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5.7
Installation Guidelines
Here are a few guidelines to keep in mind when installing the COM2000 system that will
minimize the potential problems that the system could be expected to encounter.
The optimum RF levels at the input of a SWiM module are -30 to -50 dBm per
transponder.
The optimum RF input levels for the COM46 cards are -25 to -45 dBm per transponder.
It is required that a DIRECTV AIM RF meter be used to verify all satellite signal levels and
quality. All satellite transponders must pass the EIV test on the AIM meter.
COM46 cards can only be connected to a SWiM module, they will not support a
multi-switch.
COM46 and COM46-FLX cards contain 8 tuners and must be supplied with a dedicated
SWiM output.
The COM2000 system is designed to operate properly in ambient environments of 104 °F
(40°C) or less.
The system will not be capable of streaming any video on any channel besides 100 until the
COM46 cards have been authorized by DIRECTV. Channel 100 may be viewed by any TV by
setting the security option to “none” from the Overview tab.
The system integrator must provide a mapping of TV channels to COM46 slots and
tuners.
The COM2000 will generally be preconfigured, including the appropriate RF and IP
connections to a QAM6 edge QAM device.
Any necessary DIRECTV SWiM units should be supplied by the System Integrator.
The COM2000 System is quite different from the stacked DIRECTV set-top box (STB)
receivers traditionally used in L&I rack installations. This is because the COM2000 does
not natively decode any audio or video, instead relying upon other devices in the
system to decode and display the MPEG streams it produces. Furthermore, the COM2000
does not have a native user interface although it can be controlled and configured through
the built in web server.
Controlling and monitoring the COM2000 requires a device with an Ethernet connection
and a web browser. We have found Chrome to be the best web browser to interface with the
COM2000. The COM2000 only supports a direct wired Ethernet connection.
