Main/Standby Operation (1:1) R&S XU 4200
3.77 6166.5368.02.01
Fig. 3.76 Main/Standby cabling PTT Type II. (cutout).
Note: If transceivers are configured for main/standby operation, the
"TEST_OC" and "*OFF” contacts of only one
module (receiver or
transmitter) must be connected together. The "TEST_OC" and "*OFF"
contacts of the two modules are internally hard-wired in the transceiver.
3.6.3 Configuration
Setting using
the R&S ZS 4200
1. Use the Service and Maintenance Tool R&S ZS 4200 to configure one
of the two devices as “Main (0)” and the other one as “Standby (1)” unit.
Setting on the radio
or via remote
control
2. The following settings have to be done in the local mode or via the
remote control system.
Both radios (in transceiver radios: four radio modules – 2x TX and 2x
RX) have to be set to "AUTO" via the remote control command
"MS_AC" or they could be configured to activation state "ON" in the
local mode (see Fig. 3.71).
After leaving
the local mode, the device will automatically switch to the
"AUTO" mod
e and will be ready for the main/standby switchover (see
Fig. 3.72).
Note: The op
eration of the Service and Maintenance Tool R&S ZS 4200 is
described in detail in the corresponding operating manual.
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