User Manual

Table Of Contents

Chapter 5 DataReader Installation and Operating Instructions

- 56 - Hi-G-Tek Ltd. Micro electro nic s & A sset Tra cking Techno logy

5.4.2 Connecting the RS-232/RS-485 Adapter to the

Controlling Computer

RS-232 3-wire connection should be performed between the Adapter and

the controlling computer. (Other control signals beside the Rx, Tx and

GND are not required).

Rx and Tx should be crossed as follows:

The Moxa A51 is connected to the controlling computer with RJ45/DB25

cable supplied with the adapter. If the controlling computer has a DB9

connector, a DB25/DB9 adapter should be used.

5.5 Power Supply Requirements

5.5.1 General

The DataReader supply voltage is chosen according to the model, either

12v, 24v or 48v (see the specificat ions of the different models in chapt er

10.

Power supply wattage: each DataReader consumes maximum 1.7W, so the

power should tolerate the number of DataReaders in the chain multiplied by

each DataReader’s power consumption.

Contr. Computer

GND

Adapter

GND