Chapter 4: Spectrum X hardware reference
Partial breakout cable
Harmonic provides a partial breakout cable for use with the DSUB 60 connector, which includes one
RS-422 connector, one GPIO connector, a Reference In connector, and four multi-function I/O (MFIO)
connectors.
Figure 4-14: Partial breakout cable overview
Table 4-13: Breakout cable connector use
Connector Description
RS-422 #1 Use for channel A player control with VDCP
GPIO Use for graphics control or EAS
Reference In Use for Reference video
For instructions on configuring a serial connection to control graphics, see "Configuring a Spectrum X
and ChannelPort Channel" in the Harmonic SystemManager User Guide.
For instructions on configuring GPIO, see "Configuring Spectrum X GPIO Triggers" in the Harmonic
SystemManager User Guide.
Table 4-14: MFIO connector use
MFIO connector Function in Standard
Channel mode
Function in Enhanced
Channel mode
MF# 1 Channel A AES In / Channel
A LTC In
AES In / LTC In
MF #2 Channel A LTC Out LTC Out
MF #3 Channel B AES In / Channel
B LTC In
Unused
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