Page 28 of 40
Issue 2
13/12/99
PETS-2 Crossing Telephone System
QUICKFIX INSTALLATION HANDBOOK
28
BLOCK 1 - the lower block, nearest the earth bar (pair1 to the left)
Pair Signalbox Level Crossing Description
1a Anode
com.
NA -Note 1 Remote Alarm Display - 7 segment display
1b cathode D NA Remote Alarm Display - 7 segment display
2a cathode C NA Remote Alarm Display - 7 segment display
2b cathode G NA Remote Alarm Display - 7 segment display
3a cathode B NA Remote Alarm Display - 7 segment display
3b cathode E NA Remote Alarm Display - 7 segment display
4a cathode F NA Remote Alarm Display - 7 segment display
4b cathode A NA Remote Alarm Display - 7 segment display
5a Button a NA Remote Alarm Display - Interrogate button contact,
normally open.
5b Button b NA Remote Alarm Display - Interrogate button contact,
normally open.
6a Input 1 &
Mains/
charger
alarm
Input 1 &
Mains/ charger
alarm
Line 1 control input. Connect to 0V to enable, shared
with power supply and charger alarm. This input is
forced to 0V by a parallel connected opto-transistor
when a mains/ charger alarm is activated.
6b Input 2 Input 2 Line 2 control input (Line 2 card is required for this to
function). Connect this input to 0V to become active.
7a Input 3 Input 3 Line 3 control input (Line 3 card is required for this to
function). Connect this input to 0V to become active.
7b Input 4 Input 4 Line 4 control input (Line 4 card is required for this to
function). Connect this input to 0V to become active.
8a +12V
fused,
100mA
limit
+12V fused,
100mA limit
Use this terminal for a local auxiliary supply. This
point is internally connected to the Output relays.
Note: the output relay can be commoned to 0V by
altering a link on the termination PCB.
8b 0V 0V Use this 0V to activate Inputs 2 to 4
9a Output 1 Output 1 This output is allocated to the mains/ charger alarm
from the distant site, and is configured to provide
+12V fused on this terminal in the event of mains/
charger alarm arriving from the other site.
9b Output 2 Output 2 Line 2 control output, will become +12V when Input 2
at the other site is connected to 0V. Line 2 cards
must be fitted at each site.
10a Output 3 Output 3 Line 3 control output, will become +12V when Input 3
at the other site is connected to 0V. Line 3 cards
must be fitted at each site.
10b Output 4 Output 4 Line 4 control output, will become +12V when Input 4
at the other site is connected to 0V. Line 4 cards
must be fitted at each site.
To Next Page
Loading...