DMP Electronics 708 Manuale utente

708 BUS EXTENDER MODULES

Installation Guide

DESCRIPTION

RED

1 2 3 4 5 6

YEL GRN BLK

CONNECT

TO PANEL

MODEL 708

RED

1 2 3 4 5 6

YEL GRN BLK

CONNECT

TO DEVICES

MODEL 708

Model708Bus Extender Modules

allow you to increase the length

of LX‑Bus or Keypad Bus wiring

to a maximum of4,000ft while

providing immunity to wire noise.

Use708Modules in applications

such as long wire runs, noisy

environments, or where the bus run

is bundled with other wires, such as

telephone company wire.

The included pair of708modules

connect between the panel and

LX‑Bus or Keypad Bus devices.

These modules are referred

to as the Panel Moduleand

DevicesModulerespectively.

Compatibility

• All DMP XT and XR Series panels

• All DMP LX‑Bus and Keypad Bus

devices

What is Included?

• One pair of708Bus Extender

Modules in Universal Housings

• Hardware pack

1MOUNT THE MODULES

The708comes in a high‑impact plastic housing that you can

mount directly to a wall, backboard, or other ﬂat surface. For easy

installation, the back of the housing contains multiple holes that

allow you to mount themodule on a single‑gang switch box or

ring. Themodule can also be mounted in a DMP enclosure using

the standard3‑hole mounting pattern. Refer to Figure 2and

Figure 3as needed during installation.

1. Hold the plastic standos against the inside of the enclosure

side wall.

2. Insert the included Phillips head screws from the outside of

the enclosure into the standos. Tighten the screws.

3. Carefully snap the module onto the standos.

WIRE THE PANEL MODULE

2Use18to22AWG wire to connect thePanel Moduledirectly to

the Keypad Bus or use a dual‑ended4‑wire harness to connect

directly to the LX‑Bus. This connection allows the module to

communicate with the panel and receive12VDC power. For more

information about wiring, refer to Wiring Speciﬁcations. Refer to

Figure 4andFigure 5when wiring themodule.

Caution: To avoid potential equipment damage from lightning

strikes, do not run LX‑Bus, Keypad Bus, or708bus wires

underground.

Connect to the LX‑Bus

At the Panel Module, connect wires to the RED, YEL, GRN, and

BLK terminals. Connect the red, yellow, green, and black wires to

the corresponding4‑wire harness leads. Connect the other end of

the harness to the LX‑Bus header.

Connect to the Keypad Bus

At the Panel Module, connect wires to the RED, YEL, GRN, and

BLK terminals. Connect the red, yellow, green, and black wires to

panel Terminal7, 8, 9, and10respectively.

Figure 1: 708 Modules

Figure 2: Mounting Hole Locations Figure 3: Stando Installation

Mounting

holes

2 708 INSTALLATION GUIDE | DIGITAL MONITORING PRODUCTS

WIRE THE DEVICES MODULE

Observe polarity and connect a12VDC power supply, such as a Model505‑12, to Terminal1 (positive) and

Terminal6 (negative). Connect RED, YEL, GRN, and BLK Terminals from the Devices Moduleto devices

compatible with LX‑Bus or Keypad Bus connections. Refer to the appropriate module installation guide as

needed. For more information, refer to Figure 4andFigure 5.

Note: The modules should be powered by a 24‑hour power source that cannot be interrupted by a sensor

reset. It is not necessary to wire the negative power supply wire in common with the panel Terminal10

(black) wire.

3Use18‑24AWG straight, shielded, or twisted pair wire. Maximum wiring distance between the two modules

is4,000ft. Connect Terminal2,3,4,and5 from the Panel Moduleto the corresponding terminals on the

Devices Module. For more information, refer to Figure 4.

Note: The connection between the two modules is for data transfer only. Do not connect any devices or

power sources between the two modules.

CONNECT THE MODULES

RED YEL GRN BLK

1 2 3 4 5 6

CONNECT

TO PANEL

MODEL 708

1 2 3 4 5 6

MODEL 708

Devices Module

Panel Module

Balance Jumper

CONNECT

TO DEVICES

To LX-Bus or

Keypad Bus

To Devices

To 12 VDC

Power Supply

RED YEL GRN BLK

Balance Jumper

Balance Jumpers

RED

BLACK

Max 4,000 ft

Figure 4: Connecting the Modules

708 INSTALLATION GUIDE | DIGITAL MONITORING PRODUCTS 3

Figure 5: Full Wiring Diagram

1234 5 6 7 810 11 12 13 14 15 16 17 18

+B BELL GND SMK GND

RED YEL GRN BLK Z1 Z2 Z3 Z4 Z5

AC -B GND

GND

Z10+

Z10-

PROG

LX500

LX600

LX700

LX800

LX900

RED YEL GRN BLK

1 2 3 4 5 6

CONNECT

TO PANEL

MODEL 708

1 2 3 4 5 6

MODEL 708

LX-BUS

RED

BLACK

RED

BLACK

Device 708

505-12 Power Supply

LX-Bus or

Keypad Bus

Compatible

Device

Panel 708

PANEL

CONNECT

TO DEVICES

RED YEL GRN BLK

Max 4,000 ft

Designed, engineered, and

manufactured in Springﬁeld, MO

using U.S. and global components.

LT-0585 20015

708 BUS EXTENDER

MODULES

Speciﬁcations

Operating Voltage 12VDC

Operating Current

Panel 708 10mA

Device 708 10mA

Dimensions 4.50” W x 2.75” H x 1.75” D

11.43 cm W x 6.99 cm H x 4.45 cm D

Maximum Distance 4,000 ft between the two modules

Compatibility

All DMP XT and XR Series panels

All DMP LX-Bus and Keypad Bus devices

RED

1 2 3 4 5 6

YEL GRN BLK

CONNECT

TO PANEL

MODEL 708

RED

1 2 3 4 5 6

YEL GRN BLK

CONNECT

TO DEVICES

MODEL 708

INTRUSION • FIRE• ACCESS• NETWORKS

2500 North Partnership Boulevard

Springﬁeld, Missouri 65803-8877

800.641.4282 | DMP.com

ADDITIONAL INFORMATION

Wiring Speciﬁcations

DMP recommends using 18 or 22 AWG for all LX‑Bus and Keypad Bus connections. The maximum wire distance between

any module and the DMP Keypad Bus or LX‑Bus circuit is 10 feet. To increase the wiring distance, install an auxiliary

power supply, such as a DMP Model 505‑12. Maximum voltage drop between a panel or auxiliary power supply and any

device is 2.0 VDC. If the voltage at any device is less than the required level, add an auxiliary power supply at the end of

the circuit.

To maintain auxiliary power integrity when using 22‑gauge wire on Keypad Bus circuits, do not exceed 500 feet. When

using 18‑gauge wire, do not exceed 1,000 feet. Maximum distance for any bus circuit is 2,500 feet regardless of wire

gauge. Each 2,500 foot bus circuit supports a maximum of 40 LX‑Bus devices.

For additional information refer to the LX‑Bus/Keypad Bus Wiring Application Note (LT‑2031) and the 710 Bus Splitter/

Repeater Module Installation Guide (LT‑0310).

Balance the708Buses

Each708has two balance jumpers that ensure communication is balanced between the two modules. Refer to

Figure 4for balance jumper locations. Before changing module jumper settings, test the LX‑Bus or Keypad Bus to ensure

proper system communication.

For a Panel Moduleconnected to the LX‑Bus, run the Diagnostics LX‑Bus test to verify communication. For more

information about testing the LX‑Bus, refer to the Diagnostics Function section in the appropriate panel programming

guide.

For a Panel Moduleconnected to the Keypad Bus, ensure other Keypad Bus devices are working properly and check all

Panel Modulewiring connections.

If test results indicate faulty708communication, change the jumper settings as follows.

Install the jumper across the W1header on the Panel Module, then install the jumper across the W3header on the

Devices Module. If communication is still faulty, remove all four jumpers from the708modules.

Factory Jumper Settings

The708modules come installed from the factory with the jumper across the W2header on the Panel Moduleand across

the W4header on the Devices Module. Jumpers are not installed across the W1header on the Panel Module or the

W3header on the Devices Module.

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