Comtech EF Data HPOD, Installation And Operation Manual

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HPOD C-, X-, Ku-Band High-Power Outdoor Amplifier
Revision 9
Appendix B B–11 MN/HPOD.IOM
B.4.2 Operation
Task Procedure
1 Set both units to “Auto” redundancy mode by sending them RAM=1 command.
2
Establish the current online status by sending each unit an ONL? query. Note one unit should
return ONL=1 (online), and one unit should return ONL=0 (offline)
3 Fail the unit that reported ONL=1. The switch should throw. Restore the unit
4
Repeat the ONL? query to both units. The unit that was failed in step 2 should now report
ONL=0 and the other should report ONL=1. Fail this unit and confirm the switch transitions.
5 Put the system in “Manual” mode by sending RAM=0 commands to both units.
6 The “SSW” command will force the switch to point to the selected unit. For example, an
“SSW=1” command will force the switch to point to SSPA 1 no matter which SSPA the
command was issued to. Ensure either unit can throw the switch in both directions by sending
the following commands:

<1/SSW=1 (the switch may or may not transition)

<1/SSW=2 (the switch should transition)

<1/SSW=1 (the switch should transition)

<2/SSW=2 (the switch should transition)

<2/SSW=1 (the switch should transition)