N-1000-III/IV
Section 6: Wiring Requirements
Section 6: Wiring Requirements
Section 6: Wiring Requirements
Section 6: Wiring Requirements
Section 6: Wiring Requirements
6-5
6-5
6-5
6-5
6-5
6-3: Eleven Conductor Keypads
A typical Eleven Conductor Keypad uses a 2 of 7 matrix configuration where each
keypad row and column corresponds to a unique wire (Figure 6-4). When a key is
pressed, two of seven wires are activated (two of the wires are put to ground); one
wire corresponds to the key’s row and one wire corresponds to the key’s column.
For example, if the 3 button is pressed, the gray (row 1) and green (column 3)
wires are activated (put to ground). If the 8 button is pressed, the yellow (row 3)
and blue (column 2) wires are activated (put to ground).
Typical eleven conductor keypads, using Keypad Cable NC18121 or for Plenum
applications NCP18121 (maximum distance is 500' or 152 m), have the following
terminations (See Figure 6-5):
Keypad 1
Keypad 2
TB
Terminal
Wire Color
TB
Terminal
Wire Color
8
1
Brown
8
1
Brown
8
2
Blue
8
2
Blue
8
3
Green
8
3
Green
8
4
Black
8
4
Black
8
5
Gray
8
5
Gray
8
6
Purple
8
6
Purple
8
7
Yellow
8
7
Yellow
8
8
Orange
8
8
Orange
8
9
Peach/Pink
8
9
Peach/Pink
8
10
White
8
11
White
5
4
Red
5
4
Red
Refer to your keypad technical documentation for the latest information.
Figure 6-4.
Eleven Conductor Keypad 2 of 7 Matrix.
1 2
3
4 5
6
7 8
9
*
0
#
Gray
(Row 1)
Purple
(Row 2)
Yellow
(Row 3)
Brown
(Col. 1)
Blue
(Col. 2)
Green
(Col. 3)
Orange
(Row 4)
Clears entry
Enters number sequence
(1, 2, 3, #) = these items were entered