AMX MET-7 Specifications download pdf (Page 28)

Wiring and Connections

Metreau Keypads

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.

Using AxLink for Data with an Auxiliary Power Supply

Use an auxiliary 12 VDC power supply when the distance between the controller and server exceeds the limits

described in the AxLink Wiring Guidelines. Connect only the GND (-) wire on the AxLink connector when

using an auxiliary 12 VDC power supply.

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

keypad, as shown in FIG. 20.

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. 2 AxLink straight-thru wiring

FIG. 3 AxLink and 12 VDC power supply wiring diagram

PWR (+)

AXP

AXM

GND (-)

Metreau keypad

NetLinx Controller

PWR (+)

AXP

AXM

GND (-)

12 VDC power supply

PWR (+)

AXP

AXM

GND (-)

Metreau keypadNetLinx Controller

PWR (+)

AXP

AXM

GND (-)

PWR (+)

GND (-)

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 83 84

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AMX MET-7 Specifications Page 28

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