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Installation
4
AXB-MIDI MIDI Interface
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.
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.
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
FIG. 3 AXlink wiring
PWR +
AXP/TX
AXM/RX
GND -
PWR +
AXP/TX
AXM/RX
GND -
AXB-MIDI Central Controller
If using power from AXlink, disconnect the wiring from the Central Controller before
wiring the AXB-MIDI.
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)
FIG. 4 Wiring AXlink with Optional 12 VDC power supply
PWR (+)
GND (-)
Local +12 VDC power supply
(coming from the PSN power supply)
PWR +
AXP/TX
AXM/RX
GND -
PWR +
AXP/TX
AXM/RX
GND -
AXB-MIDI Central Controller