Wiring and Device Connections
44
Instruction Manual - Enova DVX-325xHD/22xxHD All-in-One Presentation Switchers
The AxLink port can be used to supply power to downstream AxLink-compatible devices as long as the maximum current draw is
less than 0.5 Amps on the DVX-22xxHD, and 3 Amps on the DVX-325xHD. To isolate the central controller from high in-rush current,
AxLink devices, or potential power faults on the AxLink bus, it is strongly recommended that you power external AxLink devices
from an independent power supply.
NOTE:
The AxLink port provides only limited power to connected AxLink devices. It is recommended to use an alternate power source
when connecting AxLink devices to the central controller.
IMPORTANT:
The DVX CANNOT be powered via the AxLink port. The +12V pin on the AxLink connectors are designed only for voltage
output. Do NOT c12V from a power supply or the NXA-PDU to the +12V pin on the AxLink connectors, or you may
permanently damage the DVX and/or the power supply.
The DVX-325xHD has two AxLink connections. These are two connection points for the same AxLink bus. All AxLink devices
connected to the controller must have unique AxLink device numbers even if they are attached to different AxLink connection
points on the controller.
While it is one AxLink bus, the power on these two AxLink connections is controlled independently.
Refer to the following table for the wiring length information used with the central controller:
FIG. 52 provides wiring requirements for the AxLink connector:
FIG. 52
Mini-Phoenix connector wiring diagram (direct data and power)
To use the 4-pin 3.5 mm mini-Phoenix (male) captive-wire connector for data communication and power transfer, the incoming
PWR and GND cable from the 12 VDC-compliant power supply must be connected to the AxLink cable connector going to the
central controller. FIG. 53 shows the wiring diagram:
FIG. 53
4-pin mini-Phoenix connector wiring diagram (using external power source)
CAUTION:
When you connect an external power supply, do not connect the wire from the PWR terminal (coming from the external
device) to the PWR terminal on the Phoenix connector attached to the Controller unit. Make sure to connect only the AXM, AXP, and
GND wires to the Controller’s Phoenix connector when using an external power supply.
Make sure to connect only the GND wire on the AxLink/PWR connector when using a separate 12 VDC power supply. Do not
connect the PWR wire to the AxLink connector’s PWR (+) opening.
Wiring Guidelines
Wire size
Maximum wiring length
18 AWG
154.83 feet (47.19 meters)
20 AWG
98.30 feet (29.96 meters)
22 AWG
63.40 feet (19.32 meters)
24 AWG
38.68 feet (11.79 meters)
Top view
Top view
To the Controller’s
AxLink/PWR connector
To the external AxLink device
Top view
Top view
To the Controller’s
AxLink/PWR connector
To the external AxLink device
Local 12+ VDC
power supply
(coming from an
external
power supply)
