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BLOCKsignalling
www.blocksignalling.co.uk
Power Supply
The controller is designed for use with a 12V DC plug-top type power supply with a
2.1mm jack connector (centre positive).
Alternatively, the power supply can be connected to the IN1 and IN2 terminals.
If a DC power supply is connected with incorrect polarity no damage will occur, but
the module will not operate.
The module will not be damaged by reverse polarity, being connected to AC rather
than DC, or input voltage up to 35V DC or 25V AC.
Normal traction current is below 0.2A for N gauge and 0.3A for OO and HO gauges
for the speeds shuttle trains are normally operated at.
The module can provide up to 0.5A of traction current, and a power supply with a
minimum output of 0.5A is recommended for Z and N gauges, 1A for OO and HO.
The output is protected against short-circuits.
Do not
use the auxiliary terminals on the back of a train controller as the module
may operate unpredictably and could be damaged. These outputs are often
unsuitable as they are designated as a fairly basic power outputs for accessories
such as points motors and may not be smooth or stable.
BLOCK
signalling
Alternative Power Supply Arrangements
(use one only)
REV1
S
REV2
COM
OUT2
OUT1
IN2
IN1
POWER
JACK
12V DC
POWER PACK
+12V
GND
Centre Pin Positive