Instruction Manual PEL-4 Precision LED Sector Light Vega Industries Ltd Aug 2018
PEL-4 Precision LED Sector Light Page 10 of 69 Manual Version V1.06
protected common signal ground.
2 Pink Beacon OK Output Grounded (positive sink) when PEL-4 is
operating normally with no alarm condition.
Open-circuit when an alarm is present or
3 Grey AIS Beacon
Fail
Output Grounded (positive sink) when PEL-4 has an
alarm condition or when power is removed.
Electrically separate but logically identical to
5 White Beacon Fail Output Grounded (positive sink) when PEL-4 has an
alarm condition or when power is removed.
Electrically separate but logically identical to
6 Blue Beacon On Output Grounded (positive sink) when PEL-4 is
active. Open-circuit otherwise, or when power
Serial transmit output from the
Serial receive input to the
10 Red On/Off Input Remote Control or Traffic Light input. Its
protected common signal ground.
12 Orange
Day/Night Input Remote Control or Traffic Light input. Its
behaviour and polarity is user
The Beacon Fail and AIS Beacon Fail outputs are polyfuse-protected to 300mA maximum
current.
All other outputs, excluding the serial connections, are polyfuse-protected to 750mA
maximum current.
All hardwired inputs, excluding sync, have a 4V threshold with respect to signal ground. An
internal pull-up is permanently enabled. Do not attempt to use the internal input pull-up to
control external devices.
With the exception of the serial connections, all inputs and outputs should be limited to
30V operation with respect to signal ground.
The serial interface connections should be limited to ±7V with respect to signal ground and
are polyfuse-protected to 100mA.
The serial interface defaults to 115.2kbaud, 8 bits, no parity, 1 stop bit (8N1).