Comtech-ef-data CDM-740 User Manual Page 31

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CDM-740 Advanced Satellite Modem Revision 0
Introduction MN-CDM740
1–7
1.3.6 Rear Panel
Figure 1-5. CDM-740 – Rear Panel View
Figure 1-5 s
hows 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
Connector
Type
Description
L-BAND OUT Type ‘N’
L-Band Transmit Output
REDUNDANT DB-9F
1:1 Redundancy Interface
REMOTE DB-9M
Remote (Tx, Rx traffic alarms and unit faults)
IF OUT BNC
IF Transmit Output
L-BAND MON Type ‘F’
L-Band Monitor Output
TERM RJ-12
Terminal (EIA-232) Interface
GE-1, GE-2 RJ-45 (2X)
(2) 10/100/1000 BaseT Ethernet interfaces (IEEE 802.3ab)
FE RJ-45
10/100 BaseT Ethernet interface (IEEE 802.3u)
ASI IN 1
BNC (4X)
(2) ASI TX Outputs & (2) ASI RX Inputs
(Presently unavailable/unused)
ASI OUT 1
ASI IN 2
ASI OUT 2
L-BAND IN 1
Type ‘F’ (2X)
L-Band Input 1
L-BAND IN 2
Presently unavailable/unused
EXT/INT REF BNC
Reference: External Input / Internal Output
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.
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