro servicio deberá ser referido a personal de servicio calificado 9 El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su us...

Page 4: ...so de existir una antena externa deberá ser localizada lejos de las lineas de energia 16 El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación 18 Servicio por personal calificado deberá ser provisto cuando A El cable...

Page 5: ...uction 6 3 Configuration 7 3 1 Setting the DCE DTE Switch 8 4 Installation 9 4 1 Twisted Pair Wiring Overview 9 4 1 1 Twisted Pair Connection Using Terminal Blocks 9 4 1 2 Twisted Pair Connection Using Modular Jacks 15 4 2 Completing the Installation 16 Appendix RS 232C Pin Configurations 17 ...

Page 6: ...ppression Over voltage protection for opto isolators via Silicon Avalance Diodes Connectors CL080A F 1 DB25 female 1 terminal block CL080A M 1 DB25 male 1 terminal block CL081A F 1 DB25 female 1 RJ 45 CL081A M 1 DB25 male 1 RJ 45 CL082A F 1 DB25 female 1 RJ 11 CL082A M 1 DB25 male 1 RJ 11 Power Supply No external power required uses power from RS 232 interface Temperature Range 32 to 122 F 0 to 50...

Page 7: ...to 4 miles over two unconditioned 24 AWG twisted pair depending on the data speed To guard against data loss due to ground loops the Converter is equipped with 2500 V RMS optical isolators The Converter connects directly to the RS 232 interface using a male or female DB25 connector Two pair cable running to the 60 mA current loop device attaches to the Converter by an RJ 11 jack RJ 45 jack or term...

Page 8: ...nit you may need to open the case for wire connection refer to Chapter 4 The only configuration necessary for operation is proper setting of the external DCE DTE switch The diagram below shows the location of the DCE DTE switch on the PC board as well as the location of the terminal block and surge suppressors S model only Figure 3 1 PC Board DCE DTE DCE DTE Switch Opto Isolator Terminal Block Opt...

Page 9: ... is a modem or multiplexor or is wired like one set the switch to DTE This setting causes the Converter to behave like Data Terminal Equipment and transmit data on pin 2 If the RS 232 device connected to the Converter is a PC terminal or host computer or is wired like one set the switch to DCE This setting causes the Converter to behave like Data Communications Equipment and transmit data on pin 3...

Page 10: ...wire 19 to 26 AWG Best distance is achieved with larger gauges When you have completed wiring for your data circuit the pin connections should be as shown below XMT RCV XMT RCV G To Shield Optional G RCV XMT RCV XMT 4 1 1 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS The terminal block strain relief version of the Converter allows you to hook up the line side interface using bare wires The followi...

Page 11: ...10 HS RS 232 60 MA CURRENT LOOP CONVERTER Figure 4 2 Opening the Unit Figure 4 3 Opening the Unit ...

Page 12: ...A CURRENT LOOP CONVERTER 2 Strip the outer insulation from the twisted pairs about one inch from the end 3 Strip back the insulation on each of the 2 twisted pair wires about 1 4 inch Figure 4 4 Stripping the Insulation ...

Page 13: ...n being careful to observe the polarity The wire connected to RCV must be connected at the other end of the telephone line to XMT in the other unit and the wire connected to RCV must be connected at the other end of the telephone line to XMT in the other unit 6 If there is a shield around the telephone cable it may be connected to G on the terminal block To avoid ground loops we recommend connecti...

Page 14: ... press together very lightly Slide the assembly so that it is about 2 inches from the terminal posts and press together firmly Figure 4 6 Strain Relief Assembly 9 Insert the strain relief assembly with the wire going through it into the slot in the bottom half of the modem case and set it into the recess in the case DCE DTE RCV G XMT ...

Page 15: ... CURRENT LOOP CONVERTER Figure 4 7 Inserting the Strain Relief Assembly into the Slot 10 BEND the top half of the case as necessary to place it over the strain relief assembly Do not snap the case together yet RCM G XMT ...

Page 16: ...AIR CONNECTION USING MODULAR JACKS The modular versions of the Converter have an RJ 11 or RJ 45 jack mounted in the case These jacks are prewired for a standard telco wiring environment To be sure you have the right wiring use the table below as a guide RJ 11 SIGNAL RJ 45 SIGNAL 1 GND 1 N C 2 RCV 2 GND 3 XMT 3 RCV 4 XMT 4 XMT 5 RCV 5 XMT 6 GND 6 RCV 7 GND 8 N C Connection to ground is optional Fig...

Page 17: ...e twisted pair wires correctly simply plug the Converter into the RS 232 data port Remember to insert and tighten the two captive connector screws The Converter requires no power supply or batteries for operation It will work automatically at any data rate from 50 to 115 2 kbps as long as there is any data or control voltage being applied ...

Page 18: ...rm Ready DTR 20 1 FG Frame Ground 2 TD Transmit Data 3 RD Receive Data 4 RTS Request to Send 5 CTS Clear to Send 6 DSR Data Set Ready 7 SG Signal Ground 8 DCD Data Carrier Detect To Converter From Converter To Converter From Converter From Converter From Converter To Converter DIRECTION STANDARD DCE SETTING DIRECTION ...

Page 19: ... FG Frame Ground 2 TD Transmit Data 3 RD Receive Data 4 RTS Request to Send 5 CTS Clear to Send 6 DSR Data Set Ready 7 SG Signal Ground 8 DCD Data Carrier Detect From Converter To Converter From Converter To Converter To Converter To Converter From Converter DIRECTION STANDARD DTE SETTING DIRECTION ...

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