Detex DTX-4300 User Manual

Page 49

3.2 prox.pad plus
Communications

The prox.pad plus is equipped with RS-485 communi-
cations with a data rate of 19200 bits/sec. This allows
you to connect the unit to a personal computer (PC)
either via the computer’s COM (serial) port or over a
computer network to manage the system using Hub
Manager Professional (version 5 or higher) software.
To connect the prox.pad plus unit to a computer COM
port (which is RS-232), an RS-232 to RS-485 converter
is required. To connect the prox.pad plus unit via a
computer network, the IEI Gateway device is required.
The maximum distance from the RS-485 device is
4,000 feet using the specified cable

. NOTE: The Ter-

minator wire may not be required. Figures 3-8 and 3-9
show examples of both connection types. Please see
the instructions for your RS-232 to RS-485 converter
or the instructions for the IEI Gateway for details about
those devices. For details, refer to EIA RS-485 specifi-
cations.

RS-232

RS-485

RS-232 to RS-485
Converter

To PC
COM port

2-Brown (Data A)

3-White (Data B)
4-Green (Data GND)

NOTE: The Terminator wire
may not be required.

Figure 3-8 Connecting the prox.pad plus
to a PC COM Port

3.2 prox.pad plus Communications

Chapter 3: Wiring

prox.pad plus Install/Program. Manual, PPP, D4b

3-13

Part No. 6105679, Rev. 1.1