DDU and PEI

Question 1

What does the DDU control?

Answer 1

Destination headboard
Passenger information signs
Auto PA announcements
- work in conjunction with GPS/TDN
PEI’s
CCTV
LED and Flip Dot Headboard Equipment
Train running info for driver station/time

Question 2

How is the DDU powered?

Answer 2

110vDC

Question 3

How do you activate the DDU?

Answer 3

By opening the BVICS

Question 4

What happens if BVICS is closed for more than 3 minutes?

Answer 4

Headboard and internal displays will go to default mode:

“Metro”

Question 5

How do you reset the DDU if it returns to default mode?

Answer 5

Re-enter TDN when BVICS is next closed

Question 6

What status does the train need to be in for DDU to work?

Answer 6

One Pantograph

One MA

BVICS open

Question 7

What purpose does entering the TDN serve?

Answer 7

POTS - Position of Train System
PIDS
CCTV recorder

Question 8

How do you enter a TDN?

Answer 8

Push the TDN button

Scroll up or down to select numbers

Select ACCEPT after each number

Select week day and ACCEPT

Question 9

What does the MODE Function do?

Answer 9

Allows you to disable Auto Announcements

Push MODE, select DISABLE audio function

Question 10

What does CCTV Function do?

Answer 10

Allows driver to view CCTV while train is stationary

Screen returns to default when train speed exceeds 8kmh

CCTV operates automatically. Vision is dubbed over every 7 days

Question 11

What does the SPECIAL Function do?

Answer 11

Allows driver to enter a series of Special Messages

Question 12

What does the STATUS Function do?

Answer 12

Tests the PEI system

Tests the internal speakers and PIDS

Question 13

What does the DIMMING Function do?

Answer 13

Adjusts display screen brightness

Question 14

How do the Internal LED Matrix Signs (PIDS) work?

Answer 14

Station information is updated from data received from GPS system on top of train

Question 15

If there is loss of overhead power what happens to the PIDS?

Answer 15

When power returns the PIDS returns to settings programmed by driver unless power has been down for more than …

3 minutes

Then r re-insert TDN

Note that CCTV is not available during loss of overhead power

Question 16

What happens if the DDU has a system failure?

Answer 16

It auto re-boots.

Takes 2 minutes

Question 17

What can happen if you enter the wrong TDN?

Answer 17

Incorrect headboard and running conditions will be displayed

DDU will display “TDN not accepted”

Question 18

If the DDU will not accept the correct TDN what do you do?

Answer 18

Enter the TDN into the DTRS directly and select the relevant headboard

Manual PA announcements will need to be made in this instance

Question 19

When there is a defect in the DDU system what will be displayed?

Answer 19

Faults will be displayed in the bottom left hand corner of the screen. This code is given on the TMM when fault is logged

Question 20

What happens when a passenger activates the PEI?

Answer 20

Audible tone
Displayed on DDU:
- ‘Passenger Emergency’
- Carriage number
- CCTVvision displayed

Question 21

When should you answer a PEI call?

Answer 21

Only when safe to do so

Question 22

How long does it take for a PEI call to time out?

Answer 22

90 seconds

Question 23

How do you respond to a PEI call?

Answer 23

Press REPLY button on DDU

or

Pick up DDU microphone and press PTT

Answer: You have pressed the passenger emergency intercom, what is your emergency?

Question 24

What do you do if there is no response from a passenger?

Answer 24

Use the PA system to try and Get a response:

“if you still require assistance please press PEI again”