Comtech EF Data SMS-458B User Manual
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SMS-458B Modem Protection Switch
Revision 2
Introduction
MN/SMS458B.IOM
1–10
Table 1-1. SMS-458B Specification (Continued)
Indicators
Front panel LEDs:
•
Power supply on
• Auto
mode
• Local
mode
• Remote
mode
• Bypass
mode
• Battery
fault
•
Modulator system failure
•
Demodulator system failure
•
Controller and power supply fault
48 character display of:
•
Prime modulator status
•
Prime demodulator status
•
Backup demodulator status
•
Backup modulator status
•
Active modulators (prime and backup)
•
Active demodulators (prime and backup)
• Modem
address
• Modem
interface
• Modem
downlink
• Modem
priority
• Modem
delay
• Modem
configuration
• Fault
menus
Operation Modes
Auto
Local
Remote
Bypass
Controls
Complete control of all M:N functions from the
front panel or through the remote interface.
General
Input Voltage
90 to 264 VAC (-48 Vdc optional).
Line Power
160 W max. with both power supplies operating.
Line Frequency
47 to 63 Hz
Size
19 W x 22D x 12.20H inches
(48.2 6W x 55.88 D x 31H cm)
Weight
50 lbs (22.68 kg)