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The purpose of this User Guide is to provide system users with instructions for accessing the TOEIC® Online Products Management System as well as information on the features and functions of the System.
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BTS MAINTENANCE
1.Hardware system 2.Typical case
1.System Position and Role in Mobile Network
• In a GSM/GPRS network, ZXG10 B8018 is the radio transceiver for GSM BSS. BSC controls BTS, and one BTS serves a certain cell or several cells. • Abis interface connects BTS to BSC. It helps BSC to manage radio resources, and achieve radio transmission with MS and relevant control functions through Um interface.
Rack structure
Signal flow 机 柜
B8018 B SC
C SB C M B
EIB
D TR U
（0~2）
A E M LA Y ER
D TRU
（3~5）
A EM 1
LA Y ER
天 馈
D TR U
（6~8）
A E M 2
LA Y ER
3
Module function
Panel and indicator of CMB LED
Color
Name
Meaning
Working Mode
1
Green/Red
PWR
Power LED
Green ON: Normal Red ON: Alarm OFF: Power off or other reasons
2
Green
RUN
Running LED
Green flashing at 4 Hz: Boot is running Green flash at 1 Hz: Application is running Others: System is abnormal
3
Green/Red
SYN
Clock synchronization mode LED
Green ON: Synchronization clock of the Abis interface network Green flashing at 1 Hz: Synchronization clock of the SDH network Red flashing at 1 Hz: E1 frame out-of-sync alarm Red ON: E1 line is broken or not connected OFF: Free running
4
Green/Red
CLK
Clock LED
Green ON: Network synchronization is locked Green flashing at 1 Hz: Locking the phase Red ON: Clock fault
5
Green
MST
Active/Standby LED
Green ON: Active state Green OFF: Standby state
6
Green/Red
STA
Status LED
OFF: Running normally Green flashing at 1 Hz: System initialization Green flashing at 4 Hz: software loading
Red flashing at 1 Hz: LAPD link disconnection Red flashing at 4 Hz: HDLC link disconnection .
Red ON: Other alarms (such as temperature, clock and frame number alarms)
CMB PWR RUN
SYN
CLK
MST
STA
M/S
RST FPWR
Panel and indicators of CDU
LED Position
Color
Name
Meaning
Working Mode
1
Green
FPO
Forward power output LED ON: Normal OFF: Abnormal
2
Red
SWR1
VSWR level-1 alarm LED
ON: There is an alarm OFF: There is no alarm
3
Red
SWR2
VSWR level-2 alarm LED
ON: There is an alarm OFF: There is no alarm
4
Green
PWR
LNA power supply LED
ON: Normal OFF: Abnormal
5
Red
LNA
LNA alarm LED
ON: There is an alarm OFF: There is no alarm
DTRU PANEL INDICATORS
DTRU PANEL INDICATORS
The ID switch 15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SATE
Whether to use the satellite Abis link or not
BTS _TYPE
BTS _NO
SLAVE 1_ PORT
SLAVE 2_ SATE PORT
ABIS _PORT
ABIS _TS
•
•
BTS_TYPE – 1100: B8018 – 1101: B8112 – 1110: M8202 – 1111: M8204 BTS_NO – No. of the cabinet of the same site – 00: Basic cabinet – 01: Extended cabinet 1 – 10: Extended cabinet 2
SLAVE1_PORT
The E1 port of the basic cabinet to connect extended cabinet 1
00: Port E of the basic cabinet
01: Port F of the basic cabinet
10: Port G of the basic cabinet
11: Port H of the basic cabinet
SLAVE2_PORT
The E1 port of the basic cabinet to connect extended cabinet 2
00: Port E of the basic cabinet
01: Port F of the basic cabinet
10: Port G of the basic cabinet
11: Port H of the basic cabinet
0: Common Abis
1: Satellite Abis
ABIS_PORT
O&M port number
00: Port A
01: Port B
10: Port C
11: Port D
ABIS_TS
The O&M LAPD timeslot on the Abis interface
000: TS16
001: TS31
010: TS30
011: TS29
100: TS28
101: TS27
110: TS26
111: TS25
CMB
S10 dip switch show as the table bellow
EIB
S2 S4
S5 S6
EIB
E1 color code 1 Green red 1 E1AIN+ The first E1 input 14 Green red 2 E1AIN8 Blue red 1 E1AOUT+ The first E1 output 20 Blue red 2 E1AOUT2 Green black 1 E1BIN+ The second E1 input 15 Green black 2 E1BIN9 Blue black 1 E1BOUT+ The second E1 output 21 Blue black 2 E1BOUT-
Indoor alarm color code 1. white blue-- 1 2. Blac blue-- -0 3. white orange-0 4. black orange-0 5. green white--0 6. black green---0 7. white brown-0 8. black brown--0 9. blue red-0----0 10.red orange---0
HDLC link b/w CMB and FUC is broken. Reason.1-The mismatch b/w the logical and physical configuration. Reason.2-The DTRU power may be off. Reason.3-The connection B/w CDU and DTRU is not proper. Reason.4-DTRU harware problem. Reason.5-CMB card have problem.
Lapd broken Reason.1-The E1 is not conneted properly to e1 port . Reason.2-The Dip Switch is not proper. Reason.3-There loop some where b/w site and BSC. Reason.4-EIB is not working properly. Reason.5-particular PCM is faulty. Reason.6-configration is not proper in BSC .
Cell interruption alarm Reason.1-the BCCH trx is off Reason.2-DTRU is not available on the bcch trx. Reason.3-DTRU is not properly connected.
Cascading of sites For the cascading of two sites we need to follow these steps. 1.Connect the E1 cable at port 1 on the top of bts for the master sites intigration. 2.As master site is on air use another E1 cable to connect the port 2 of the bts. 3.Loop back the first e1 of port 2 and check the status of upper CMB synch and clk status,if is green then its ok
VSWR alarm Voltage standing wave ratio 3.0>VSWR>1.5 VSWR1 alarm VSWR>3.0 VSWR2 alarm sitemaster to test the value of the VSWR Reason.1-CDU problem Reason.2-AEM problem Reason.3-cable connection problem
continue • 4.The first E1 of port 2 connets to the transmission medium for the slave site. • 5.connect the e1 at slave site at port 1. • 6.check the id port dip set and that should be according to OAM timeslot 30 or 31.the mastes bts use 16 OAM time slot. dip config16-000 30-010 31-001 These we set on S1 of id port and dip switch no is 0,1,2.
