Dual i/o module – PRG Mbox Designer User Manual v3.6.1 User Manual
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MBOX
®
MEDIA SERVER USER MANUAL
Dual I/O Module
The function of the Dual I/O module is to provide video conversion, final dimming of the video signal, and to send 
EDID information to the Mac computer. The module also handles DMX512 and Art-Net input for the computer. 
The module functions as a "dual" unit since it provides two independent output sections. These sections are noted in 
the drawing below as "Server Output 1" and "Server Output 2."
Note:
This is intended to be an overview of the Dual I/O module components. For more information regarding module
operation, refer to
Front Panel Components
Figure 1-3: MBOX EXTREME Dual I/O Module (Front View)
Stage Outputs - The module provides three (3) stage outputs: VGA, DVI, and SDI. The intensity level of these stage 
outputs can be mastered by the Camera fixture. The stage output may also be suppressed in the case of a system 
crash.
Stage Blackout - When this switch is set to "Yes," the stage outputs will be blacked out. When active, the middle 
switch causes the preview outputs to dim in parallel with the stage outputs. The right-hand switch controls the EDID 
capture functions of the I/O module.
Preview Outputs - The module provides two (2) preview outputs: DVI and SDI. The preview outputs are for local 
monitors and are not affected by the hardware dimmer in the Dual I/O module (controlled by the intensity channel on 
the Camera fixture).
Preview Dim - When this switch is set to "Yes," the preview will mimic the stage output.
EDID Capture - This switch is used to read and capture data from any EDID (Extended Display Identification Data) 
compliant device.
Genlock In/Out - The Genlock ports are used with the Generator Lock function, which syncs all MBOX EXTREME 
servers in the system so they will begin drawing frames at the same time. Genlock Input and Output connectors are 
provided on both output sections, however, only the top pair of Genlock connectors are active. (Note that the Genlock 
Out is not a pass-thru. This output should only be used if the MBOX EXTREME server is the master for syncing (rather 
than using it as a daisy-chain port).
PREVIEW 2
A
PREVIEW 1
A
STAGE BLACKOUT
PREVIEW DIM
TM
SDI 2
B
GENLOCK 2
IN
OUT
ACTIVE
SDI 1
B
PREVIEW DIM
DVI 2
OUTPUT 2
DVI 1
OUTPUT 1
GENLOCK 1
USB
IN
OUT
RDM Rx
RDM Tx
DMX Rx
INPUT 1
DMX
Dual I/O Module
PORT 2
PORT 1
INPUT 2
ETHERNET
COMPUTER
A B
LINK
Rx
Tx
POWER
ACTIVE
USB
MODEL 20-9804-0100
EDID CAPTURE
EDID CAPTURE
VGA 2
STAGE BLACKOUT
VGA 1
Stage
Blackout
Switch
Preview
Dim
Switch
EDID Capture
Switch
LED Indicates
Active Server
LED
Indicates
USB
RGBHV (VGA)
Output to Stage
DVI
Output to
Stage
Preview
(Monitor)
Output
SDI (SD/HD)
Stage Output
Genlock
Input/Output *
DMX512
Inputs
Ethernet (Art-Net) Ports
SDI (SD/HD)
Preview Output
* Only the top set of Genlock connectors (GENLOCK 1) are connected to the Mac computer.
Server
Output 1
Server
Output 2
