Electrical Interface; Interface Connector - Comtech EF Data KPA080 Installation And Operation Manual

Remote Control
5.2

Electrical Interface

The remote control interface supports either EIA-485 (2-wire), EIA-485 (4-wire ) or
EIA-232. The default port is EIA-485 (2-wire). Selection of the interface type is made
via front panel menu selection. The three interface types are impletemented alternately
through the same 9-pin connector.
EIA-232
EIA-485
5.3

Interface Connector

All three interface types (2-wire EIA-485, 4-wire EIA-485 and EIA-232C) are
implemented alternately through the same 9-pin connector. The remote control port is a
female DB-9 connector located on the rear of the SSPA.
5-2
Levels, pulse shapes and impedances conform to EIA standards for asynchronous operation.
Levels, pulse shapes and impedances conform to EIA standards.
Pin Name
2 TD
3 RD
5 GND
6 DSR
7 RTS
8 CTS
EIA-485 (2-Wire)
Pin Name
1 GND
4 +RX/TX
5 -RX/TX
8 +RX/TX
9 -RX/TX
EIA-485 (4-Wire)
Pin Name
1 GND
4 +TX
5 -TX
8 +RX
9 -RX
KPA080 Ku-Band Solid-State Power Amplifier
EIA-232
Function
SSPA Transmit Data
SSPA Receive Data
Ground
Unit Ready. Always high.
Request to Send (Looped to CTS)
Clear to Send
Function
Ground
Signal Loop In
Signal Complement Loop In
Signal Loop Out
Signal Complement Loop Out
Function
Ground
Transmit Signal
Transmit Signal Complement
Receive Signal
Receive Signal Complement
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