Linear D-8C manual Description, Eight Channel Receiver Code Setting, Transmitter Code Setting

DESCRIPTION

The Models D-8C and D-8CW are eight-channel, 12 Volt

RECEIVER CODING

EIGHT CHANNEL RECEIVER CODE SETTING

Locate the digital coding switch which is recessed in the

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).

Figure 2. Rear

View of D-8C

Receiver

SWITCH

ANTENNA

TEST POINTS

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).

CAUTION! Transmitters and receivers should be re-coded by the installer prior to operation. DO NOT USE THE FACTORY SET CODE!

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

Figure 4. Receiver

Code Switch

Example

O

1 N

3

2

O

5 4

8

7

6

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.

CHANNEL OUTPUT WIRES CHANNEL 1: BROWN CHANNEL 2: RED CHANNEL 3: ORANGE CHANNEL 4: YELLOW CHANNEL 5: GREEN CHANNEL 6: BLUE CHANNEL 7: PURPLE

POWER INPUT WIRES

11-24 VDC OR 12-16 VAC

(+) BLACK (-) WHITE

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.

F F

NOTE: For coding a multi-channel transmitter to this receiver, consult the transmitter’s Code Setting

D-8C

RECEIVER

E-O-L RESISTORS WIRED TO LOOP COMMON FOR ANY ZONES THAT NEED THEM

CHANNEL 1 - BROWN

CHANNEL 2 - RED

CHANNEL 3 - ORANGE

CHANNEL 4 - YELLOW

CHANNEL 5 - GREEN

CHANNEL 6 - BLUE

CHANNEL 7 - PURPLE

CHANNEL 8 - GRAY

COMMON (-) WHITE

POWER (+) BLACK

TYPICAL CONTROL

PANEL TERMINALS

ZONE 1

NEGATIVE

ZONE 2

ZONE 3

NEGATIVE

ZONE 4

ZONE 5

NEGATIVE

ZONE 6

ZONE 7

NEGATIVE

ZONE 8

NEGATIVE +12 VDC AUX

10POSITION CONNECTOR (AMP# 1-640442-0)

1

.100" CENTER HEADER ASSEMBLY

CHANNEL 8: GRAY

						POSITIONS #1-8
						EQUAL
						CHANNELS #1-8
							#9 (-) COMMON
							#10 (+) 11-24 VDC
								OR 12-16 VAC	Figure 3.
									D-8CW
			MP					10	Connector
							9
			A	6	7	8			Details
			5
2	3	4

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.

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.

TRANSMITTER CODE SETTING

Following is the procedure for coding a Linear single-channel

Instructions or call Linear’s Technical Services Department for assistance.

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

Figure 1. Normally Open Outputs Connected to Control

Panel

.025" SQUARE POSTS (AMP # 1-640452-0)

(NOT INCLUDED)

transmitter to an eight-channel receiver.

transmitter keys numbered 1, 2, and 3 to the desired channel as shown in Table 1.