Auxiliary 1 connector and pinouts (j9), Table 16. aux 1 c, Onnector and – Comtech EF Data CDM-IP 300L User Manual
Page 70: Inouts
CDM-IP 300L IP-Centric Satellite Modem
Rev. 1
CD/CDMIP300L.IOM
43
2.3.6 A
UXILIARY
1 C
ONNECTOR AND
P
INOUTS
(J9)
The auxiliary 1 (AUX 1) connector provides:
MOD and DEMOD (TTL) faults
Satellite Clock
Satellite I & Q
Automatic Gain Control (AGC) output voltage
The faults are open collector levels that indicate a modulator or demodulator failure. A
logic “1” indicates the faulted condition.
AGC_OUT is a programmable voltage, 0 to 10 V, for a receive signal level between
-25 and -60 dBm.
AUX 1 connection is a 9-pin female D connector (J9) located on the rear panel of the
modem. Screw locks are provided for mechanical security on the mating connector.
Table 16. AUX 1 C
ONNECTOR AND
P
INOUTS
(J9)
Pin # Signal Function
Name
1
Satellite Clock -
SAT_CLK-
2
External TX Enable
EXT_TX_EN
3
Satellite Clock +
SAT_CLK+
4
MODULATOR TTL Fault
MDFLTTTL
5 Ground
GRN
6
RX_Q
RX Q Channel Eye
7
DEMODULATOR TTL Fault
DMDFLTTL
8
RX 1 Channel Eye
RX_1
9
AGC Output
AGC