Niles iC2 Manual page 18

5) 12V Output and Relay Wiring: The HT-MSU has three 12V and three "Dry Contact
Closure" Relay Outputs that can activate mechanical devices such as motorized drapery
and projection screen systems, as well as a number of other automation devices. For
each device these outputs will control, standard 22 gauge 2-conductor cable ("zip-
cord") can be used. Niles Accessory Cables (FG00724 or FG00933) can also be used
(SEE THE ACCESSORIES SECTION FOR MORE INFORMATION).
6) IR Sensor Wire: The HT-MSU has
an infrared (IR) sensor input for
connection to any type of Niles
IR sensor. Niles IR sensors utilize
4-conductor wiring and have been
designed for use with CAT-5 cable
(4-pair twisted) (Figure 10).
7) Expansion Cable: The HT-MSU has
an Expansion connection that can be
used to extend the built-in RF radio
away from the HT-MSU and/or for
connection to and "sharing" sources
with future Niles multizone receivers
(SEE SYSTEM CONFIGURATION
#3 IN THE SYSTEM DESIGN
CONSIDERATIONS SECTION). This
cable must be CAT-5 terminated with
RJ45 connectors (T568A TERMINATION
PROTOCOL IS SHOWN IN THE INSTALLATION SECTION 7).
PROGRAMMING PREPARATIONS AND WORKSHEET
The HT-MSU has a PC Configuration/Expansion port on the bottom edge that is used for configuring
(programming) the system. The use of this port for configuration will be based on one of the
following scenarios:
1) If the HT-MSU is being used by itself, the PC Configuration/Expansion port will be empty
and used to program the system (Figure 11).
2) If your iC2 System design involves a Radio Frequency Gateway (RFG), CAT-5 cable will
already be plugged into the PC Configuration/Expansion port and that cable would be
plugged into the "Keypad" connection port of the RFG. Connect a CAT-5 cable to the "System"
connection port of the RFG. Programming the iC2 System and the RFG is now accomplished
"through" the RFG (Figure 12).
16
Figure 10.
Home run the sensor
cable from the sensor
to the HT-MSU
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