Niles Audio MRZ-6 - Manual (Page 11)

9
Infrared Control Connections
Connecting to Room IR Sensor/Keypads Using the SENSOR Inputs
There are many ways to control your MRZ-6 system. Each location may have a different method depending upon the
level of control desired. You can choose from a basic preprogrammed keypad (RP-9 stock# FG00760), a Niles IR pro-
grammable keypad (IntelliPad stock# FG00634), or Niles IR sensors with a programmable learning remote control. One
keypad can be combined with one IR sensor within the same room. If a particular room requires two or more IR sen-
sors or two or more keypads you should install a Niles XRP6+ IR Expansion Unit (Niles stock# FG00638).
Avoiding Interference
• Avoid locating any of the cables, sensors, keypads or the MRZ-6 near any potential sources of
ElectroMagnetic Interference (EMI) such as light dimmers, speed controls for ceiling fans, electrical ballasts,
television sets, large motors, heaters or air conditioners.
Room Status Feedback Signal
• When a particular room is on, the MRZ-6 outputs a status signal on the corresponding SENSOR input.
• The Niles IntelliPad utilizes this status signal to automate room turn-on and room turn-off.
• Three Niles IR sensors (IRR4D+, IRR4S+, and TIR1+) utilize the signal to indicate the room’s on/off status.
Recommended IR Sensor/Keypad Cable
• Each room must be home run (wired directly) to its assigned SENSOR input. See Figure 14.
• The MRZ-6 connects to IR sensors and keypads using 2-conductor shielded cable with a drain wire.
Recommended cables are “data grade” cables made of two 22 gauge (or larger) conductors surrounded by
a foil shield and a bare drain (ground) wire. Data grade cable provides the capability for runs of up to 500
feet to each sensor. Examples are West Penn D291, Belden 8761 or Carol C 2516. Any 22 to 16 gauge 2-con-
ductor shielded cable with a drain wire will accommodate 150 foot runs to each sensor and is available at
your local hardware or electrical supply store.
Making the IR Sensor/Keypad Connections
• CAUTION: Power to the MRZ-6 and amplifier must be disconnected.
• For your convenience, all SENSOR input connectors on the MRZ-6 are
removable.
• Strip 3/8” of insulation from the end of each wire. Tightly twist each wire
end until there are no frayed ends.
• Insert each wire into the appropriate hole on the connector terminals
using the sensor/keypad wiring convention. Tighten the screws which lock
the wire into place. Be certain that the polarity labels on the rear of the
MRZ-6 are precisely followed.
12
V
G
N
D
D
A
T
A
Red
Drain (shield) Black
Pin 1= Red (+12v DC)
Pin 2= Bare (Ground)
Pin 3= Black (DATA)
Figure 14