Specifications

GEMINI
2
Traffic Outstation Handbook
667/HB/32600/000 Page 332 Issue 11
Code
Major
Index
Minor
Index
Data
Range
Description
Access
Level
LED
0 – 3
Sign
Number
0 – 31
LED
String
0 – 255
Status of the LED strings
A bit set to ‘1’ means a String
fault.
Major Index: 0 - Master Sign
1 - Slave1 Sign, etc.
Minor Index: 0 - LDB1 port1
1 - LDB1 port2
2 - LDB1 port3
3 - LDB1 port4
4 - LDB2 port1
5 - LDB2 port2
..………………
30 - LDB8 port3
31 - LDB8 port4
RO
LMD
-
-
0 – 2
Master Control Board Mode
0 = Mode Unknown
1 = Gemini Controlling Cluster
2 = Gemini Monitoring Cluster
RO
LSO
-
0 – 3
0 – 100
Luminance Setting (%)
RO
SGM
-
0 – 4
Sign
Number
0 – 4
Set Aspect / Graphic Symbol
0 = All Signs
1 = Sign 1
2 = Sign 2 etc.
Value assigned as follows :
0 = Blank
1 = Picture 1 etc.
Maint
Note 1: There are 3 bytes of fault data associated with Graphos failures.
The first byte indicates the sign number, i.e. 0 for failures reported by Gemini, 1 for
failures reported by the Master, 2 for failures reported by Slave 1, etc.
The second byte gives the Fault Number:
Gemini failures
1 - Gemini Unit is unable to communicate with the Master Sign
2 - Master Sign has replied indicating the last set message was invalid
10 - Master Sign has replied with information from additional signs
LSCU failures
3 - LSCU radar has not triggered
4 - Voltage on LDB board is missing
5 - System error on LDB board
6 - Invalid picture number in last set message
7 - Ambient light sensor failure
8 - LED failure