2582-122 Backup Switch, 1 for 2, with Backup Controller (IF to L-Band)

The 2582-122 is a 1 for 2 Switch with Backup Controller for downloading and storing user variable data settings from the active, on-line agile, IF to RF frequency (to 2.2 GHz) converters and controlling the back-up frequency converter. The 2582-122 provides Auto or Manual backup protection for up to 2 up or down converters by relay switching of IF and RF from a backup unit to any of 2 on-line units. The controller in the 2582-122 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 2582-122 works with standard Cross L-band up and downconverters by polling their monitor and control ports on a periodic basis. A defective unit’s inputs and outputs are switched from the failed unit to the backup when a failure occurs either automatically or manually. “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 2582-122 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 2582-122 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.