Siemens HiPath 3000 Series Service Documentation page 210

boards.fm
Boards for HiPath 3000
Central Board
Switches and indicators
Caution
7
System voltage can only be switched on or off by plugging in or out the power plug.
If using an uninterruptible power supply, switch off the battery voltage first.
LED, green: +5-V output voltage is available.
●
LED, yellow: –48-V output voltage is supplied by the external power supply (Powerbox
●
PB3000 with LUNA2).
Slide switch for setting the ring frequency:
●
– 25 Hz (GER + international market)
– 20 Hz (U.S.)
– 50 Hz (FKR)
Slide switch for activating and deactivating the battery voltage (batteries):
●
– up = off, battery voltage deactivated (battery backup off)
– down = on, battery voltage activated (battery backup on)
Slide switch for activating and deac-
tivating the battery voltage (batte-
ries)
LED, green: +5-V output voltage is
available
Slide switch for setting the ring fre-
quency
Figure 3-28 UPSC-DR - Switches and LEDs
3-78
Nur für den internen Gebrauch
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation