Chapter 8: ChannelPort module hardware reference
About RS-422 grounding
Make sure to follow grounding guidelines for RS-422.
RS-422 uses differential signaling, much like balanced audio. As long as the chassis grounds of the
controller and the MediaPort share a common ground through the AC power connections, no ground
connection is needed on the RS-422 cable.
In some cases, grounding the RS-422 at one end and running a shield around the balanced pairs can
reduce noise pickup.
License options
Harmonic provides a variety of license options for the ChannelPort.
NOTE:
In Spectrum 8.0 and later, software licenses are installed only on the Spectrum
video servers.
Note that for ChannelPorts with 4 graphics layers enabled (4GL), U/D/X conversion is not included with
the DMH, DVH, and M2H licenses unless explicitly upgraded for that capability. For ChannelPorts with
8 graphics layers enabled (8GL), U/D/X conversion is included with the DMH, DVH, and M2H licenses
unless you are upgrading from a 4GL version.
NOTE:
Due to changes in the license structure, ChannelPort licenses issued for releases
7.0 and 7.1 will not have full graphics capabilities when used with release 7.2 or later.
To correct this problem, contact Harmonic Technical Assistance Center to request a new
ChannelPort license key.
Table 8-8: ChannelPort 8000 series module options
MPEG-2
DV/
DVCPRO
AVC-Intra
VC-3
ProRes
Model
Number
Play
Play
Play
Play
Play
CPT-8100
X
X
X
X
X
CPT-8200
X
X
X
X
X
Table 8-9: ChannelPort licensed features
Product
ID
SD
HD
Up, Down,
Cross
Convert,
HD/SD
Simulcast
MPEG-
2 play
DV,
DVCPRO
play
AVC-
Intra
play
VC-3
play
ProRes
play
DMH
X
X
X
X
DMS
X
X
X
M2H
X
X
X
X
VC3P
[1]
X
X
X
..............................................
1
Upgrading to this license requires that an HD license be present on the ChannelPort module.
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