Digital Monitoring Products Canadian XR100 Instalační příručka stáhnout pdf (Strana 16)

Digital Monitoring Products XR100 Series Installation Guide

INSTALLATION

XR100 Series Installation Guide Digital Monitoring Products

INSTALLATION

4.3 Connecting LX-Bus and Keypad Bus Devices

Several factors determine the DMP LX-Bus™ and keypad bus performance characteristics: the wire length and gauge

used, the number of devices connected, and the voltage at each device. When planning an LX-Bus™ and keypad bus

installation, keep in mind the following information:

1. DMP recommends using 18 or 22-gauge unshielded wire for all keypad and LX-Bus circuits. Do not use

twisted pair or shielded wire for LX-Bus and keypad bus data circuits.

2. On keypad bus circuits, to maintain auxiliary power integrity when using 22-gauge wire do not exceed 500

feet. When using 18-gauge wire do not exceed 1,000 feet. To increase the wire length or to add devices,

install an additional power supply that is UL listed for Fire Protective Signaling, power limited, and regulated

(12 VDC nominal) with battery backup.

Note: Each panel allows a specic number of supervised keypads. Add additional keypads in the

unsupervised mode. Refer to the panel installation guide for the specic number of supervised keypads

allowed.

3. Maximum distance for any one bus circuit (length of wire) is 2,500 feet regardless of the wire gauge. This

distance can be in the form of one long wire run or multiple branches with all wiring totaling no more than

2,500 feet. As wire distance from the panel increases, DC voltage on the wire decreases. Maximum number

of LX-Bus devices when using the on-board LX-Bus (J22) is 25 devices on the rst 2,500 foot circuit. When

a 710 Module is added, up to 40 devices can be installed on the rst 2,500 foot circuit. See J22 LX-Bus

Expansion Connector section later in this document.

Note: Beginning with XR100 Series Level J hardware, the on-board LX-Bus now supports up to 40 devices on

the rst 2,500 foot circuit without adding a 710 Expansion Module.

Note: Do not use twisted pair or shielded wire when connecting an LX-Bus or keypad bus.

For additional information refer to the LX-Bus/Keypad Bus Wiring Application Note (LT-2031) and/or 710/710F

Installation Sheet (LT-0310).

Primary Power Supply

5.1 AC Terminals 1 and 2

Connect the transformer wires to terminals 1 and 2 on the panel. Use no more than 70 ft. of 16 gauge or 40 ft. of 18

gauge wire between the transformer and the XR100 Series.

Always ground the panel before applying power to any devices: The XR100 Series must be properly

grounded before connecting any devices or applying power to the panel. Proper grounding protects

against Electrostatic Discharge (ESD) that can damage system components. See Earth ground section 6.2.

5.2 Transformer Types

Use Model 327 (16.5 VAC 50 VA) plug-in or Model 322 (16 VAC 56 VA) wire-in transformer. Use Model 322 (16 VAC

56 VA) wire-in transformer when required by the Authority Having Jurisdiction (AHJ).

The transformer must be connected to an unswitched 120 VAC 60 Hz electrical outlet with at least 350mA

of available current. Never share the transformer output with any other equipment.

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Digital Monitoring Products Canadian XR100 Instalační příručka Strana 16