AMX MET-7 Especificaciones descargar pdf (Pagina 28)

Wiring and Connections

Metreau Keypads

AxLink Wiring Guidelines

Metreau keypads require 12 VDC power to operate properly. The necessary power is supplied via the AxLink

cable. The maximum AxLink wiring distance is determined by power consumption, supplied voltage, and the

wire gauge used for the cable.

The following table lists wire sizes and the maximum lengths allowable based on the maximum power

consumption rating of 170 mA.

The maximum wiring lengths for using AxLink power are based on a minimum of 13.5 volts available.

Preparing Captive Wires

You will need a wire stripper, and flat-blade screwdriver to prepare and connect the captive wires.

1. Strip 0.25 inch (6.35 mm) of wire insulation off all wires.

2. Insert each wire into the appropriate opening on the connector according to the wiring diagrams and

connector types described in this section.

3. Turn the flat-head screws clockwise to secure the wires in the connector.

AxLink Data and Power Connections

Connect the NetLinx Controller’s AxLink connector to the AxLink connector on the rear panel of the Metreau

keypad for data and 12 VDC power as shown in FIG. 19.

Wiring Guidelines at 170 mA

Wire Size Maximum Wiring Length

18 AWG 690.42 feet (210.43 m)

20 AWG 436.80 feet (133.13 m)

22 AWG 272.33 feet (83.00 m)

24 AWG 171.66 feet (52.32 m)

Do not over-torque the screws; doing so can bend the seating pins and damage the

connector.

FIG. 19 AxLink straight-thru wiring

PWR (+)

AXP

AXM

GND (-)

Metreau keypad (or other AxLink device)

NetLinx Controller

PWR (+)

AXP

AXM

GND (-)

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 85 86

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AMX MET-7 Especificaciones Pagina 28