Table of Contents
Advertisement
CHAPTER 2
Programming the DTMF Address Decoder
To program the 41632 DTMF Address Decoder, perform the following steps. A unique DTMF
code must be assigned to the Orderwire so only that Orderwire responds to the call.
1.
Switch, SW-5, should be set for the number of digits in your code (i.e., 1, 2, 3, or 4
digits). Be sure you have only one setting selected.
2.
Switches SW1 through SW4 correspond to digits 1-4 of your code. SW1 through
SW4 are found on the module from right to left, when viewing the board from the
front. Digit 1 – 4 on the switch are labeled from left to right, corresponding to
switch positions 1 – 4. You will need to refer to the chart below to program the
correct codes.
ON
1
Desired
DTMF
Digit
0
1
2
3
4
5
6
7
8
9
All Call (*)
All Clear (#)
A
B
C
D
Example Drawing:
3-digits
O
1
2
3
4
O
N
N
SW5
TIMED CA
INSTALLING and SETTING UP THE SNI SHELF
2
3
4
Switch Positions
1 = on, 0 = off
1
2
3
0
1
0
1
0
0
0
1
0
1
1
0
0
0
1
1
0
1
0
1
1
1
1
1
0
0
0
1
0
0
1
1
0
0
0
1
1
0
1
0
1
1
1
1
1
0
0
0
Null / Off
1
2
3
4
SW4
DIGIT 4
Example:
The code chosen for this unit is 180.
1. Set SW1 to "1" (on-off-off-off)
2. Set SW2 to "8" (off-off-off-on)
4
1
3. Set SW3 to "0" (off-on-off-on)
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
"0"
O
1
2
3
4
O
1
N
N
SW3
DIGIT 3
6
"8"
"1"
2
3
4
O
1
2
N
SW2
SW1
DIGIT 2
DIGIT 1
3
4
Advertisement
Table of Contents
