Chapter 7: MediaPort 7000 series hardware referenceMediaPort 7000 GPIO signal assignmentsThe GPIO connector on a MediaPort 7000 module can be connected to an external device and used tocontrol players.Figure 7-5: GPIO Signal AssignmentsNOTE: The GPIO connector on the MediaPort 7000 series module is a “female” connector.For information on configuring GPIO on a MediaPort using SystemManager, refer to“MediaPort Configuration” in the Harmonic SystemManager User Guide.About MediaPort 7000 and ChannelPort timingTiming works the same way on both MediaPort 7000 and ChannelPort modules.If reference VITC is present on the timing input of a MediaPort or ChannelPort, it will provide the timecodeinformation to any Players associated with that MediaPort or ChannelPort, unless it is overridden by aLTC connection on the Spectrum video server.If a LTC timecode source is connected to the Spectrum video server, the Spectrum video serverautomatically uses that as the timecode source for any attached Player. This setting overrides thereference VITC from the MediaPort or ChannelPort for purposes of automation. However, if the attachedPlayer is configured with a different frame rate than that of the LTC input, then its reference will not beoverridden. For example, a LTC input with a frame rate of 25 Hz would not override the reference for aplayer configured with a frame rate of 29.97 Hz.Serial control connections for a MediaPort 7000 and aChannelPortThe MediaPort 7000 and the ChannelPort modules include an RJ-45 port for RS-422 serial controlconnections with an automation system.NOTE: Because manufacturer specifications for cables, connectors and adapterscan change, always consult with your control system vendor first for the most currentinformation on interface equipment and peripherals.NOTE: Depending on the MediaPort, there can be between one and six serial controlports, each of which controls an independent DVB/ASI output. You are not required to useall available ports.On both the MediaPort 7000 and the ChannelPort, the left-most RJ-45 connector is wired for twochannels (Ch 0 and Ch 1). Harmonic supplies an RJ-45/ DB-9 splitter cable, which provides the Channel0 on one DB-9 and the Channel 1 signals on the other.156
