Huawei RRU Hardware Maintenance Manual page 46

RRU
Hardware Maintenance Guide
Prerequisites
An RRU has been replaced.
Procedure
Step 1 Power on the RRU according to the instructions in
Step 2 Check the operating status of the new RRU by observing the status of RRU indicators. When
the RRU is working properly, the RUN indicator is blinking (on for 1s and off for 1s), and the
ALM indicator is steady off.
Step 3 Optional: Set the maximum output power locking for TX channels of the RRU.
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Step 4 Instruct the network management system (M2000/U2000) administrator to unblock the RRU.
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Step 5 Take off the ESD gloves, and pack up all the tools.
Step 6 Place the removed RRU into the ESD box or bag. Then, place the ESD box or bag into a
foam-padded carton or the packing box of the new RRU.
Step 7 Complete the fault form with detailed information about the replaced component.
Step 8 Contact the local Huawei office to handle the faulty component.
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Issue 16 (2015-03-23)
On the UMTS or LTE side, run the LOC RRUTC command to set the maximum output
power of the RRU. Run the RST BRD command to reset the RRU. Run the DSP
TXBRANCH command to check whether the maximum output power of each RRU is
set successfully.
On the GSM side, log in to the SMT. In the left pane of the Site Maintenance Terminal
System window, click Site. In the right pane of the window, double-click Lock RXU
Traffic Capability. In the displayed Lock RXU Traffic Capability window, click the
Config tab. On the displayed tab page, select the target RRU. Log in to the LMT and
reset the RRU so that the configuration data takes effect.
On the GSM side, log in to the LMT. Enter LOC BTSRXUTC in the Command Input
box and click Assist to set the maximum output power. Then, Click Exec. Run the RST
BTSBRD command with Reset Type set to SOFTWARE to reset the RRU so that the
configuration data takes effect.
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If there is more than one RRU, perform the operation on each RRU.
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If there is more than one RRU, reset each RRU.
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If the configured maximum output power of the RRU exceeds its hardware capability, this
configuration is invalid and the maximum output power of the RRU is the maximum output power
supported by the RRU hardware.
On the UMTS side, log in to the NodeB LMT and run the UBL BRD command to
unblock the RRU.
On the LTE side, log in to the eNodeB LMT and run the UBL BRD command to unblock
the RRU.
On the GSM side, log in to the BSC LMT and run the SET GTRXADMSTAT
command with the parameter ADMSTAT set to UNLOCK to unblock the carriers of the
RRU.
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4 Replacing an RRU
3.1 Powering On an RRU.
39