Specifications

GEMINI
2
Traffic Outstation Handbook
667/HB/32600/000 Page 74 Issue 11
5.2.3 50/60 Hz Operation
Applicable To: OMCU and C/P
6
Set up 50/60Hz operation selection
5.2.3
The Outstation can operate with 50Hz or 60Hz mains’ supplies, for export purposes.
The mains timing reference circuit is provided by the Outstation power supply unit in
most applications.
If the Processor PCB is added as an upgrade to an old style OMCU, then refer to
section 5.8 for further details.
5.2.4 120/230V AC Operation
Applicable To: OMCU only
7
Set up 120/230V AC operation selection
5.2.4
If the Outstation is connected to a 110V/120V supply then a wire link is required on the
supply input connector (PL1 on supply unit) between pins 4 and 5 to provide the correct
mains timing reference for ZXO.
The power supply itself operates from 85V to 265V AC and therefore needs no further
modification.
PSU Connectors
Note 1: Connection to these two inputs is only necessary if there is no associated LMU
I/O card.
Note 2: High voltage inputs 1 and 2 replace the function of inputs 1 and 2 of the first
LMU I/O card.
Note 3: The state of these inputs can be displayed using the MSI 0 command (see
section 13.4).
Note 4: To connect the High Voltage input 2 on an ELV controller - allowing a Serial
OMU to report Lamp Supply status to the RMS Instation if the serial link to the
controller fails or is unplugged - see ELV Lamp Supply Monitor Kit
667/1/32612/000 (details on drawing 667/GA/32612/000).
HIV
Return
HIV No.
1
HIV No.
2
Neutral
5
6
7
8
9
10
Link for
110V
1
2
3
4
EXT
Power
Earth
Live
PSU Connector Pinout 5-1