Linear SNT00048B, SNR00009A, SNR00017A User Manual

LINEAR’S MULTI-CHANNEL RECEIVERS

Linear manufactures several multi-channel receivers for use in security systems and remote switching functions requiring more than one wireless zone or output. Using one multi-channel receiver instead of several single-channel receivers enables the installer to cut installation costs and improve system performance by eliminating RF interference problems present in multiple-receiver installations.

THREE DIFFERENT TYPES OF OUTPUTS

Linear’s two- and four-channel receivers are available in three different types of output configurations: two solid-state and one relay. Certain alarm control panels and communicators require a positive voltage to tr igger. Ot her controls, especially those with end-of-line (EOL) resistors, can be triggered with a short-to-common output. All controls and communicators can be triggered with a dry contact relay output (normally open or normally closed).

“C” TYPE VOLTAGE OUTPUT

D-4C and D-4C/K

The output wires on the “C” type voltage output receivers supply a positive trigger voltage to the connected device when the receiver detects a properly coded digital RF signal from a Linear transmitter. Each output channel wire will switch from an open state to +9 volts DC when activated. The voltage outputs are current limited to 10 mA maximum at 9 VDC, 40 mA maximum into a short. See Figure 1 for a hook-up example.

“D” TYPE SHORT-TO-COMMON OUTPUT

D-4D and D-4D/K

The outputs of a “D” type short-to-common receiver are similar to a normally open switch that has one side connected to common or circuit ground. When any receiver channel is activated, the corresponding output wire will switch from an open state to 0 volts (common or circuit ground). The short-to-common outputs are current limited to a maximum of 40 mA. This is enough current to trigger most control panels with EOL resistors or drive a small relay. If driving a relay, be sure to connect a clamping diode across the relay coil. See Figure 2 for a hook-up exam ple.

NOTE: On all “C” and “D” type receivers, the common (-)

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of the receiver must be connected to the common (-) of the control panel or communicator (see Figures 1 & 2).

“R” TYPE RELAY OUTPUT

D-2R, D-2R/K, D-4R AND D-4R/K

The outputs of the “R” type receivers are isolat ed dry relay contacts. Dry contacts indicate that the switching contacts are isolated from the receiver power supply. The receivers provide normally open and normally closed contacts for each channel. The current rating of the relay outputs is 1 amp at 32 volts maximum. Do not exceed thi s rating. See Figure 3. for a hook-up example.

RECEIVER CODE SETTING

CAUTION: Transmitters and receivers should be re-coded

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by the installer prior to installation. Do not leave units set to the factory code.

Linear’s two- and four-channel receivers contain an eight-key digital coding switch recessed in the back cover of each unit.

ANTENNA

"C" TYPE

RECEIVER

CH 1CH 2

+9 WHEN TRIGGERED

VOLTAGE OUTPUT HOOK-UP

BLACK

RED

+ 12 VDC AUX OUTPUT COMMON NEGATIVE

TYPICAL CONTROL PANEL

ZONE 1 INPUT COMMON LOOP RETURN ZONE 2 INPUT

ZONES PROGRAMMED FOR VOLTAGE TRIGGER

Figure 1. Typical "C" Type Wiring

ANTENNA

"D" TYPE

RECEIVER

CH 1CH 2

COMMON WHEN

TRIGGERED

SHORT-TO-COMMON HOOK-UP

RED

BLACK

+ 12 VDC AUX OUTPUT COMMON NEGATIVE

TYPICAL CONTROL PANEL

ZONE 1 INPUT COMMON LOOP RETURN ZONE 2 INPUT

ZONES PROGRAMMED FOR E.O.L. RESISTORS

Figure 2. Typical "D" Type Wiring

ANTENNA

"R" TYPE

RECEIVER

CH 1CH 2

N/O COM COM N/C

RELAY OUTPUT HOOK-UP

RED

BLACK

+ 12 VDC AUX OUTPUT

COMMON NEGATIVE

TYPICAL CONTROL PANEL

ZONE 1 INPUT COMMON LOOP RETURN ZONE 2 INPUT

ZONES PROGRAMMED FOR E.O.L. RESISTORS

Figure 3. Typical "R" Type Wiring

The switch keys are numbered 1-8 (see Figure 4). Keys #1 and #2 are not used when coding the receiver. These keys are not connected, and their position doesn’t matter.

To set a code, select a random pattern for keys 3-8. Set the code keys with a pointed object other than a pencil or pen. In the example shown in Figure 4, keys 4, 6 an d 7 are

set to

, keys 1, 2, 3, 5 and 8 are set to

OFF

The receiver code keys 3-8 must match ex actly with code keys 3-8 in all Linear transmitters used with that receiver.

Figure 4. Example

Coding Switch

TRANSMITTER CODE SETTING

TWO- AND FOUR-CHANNEL TRANSMITTERS

To code a D-4 four-channel portable transmitter to any twoor four-channel receiver, simply match keys 3 through 8 in the transmitter to keys 3 through 8 in the receiver.

To code D-22B, D-22C, or D-22D two-channel portable transmitters to a two-channel receiver, match keys 3 through 8 in the transmitter to keys 3 through 8 in the

OFF

receiver and turn transmitter key #2 to the

IMPORTANT: When using the above two-channel

✶

transmitters with any two-channel receiver, key #2 in the transmitter must be

OFF.

position.

To code D-22B, D-22C, or D-22D two-channel portable transmitters to a four-channel receiver, match keys 3 through 8 in the transmitter to keys 3 through 8 in the receiver. If key

OFF,

#2 in the transmitter is

the transmitter will activate

receiver channels one and two. If key #2 in the transmitter is

ON,

the transmitter will activate channels three and four.

SINGLE-CHANNEL TRANSMITTERS

To code any Linear single-channel transmitter to a two- or four-channel receiver, set keys 3 through 8 in the transmitter to match keys 3 through 8 in the receiver. Keys one and two

in the transmitter determine which receiver channel will activate. Refer to Figures 5, 6, 7 and 8 for the settings of keys

one and two in the transmitter for selecting channels 1, 2, 3 and 4 respectively.

NOTE: On multi-channel receivers, only one receiver

✶

channel can be activated at a time!

1 2 3 4 5 6 7 8

O N

O F F

1 2 3 4 5 6 7 8

O N

O F F

1 2 3 4 5 6 7 8

O N

O F F

1 2 3 4 5 6 7 8

O N

O F F

Figure 5.

Transmitter Setting

for Channel One

Figure 6.

Transmitter Setting

for Channel Two

Figure 7.

Transmitter Setting

for Channel Three

Figure 8.

Transmitter Setting

for Channel Four

INSTALLATION

The receiver should be mounted on the wall above or next to the control panel. Generally, the higher the receiver is mounted above ground level, the better the radio range should be.

Use Table 1 as a guide and follow these steps to connect the receiver:

STEP 1 Connect receiver negative COMMON (-) to the

negative terminal on the 12-volt, 24-hour output from the control panel.

STEP 2 Connect receiver positive (+) to the positive

terminal on the 12-volt, 24-hour output from the control panel.

STEP 3 Connect the outputs to the zone input terminals

on the control panel (see Figures 1, 2, and 3).

STEP 4 If the control panel uses end-of-line resistors,

connect them across the receiver output for normally open loops, or in series with the receiver outputs for normally closed loops.

POWER +

POWER -

CH. 1 CH. 2 CH. 3 CH. 4

D-2R & D-4R

N/O COMMON N/C

GOLD (ON WHITE PAIR)

SILVER (ON WHITE PAIR)

BROWN 1 RED 1 ORANGE

YELLOW GREEN BLUE

VIOLET GRAY WHITE

BLACK BROWN 2 RED 2

D-4C &

D-4D

RED

BLACK

YELLOW

BROWN

GREEN

WHITE

Table 1. Installation Wiring Chart

CHECKOUT AND TEST

After installing the receiver, the system should be tested. To test the receiver, perform the following steps: STEP 1 Apply power to the control panel. Be sure the

control panel is disarmed or in a “test ” mode.

STEP 2 Trigger each of the system’s transmitters, one at

a time. Receiver activation indicates that the transmitters are operating properly and that the digital codes are correctly matched. Verify that the correct receiver channel and control panel loop is violated.

STEP 3 With portable transmitters, operate them from

various locations. This will help to locate possible null areas where structural steel, and/or certain

obstacles may interfere with transmission. If the transmitter fails to activate the receiver, first check the coding switches to see that the switch keys in the transmitter and receiver are properly matched. Next, check the battery and replace it if it is weak. Although transmitter batteries should last for a year with normal use, it is good practice to install new transmitter batteries every six months.

✶

Electronic products are no better than the inspection an d maintenance they receive over time. Therefore, Linear recommends installers should instruct their customers to test their equipment regularly, at least once a week.

SPECIFICATIONS

CODING TECHNIQUE

NUMBER OF CODES

RF CARRIER

RADIATED OUTPUT

SELECTIVITY

POWER

REQUIREMENTS

OUTPUT RATING

OPERATING

TEMPERATURE

SIZE

Pulse width A-1 modulation at 250 bits-per-second. Four 8-bit words are required for activation

64 system codes

303.875 MHz for U.S. 318 Mhz for Canada

Complies with FCC Part 15 and D.O.C. Rules

5 MHz at 5 mV input “C” and “D” Type:

11 to 24 VDC or 12 to 16 VAC Standby and operating current 15 mA typical

“R” Type: 11 to 24 VDC or 12-16 VAC Standby current 15 mA, operating 60 mA typical

“C” Type: 9 VDC out @ 40 mA maximum “D” Type: 40 mA maximum short-to-common “R” Type: Form C, 1 Amp @ 32 VDC maximum

-40 to +140° F (-40 to +60° C)

“C” and “D” Type: 4.9 x 3.8 x 1.3 inches (125 x 97 x 33 mm) “R” Type: 4.9 x 4.2 x 1.3 inches (125 x 107 x 33 mm)

LINEAR LIMITED WARRANTY

This Linear product is warranted against defects in material and workmanship for twelve (12) months. The Warranty Expiration Date is labeled on the produc t.

extends only to wholesale customers

normal distribution channels.

consumers.

dealer’s warranty, if any.

Linear corporation for consequential dama ges a rising out of or in connection with use or pe rformance of this product or other indirect dam a ges w ith respe ct to loss of property, revenue, or profit, or cost of removal, installation, or reinstallation.

implied warranties, including implied warranties for merchantability and implied warranties for fitness, are valid only until War ranty Expiration Date as labeled on the product.

ex pr ess o r implied.

For warranty service on Linear equipment return product, at sender’s expense to:

U.S.A. Canada Linear Corporation Linear Canada Inc. 2350 Camino Vida Roble,Ste.A 673 Consortium Court Carlsbad, CA 92009 London, Ontario, Canada N6E 2S8 Attention: Repairs Department Attention: Repairs Department Ph# (800) 392-0123 Ph# (519) 685-3020

Consumers should inquire from their selling dealer as to the nature of the

This Linear Corporation Warranty is in lieu of all other warranties

There are no obligations or liabilities on the part of

who buy direct from Linear or through Linear’s

Linear does not warrant this product to

This warranty

All

IMPORTANT !!!

Linear radio controls provide a reliable communications link and fill an important need in portable wireless signalling. However, there are some limitations which must be observed.

For U.S. installations only: The radios are required to comply with FCC

☞

Rules and Regulations as Part 15 devices. As such, they have limited transmitter power and therefore limited range.

Receivers may be blocked by radio signals that occur on or near their

☞

operating frequencies, regardless of code settings. A receiver cannot respond to more than one transmitted signal at a

☞

time. Infrequently used radio links should be tested regularly to protect

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against undetected interference or fault. A general knowledge of radio and its vagaries should be gained prior

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to acting as a wholesale distributor or dealer, and these facts should be communicated to the ultimate users.

2 & 4 Channel

Digital Security Receivers

D-2C, D-2C/K, D-2R, D-2R/K, D-4C, D-4C/K, D-4D, D-4D/K, D-4R, D-4R/K

Code Setting and

Installation Instructions

A NORTEK COMPANY

2055 Corte Del Nogal

Carlsbad, CA 92009

(619) 438-7000 • (800) 421-1587

CA (800) 321-1845 • FAX (619) 438-7043

Customer/Technical Service: (800) 392-0123