Comtech EF Data CDM-740 - Manual (Page 31)

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 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
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.