Comtech EF Data SDM-9000, Installation And Operation Manual

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SDM-9000 Satellite Modem Installation
Rev. 4 2–5
2.4 External Connectors
When a breakout panel is not required, the external modem connections between the
modem and other equipment are made through several rear panel connectors. These
connectors are shown in Figure 2-2, and their locations are listed in Table 2-1. The
connectors are described in the following paragraphs.
When a B141-1 breakout panel is required, refer to the B141-1 Breakout Panel
Installation and Operation Manual for connector information.
Figure 2-2. SDM-9000 Rear Panel View
Note:
In order to meet the European EMC Directive (EN55022, EN50082 - 1), properly
shielded cables for DATA I/O are required. These cables must be double - shielded from
end to end, ensuring a continuous ground shield.
Table 2-1. Modem Rear Panel Connectors
Name Ref.
Desig.
Connector
Type
Function
TX/IF OUTPUT CP1 BNC RF output
RX/IF INPUT CP2 BNC RF input
RECEIVE DATA CP3 BNC RX terrestrial data input
SEND DATA CP4 BNC TX terrestrial data input
EXT CLK CP5 BNC External clock input
REMOTE J6 9-pin D Remote interface
FAULTS J7 9-pin D Form C fault relay contacts
DATA I/O J8 50-pin D Data I/O (ESC)
AUX1 J9 9-pin D TTL faults
External reference
AGC output
ALARMS J10 9-pin D Form C alarm relay contacts