Comtech EF Data CDM-750 - Manual (Page 60)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Rear Panel Connections MN-CDM750
3–14
3.3 CDM-750 Ground and Power Connections
3.3.1 Chassis Ground Interface
PROPER GROUNDING PROTECTION IS REQUIRED. The equipment must be connected
to the protective earth connection at all times. It is therefore imperative that the unit
is properly grounded, using the ground stud provided on the unit rear panel, during
installation, configuration, and operation.
(Top) Standard AC Unit
(Bottom) Optional 48V DC Unit (FUTURE)
Figure 3-6. CDM-750 Chassis Ground Interface
Use the #10‐32 stud, located adjacent to the power interface, for connecting a
common chassis ground among equipment.
The AC power interface provides the safety ground.