Quatech ETR-RS232 User Manual

RS232 

EXTENDER 

(Local) 

(Remote) 

U

SER

 M

ANUAL          

V1.5

Package Contents- 

RS232 Extender Local Unit 

RS232 Extender Remote Unit 

1 user manual 

2 power adapter DC 9V/300mA 

1 20cm Null Modem cable (DB-9 Male to Male) 

Any thing missed, please contact with your vendor. 

Features 

  Compatible with all RS-232 protocols. 

  Full-duplex data communication. 

  Sends RS-232 data at 230 kbps up to 1000M / 3300 ft. 

  Pure hardware solution - real time data transfer, no 

software conflicts. 

  No external power required. 

  Transfer data or files between PCs, equipments. 

  One CAT-5 cable extension. 

Specifications 

Function RS232-L

+

 RS232-R

+

RS232 Connector 

DB-9 Female x1 

RJ-45 Connector 

1 

Cable Distance (Max.) 

1000M / 3300ft (UTP) 

Communication mode 

Full-duplex data 

Power Supply 

DC9V/300mA (Min.) spare

Housing Metal 

Weight 65 

g 

Dimensions (LxWxH) mm

92x34x22 

FRONT VIEW 

1. RS232 (DB-9 Female Connector) 

REAR VIEW 

1. Power jack 

2. CAT.5 (RJ-45 Connector) 

Technical Specifications 

Supported RS232 DCE Signals: 

PIN1 N/A 

PIN2 Transmit 

Data 

PIN3 Received 

Data 

PIN4 N/A 

PIN5 Signal 

Ground 

PIN6 N/A 

PIN7 Clear 

To 

Send 

PIN8 Request 

To 

Send 

PIN9 N/A 

Null modem with full handshaking:

Wiring Information & Coding: 

Conductor 

Identification 

RJ45 Pin 

Assignment 

Color Code for 

Conductor 

5 White-Blue 

Pair 1 

4 Blue 

1 White-Orange 

Pair 2 

2 Orange 

3 White-Green 

Pair 3 

6 Green 

7 White-Brown 

Pair 4 

8 Brown 

Trouble shooting 

Q:

When RS232-E

+

 does not work smoothly. 

A1: Use power adapter of DC9V 300mA. 

A2: Check the two Baud Rate setting of two ends, they 

have to accord. 

A3: Refer above sheet and check if it connect RJ45 pair are 

correct.