Huawei Airbridge cBTS3612 Maintenance Manual page 18

On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
IV.
Power supply check
Table 1-7 Power supply check
Items
1. Use a multimeter to measure the
Primary voltage at the power inlet.
Power Supply 2. Check the -48V power indicator
(AC/DC) 3. Check the indicator of lightening
arrester
1. Check on the maintenance
Secondary
console if there is an alarm for
power supply
PSU.
(PSU)
2. Check the PSU panel indicator
V.
Lightening-proof and grounding check
Table 1-8 Lightening-proof and grounding check
Items
1. Check if the grounding clip is connected
properly w ith the grounding devices (such as
an iron tower, outdoor cabling rack and
Outdoor
outdoor grounding bar, etc.)
2. Check if the outdoor grounding bar is
connected properly with the grounding
objects.
1. Check if the indoor equipment (such as the
cabinet-top PE grounding bar, indoor cabling
rack) are connected properly with the indoor
Indoor
grounding bar.
2. Check if the indoor grounding bar is
connected properly with the grounding
objects.
Instructions
Instructions
1-11
Chapter 1 Daily Maintenance
Caution-demanding issues
1. Range of input voltage: -40V ~
60V.
2. Normally the power indicators
should be on all the time.
3. Normally the indicator of
lightening arrester should be off
all the time.
1. Normally there should be no
PSU alarm
2. To judge whether the PSU is
working properly, refer to
"Chapter 5 Component
Indicators".
Caution-demanding issues
A multimeter can be used to
help judge if the grounding is
OK.
A multimeter can be used to
help judge if the grounding is
OK