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AXB-DMX512
DMX512 Interface
Overview
The AXB-DMX512 creates a bi-directional DMX512-to-AxLink connection, transmitting
and receiving up to 512 DMX channels. On-board processing and memory create as
many as 96 channel groups, eight faders, and 72 presets (284 by adding extended
memory), as well as soft-patch channels. A DMX lighting board can operate in tandem
with the AXB-DMX512, generate levels for storing presets, or bypass the AXB-DMX512
for direct control of channels.
Specifications
Setting the Device DIP Switch
The 8-position DEVICE DIP switch on the front panel (FIG. 1) sets the AxLink
identification number for the AXB-DMX512. Make sure the device number matches the
number assigned in the Axcess software program.
The following table describes the values on the DEVICE DIP switch.
Terminating the Device
When using the DMX input and if this device is the last device in a chain of DMX512
devices, you must terminate the line. To terminate the device, position jumpers on
jumper pin trios JP4 and JP5 (FIG. 2):
1.
Remove the jumper that is on pins 1 and 2 of jumper trios JP4 and JP5. (Pins 1
and 2 are marked HIZ - see FIG. 3).
2.
Place the jumper on pins 2 and 3 of jumper trios JP4 and JP5. (Pins 2 and 3 are
marked TERM -see FIG. 3). This terminates the incoming DMX input with a 120
ohm resistor.
Wiring Devices to the AXB-DMX512
The AXB-DMX512 has three captive-wire connectors on the rear panel (FIG. 4) for
DMX512 transmit and receive, and AxLink.
Preparing/Connecting Captive Wires
1.
Strip 0.25 inch 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. Do not tighten the
screws excessively; doing so may strip the threads and damage the connector.
Wiring Guidelines
The interface requires a 12 VDC power to operate properly. The Central Controller
supplies power via the AxLink cable or external 12 VDC power supply. The maximum
wiring distance between the Central Controller and interface is determined by power
consumption, supplied voltage, and the wire gauge used for the cable.
FIG. 1
AXB-DMX512 (FRONT VIEW)
AXB-DMX512 SPECIFICATIONS
Power consumption 160 mA @ 12 VDC
Power supply
12 VDC
Front panel components:
LED Indicators
• AXlink LED (green and blinks to indicate AXlink communication
activity and power:
Full-Off
indicates no power is being received or the controller is
not functioning properly.
One blink per second
indicates power is active and AXlink
communication is functioning.
Full-On
indicates there is no AXlink control or activity, but power is
On.
• RX LED (red) indicates the AXB-DMX512 is receiving DMX512 data.
Corresponds to the IN and OUT ports on the rear panel.
• TX LED (red) indicates the AXB-DMX512 is transmitting DMX512
data. Corresponds to the IN and OUT ports on the rear panel.
DIP switch
• 8-position DEVICE DIP switch sets the AxLink address (Device ID)
for the AXB-DMX512.
• The DIP Switch to the right of the DEVICE DIP is reserved - no
settings are required.
Rear panel components:
DMXIN port
5-wire, captive-wire connector for receiving data.
DMXOUT port
5-wire, captive-wire connector for transmitting data.
AXlink
4-wire, captive-wire connector for data and power.
Dimensions (HWD)
1.5" x 5.5" x 5.5" (38 mm x 140 mm x 140 mm)
Enclosure
Metal with black matte finish
Mounting
Rack mounting with the optional AC-RK Accessory Rack Kit
Weight
1.1 lb (0.5 kg)
DEVICE DIP SWITCH SETTINGS
Position
1
2
3
4
5
6
7
8
Value
1
2
4
8
16
32
64
128
AXlink
DEVICE
ON
RX
TX
Device ID DIP Switch
AxLink activity LED
DMX512 (Transmit) LED
DMX512 (Receive) LED
FIG. 2
LOCATION OF TERMINATION JUMPERS (JP4-JP5)
FIG. 3
TERMINATION JUMPER PIN SETTINGS FOR JP4 AND JP5
FIG. 4
AXB-DMX512 (REAR VIEW)
COR
JP5
JP4
front
Termination Jumpers
(JP4 / JP5)
DEVICE DIP Switch
The DIP Switch located to the
right of the DEVICE DIP switch
is not used - no settings are
required, and any setting
will work.
TERM
HIZ
IN
OUT
AXlink
DAT
A
GND
GND
DAT
A
DAT
A
DAT
A
NC
DAT
A
DAT
A
DAT
A
DAT
A
NC
GND
AXP
AXM
PWR
1
2
1
2
1
1
2
2
