Comtech EF Data CRS-400 - Manual (Page 17)

1
Chapter 1. Introduction
CRS-400
1:8 Redundancy
Switch
Optional CRS-280
IF Switch
1.1 D ESCRIPTION
The Comtech EF Data CRS-400 1:8 Redundancy Switch is designed for use with the
Comtech EF Data SDM-2020 modulator and demodulator to provide fully automatic
protection of traffic circuits in case of equipment failure. It is intended for hub and other
redundancy applications and currently supports the HSSI interface type.
Connection to the traffic modulators/demodulators and the redundant
modulator/demodulator is simple – a Data cable, which carries all data signals and alarm
information, a 485 cable for remote control interfaces, and, in some cases, a fault cable.
This simplifies rack cabling, and reduces the number of potential failure points.
CAUTION
The Comtech EF Data CRS-400 switch is designed specifically as an accessory
product for the Comtech EF Data SDM-2020 modulator and demodulator and is
not designed to operate with any other manufacturer’s equipment.