AMX AXB-MIDI AXlink Wiring Guidelines, Wiring AXlink with Optional 12 VDC power supply

Installation

PWR +			PWR +
AXP/TX			AXP/TX
AXM/RX			AXM/RX
GND -			GND -
	AXB-MIDI	Central Controller
FIG. 3 AXlink wiring

If using power from AXlink, disconnect the wiring from the Central Controller before wiring the AXB-MIDI.

AXlink Wiring Guidelines

The following table lists wire sizes and maximum lengths allowable between the AXB-MIDI and the Central Controller power supply. The maximum wiring lengths are based on 13.5 VDC @ 100 mA available at the Central Controller's power supply output cable end.

AXlink Wiring Guidelines

Wire Size Max Wiring Length

18 AWG	1,173.71 ft (357.74 m)
20 AWG	742.57 ft (226.34 m)
22 AWG	462.96 ft	(141.11 m)
24 AWG	291.83 ft	(88.95 m)

If the AXB-MIDI is installed farther away from the Central Controller than recommended, connect an optional 12 VDC power supply to the AXlink connector on the AXB-MIDI rear panel (see the Wiring AXlink with Optional 12 VDC power supply section on page 4).

Wiring AXlink with Optional 12 VDC power supply

Connect the Central Controller's AXlink connector to the AXlink connector on the rear panel of the AXB-MIDI, as shown in FIG. 4.

	PWR (+)
		Local +12 VDC power supply
		(coming from the PSN power supply)
	GND (-)
			PWR +
PWR +
AXP/TX			AXP/TX
AXM/RX			AXM/RX
GND -			GND -
AXB-MIDI		Central Controller

FIG. 4 Wiring AXlink with Optional 12 VDC power supply

Use an external 12 VDC power supply when the distance between the Central Controller and AXB-MIDI exceeds the limits described in Figure 9 or the power supply current capacity cannot

4 AXB-MIDI MIDI Interface