Overview
The 2582-142 provides Auto or Manual backup protection for up to 4 up or down converters by relay switching of IF and RF from a backup unit to any of 4 on-line units. The controller in the 2582-142 monitors alarms and settings of the on-line units and sets the backup unit to the parameters of the unit being backed up prior to backing it up. The 2582-142 works with standard Cross L-band up and downconverters by polling their monitor and control ports on a periodic basis. Remote M&C polling of units can be done at anytime. A defective unitʼs inputs and outputs are switched from the failed unit to the backup when a failure occurs either automatically, manually or remotely. Individual priority levels and “on-line”, “off-line” and “not used” modes can be programmed for each on-line converter. Alarms are contact closures to ground. Status of the 2582-142 is via a serial data stream and a contact closure to ground on alarm.
All settings are stored in nonvolatile ROM and on power up the 2582-142 polls all units. Manual Select is controlled by the multi-function switches on the front panel. LEDs indicate alarm and switch conditions. The unit is powered by redundant power supplies, and mounted in a 1RU rack-mount chassis.
Details
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