Figure 8.
HT-MSU sensor
removable
connection plug
Figure 9.
Flasher connection
on HT-MSU
14
INSTALLATION
Before you begin, make sure that all of the cables and wires, as well as the power supply cable will
reach the proposed location of the HT-MSU. Mark the cables with labels that describe where the
cable originates (rather than which terminal on the HT-MSU it connects to).
STEPS:
1) CONNECT POWER TO THE HT-MSU. CHECK LED, DISCONNECT POWER
Plug the supplied 12V DC power supply into an unswitched AC outlet. Plug the connector
into the socket marked “Power” on the HT-MSU. If the Power LED does not light, test the
unswitched AC outlet with another appliance. If the outlet tests OK, you have a defective
power supply, which must be replaced for you to continue. Once you have completed
the power supply test, unplug the power supply and continue hooking up the rest of the
wires and cables.
2) CONNECT THE SENSOR CABLE TO IR INPUT
Strip 1/4 inch of the insulation from the end of each wire.
Tightly twist the end of each wire until no frayed ends
remain. Use a small flathead screwdriver or your fingernail
to raise the locking tabs, exposing the holes on the
removable connector. Insert each wire into the appropriate
hole on the removable connector plug
(Figure 8)
and
snap the locking tab down. To help you, the connector plug
is keyed. Insert the smooth side of the connector plug into
the smooth side of the socket.
3) CONNECT ALL FLASHERS
Route the connecting wire to the HT-MSU. Connect
the 3.5mm mono plug into the corresponding SRC jack
labeled “IR Output” from the installation worksheet.
If you need to extend the wire, use a 2-conductor 16
gauge or larger
(SEE “TECH TIP ON PAGE 12).
