Digital Monitoring Products XR550 Instalační příručka stáhnout pdf (Strana 12)

Digital Monitoring Products XR150/XR350/XR550 Series Installation Guide

InstallatIon

4.3 Connecting LX-Bus and Keypad Bus Devices

Connections for LX-Bus and Keypads are provided through the J8 (PROG), J14 (LX500), J9 (LX600), J15 (LX700), J17

(LX800), J19 (LX900), and J13 (XBUS) 4-pin headers. 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 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 Keypad Bus section 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 on the rst 2,500 foot circuit is 40 devices.

4. Maximum voltage drop between the 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. When

voltage is too low, the devices cannot operate properly.

For additional information refer to the LX-Bus/Keypad Bus Wiring Application Note (LT-2031).

4.4 Wireless Keypad Association

Enable Wireless Keypad Association operation on both the keypad and panel.

To enable association operation in the keypad, access the Installer Options

Menu (3577 (INST)) and select RF Survey. The keypad logo LEDs turn on Red until

association is successful.

To enable association operation in the panel, reset panel 3 times within 12 seconds.

Allow the keypad bus Transmit/Receive LEDs to turn back on between each reset.

For 60 seconds the panel listens for wireless keypads that are in the Installer

Options Menu (3577 CMD) and have not been programmed, or associated into

another panel. Those keypads are assigned to the rst open device position

automatically, starting at device 2, based upon the order in which they are

detected. The keypad logo turns Green to indicate it has been associated with the

panel.

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 panel.

Always ground the panel before applying power to any devices: The XR150/XR350/XR550 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 the Earth ground

section.

5.2 Transformer Types

Use Model 327 (16.5 Vac 50 VA) plug-in or Model 322/323 (16 Vac 56 VA), or 324/324P (16 Vac 100 VA) wire-in

transformer. Use Model 322/323 or 324/324P wire-in transformers 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 .87A of

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

5.3 J12 3-Pin Header for Transformer Types

Place the jumper on the left two pins labeled 50VA for a Maximum 2 Amp (Bell+Aux+Smoke+XBUS+LX500-LX900)

when using the Model 322/323 56VA, or 327 50VA plug-in transformer (default).

Place the jumper on the right two pins labeled 75VA for a Maximum 3 Amp (Bell+Aux+Smoke+XBUS+LX500-LX900)

when using the Model 324/324P 100 VA wire-in transformer.

Figure 5: PROG Header and LEDs

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 25 26

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