TESTING OF MASTER TALKBACK AND SLAVE TALKBACK

Master talkback

Master device connects with the business broadcasting and Slave device and reports the business

to the operation place and depot premises.

Electrical characteristic :

a. Environmental condition

(1) Ambient temperature : 0ºC ~ 40 ºC

(2) Relative humidity : 35~85%

b. Power supply

AC 220V ± 10% 50 Hz

c. Rating input

(1) Slave device : 5W

(2) Broadcasting speaker : 15W

d. Input Impedance

(1) Slave device : 600Ω ± 20%.

(2) Broadcasting speaker : 2kΩ ± 15%.

TEST METHODE

Voice receiver in master, slave and speaker must be clearly.

A normal communication between Control block and Operation console is confirmed :

Tx LED and Rx LED of the CONT board panel light.

POWER LED of operation console lights

ALARM LED of operation console is turned off.

The test configuration is refer to fig. I. 1, 2, and 3

I. Communication from Talk back Master unit to Talk back Slave unit.

a. Push Line switch (no 1) and the LED indicator should be on

b. Push the change switch for sending the message

c. If the operator in talk back master unit receive the message, there is no button mush be pushed.

d. Record the result of voice receiver and communication ( Good or Not Good ) to attached FUNCTION TEST REPORT.

e. If communication is finish, push reset switch and then the lamp (no 1 ) will be off.

f. Repeat step point a to e for the other line switch depend on amount of talk back slave unit in depot.

II. Communication from Talk back Slave unit to Talk back Master unit.

a. Push the button in Talk back Slave unit (TB1), and sending the message, so Line switch lamp (no 1) in Talk back Master unit will light.

b. From Talk back Master unit, sending the message with push the change switch button.

c. Record the result of voice receiver and communication ( Good or Not Good ) to attached FUNCTION TEST REPORT.

d. If communication is finish, push reset switch and then the LED indicator will be off .

e. Repeat step point a to d for the other Talk back Slave Unit in depot.

III. Pagging from Talk back Master Unit to Broadcast Unit ( speaker )

a. Push Paging switch (no.1) so the lamp will be light on. While the operator in Talk back Master send the message (paging)

b. Record the result of voice receiver and communication ( Good or Not Good ) to attached FUNCTION TEST REPORT.

c. If paging is finish, release Paging switch and then the lamp (no.1) will be light off.

d. Repeat step point a to c for the other paging switch depend on amount of broadcast unit in depot.

IV. Volume Adjustment

a. The telephone volume to slave device and the receiving talk volume from the child device can be adjusted from master device to the unit of line.

V. Broadcasting

a. The (BROADCAST) switch display light of the correspondence light when (BROADCAST) switch is pushed.

b. It is possible to broadcast to the selected broadcasting line.

c. After broadcasting ends, (RESET) switch is pushed.

VI. Alarm Output

a. It abnormally displays to operation console when Master device is abnormal, and the warning point of contact is output.

TESTING OF INTERPHONE

INTERPHONE

The function of Interphone is to communication with the master operator and other party lines.

Electrical characteristic :

a. Environmental condition

(1) Ambient temperature : 0ºC ~ 40 ºC

(2) Relative humidity : 35~85%

b. Power supply

DC 12V ± 10% 50 Hz

c. Audio output power

900mW

d. Output Impedance

8Ω

TEST METHODE

Voice receiver in master and remote must be clearly.

The test configuration is refer to fig. I. 1 and I.2

I. Communication from Master unit to Remote unit.

a. Push a station selector button of station desired (no 1) and the LED indicator should be on

b. Push the change switch for sending the message

c. If the operator in master unit receive the message, there is no button mush be pushed.

d. Record the result of voice receiver and communication ( Good or Not Good ) to attached FUNCTION TEST REPORT.

e. If communication is finish, push reset switch and then the lamp (no 1 ) will be off.

f. Repeat step point a to e for the other line switch depend on amount of talk back slave unit in depot.

TESTING OF ELECTRIC CLOCK

Master Clock and Slave Clock.

The function of clock is to determine time for train operation and schedule for

maintenance of rolling stock.

TEST METHODE

Synchronized from master clock to secondary clocks must be clearly.

The test configuration is refer to fig. I. 1

a. Check the synchronized within master clock and slave clock of station desired.

b. Record the result of synchronized ( Good or Not Good ) to attached FUNCTION TEST REPORT.

c. Repeat step point a to b for the other slave clock depend on amount of slave clock unit in depot.

TESTING OF LOCAL CABLE

Local Telecom Cable
After the installation of local cable (Laying, Splicing and Terminating), the cables has been tested as follows or as directed by the engineer. Test Procedure and Data Record are described in this report.

INSULATION RESISTANCE.
Test Purpose
The purpose of this test is to confirm the insulation of each conductor.
Specification :
Insulation Resistance : not less than 5000 Mohms.Km
Test Configuration
Refer to fig I.1
Test Equipment
KYORITSU 3005 A
Test Procedure :
Set up the measuring equipment as shown on fig I.1 ( Insulation resistance test configuration), measure the insulation resistance between conductor of each pair and the between conductor and shield of cable.
Record the measurement to the attached TEST DATA SHEET, after calculate the length of cable.

CONDUCTOR RESISTANCE
Test Purpose :
The purpose of this test is to confirm the loop resistance of each pair
Specification :
Conductor resistance : not more than 29.0 Ohm/Km.
Test Configuration
Refer to fig I.2
Test Equipment
KYORITSU 3005A

Test Procedure
Set up the measuring equipment as shown on fig I.2 ( Conductor resistance test configuration), measure the loop resistance of conductor for every pairs of cable.
Record the measurement to the attached TEST DATA SHEET, after calculate the length of cable.

TESTING OF MAIN CABLE

Main Telecom Cable
After the installation of main cable (Laying, Splicing and Terminating), the cables has been tested as follows or as directed by the engineer. Test Procedure and Data Record are described in this report.

INSULATION RESISTANCE.
Test Purpose
The purpose of this test is to confirm the insulation of each conductor.
Specification :
Insulation Resistance : not less than 5000 Mohms.Km
Test Configuration
Refer to fig I.1
Test Equipment
KYORITSU 3005 A
Test Procedure :
Set up the measuring equipment as shown on fig I.1 ( Insulation resistance test configuration), measure the insulation resistance between conductor of each pair and the between conductor and shield of cable.
Record the measurement to the attached TEST DATA SHEET, after calculate the length of cable.

CONDUCTOR RESISTANCE
Test Purpose :
The purpose of this test is to confirm the loop resistance of each pair
Specification :
Conductor resistance : not more than 29.0 Ohm/Km.
Test Configuration
Refer to fig I.2
Test Equipment
KYORITSU 3005A

Test Procedure
Set up the measuring equipment as shown on fig I.2 ( Conductor resistance test configuration), measure the loop resistance of conductor for every pairs of cable.
Record the measurement to the attached TEST DATA SHEET, after calculate the length of cable.