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To ensure that genlock input and output work successfully, make sure that all devices being synchronized are configured
to refresh at identical frequencies. If the Mbox computer is set to output video with a refresh rate of 59.94Hz, then it
can only genlock to a reference sync of 59.94Hz and its output should only be connected to another device that is set to
refresh at 59.94Hz. Similarly, if you intend to synchronize Mbox video output to a video source refreshing at 50Hz, the
computer must output video with a refresh rate of 50Hz. Please note that not all video refresh rates are available on all
devices or are compatible with all devices.
CAUTION!
Both outputs of the Mac Pro computer must use the same EDID and the same resolution and frequency in
order for the genlock to work correctly. It is not possible to output at 59.94Hz from one output and 50Hz from the other
output and sync one or both outputs to genlock. Additionally, attempting to synchronize the computer's output to an
external source with a different refresh rate, however slight, will not work.
DMX AND ETHERNET
Overview
In addition to its video conversion and distribution capabilities, the Dual I/O Module also provides connections for
DMX input and Ethernet input/output. Inside the I/O Module, a circuit board separate from the video sections handles
these two functions. Although there is no configuration possible (or necessary) for these connections, there are some
important considerations when they are being used.
S T A G E B L A C K OUT
V G A 1
S T A G E B L A C K OUT
V G A 2
DMX
The Dual I/O Module has two DMX input connectors on its front panel. The I/O Module converts the two received DMX
universes into two Art-Net universes. The resulting Art-Net is placed onto the Ethernet section of the I/O Module for
distribution on any of the Ethernet connectors.
The two DMX universes are always converted to the same Art-Net universes, and this cannot be changed. The left-hand
DMX connector (Input 1) is always converted to Art-Net universe 0. The right-hand DMX connector (Input 2) is always
converted to Art-Net universe 1.
Note: Because the Mbox v4 software can use more than two universes for control, the use of the DMX inputs is only
advisable for simple shows or for auxiliary purposes.
Each DMX input connector has three indicator LEDs that show the status of the input signal. The DMX Rx indicator LED
will illuminate if a valid DMX signal is received. The RDM Rx and Tx LEDs will illuminate to show RDM activity. However,
the Mbox system does not use RDM so these LEDs can be ignored.
P R E V IE W DIM
E DID C A P T UR E
OUT P UT 1
A
B
DV I 1
P R E V IE W 1
S DI 1
P R E V IE W DIM
E DID C A P T UR E
OUT P UT 2
A
B
DV I 2
P R E V IE W 2
S DI 2
DMX Input 1
(Universe 0)
DMX Input 2
(Universe 1)
A C T IV E
US B
IN
OUT
T M
Dual I/O Module
G E NL OC K 1
DMX
A C T IV E
US B
IN
OUT
DMX R x
R DM R x
R DM T x
INP UT 1
INP UT 2
G E NL OC K 2
DMX LED
Indicators
MBOX® 2016 DUAL OUTPUT HARDWARE MANUAL
Ethernet
P OWE R
E T HE R NE T
C OMP UT E R
L INK
T x
R x
A
B
P OR T 1
P OR T 2
Ethernet LED
Ethernet LED
Indicators
Indicators
(Front)
(Rear)
25
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