Comtech EF Data CDM-840 - Manual (Page 45)

CDM-840 Remote Router Revision 2
Rear Panel Connections MN-CDM840
3–5
3.2 CDM-840 Cabling Connections
Figure 3-3. CDM-840 Cabling Connections
The CDM-840 rear panel connectors, shown here in Figure 3-3 provide all necessary external
connections between the unit and other equipment. The table that follows summarizes the
connectors provided here, grouped according to service function.
Sect. Service Type Connector Name Connector Type Connector Function
3.2.1 IF Group
L-BAND Rx 50Ω Type ‘N’ female L-Band Input
L-BAND Tx 50Ω Type ‘N’ female L-Band Output
3.2.2 Terrestrial
Data Group
G.703
OUT BNC female G.703 E1 Input
IN BNC female G.703 E1 Output
TRAFFIC | GE RJ-45 female
10/100/1000 BaseT Gigabit
Ethernet interface (IEEE 802.3ab)
3.2.3 Utility Group
MANAGEMENT | FE RJ-45 female
10/100 BaseT Fast Ethernet
management/data interface (IEEE
802.3u)
REDUNDANCY 9-pin Type ‘D’ female
For connection to an optional 1:1
or 1”N CEFD Redundancy Switch
CONSOLE 9-pin Type ‘D’ male Serial Remote Interface (EIA-232)
ALARMS 15-pin Type ‘D’ male Unit Alarms
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.
See Sect. 3.1 Cabling Connections Types for information about each connector type
and its connection instructions.
(Top) Standard AC Unit
(Bottom) Optional 48V DC Unit