Ensemble Designs 5155 Dual Analog Video, TLS, AES DA - Manual (Page 2)

MODULE OVERVIEW
The 5155 Dual Analog Video /AES DA module provides analog distribution of composite
video signals, NTSC and PAL and AES audio. The 5155 is a dual distribution amplifier
with two inputs; each input distributed to four outputs.
Input signal validity is displayed locally and can be monitored through the Avenue remote
control options. Gain can be adjusted locally as well as remotely. Remote control is
accessed via the optional Avenue Touch Screen Control Panel and Avenue PC Control
Applications.
Each input signal passes through an input buffer circuit then goes on to the gain adjust
circuitry as shown in the block diagram below. Overall gain can be adjusted locally with
the trim pot on the module front panel or remotely with one of the remote applications as
explained in the Front Panel Controls and Indicators section of this data pack.
Power is derived from the ± 12 volt frame power. It is regulated to the required +5 volts
for the module by on-board regulator. The module is fused with a resettable fuse device. If
the fuse opens due to an overcurrent condition, the module will lose power. After pulling
the module, the fuse will reset automatically requiring no replacement fuse.
The on-board CPU can monitor and report the module ID information (slot location,
software version and board revision) and signal presence detection which can be reported
by the optional frame System Control module to the optional interfaces available.
Model 5155 Dual Analog Video/AES DA
Ch A
Input
Ch A
Outputs
Gain
Adjust
Ch B
Input
Ch B
Outputs
Gain
Adjust
1
2
3
4
1
2
3
4
5155 Dual Analog Video DA Functional Block Diagram
5155-2