Serial-Based Monitor And Control - Comtech EF Data LPOD Series Installation And Operation Manual

A.2.2 Serial-based Monitor and Control
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The EIA-232 Interface is not available for 1:1 Redundancy.
Serial-based remote M&C of any LPOD Standalone or 1:1 Redundancy application is available
through use of the optional CLC-10 Handheld Terminal M&C Accessory Kit (CEFD Kit KT-
0020518). This kit provides you with on-site access to the LPOD's serial remote-control interface.
For detailed information about this optional accessory, see the CLC-10 Comtech LPOD
Controller User's Guide (CEFD P/N MN-CLC10).
Serial command ESW determines system operation. Currently, 1:1 redundancy is supported with
either transmit switching (Tx only) or transmit+receive switching (Tx+Rx). If ESW=1 (Tx Only) or
ESW=2 (Tx+Rx) is executed in both units, the system will be in Automatic Redundancy mode. In
this mode, if a fault is detected with the active (online) unit – either by loss of communications
between the backup (offline) and active units, or via the summary fault – the backup unit will
trigger the waveguide switch and, assuming the backup unit is not faulted, will become the active
unit. The backup unit will also poll the active unit at regular intervals in an attempt to maintain
configuration compatibility with the active unit; this ensures that, should a fault occur, the backup
unit is configured exactly the same as the active unit.
Appendix A
Low Power Outdoor (LPOD) Amplifier/Block Up Converter (BUC)
Chapter 5. SERIAL INTERFACE OPERATION
Chapter 4. ETHERNET INTERFACE OPERATION
CLC-10 Comtech LPOD Controller User's Guide (CEFD P/N MN-CLC10)
Figure A-2. Serial-based M&C using CEFD Kit KT-0020518
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Revision 15
MN-LPOD