Справочник Пользователя для Rohde & Schwarz Inc SLV8000

2100.4400.32

- 5.58 -

E-2

The transmitter has an automatic switchover function which, in the event of a signal failure,
switches the transmitter from one input to the other input (provided that a valid input signal
is available at the standby input). Before a failure occurs, the preselected input is active.

The way in which this automatic switchover function operates is determined by the following
factors:

– Automatic switchover: ON or OFF (Autoswitch)
– Delay times which must elapse before the switchover is performed (Check Time For-

ward and Check Time Back)

– Priority mode: Inputs have the same priority or the preselected inputs have priority (Pri-

ority)

– Operating and standby inputs synchronized or not synchronized (in conjunction with

Seamless Switching)

If automatic switchover is OFF, the preselected input remains active even if the input signal
fails.

If automatic switchover is ON and there is a failure at the preselected input, switchover to
the associated standby input takes place.

Following a switchover of the preselected input, the automatic system switches back to this
priority input as soon as a signal reappears. Switchover is delayed for the set delay times.

If the signal fails at both the operating input and the standby input, the priority input remains
active.

Following a switchover of the preselected input, the standby input with the same priority re-
mains active until the input signal fails on this input also. The automatic system switches
back to the preselected input, but only if a signal is present on it once again. Switchover is
delayed for the set delay times.