MZC-88 Installation Instructions Page 29
5. When connecting keypads to the KCM-1.0 as shown in Figure 16, be sure to connect the various colored CAT-5 leads
to the correct Terminals on each end. Use the same colors scheme for all zones to help reduce errors.
MKP-8.1
J-Box EZ-Pad
w/IRC
- Master -
SpeakerCraft
®
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
KEYPAD EXPANSION
ADDRESS
+RELAY
- RELAY
+12V
IR/IO
GND
485 A
485 B
Rear View
Blue
Wht-Blue
Orange
Wht-Brown
Brown
CAUTION:
Choice of colors used is
not important.
However, colors
MUST match to
terminations at each
end as shown!
(see text)
Inter-room
Twisted Pair
Cat. 5 Cable
1000' (305m) Max.
Use Twisted Pair
for 485A & 485B
Use Twisted Pair
for IR/IO & GND
Orange
Wht-Brown
Brown
Blue
Wht-Blue
485 B
485 A
GND
IR IN
+12V
485 B
485 A
GND
IR IN
+12V
EZ PAD
ZONE 1
EZ PAD
ZONE 2
KCM-1.0
Zone Input
Figure 16
Using CAT-5 Cable to Connect MKP Keypads to MZC-88
CAT-5 WITHOUT RJ45 CONNECTORS — Maximum recommended lead length with CAT-5 cable is 1000' (305m). The 3
unused leads of the CAT-5 cable can be connected in parallel, one, with each of the +12V, GND and IR/IO leads, for better
performance when using long cable lengths.
CAT-5 WITH RJ45 CONNECTORS — When using RJ45 connectors, connect the CAT-5 cable to the keypads using
SpeakerCraft model RJA-1.1 RJ45-TO-WIRE PIN ADAPTERS. (Refer to Figures 17 and 18) Insert the RJA-1.1 pins into the
keypad’s EZ-Connect Terminals and snap the levers in place. RJA1.1’s can be used at both the keypad and KCM-1.0 ends, if
desired. Be sure RJA-1.1 pin orientation is correct prior to powering up the system.
Figure 17
RJA-1.1 Adapter
Figure 18
RJA-1.1 attached to Keypad and CAT-5