Specifications

9
Home-Run Wiring
Ideally, all KPS and PX-603 wiring should be home-run separately to one or more KPTs, then
to the KEYPAD input on the PX-600 rear panel. This is the safest, most reliable method.
Each KPS and PX-603 should be connected to a separate connector on the KPT. If you
require more than six connections, use another KPT.
Keypad Mounting and Connection
Mount the KPS and KP3 keypads in ordinary electrical boxes or plaster rings. The bezels
of both keypads are sized for a single-gang “Decora
®” style wall plate. Use caution when
attaching the wall plates to the keypads, as the paint on the bezels of the keypads can chip.
The KPS wiring color code is shown on the back-plate of each keypad and on the rear panels
of the PX-600 and PX-603. Be certain to follow the wire color code for all connections.
Terminate the cable on the keypad first, then the KPT and PX-600. This is the best way to
avoid blowing the keypad fuse on the PX-600. All four conductors of the wire must be
connected to the keypad. Be certain that the small “nipple” of insulation often left after
stripping wire does not get caught in the screw terminal, as this is often the cause of keypads
appearing to malfunction as well as system lock-up. To avoid shorting, do not leave any of the
wires disconnected or twisted together. See the PX-603 Room Configuration DIP Switch
Setting (page 11 of this manual) and the PX-600 Installation Manual for instructions on KPS
DIP switch settings.
KP3 Wiring
KP3 keypads require six-conductor wire (24 AWG), and must be home-run directly to the
back of the PX-603. Terminate wire ends with RJ11 six-pin, six-conductor modular plugs.
Standard six-conductor wire is color coded in orange, green and blue pairs: green with white,
white with green, orange with white, white with orange, blue with white and white with blue.
With the squeeze tab of the modular connector pointing downward and the pin end of the
connector pointing away from you, crimp the plug left to right with the green, orange and blue
pairs. Diagram 1 illustrates modular plug wiring. All modular plugs should be wired and
crimped in the same color order. When using a pre-terminated cable, make sure the order is
correct on both ends.
G / W
W / G
O / W
W / O
B / W
W / B
e
u
l
B
,
e
g
n
a
r
O
,
n
e
e
r
G
Diagram 1