Linear Switch D 8C User Manual

DESCRIPTION  
RECEIVER  
CODING  
SWITCH  
EIGHT CHANNEL RECEIVER CODE SETTING  
The Models D-8C and D-8CW are eight-channel, 12 Volt  
Locate the digital coding switch which is recessed in the  
ANTENNA  
digital UHF receivers useful in wireless security systems and  
remote control applications. Typically, the receiver is  
connected to the inputs of a hardwire alarm control panel,  
giving the control panel wireless capability.  
Each of the receiver’s eight channels controls a solid state  
output. The circuits associated with these outputs are  
normally open until activated. When activated, the outputs  
switch to ground and trigger the control panel zone (see  
Figure 1).  
A 15-inch ribbon cable exits the receiver for power and  
output connections. The D-8CW has a 10-position connector  
on the cable for easy installation to compatible control  
panels. See Figure 2 for D-8C connections and Figure 3 for  
D-8CW connections.  
center of the back of the receiver case (see Figure 2). Note  
that the coding switch has eight keys numbered 1 through 8  
(see Figure 4).  
TEST POINTS  
CAUTION! Transmitters and receivers should be  
re-coded by the installer prior to operation. DO NOT  
USE THE FACTORY SET CODE!  
Figure 4. Receiver  
Code Switch  
Example  
8
7
6
Figure 2. Rear  
View of D-8C  
Receiver  
5
4
Among the 32 possible digital codes, four codes are  
considered invalid, and should not be used. They are: all  
switch keys set to ON; all switch keys set to OFF; switch key  
set alternating ON/OFF or OFF/ON combinations.  
To set a code, select any valid combination of ON and OFF  
positions for the switch keys numbered 4, 5, 6, 7, and 8.  
Ignore keys 1, 2, and 3 in the receiver, they are  
disconnected and not used for coding; they may be set  
in any position.  
Use a pointed object (other than a pencil or pen) to set the  
keys. The ON position is when the top of the switch is down.  
The OFF position is when the top of the switch is up and the  
bottom is down.  
For example the switch shown in Figure 4 is set with the 4,  
6, and 7 keys ON, and keys 1, 2, 3, 5 and 8 OFF.  
3
2
1
O
N
O
F
CHANNEL OUTPUT WIRES  
CHANNEL 1: BROWN  
CHANNEL 2: RED  
CHANNEL 3: ORANGE  
CHANNEL 4: YELLOW  
CHANNEL 5: GREEN  
CHANNEL 6: BLUE  
F
POWER INPUT WIRES  
11-24 VDC OR 12-16 VAC  
(+) BLACK (-) WHITE  
NOTE: For coding a multi-channel transmitter to this  
receiver, consult the transmitter’s Code Setting  
Instructions or call Linear’s Technical Services  
Department for assistance.  
CHANNEL 7: PURPLE  
CHANNEL 8: GRAY  
TYPICAL CONTROL  
E-O-L RESISTORS WIRED  
PANEL TERMINALS  
TO LOOP COMMON FOR  
ANY ZONES THAT NEED THEM  
ZONE 1  
POSITIONS #1-8  
EQUAL  
CHANNELS #1-8  
#9 (-) COMMON  
#10 (+) 11-24 VDC  
OR 12-16 VAC  
NEGATIVE  
CHANNEL 1 - BROWN  
Depending upon the transmitter model, the coding switch  
may be accessed by removing the battery cover plate, or it  
may be necessary to disassemble the transmitter case.  
On the coding switch of each single-channel transmitter  
used with this receiver, the keys numbered 4 through 8 in  
the transmitter must be set to the exact same code as  
keys 4 through 8 in the receiver.  
To complete the transmitter coding, decide which receiver  
channel the transmitter should activate. Then set the  
transmitter keys numbered 1, 2, and 3 to the desired  
channel as shown in Table 1.  
ZONE 2  
CHANNEL 2 - RED  
ZONE 3  
CHANNEL 3 - ORANGE  
NEGATIVE  
CHANNEL 4 - YELLOW  
ZONE 4  
CHANNEL 5 - GREEN  
ZONE 5  
CHANNEL 6 - BLUE  
NEGATIVE  
CHANNEL 7 - PURPLE  
D-8C  
ZONE 6  
CHANNEL 8 - GRAY  
Figure 3.  
D-8CW  
Connector  
Details  
ZONE 7  
10 POSITION  
CONNECTOR  
(AMP# 1-640442-0)  
RECEIVER  
NEGATIVE  
ZONE 8  
The code set on keys 4, 5, 6, 7, and 8 on the receiver must  
now be matched in all transmitters used with the system.  
P
M
A
COMMON (-) WHITE  
NEGATIVE  
7
6
POWER (+) BLACK  
+12 VDC AUX  
TRANSMITTER CODE SETTING  
2
1
.100" CENTER  
Following is the procedure for coding a Linear single-channel  
HEADER ASSEMBLY  
.025" SQUARE POSTS  
(AMP # 1-640452-0)  
(NOT INCLUDED)  
transmitter to an eight-channel receiver.  
Figure 1. Normally Open Outputs Connected to Control  
Panel  
 

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