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RS232 to RS232 Isolator 

Installation Guide 

 

 

1. Introduction 

Thank you for purchasing this RS232 (to RS232) Isolator and Surge 
Protector. It 

is designed for your PC, workstation, thin client, or 

server to provide an instant isolation solution for the RS232 serial 
devices. It 

provides a DB9 female connector (DCE, with standard 

RS232 signals, TXD, RXD, RTS, CTS, DTR, DSR, DCD and GND) that can be 
connected directly to your PC’s RS232 port. An external 5V DC power 
source should be applied to its input DC jack. The power source can 
be supplied by either an AC power adapter or an USB-to-DC-Jack 
conversion cable. 

Features: 

9

 

Provides one RS232 to RS232 Adaption 

9

 

Supports up to 2,500Vrms Isolation for all RS232 Signals 

9

 

Supports all RS232 Signals (TXD, RXD, RTS, CTS, DTR, DSR , DCD, and GND) 

9

 

Supports DB9 Female (DCE) to DB9 Male (DTE) Connector Conversion 

9

 

Supports Baud Rate up to 921.6 Kbps 

9

 

+5V DC External Power is Required, Powered by AC Adapter or USB Port 

with an USB-to-DC-Jack Cable 

9

 

Compact Size for Critical Applications 

9

 

No Driver Required for All Operating Systems 

 

 

 

2. Layout: RS232 Isolator and Surge Protector 

 

1

 

 

 

 

 

 

Rear Panel: 

Male DB9 Connector (DTE) 

Wall Mounting Kit 

DC Jack: 

5V DC Power Input Here 

Female DB9 Connector (DCE) 

Summary of Contents for RS232

Page 1: ...source can be supplied by either an AC power adapter or an USB to DC Jack conversion cable Features 9 Provides one RS232 to RS232 Adaption 9 Supports up to 2 500Vrms Isolation for all RS232 Signals 9 Supports all RS232 Signals TXD RXD RTS CTS DTR DSR DCD and GND 9 Supports DB9 Female DCE to DB9 Male DTE Connector Conversion 9 Supports Baud Rate up to 921 6 Kbps 9 5V DC External Power is Required P...

Page 2: ...nnector otherwise the unit won t work and the DC power was passed though the isolation circuits so the isolator will not function properly 1 Use static electricity discharge precautions Remove possible static discharge potential from any objects that the converter may come in contact with before installation This can be accomplished by touching a bare metal chassis rail after you have turned off t...

Page 3: ...emale Pin Assignment 9 Pins Signal 1 DCD 2 TXD 3 RXD 4 DTR 5 GND 6 DSR 7 CTS 8 RTS 9 NC 5 1 9 6 NC No connection DB9 Male Host PC to DB9 Female Isolator Wiring DB9M DTE Host PC DB9F DCE Isolator 1 DCD 1 DCD 2 RXD 2 TXD 3 TXD 3 RXD 4 DTR 4 DTR 5 GND 5 GND 6 DSR 6 DSR 7 RTS 7 CTS 8 CTS 8 RTS ...

Page 4: ... Assignment 1 5 6 9 9 Pins Signal 1 DCD 2 RXD 3 TXD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 NC NC No connection DB9 Male Isolator to DB9 Female RS232 Device Wiring DB9M DTE Isolator DB9F DCE RS232 Device 1 DCD 1 DCD 2 RXD 2 TXD 3 TXD 3 RXD 4 DTR 4 DTR 5 GND 5 GND 6 DSR 6 DSR 7 RTS 7 CTS 8 CTS 8 RTS 4 ...

Page 5: ...nectors Number of Ports RS232 Signals Baud Rate Power Requirement Operating Temperature Operating Humidity Storage Temperature DB9 Female DCE DB9 Male DTE 1 RS232 TXD RXD RTS CTS DTR DSR DCD GND Up to 921 6Kbps 5V 100mA max 0 to 60 C 32 to 1408F 5 to 95 RH 20 to 85 C 4 to 185 F ...

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