This
alarm is reported when the battery circle circuit is broken and the battery is
configured.
Troubleshooting
steps: Make sure the batteries connection are
correct or not
Take down the
cover of the battery box and measure the voltage between the two wire
terminals. Make sure the voltage is consistent with the value on the label. If
not, then change the connection between the batteries. Re-connect the batteries
according to the “TBD Instructor” and Figure 1, if alarm appears, then go to next
step
2) Make
sure the switch of the battery circuit is ON, see Figure 2，If alarm appears, then go to next step
3) Make
sure the active switch of the battery on PMU is ON，Press the “ON” 5s by a small round pole till
a sound of connection,
4) If
alarm still appears, please
contact Huawei Technical Support
Attention,
after above operating, if alarm disappears, need test battery backup function.
The test method is: make sure battery is OK, and turn off AC input, observe
that whether BTS can work normally.
2. BTS3012AE AC Arrester Failure(ID：5672)
Troubleshooting
steps:
1)
Turn
off the AC input, and then remove the cover of the AC arrester. See Figure 4.
2)
Check
the connection of the power supply unit to make sure the N line cable is on the
right position, if OK, go to next step
3)
Make
sure that is safety; turn on the AC input, then check the LED of the AC
arrester. If the LED is green, maybe the alarm cable is not connected. Turn off
the AC input, and then reconnect the alarm cable. After that, check the alarm
is disappeared or not. If not, please change the AC arrester; if the LED of
arrester is red, check the voltage between L and N with multi-meter. If the
value is near 125V, the AC arrester is broken, please replace it. If the value
is abnormal, please check the connection between the N line cable and AC
arrester.
4)
If
alarm still appears, Replace the AC lightning arrester, The alarm is not
cleared if no，go to next step;
5)
Replace
the PMU., Observe whether the alarm is cleared after the replacement, The alarm
is not cleared. Please contact Huawei Technical Support
Notice:
a. The figure 4 is only for double line wire AC power input, 220V
AC input is different.
b. When check the AC arrester, make sure the AC power is turn off.
3. Door Alarm (ID: 6020)
Troubleshooting
steps:
1) Check if it is the maintenance
engineer that opens the cabinet door or if someone opens the cabinet door
illegally", if not, go to next step
2)
Please check whether the door extended cable
is connected, see figure 5;
Figure 5
3)
Please press the front door tightly, and
check whether the door alarm is disappeared, if the door alarm disappeared, we
can solve like this: sticking adhesive tape on the door switch, otherwise
please go to next step;
4)
Please close the front door, and open the
back door, press the back door tightly, and check whether the door alarm is
disappeared, if the door alarm disappeared, we can solve it by sticking
adhesive tape on the door switch, otherwise please go to next step;
5)
Please press both the front and back door(two
person is needed here), and check whether the door alarm is disappeared, if the
door alarm disappeared, solving it according 2) and 3); if not, go to next step
Solving key:
according to the current case of door alarm, all of the problems are caused by
the lower extent of door switch, we can solve it by sticking adhesive tape on
the door switch, 3 layer adhesive tapes are needed for the normal case,
according to figure 6.
6)
In this case, the sensor is faulty, please replace it, if necessary,
repeat step 2~5;
7) If
alarm still appears, please
contact Huawei Technical Support
4.
Fan Fault Alarm (ID:9736)
Troubleshooting
steps
1)
Checking
whether the cable connects correctly or not; testing whether the input voltage
of the fan box is normal or not; checking whether the cable connects reliably
or not; checking whether the alarm line connects correctly or not, see Figure
7, after installing alarm cable again, observing whether the fan works normally
or not, if not, go to the next step.
2)
Pull
out the fan box, checking the inside cable connects whether or not correctly,
using multi-meter to test the input voltage of control board, if the voltage is
abnormal, change input power cable;
3)
Exchanging
the corresponding interface of control board(between normal fan and abnormal
fan), see Figure 8, if the fan is faulty, and replace the fan, if it is the control
board is faulty, and change it.
5. BTS3012 Cabinet 0 Arrester Alarm (ID: 4778)
Troubleshooting
steps
1)
If
the LED is normal(the green light is on), then check the alarm cable connection
and Reconnect the alarm cable (pay attention to the position), see figure 9,
if the alarm still appears, change the
arrester;
2)
If
the LED is abnormal (the red light is on): Using multi-meter to test input
voltage of arrester, if it is -48v, the arrester is faulty, change the
arrester.
6. No AC Input Alarm（ID:10774）
This alarm is
reported when the DHEU has no AC input.
Troubleshooting
steps
1)
Check
whether the AC distribution switch of the DHEU is switched on. (See Fig.
10), if the switch is switched on, this alarm still doesn’t disappear, go to
next step.
Figure 10
2)
The input AC power should be checked whether
it is normal. Firstly, the input AC power cable of the heat exchanger should be
disconnected from the socket (See Fig. 11), the voltage of this cable should be
measured to see whether it is normal (220VAC); then plug the input AC power
cable into the socket again, if this alarm doesn’t disappear yet, go to next
step.
Figure 11
3)
Replace
the transformer of the DHEU. Observe whether the alarm is cleared after the
replacement.
The alarm is not cleared.
Please contact Huawei
technical support to handle it
7. No DC Input Alarm
(ID:10772)
This alarm is
reported when the DHEU has no DC input
Troubleshooting
steps
1)
Check
whether the DC distribution switch of the DHEU is switched on (See Fig.
12), if this alarm still doesn’t disappear when set the switch on, then go to
the next step.
Figure 12
2)
Check
whether the DC socket of the DHEU is properly connected (See Fig.
13), if not, connect it, if alarm still appears, the voltage of this cable
should be measured to see whether it is normal (48V, the brown one is the
positive, the blue one is the negative); then plug the input DC power cable
into the socket again, if this alarm doesn’t disappear yet, Please contact Huawei technical
support.
8. PSU Faulty Alarm (ID: 6982)
This alarm is
triggered when the PSU is faulty.
Troubleshooting
steps
1) Please confirm whether additional PSU is
configured in the data configuration, if yes, delete the additional data; the
alarm is not cleared, go to next step;
2) Plug PSU again, confirm PSU was
installed tightly, the alarm is not cleared, go to next step;
3) Observe whether the PSU fan work
normally, if not, Replace PSU；if yes, go to
next step;
4) Take out of other normal PSU，install
faulty PSU again, if alarm still appears, go to next step;
5) Change faulty PSU slot, if alarm still
appears, go to next step;
6) Replace faulty PCU, if alarm still
appears, go to next step, Please contact Huawei technical support.
9. Heater Alarm (ID: 10768)
Troubleshooting
steps:
1)
Check
whether the cabling of the heater is secure, and Reconnect the cables, Observe
whether the alarm is cleared after the reconnection, the alarm is not cleared.
Go to next step;
2)
Replace
the heater of the DHEU, The alarm is not cleared. Go to next step;
3)
Replace
the DHEC, Observe whether the alarm is cleared after the replacement, the alarm
is not cleared. Please contact Huawei technical support.
10. PSU Shutdown Alarm (ID: 5648)
Troubleshooting
steps:
1)
Check
if the LMT sends the shutdown command to the power system, if yes, Power on the
power system. See if the alarm is cleared. Go to next step, if command is not
sent, Go to next step;
2)
Check
if the output of the power system is normal; also check whether there are other
alarms. If have, solve power system problem, if have not, go to next step
3)
Replace
the DPMU that has an alarm. The alarm is not cleared. Please contact Huawei
technical support.
11. PMU Communication Alarm (ID: 9696)
Troubleshooting
steps:
1)
Check
PMU DIP switch, 1,2 should be ON, other should be off;
2) check if the PMU module is on the
right slot and power on, re-install the PMU module and power on again,
re-connect the PMU communication cable, check if the alarm disappear, if yes,
go to next step;
3) replace the PMU module, check if the
alarm disappear, if no, go to next step;
4) replace the PMU communication cable,
check if the alarm disappear, if no, go to next step;
5) disconnect the communication cable
that connect the DDPU board, the DEMU board and the FAN module to the CBUS3 in turn, check if the alarm disappear, if
no, go to next step;
6)
Replace
the DTMU board, check if the alarm disappears, if no, Please contact Huawei
technical support.
12.
TRX Clock Critical Alarm (ID: 4184)
Troubleshooting
steps:
1) replace the DTRU module, check if the
alarm disappear, if no, go to next step;
2) replace the main-control module, check
if the alarm disappear, if no, go to next step;
3) check if the cable between the DTRB
backboard and the DSCU board is good, re-connect this cable, check if the alarm
disappear, if no, go to next step;
4)
Replace
the DSCU board, the DTRB backboard and the main-control backboard in turn,
check if the alarm disappears, if no, Please contact Huawei technical support.
13. DTRU Communication Alarm (ID: 4192)
Troubleshooting steps:
1) Check if the data configuration is
consistent with the hardware configuration, and the DTRU module is on the right
place, if yes, go to next step; if not, re-install the DTRU module or update
the data configuration.
2) Check if the site has been reset
manually or the power is turned off, if yes, don’t handle it; if not, go to
next step;
3) replace the DCSU signal transfer board
and check if the alarm disappear, if no, go to next step;
4) Replace the cable between the DCSU and
DTRB, check if the alarm disappear, if no, go to next step
5) Replace the faulty DTRU, check if the
alarm disappear, if no, go to next step
6)
Replace
the main controlling module, check if the alarm disappears, if no, Please
contact Huawei technical support.
14. TRX Main Clock Alarm (ID: 4154）
Troubleshooting steps:
1) Replace the DTRU module, check if the
alarm disappear, if no, go to next step;
2) Replace the main-control module, check
if the alarm disappear, if no, go to next step;
3)
Replace
the DCCU board, check if the alarm disappears, if no, Please contact Huawei
technical support.
15. TRX VSWR Alarm (ID: 4144)
Troubleshooting steps:
1) Check if the connections at the power
output port of the DTRU are secure, Secure the connectors and reset the DTRU.
Check if the alarm is cleared. If no, go to next step;
2) Check if the connections at the port
of the DDPU are secure, Secure the connectors and reset the DTRU. Check if the
alarm is cleared, if no, go to next step;
3) Replace the cables between DTRU and
DDPU. Reset the DTRU and see if the alarm is cleared. if no, go to next
step;
4) Replace the faulty DTRU and see if the
alarm is cleared, if no, go to next step;
5) Replace the DDPU. Reset the DTRU and
see if the alarm is cleared, if no, contact Huawei technical support.
16. Diversity Receive Channel Alarm (ID: 4178)
Troubleshooting
steps:
1) Check whether the RF cable connected
to the diversity receive port on the DTRU is loose or damaged. Secure the loose
connector to the port or replace the damaged cable, Check if the alarm is
cleared. If no,go to next step
2) Replace the faulty DTRU and see if the
alarm is cleared, If no,go to next step
3) Replace the faulty DDPU. Check if the
alarm is cleared, If no,go to next step
4) Check whether the diversity receive RF
cable between the DDPU and cabinet top is is loose or damaged. Secure the
loose connector to the port or replace the damaged cable, If no,go to next
step
5) Check all the cables and devices
between the cabinet top and antenna to see whether there is any loose cable
connector, cable damage or TTA damage, Secure the cable connector to the
relevant port or replace the cable or TTA, If no, contact Huawei technical
support.
Notice, for the cells
for indoor coverage, only install main receive cable(from DDPU to antenna), so
it is normal that there is this alarm
17. Board Communication Alarm (ID: 5292)
This alarm is reported when the main controlling module detects abnormal communication between it and the radio frequency (RF) front module.
Troubleshooting
steps:
1) Check if the RF module has been
installed and powered on., if not, Install it and connect the cables, then go
to step 3
2) Check the cables between the RF front
module and the main controlling module. Plug out the serial port cable of the
RF front module and see if the terminal and the terminal cable are normal. If
not, adjust the terminal and the terminal cable, then go to next step
3) Connect the cables of the RF front
module properly and power it on. Check whether the alarm is cleared. If no, contact
Huawei technical support.
18. AIS Alarm (ID: 4718)
Troubleshooting
steps:
1)
Check
the DIP switch settings of the BTS
Check whether the DIP switches S1, S2,
S10 and S11 on the TMU panel are correctly set. If no, modify the settings
based on the following descriptions:
S1: ON indicates that the impedance
over E1 ports 3 and 4 is 75 Ω; OFF indicates the impedance over the two ports
is 120 Ω
S2: ON indicates that the impedance
over E1 ports 1 and 2 is 75 Ω; OFF indicates the impedance over the two ports
is 120 Ω.
S10: ON indicates that the outer
conductor of E1 links 1 and 2 is grounded while OFF indicates that the outer
conductor is not.
S11: ON indicates that the outer
conductor of E1 links 3 and 4 is grounded while OFF indicates that the outer
conductor is not.
Check whether the alarm is cleared, if
no, go to next step.
2)
Check
the transmission link of the near-end BTS
a) Perform a loopback test by
connecting port RX0 with TX0 on the near-end BTS. Check whether the indicator
LIU0 on the TMU panel is off. If no, go to step 4.
b) Restore the connection to the appearance
before the loopback test. Check whether the alarm is cleared. If no, go to next
step
3)
Check
the peer transmission link
Perform a loopback test on the
transmission link at the upper level BSC or BTS. Check whether the indicator
LIU corresponding to the peer E1 link is off. If yes, The peer transmission
link is not available. Repair the peer transmission link and the alarm handling
ends. If no, please the alarm may be caused by hardware failure. Contact Huawei
Technical Support.
4)
Replace
the TMU
Replace the TMU and check whether the
alarm is cleared, if no, please contact Huawei Technical Support.
19. PSU Communication Alarm (ID: 5646)
Troubleshooting steps:
1) Check whether the power module is
correctly configured, Check whether the number of power modules configured on
the maintenance system is the same with the actual configuration, if not, go to
next step
2) Reconfigure the module. See if the
alarm is cleared. If no, go to next step
3) Check whether the PSU and PMU in the
power system are secure. Check whether the PSU and PMU are tightly
inserted, if yes, go to step 4, if no, Pull out the board and tightly insert
it. See if the alarm is cleared.
4) Replace the faulty PSU. See if the
alarm is cleared. If no, please contact Huawei
Technical Support.
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