11 summary of specifications – Comtech EF Data CRS-200 REDUNDANCY SWITCH User Manual

Page 43

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CRS-200

COMTECH COMMUNICATIONS CORPORATION

CRS-200 REDUNDANCY SWITCH - OPERATIONS MANUAL PAGE 41

11 SUMMARY OF SPECIFICATIONS

Type

1:N protection system, N=10 maximum, bridging architecture, C161

control processor

Operating

Automatic switch to redundant modem (RM) based on modem alarms

Modes

Manual switch to RM

Manual parallel (bridging) of RM to any one of N traffic modems (TM)

Remove selected TMs from switch control

Programmable holdoff times for automatic switching (2-99 seconds)

Redundant

Any one of N traffic paths, both Transmit terrestrial data and Receive IF

Modem Signal

(Parallel operation, or bridging)

Source

IF Switching

Passive splitting and combining using carrier muting of offline modem

in a single up/downconverter system. Operation with CRS-280

Transponder Switch required for multiple up/downconverter system.

Switching Time Manual = 1 second if bridging selected TM, 6 seconds if not

Auto = 2 second if bridging selected TM, 7 seconds if not

Modem

25-pin ‘D’ type male, requiring male-female pin-to-pin cable with all

Interface

25 pins connected. All traffic, modem alarms and remote link with

switch are included on this interface.

Terrestrial Data

RS-422/EIA-530, V.35 or RS-232 synchronous DCE

Interfaces

RS-232 asynchronous DCE

X.21 synchronous DCE or DTE
(NOTE: Modem interface types connected to one switch may be
mixed)

Front Panel

Vacuum Fluorescent Display (2 lines, 24 characters each)

Tactile Keypad (6 keys)

Switch Status LEDs (Unit Fault, Remote ON/OFF, Stored Events)

Modem Status LEDs (Unit, Tx & Rx Faults, Bridged Status, Online)

Audible Alarm

2 tone buzzer, programmable to react to modem or switch faults

Power Supply

2 independent supplies

100-250 volts AC (+/- 10%)

Fused IEC connectors, 25 watts max total

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