Name Function - Comtech EF Data XPA-200 Installation And Operation Manual

XPA200-7984-I-OPT1, X-Band SSPA
5.3.2.2.1 RS-485 2-wire
The pinout for the 2-wire interface is provided below.
that each signal pair (+RX/TX and -RX/TX) is provided on two
pins. This is done to provide customers who are using 'solder-
cup' type DB-9 connector the ability to more easily daisy chain
the signals to multiple devices while maintaining one wire per
'solder-cup'.
connectors (Ribbon cable types) need only use three (3) signals.
PIN
1
4
5
8
9
5.3.2.2.2 RS-485 4-wire
The pinout for the 2-wire interface is provided below.
that all five (5) signals are required.
PIN
1
4
5
8
9
5.3.3 Cables
5.3.3.1 RS-232
The remote control port is configured with pin 2 as the
transmit data signal (TD) and pin 3 as the receive data signal.
This arrangement allows straight connection (pin 2 to pin 2 and
pin 3 to pin 3) between the SSPA and most standard serial ports
using any standard RS-232C cable (i.e. no need to swap pins 2 and
3).
XPA200-7984-I-OPT1, Rev.2
Customers who use 'IDC Mass Terminated' style DB-9

NAME FUNCTION

GND
+RX/TX
-RX/TX
+RX/TX
-RX/TX
NAME FUNCTION
GND
+TX
-TX
+RX
-RX
Ground
Signal Loop In
Signal Complement Loop In
Signal Loop Out
Signal Complement Loop Out
Ground
Transmit Signal
Transmit Signal Complement
Receive Signal
Receive Signal Complement
Remote Control
Note
Note
5-3