Chassis Ground Interface; Chassis Power Interfaces; Ac Prime Power Connector; Dc Filter Input Module - Comtech EF Data LBC-4000 Installation And Operation Manual

LBC-4000 L-Band Up/Down Converter System
Rear Panel 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.
The AC power interface provides the safety ground.
Use the #10‐32 stud, located adjacent to the power interface, for connecting a
common chassis ground among equipment.
3.3.2

Chassis Power Interfaces

3.3.2.1

AC Prime Power Connector

3.3.2.2

DC Filter Input Module

Pin #
A
B
C
A detachable power cord, provided with the LBC‐4000, mates with the AC
(Alternating Current) Prime Power receptacle for connection to 90 to 125
VAC, or 205 to 240 VAC power sources.
The DC (Direct Current) Filter Input Module input voltage is 48VDC
nominal, ‐36 VDC minimum, ‐72VDC maximum. Table 3‐6 lists the pinouts
for this interface.

Table 3-6. DC Input Filter Module Pinouts

Signal Name
Negative
Ground Green/Yellow
Positive
Wire Colors
Black
Earth Ground
Red
3–10
MN/LBC4000.IOM
Wiring Options
-48 VDC 0 VDC
Earth Ground
0 VDC +48 VDC
Revision 4