7
Replacement Parts
7-1
SCM4000
Technical Reference Manual
Replacement Parts
7.1
Chapter Overview
This chapter describes replacement parts available for the
SCM4000 Single Carrier Modem.
Since there are no supported field repairs on the SCM4000,
the only parts available are external cables and power fuses.
7.2
External Cables
The external cables for the SCM4000 are listed in
you need something that is not listed, ask your Sales
Representative or consult the factory.
7.3
Power Fuses
The SCM4000 configurations operate on the following optional
AC and DC power sources:
•
120/240 VAC, 50/60 Hz
•
+24 to +48 VDC
Table 7-1: SCM4000 System Cables
Description
Comments
AC Power Cable
Connects AC power to the SCM4000.
Audio Connector
Connector only - Mates with
SCM4000
AUDIO A
and
AUDIO B
connectors.
Null Modem Cable
Connects SCM4000
RS-232
front
panel connector to PC RS-232
connector.
•
-24 to -48 VDC
Power fuses for the optional AC and DC configurations of the
SCM4000 are located on the rear panel Power Switch
Assemblies, as shown in
and
Figure 7-1: Power Fuse Location - AC Power Option
Figure 7-2: Power Fuse Location = DC Power Option
Fuse ratings for the optional AC and DC power sources are
shown in
.
Table 7-2: Fuse Ratings
Operating Voltage
Fuse Rating
240 VAC, 50/60 Hz
1.0A, 250V AGC, Fast Blow
120 VAC, 50/60 Hz
2.0A, 250V AGC, Fast Blow
POWER IN
IF IN
Fuse (Located Under
Safety Cover)
Power
Switch
POWER IN
FUSE
Power
Switch
Fuse
Содержание SCM4000
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