Specifications

3. Connectors

3.1. Antenna

The radio modem is fitted with two SMA type connectors for connecting an antenna. The connector

labelled Rx is for the receiver, and Tx for the transmitter (up to 25 W). Use the corresponding type of

connector with matched impedance as the mate. We recommend an RG158 cable for the serial lead.

Important

The radio modem cannot be connected to the power supply without the antenna connected

(or corresponding artificial load). Otherwise this could lead to damage to the radio part of

the modem.

3.2. Serial Interface

The router can be equipped with serial ports RS232 or RS422/485, the ports can be optical isolated.

According to the configuration it is possible to use a terminal block or DSUB 9 (Canon) connectors for

connecting data cables via the serial interface. See Chapter Dimensional Diagram and Labeling. Data

rate on the serial interface can be from 200 bps to 230,400 bps.

3.2.1. RS232, RS422 and RS485 Connectors

a) Table of data connector RS232 connections

Fig. 3.1: RS232 DSUB9 female

Tab. 3.1: Table of data connector RS232 connections

DSUB9F

Screw

terminals

RS232

signal

81CTS

72RTS

23RxD

34TxD

55GND

4DTR

6DSR

1CD

9RI

Connectors