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17

HS RS-232

↔

CURRENT LOOP CONVERTER ACTIVE

2
3
4
5
6
7
8

20

3
1
6
4

2

5

Level

Conversion

Amplifier

Constant

Current

Amplifier

Data

Detection

LED

Optocoupler

T
e

r

m

i

n
a

l

B

l

o
c
k

TX+
TX-
GND
RX-
RX+

9VDC

Level

Conversion

Amplifier

Data

Detection

LED

Current

Limiter

9VDC

Constant

Current

Amplifier

Current

Source

Reference

DCE/DTE

Switch

Active/

Passive

Switch

NC

NC
NC

Regulated

Power Supply

LED

Power

In

9VDC

Appendix B. Block Diagram

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16
17
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19
20
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Summary of Contents for CL090A-F

Page 1: ...746 5500 or fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com FEBRUARY 1996 CL090A F CL090AE F CL090A M CL090...

Page 2: ...erference 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...

Page 3: ...sado nicamente con carritos o pedestales que sean recomendados por el fabricante 7 El parato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El...

Page 4: ...r limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser des...

Page 5: ...n 7 3 1 Setting the DCE DTE Switch 7 3 2 Setting the Active Passive Switch 8 4 Installation 10 4 1 Twisted Pair Wiring 10 4 1 1 Twisted Pair Connection Using Terminal Blocks 10 4 1 2 Twisted Pair Conn...

Page 6: ...F CL092AE M RJ 45 Operation Transmitter is always active receiver can be configured as active or passive with a switch Transmission Line 19 to 26 AWG twisted pair Range 4 miles 6 4 km on 24 AWG twiste...

Page 7: ...6 4 km over two unconditioned 24 AWG twisted pairs To guard against data loss due to ground loops the Converter is equipped with 1500V RMS optical isolators on the line side The HS RS 232 Current Loop...

Page 8: ...he proper setting of two switches the external DCE DTE switch and the internal active passive switch 3 1 Setting the DCE DTE Switch The figure below shows the location of the DCE DTE switch on the PC...

Page 9: ...3 and receiving data on pin 2 Remember the switch setting is always from the point of view of the HS RS 232 Current Loop Converter Active not the connected equipment 3 2 Setting the Active Passive Swi...

Page 10: ...9 HS RS 232 CURRENT LOOP CONVERTER ACTIVE CAUTION Never connect two active devices together Your configuration must be active to passive or passive to active Passive Active Active Passive Switch...

Page 11: ...erter Active is connected to the current loop device using two twisted pairs The pairs must be dry unconditioned metallic wire 19 to 26 AWG Best distance is achieved with smaller gauges that is thicke...

Page 12: ...r between the DB25 connector and the lip of the plastic case see the diagram below You don t have to worry about breaking the plastic but be careful not to bend the D sub connector Once the unit has b...

Page 13: ...ed to XMT must be connected at the other end of the telephone line to RCV in the other unit 5 Connect the other pair of wires in the telephone cable to RCV Receive again being careful to observe the p...

Page 14: ...e the assembly so that it is about two inches 5 1 cm from the terminal posts and press together firmly If your cable diameter is too small or too large for our strain relief contact your supplier for...

Page 15: ...d of the case Snap that side of the case closed Repeat the process for the other side Cable installation is complete 4 1 2 TWISTED PAIR CONNECTION USING MODULAR JACKS The modular versions of the HS RS...

Page 16: ...to the RS 232 data port Remember to insert and tighten the two captive connector screwlocks The PWR light remains on as long as the power supply is connected and supplying power When the data is trans...

Page 17: ...16 HS RS 232 CURRENT LOOP CONVERTER ACTIVE Pin Signal 1 FG 2 TD 3 RD 4 5 6 8 20 7 GND 9 V Appendix A RS 232C Pin Connections...

Page 18: ...mplifier Data Detection LED Optocoupler T e r m i n a l B l o c k TX TX GND RX RX 9VDC Level Conversion Amplifier Data Detection LED Current Limiter 9VDC Constant Current Amplifier Current Source Refe...

Page 19: ...18 HS RS 232 CURRENT LOOP CONVERTER ACTIVE...

Page 20: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1996 Black Box Corporation All rights reserved...

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