Rs422 db25 female rta connector pinout – Perle Systems RIO 5500036-17 User Manual
Page 204
RIO Remote I/O System User Guide
RTA connector pinouts
Page 204
Chapter 3 RIO Cabling information
RS422 DB25 female RTA connector pinout
Note
The pinout for cables connected to the RTA8/RS422 variant depends on
the device being connected to. For further details refer to the
documentation supplied with the product to be connected to.
Pin
Signal
Direction
Description
1
CHASSIS
Chassis
2
RXD+
In
Receive Data
3
TXD+
Out
Transmit Data
4
RTS+
In
Receive Hardware Flow Control
5
CTS+
Out
Transmit Hardware Flow
Control
6
DCD+
In
Data Carrier Detect
7
GROUND
Connects to logic 0V
8
DTR+
Out
Data Terminal Ready
10
DTR-
Out
Inverse DTR
13
CTS-
Out
Inverse CTS
14
RXD-
In
Inverse RXD
16
TXD-
Out
Inverse TXD
18
DCD-
In
Inverse DCD
19
RTS-
In
Inverse RTS
20
DSR+
In
Data Set Ready
21
RI-
In
Inverse Ring Indicator
22
RI+
In
Ring Indicator
23
DSR-
In
Inverse DSR
Pin 1 (looking into connector)