Aux 1 (J9) - Comtech EF Data SDM-9000 Installation And Operation Manual

Installation

2.4.9 AUX 1 (J9)

The Auxiliary 1 (AUX 1) connector provides:
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•
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The faults are open collector levels to indicate a modulator or demodulator failure. A
logic 1 indicates the faulted condition. The signals are primarily used in operating a
protection switch.
The external high stability reference clock input is 5, 10, or 20 MHz.
AGC-OUT is the voltage for a receive signal level between -25 and -50 dBm.
The AUX 1 connection is a 9-pin female D connector located on the rear panel of the
modem. Screw locks are provided for mechanical security on the mating connector.
Ground
External reference
Transmit fault
Receive fault
AGC output
(Receive input, IF level)
2–14
TTL faults
External high stability reference
AGC output voltage
Signal Function
GND
EXT–REF
MDTTLFLT
DMTTLFLT
AGC–OUT
Name Pin #
5, 6, 8
2
4
7
1
SDM-9000 Satellite Modem
Rev. 4