BTS Alarm Checking PPT

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HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Huawei Confidential

Security Level:

2008-12-1

ALARM SOLUTION AT BTS SITE

Created by: N00717083

Outsource department TSD

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CONTENT



Alarm system checking at BTS



Frequent mistake of installation

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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 3

Alarm system checking at BTS



Safety reason



Shall not wear any gold, silver, watch, ring or any jewelry

during the testing process



Make sure all of the testing step shall not be make any

interruption of BTS, or affect to the BTS system



Shall not put any iron or conductive material on or near the

equipment as BTS and power system, this may cause some

dangerous damage to the system and interrupt of

communication



Take a insulated glover and pay high attention when working

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Alarm system checking at BTS



Tools requirements



Multi-meter

(is a must)



LED

(is a must)



Krone knife

(is a must)



Knife

(is a must)



Minus and star screwdriver

(is a must)



Camera

(optional)

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Alarm system checking at BTS



General checking



General checking the status of electrical part as following:



AC main



DC power



Air conditioning



OBlight



ACU Controller



SPD (Arrester)



CB position, etc

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Alarm system checking at BTS



General checking (Continue)



Fast reading the drawing of alarm wiring system

DDF Fire sensor siren

1

8 6 4 2 5 9 1 3 7 10 Rectifier

2 3 4

6 7 8 9

ACU

&

EMU

Ventilation Aircon1 Aircon2

BTS

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Alarm system checking at BTS



General checking (Cont)



Checking color code of cable on DDF



Row 1: Make sure cable run in right way to equipment

– Check color code on row 1

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Alarm system checking at BTS



Checking color code of cable on DDF (Cont)



Row 2:

– Color code shall be same picture as follow

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Alarm system checking at BTS



Checking the label of UTP cable

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Alarm system checking at BTS



Checking the label of UTP cable (Cont)



On BTS (Alarm port)

– If any difference, check the port again and reconnect or re-label if

need

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Alarm system checking at BTS



Testing alarm



Clear all alarm



Check alarm signal at all of 10 pins on DDF



Using Multi-meter (Recommend): Two pole of each pin shall close,

sound can be heart

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Alarm system checking at BTS



Testing alarm (Cont)



Make sure all of testing will not affect to the BTS system before

testing



Test alarm one by one from No.1 to No.10, refer table below for

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Alarm system checking at BTS



Testing alarm (Cont)

Door Alarm High temp 1 Control fail A High temp 2 Fire Alarm Oblight Alarm Common Alarm Module Alarm Low Bat Alarm Main Alarm Open the door Set “high tem 1” Switch it’s power Set “high tem 2” Smoke Switch off Oblight Simulate PS alarm Pull out rectifier Set “low bat 2” Switch Off AC Pull out cable Pull out cable Pull out cable Pull out cable Test relay 6 Test relay 5 Test relay 3 Test relay 1

10

9

8

7

6

5

4

3

2

1

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Alarm system checking at BTS



Testing alarm (Cont)



With each alarm, check pins is open or short circuit status, should

do a record as below from pin 1 to pin 10 (Grey highlight is the hint

about the right operation of testing)

Alarm

OFF

ON

LED

(NO only)

Open

Short-circuit

Multi-meter

Normal

Pin No.#

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Alarm system checking at BTS



Testing alarm (Cont)



1. Main alarm:



Make sure Battery can supply power for BTS



Switch off AC main CB

Switch off CB

will simulate

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Alarm system checking at BTS



Testing alarm (Cont)



2. Low bat alarm:



Go to service option/ Relay test/ Relay No.# and test relay 3



3. Module alarm:

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Alarm system checking at BTS

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4. Common alarm:



This alarm shall be happen if any mistake of PS system



Also can test relay 6 to simulate this in other way

Switch off this

CB will

simulate alarm

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Alarm system checking at BTS

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5. Oblight alarm



Switch off Oblight switch

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Alarm system checking at BTS

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6. Fire alarm



Smoke



Or pull out cable from ACU

Smoke will

simulate alarm

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Alarm system checking at BTS



7. High temp 2 alarm



Set “High temp 2” lower than current temp



Or pull out cable from ACU & EMU

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Alarm system checking at BTS

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8. Control fail alarm



Switch off switch on ACU & EMU



If there is no power switch, should turn off the power switch of air

condition in Auto mode

Switch

off will

simulate

the alarm

Turning off to

simulate the

alarm

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Alarm system checking at BTS

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9. High temp 1



Set “High temp 1” lower than current temp



Or pull out cable from ACU & EMU

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Alarm system checking at BTS



10. Door larm



Open the door will simulate the alarm



Closing the door will clear the alarm

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Frequent mistake of installation



Failure hardware as



ACU & EMU: Too many



Eltek alarm card out put: Some



Oblight alarm out put: Some



Wrong connection:



From UTP cable to DDF: Too many => Follow Huawei’ standard is a

must



Wrong UTP port position, wrong label

=>

IF ANY DIFFERENCE FROM HUAWEI’S STANDARD, NEED

TO REINSTALL FOR THE RIGHT OPERATION

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