WMRSCM Work Microwave Modular Redundancy Switch N:1
- User Interface: LCD (VFD as option), 2 x 40 characters, 4 cursor keys, 2 function keys, Status LED’s
- Summary Alarm Interface: Controller alarm out, two potential free contacts (DPDT, connector DSUB09 female)
- Interface to Indoor Redundancy Sets: Main unit alarm and IF/RF-relay-control (8x connector DSUB15 female)
- Interface to Indoor Spare Unit: Alarm (connector DSUB15 female)
- Communication Interface to Indoor Units: RS485 (connector DSUB09 male)
- Insertion loss compensation: For each channel attenuation and equalization 1) offsets can be set to compensate for influences of cable and relay differences in case of a replacement.
- Switching: Manual or Automatic
- Delay from unit alarm occurrence until IF/RF relay switching: Typical 100 ms, max. 400 ms (depending on connected spare unit)
The WORK Microwave Redundancy Switch System N:1 can be configured for redundancy configurations with a maximum of eight main units and one spare unit. The redundancy system can be used for Upconverters and Downconverters.
The core of the solution is based on a highly flexible control unit. The required coaxial transfer switches, and waveguide transfer switches are mounted on separate panels or within an outdoor housing. When used in a rack mount installation, redundant switching panels can be added to the system in a modular way if the number of required channels increases over time.
The system can be configured from the front panel of the controller or remotely via RS232, RS422/485, or TCP/IP over Ethernet.
The switching system can be set in automatic mode, whereby an automatic switchover to the spare unit is performed upon detection of an alarm generated by the main unit. In addition, a manual switchover to the spare unit and back can be initiated.
Two power supplies and two AC input connectors within the controller unit guarantee high availability. The Redundancy Switch System is also available with integrated uplink power control (Option UPC).
