Honeywell CNI4 Quick Start Manual page 4

To setup external power supply
1. Remove the housing of the cable gland and route the power cable through it.
2. Connect the power cable to the 3-pin power connector on the Pulse Accumulator
board.
3. Connect the other end of the power cable to an external power source (5V to
16V, 2A peak current).
Connection to
backup power
supply
Step 3: Connect the external pulse inputs (for wall mount only)
It is possible to connect a maximum of
two external pulse inputs at TB2
(Terminal Block
Accumulator.
A 3.5 volts DC wetting voltage is
provided by each Pulse Accumulator
input channel. If the pulse channel is to
be wired to an active device, i.e.
transistor-type output, then be sure to
observe polarity.
To connect the external pulse inputs
1. Remove the housing on the cable gland and route the pulse input(s) cable through it.
2. Unplug the male 4-pin terminal block connector.
3. Connect the external input pulse wires of the cable into appropriate slot on the 4-
pin terminal block connector.
4. Reconnect the 4-pin terminal block connector.
CNI4 Quick Start Guide
Connection
to external power
supply
2) of the Pulse
3-pin connector
4