If Connections; Rx If Connectors; Tx If Connectors; Terrestrial Data Connections - Comtech EF Data CDM-740 Installation And Operation Manual

CDM-740 Advanced Satellite Modem
Rear Panel Connector Pinouts
3.2

IF Connections

There may be DC voltages present on the Type 'N' Rx and Tx IF connectors, up
to a maximum of 48 volts.
CA UTIO N
3.2.1

Rx IF Connectors

3.2.2

Tx IF Connectors

3.3

Terrestrial Data Connections

3.3.1

GE-1 and GE-2 Ethernet Connectors, RJ-45

3.3.2

FE (Fast Ethernet) Connector, RJ-45

This is a standard RJ-45 female modular jack, operating at 10/100 Mbps, half and full
duplex, auto-negotiating.
Note: The maximum Ethernet packet size is 1522 bytes (including Ethernet headers
and CRC).
Ref Des
L-BAND IN 1
L-BAND IN 2
Ref Des
L-BAND OUT
IF OUT
L-BAND MON
These are two standard RJ-45 female modular jacks, operating at 10/100/1000
Mbps, half and full duplex, auto-negotiating.
Note: The maximum Ethernet packet size is 1522 bytes (including Ethernet
headers and CRC).
3–3
Connector
Description
Type
Type 'F' Rx IF signal, L- Band
Type 'N' (UNUSED)
Connector
Description
Type
Type 'N' Tx IF signal, L- Band
Tx IF signal,
BNC
70/140 MHz band
L-Band Monitor of
Type 'F'
70/140 or L-Band
Revision 0
MN-CDM740
Direction
In
(UNUSED)
Direction
Out