
UG-1037
ePAQ-9100
24
Installation
Copyright © 2017 QEI
interface equipment. This is the primary port used to connect to Master Stations,
therefore it is the primary server port.
Figure 6.5 shows the pin connections for the RS-232 Port 4.
Figure 6.5
– Port 4 Wiring
6.3.2
Port 5 (RS-485)
This port is included in all possible ePAQ configurations and is always RS-485
port. It is suitable for use to connect to intelligent field devices that support 2 wire
RS-485 communications.
Figure 6.6 shows the pin connections for the RS-485 Port 5.
Figure 6.6 -- Port 5 Wiring
6.3.3
Port 1 and Port 2 (202T or RS-232, optional)
Port 1 and 2 can be configured as either a 202T Modem or RS-232 connection.
Check the part number of the ePAQ to determine if it is equipped with either port.
The RS-232 connection type is suitable for use as a connection to radio or
external modem equipment or fiber optic interface transceivers. The 202T