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Introduction
1.3
Specifications
Refer to Table 1-5 for operating specifications of the switch.
Number of Service Channels
Number of Backups
Switching Modes
Backup Modes
Modem Priority
Configuration Control:
Remote (programmable):
Type
Rate
Local
Control:
Front Panel
Remote
Front Panel LEDs:
Switch Status
Switch Fault
Modem Fault
Monitors:
Modulator Online Status
Demodulator Online Status
Switch Faults
1–12
Table 1-5. SMS-7000 Specifications
Operation
Modular from 1 to 8. Field upgradeable; one data switch
module per channel.
1 or 2.
Auto or Manual.
Dependent.
Independent (transmit/receive).
Programmable: high, medium, or low.
EIA-485/232 with provisions for future support of standard
network interfaces.
110 to 19200 baud.
Menu-driven from the switch front panel, for both the switch
and the modems.
I/O Interfaces
Back-lit LCD display and keypad.
9-pin female D.
Power On.
Auto.
Manual.
System.
Equipment.
Stored.
Transmit.
Receive.
FORM-C relay outputs, 25-pin female D.
FORM-C relay outputs, 25-pin female D.
FORM-C relay outputs, 9-pin female D.
SMS-7000 Modem Protection Switch
Rev. 3
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