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CDM-740 Advanced Satellite Modem
Introduction
1.3.6
Rear Panel
Figure 1-5 shows the rear panel of the modem. External cables are attached to connectors on the
rear panel of the CDM-740. For a detailed descriptions/pinouts of each connector, see Chapter 3.
REAR PANEL CONNECTOR PINOUTS.
Ref Des
L-BAND OUT
REDUNDANT
REMOTE
IF OUT
L-BAND MON
TERM
GE-1, GE-2
FE
ASI IN 1
ASI OUT 1
ASI IN 2
ASI OUT 2
L-BAND IN 1
L-BAND IN 2
EXT/INT REF
Note: The European EMC Directive (EN55022, EN50082-1) requires using properly shielded
cables for DATA I/O. These cables must be double-shielded from end-to-end, ensuring a
continuous ground shield.
1.3.7
Data Interfaces
The CDM-740 offers the following data interfaces:
•
(2) 10/100/1000 BaseT Gigabit Ethernet Interfaces (GE1, GE2);
•
A 10/100 BaseT Gigabit Ethernet Interface for management purposes (Web, SNMP, and
CLI [Command Line Interface]);
•
A EIA-232/485 interface for serial modem remote control.
1.3.8
Verification
The CDM-740 includes three test modes for rapid verification of the correct function of the unit.
When normal operation is again selected, all of the previous values are restored.
Figure 1-5. CDM-740 – Rear Panel View
Connector
Type
L-Band Transmit Output
Type 'N'
DB-9F
1:1 Redundancy Interface
Remote (Tx, Rx traffic alarms and unit faults)
DB-9M
BNC
IF Transmit Output
L-Band Monitor Output
Type 'F'
RJ-12
Terminal (EIA-232) Interface
RJ-45 (2X)
(2) 10/100/1000 BaseT Ethernet interfaces (IEEE 802.3ab)
RJ-45
10/100 BaseT Ethernet interface (IEEE 802.3u)
(2) ASI TX Outputs & (2) ASI RX Inputs
BNC (4X)
(Presently unavailable/unused)
L-Band Input 1
Type 'F' (2X)
Presently unavailable/unused
BNC
Reference: External Input / Internal Output
1–7
Description
Revision 0
MN-CDM740
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