Chassis Ground Interface; Table 4-6. Dc Input Filter Module Pinouts - Comtech EF Data MN/LBC4000.IOM Installation And Operation Manual

LBC-4000 L-Band Up/Down Converter System
Rear Panel Connectors
Note the following:
• The DC (Direct Current) Filter Input Module input voltage is -48VDC
nominal, -36VDC minimum, -72VDC maximum.
• Power Module Manufacturer: TE Connectivity P/N 6DAF1 (Comtech EF
Data P/N 506-0015-002).
• Mating Connector (by User): Molex 03-12-1036.
Pin # Signal Name
A Negative
B Ground
C Positive
4.2.2.4 Optional DC Operation – Connecting Prime Power
WARNING!
DISCONNECT THE DC POWER SUPPLY BEFORE PROCEEDING!
To apply DC power to the LBC-4000, do these steps:
1. Plug the user-supplied DC power harness connector into the DC Input
Filter Module. Number 18 AWG minimum wires are recommended.
2. Connect the user-supplied DC power harness leads to the user-supplied
DC Power source.
3. Switch the unit ON if so equipped (see Sect. 4.2.2.6). Otherwise, the unit
energizes upon connection to the DC power source.

4.2.2.5 Chassis Ground Interface

CAUTION
PROPER GROUNDING PROTECTION IS REQUIRED. You must connect the
equipment to the protective earth connection at all times. Use this ground
stud during installation, configuration, and operation.
The AC power interface provides the safety ground.

Table 4-6. DC Input Filter Module Pinouts

Wire Colors
Black
Green/Yellow
Red
4–11
MN/LBC4000.IOM
Revision 5
Wiring Options
-48 VDC 0 VDC
Earth Ground Earth Ground
0 VDC +48 VDC