User Manual

Chapter 5 DataReader Installation and Operating Instructions
- 48 - Hi-G-Tek Ltd. Micro electro nic s & A sset Tra cking Techno logy
The indoor unit has three connector sockets at its base. Connector socket P1
is for incoming communications and power-in. Socket P3 is used to transfer
power and to connect the unit to the next unit in a daisy chain.
5.2.2 Wiring the Indoor DataReader
The DataReader may be connected to the network via three types of serial
communication:
1. RS-485 Full Duplex
2. RS-485 Half duplex.
3. RS-232.
Note
: RS-485 and RS-232 are different models.
According to the DataReader model in use, the serial connection can be
either RS232 or RS485 (see Technical Specifications). The RS485
connector is always optically isolated.