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External connection, Chapter 3. external connections, 1 external connections – Comtech EF Data SDM-2020 User Manual

Page 41

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3–1

Chapter 3. EXTERNAL

CONNECTIONS

This chapter a description of external connections.

3.1 External

Connections

The connectors for the main unit are shown in figure 3-1 or Figure 3-2 and Rear Panel RF
Input Connectors (Table 3-1).

Table 3-1. Rear Panel Connectors

Name

Ref. Desig.

Type

Function

Remote

J1

9-pin D, Female

Remote control (M&C)

Fault

J2

9-pin D, Female

Relay Faults

Monitor

J21

9 pin D, Female

Performance Monitor

IF Input (Single-Channel)
(see Note 1)

J23

Type F, Female

RX IF input, LNB power out.

IF Input (4 Input)
(see Note 2)

J23, J24,

J25, J26

Type F, Female

RX IF Input LNB power out

Prime Power

None

Standard

AC Power Input

GND

None

#10-32 Stud

Chassis Ground

Data Interface Connectors

See Applicable Chapter

Notes:

1. Single RX IF input is for earlier L-Band units and all 70/140 MHz demodulators. LNB

power is available only for L-Band.

2. The 4-channel input IF is only available for L-Band.