22
P21/P22/P23 Protected Network Station
05-4161A01, Rev. C
Invisible place holder
Figure 19. Radio Select Switch
Invisible place holder
3. If desired, you may observe the transceiver LED status panel(s) for
the proper indications by removing the unit’s top cover plate. Refer
to the transceiver’s manual for an explanation of LED functions.
4. After the basic operation of the Protected Network Station has been
checked, you may wish to optimize transceiver performance using
some of the suggestions in the transceiver’s manual.
Table 2. Radio Selection Switch Positions
Switch
Position
Function
A
Transceiver A is selected as the active unit. Switchover will
not
occur if a failure occurs in Transceiver A or if the Remote
Switchover is invoked.
AUTO
(Normal/Default)
The most recently selected transceiver is active. If a failure
occurs with that unit, switchover automatically occurs to the
other transceiver.
Also, when the switch is in this position, the Remote Switchover
command can be invoked.
B
Transceiver B is selected as the active unit. Switchover will
not
occur if a failure occurs in Transceiver B or if the Remote
Switchover command is invoked.
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