If Connector Group; Rx Connectors; Tx Connectors; J10 | Tx Mon Connector, Type 'Sma - Comtech EF Data CDM-760 Installation And Operation Manual

Rear Panel Connections
CDM-760 Advanced High-Speed Trunking Modem

3.2.1 IF Connector Group

CAUTION
THERE MAY BE DC VOLTAGES PRESENT ON THE TYPE 'N' RX AND TX IF CONNECTORS,
UP TO A MAXIMUM OF 48 VOLTS.
3.2.1.1

Rx Connectors

Ref Des Name
J9 L-BAND RX IN
J11 IF RX IN
3.2.1.2

Tx Connectors

of DC voltage.
Ref Des Name
J12 L-BAND TX OUT Type 'N' female
J13 IF TX OUT
3.2.1.3

J10 | TX MON Connector, Type 'SMA'

Ref Des Name
J10 TX MON
The J9 | L-BAND RX IN Type 'N' connector features an LED labeled "LNB PWR
ON". When a Low-Noise Block Down Converter (LNB) is installed in an L-Band
configuration, the LED lights amber to indicate the presence of DC voltage.
Connector Type
Type 'N' female
BNC
The J12 | L-BAND TX OUT Type 'N' connector features an LED labeled "BUC
PWR ON". Reserved for FUTURE use: When a Block Up Converter (BUC) is
installed in an L-Band configuration, the LED glows amber to show the presence
Connector Type
BNC
The Type 'SMA' female J10 | TX MON connector provides a user monitor
output for the L-Band signal.
Connector Type
Type 'SMA' female
Description
Rx IF signal, L-Band
Rx IF signal, 70/140 MHz band
Note: 75Ω default, 50Ω optional
Description
Tx IF signal, L- band
Tx IF signal, 70/140 MHz band
Note: 75Ω default, 50Ω optional
Description
Monitor L-Band Tx IF Output
3–5
Revision 4
MN-CDM760
Direction (I/O)
I
Direction (I/O)
O
Direction (I/O)
O