Installation Tips
1. Follow all local electrical & building code requirements.
2. The DIR55 is usually shelf or tabletop mounted near the
source equipment (receiver, CD player etc.). The system
requires up to 12 Knoll digital infrared receivers (can be mixed
or matched), up to four single or dual emitters, an unregulated
12 VDC power supply and this DIR55 connection block.
3. The two conductor emitter wires can be extended up to
1000’. Wires can be solid or stranded, shielded or unshielded
with a minimum of 28 gauge for runs under 200’, 22 gauge for
runs under 500’ and 20 gauge for runs up to 1000’.
4. The three conductor wires to the receivers can be extended
up to 1000’. Wires can be solid or stranded, shielded or
unshielded with a minimum of 28 gauge for runs under 200’, 22
gauge for runs under 500’ and 20 gauge for runs up to 1000’.
5. Plug in the single or dual emitter(s) into any of the four 3.5
mm jack ports. If you are going to extend the emitter wire,
carefully observe polarity.
6. Connect the up to twelve Knoll digital infrared receivers into
the detachable three-position connector with the wires in
parallel. Again polarity is very important.
7. Plug in the PS1202 or other unregulated 12 VDC power
supply and the digital infrared system should be ready to go.
8. The infrared system is usually left plugged in all the time (to
an unswitched outlet) as it uses very little power.
9. Test the digital infrared system to see if it is working
properly. If it works only from a very close range or it does not
work at all, first mark where the pot adjustment is on the DIR55
blue color pot on the rear of the DIR55. This is so you can reset
it to that starting point again. Try adjusting the pot on the
connection block very slightly left and right as you are testing
the receiver with the remote control. This may require two
people. Adjust it until the maximum distance from the remote
control to the Knoll digital infrared receiver is achieved. This
should correct for the problem. If it still does not work properly,
please call Knoll Systems and ask for infrared technical support
at 1-800-566-5579. The help line is open from 7:30 a.m. to
5:00 p.m. Monday to Friday Pacific time.
Connect to
IR Receivers
12 VDC
Adjust
pot
Emitter ports
