Teledyne HPAC-2005, Руководство по эксплуатации

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84 205356 REV T 3 RU SSPA Chassis Operations Manual
4.2.1.2 Setting SSPA1 Switching Mode
1. From the front panel of SSPA1, press the
Main Menu
key;
2. Select
6.Redund.
and press the
Enter
key;
3. Select
1.Switching
and press the
Enter
key;
4. Select desired SSPA switching method and press the
Enter
key.
Note
: SSPA2 must use the same switching method as SSPA1.
4.2.1.3 Setting SSPA1 Unit Status
1. From the SSPA front panel press the
Main Menu
key;
2. Select
6.Redund.
and press the
Enter
key;
3. Select
4.Status
and press the
Enter
key;
4. Select
1.HPA
and press the
Enter
key.
Note
: SSPA2 unit status must be set to HPA2.
Repeat steps 4.2.1.1 through 4.2.1.3 for SSPA2.
4.2.2 Online / Standby Amplifier Selection
To determine the on-line state of a particular SSPA, check that the “Unit 1” button on
the front panel keypad (See
Figure 4-6
) is illuminated. To put the SSPA in Standby
mode, press the “Unit 1” key and the light should go off. If the system is in “Auto”
mode, the second SSPA will accept the on-line state only if there is no summary alarm.
The “Unit1” LED on the second SSPA will illuminate, indicting it is on-line and will
rotate the waveguide switch to the correct position. If the second SSPA does not
accept the on-line state, the first SSPA will revert to the on-line state after 1 second.
Note
: Only the Online unit can be switched to Standby mode. The re-
verse process, switching the standby unit to the on-line state, will not
work.
In Manual mode, the Standby SSPA will always accept the Online state regardless of
its own fault status. The user can verify the state of the waveguide switch by browsing
to informative screen [3] on the front panel display. Item RFSW1 will indicate the state
of the waveguide switch, as detected by the SSPA. If the switch position can not be
detected; “Fault” will be displayed.
Figure 4-6: “Unit 1” Indicator from Front Panel