Instruction Manual PEL-4 Precision LED Sector Light Vega Industries Ltd Aug 2018
PEL-4 Precision LED Sector Light Page 9 of 69 Manual Version V1.06
2.0 ELECTRICAL CONNECTION
2.1 Power Connection
The PEL-4 is designed to work from a nominal supply voltage of 12VDC or 24VDC.
If the supply is connected in reverse, the PEL-4 will not operate. However, the PEL-4 will
not be damaged as it is protected from reverse polarity.
Power connection details are shown below:
2.2 Hardwire Sync Connection
The hardwire sync (green wire from the Dataport) operates as a positive to negative
transition. The hardwire sync and a common ground pair can be connected between
several Vega beacons that operate from the same power supply voltage. This inter-
connection will result in the beacons and PEL-4 flash characters being synchronized.
The start of the PEL-4 flash character can be delayed between 0 and 9.9 seconds from the
sync edge should it be desirable to have a different start time to that of other beacons
connected to the synchronising wire.
Other beacon manufacturers may not use a negative transition signal and in such cases
the third-party sync signal will not be able to synchronise the PEL-4. If there is a
requirement for the PEL-4 to synchronise to another manufacturer’s beacon that uses
positive synchronization, then enquire with Vega whether a sync converter option might be
available.
2.3 DataPort
The dataport option provides the following interface connections:
Serial interface (RS232 levels by default, RS485 on request);
Remote Control/Traffic Light hardwired inputs;
PEL-4 status hardwired outputs.
Sync (bidirectional signal).
The dataport pin-out and cable colour-code are described in the following table.
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