Comtech EF Data XPA-200 - Manual (Page 31)

XPA200-7984-I-OPT1, X-Band SSPA Installation
XPA200-7984-I-OPT1, Rev.2 2-3
2.2.3 Some Notes on Establishing Remote Communications
1. The Mitec 2723B combiner was set at the Comtech factory to
RS-232 operation per customer request, on address 00 (30H)
through P4. However, the Mitec 2723B has a non-standard pin-
out on this I/O connector. Connections should be made as
shown below:
Common PC 9-Pin Serial Port
Mitec 2723B Remote Serial Access
Port, P4 (9-pin)
Pin 2 (Rd) Pin 3
Pin 3 (Td) Pin 4
Pin 5 (Gnd) Pin 5
Table 2.1 Typical RS-232 Connection to Mitec P4
2. Physical remote cabling information for each Comtech SSPA
is described in section 5.3 of this manual. It is recommended to
set SSPA A to address 001 and SSPA B to address 002. These and
other communication parameters can be set via the front panel of
each SSPA, as described in section 3 and section 5.
3. A special Windows-compatible program has been included on
a floppy disk in this manual to assist in communicating with the
Combined/Redundant Amplifier system. Refer to the file “Notes.txt”
for operating instructions.