Main/Standby Operation (1:1) R&S SU 4200
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3.6 Main/Standby Operation (1:1)
3.6.1 Requirements for Proper Functioning
This chapter
0.
This chapter provides information about the cabling and configuration of the
radio pair for the main/standby operation.
Main-Standby Ope ratio n\Main-standby o peratio n "Radio".doc
1. Cross-connect the sum test outputs (TEST-OC) and *OFF (X5) inputs
of the two devices by using the cabling described in
Fig. 3.54.
2. Use the R&S ZS 4200 to configure one of the two devices as “Main”
(A=0) and the other one as “Standby” (B=1) unit.
The R&S ZS 4200 has to be used also for the NOGO configuration.
3. The following settings have to be done in the local mode or via the
remote control system.
Both radios 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. 3.57).
After leaving the local mode, the device will automatically switch to the
"AUTO" mode and will be ready for the main/standby switchover (see
Fig. 3.58). In this case, input *OFF will be activated (X5.7).
Note: If one radio is in local mode while the other one is in remote
mode, then the local operated radio is active and the second one is
inactive. Constellation remains even when the local mode is left. The
main/standby switchover capability of the radio pair is now available in
remote mode or non-controlled mode.
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