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Built-In Data Connection and Configuration
There are two port interfaces on the 9131DT and 9131DR, the "DATA" port and the "RS485" port.
The "DATA" port supports two data channels, one a full-time RS232 channel and the other a configurable data
channel that is dipswitch programmable for RS422, RS485 2- or 4-wire, or Manchester operation. Both
channels are implemented via the RJ45 connector marked "data" . The RS232 channel is a dedicated channel.
There are no dipswitch settings associated with or required for operation of this channel. The configurable
channel must be programmed by setting dipswitch S1 on the board for proper operation. Refer to Table 1 for
switch settings and to Table 2 and Figures 4, 5, 6, and 7 for connection and pinout information. Refer to the
section on termination to determine when the terminations should be enabled (ON) and when it should be
disabled (OFF).
Port
DATA Port
(RJ45)
RS485 Port
(RJ12)
TABLE 1 — SWITCH SETTINGS
Data Type
Termination
RS422
Terminated
Unterminated
RS485
Terminated
4-Wire
Unterminated
RS485
Terminated
2-Wire
Unterminated
Manchester
RS485
Terminated
2-Wire
Unterminated
Dipswitch
1
2
3
4
5
On
On
On
Off
On
On
On
On
On
Off
On
On
On
On
On
Off
On
On
On
Off
Off
On
On
Off
Off
5
6
7
8
9
10
On
On
Off
Off
Off
Off
Off
Off
Off
Off
On
On
Off
On
Off
Off
Off
Off
On
Off
On
On
Off
On
On
Off
Off
Off
On
On
On
On
On
Off
Off
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