Specifications

Engineering Standard –NSW
Signalling SMS 02
Cerberus Level Crossing Monitor Equipment
March 2005 Version 1.2 © Australian Rail Track Corporation Page 101 of 118
This document is uncontrolled when printed.
8.2.4.2 Lamp
Lamp events occur when the number of lamps operating is detected
to have changed. Typically the time taken to detect a change is 4
seconds.
The names are normally abbreviated. Typically the names and their
meaning is as follows:
SS_LAMPS Sydney Side lamp stand
CS_LAMPS Country Side lamp stand
SS_TIP Tip lights on the Sydney Side boom
CS_TIP Tip lights on the Country Side boom
The state is of form "FU n" or "FD n". FU refers to the set of lamps
operating when the flasher is UP state. FD refers to the set of lamps
operating when the flasher is DOWN state. n is the number of
lamps detected as operating.
Note that if the flasher fails whilst the lamps are operating the Level
Crossing Monitor will not log a lamps event for the state to which
the flasher no longer changes too. The "FU" or "FD" event logged
may equally apply to the other flasher state even though it is not
logged.
An example of lamp log entries is as follows:
Wed 06-04-94 22:09:11.9A 2 SS_LAMPS
FU
3
Wed 06
-
04
-
9
4
22:09:12.7
A 2
SS_LAMPS
FD
Wed 06
-
04
-
94
22:09:12.7
A 4
CS_LAMPS
FU
Wed 06
-
04
-
94
22:09:13.2
A 4
CS_LAMPS
FD
Wed 06
-
04
-
94
22:10:27.9
A 2
SS_LAMPS
FD
Wed 06
-
04
-
94
22:10:27.9
A 2
SS_LAMPS
FU
Wed 06
-
04
-
94
22:10:27.9
A 4
CS_LAMPS
FD
Wed 06-04-94 22:10:27.9A 4 CS_LAMPS
FU
0
8.2.4.3 Current
Battery test current change events occur when the battery test
current has changed by more than 2.0 amps from the last logged
value.
General current change events occur based on the percentage
change specified in the expressions.
An example is:
Thu 07-04-94 03:51:01.0 A 8 B_TEST_I 7.53 amps
8.2.4.4 Temperature
Temperature change events occur based on the percentage
specified in the expressions.
An example is:
Thu 07-04-94 03:51:01.0 A 7 Ambient 28.53 degrees