AMX AVS-OP-2020-117 Manuel d'instructions Page 87

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HDMI I/O Board
81
Optima Instruction Manual
Possible Solutions
One thing to try is to use the EDID Programmer to read the EDID from the destination device (see
page 158) and to write it to the Optima 8x8 HDMI input (see page 159).
Another thing to try is to use the EDID Programmer to write an EDID that best represents the
downstream destination to the HDMI input connector. Check the “EDID Library” file at www.amx.com
(search for EDID Library) to determine if one of the custom EDID files (which are variants of base
EDIDs) meets your needs. For additional information on custom EDID files, see page 160.
Initializing InstaGate
®
Technology
InstaGate
®
technology significantly reduces latency (time required for authentication) in the matrix
switcher for HDCP negotiations with the displays in a system. The latency is typically experienced when
HDCP authenticates HDMI source and destination devices. This technology effectively “opens the gate”
by pre-authorizing the connected source and destination devices to satisfy HDCP authentication.
After the first time a sink is validated by a source, when the source is routed to that same sink, the time
required to authenticate that sink is greatly reduced and protected content is displayed with less delay.
Note: Some destination devices have a longer lag time than others between receiving a signal and
displaying that signal. Although InstaGate
®
significantly reduces latency in the matrix switcher, it
cannot reduce the inherent lag time of a device.
When the system is initially set up, each first time switch to an output must go through the lengthy
authentication process. After the initial authentication, the system “remembers” the destination device
and significantly reduces the latency.
Note: If necessary, EDID Programmer software (located on the “AMX AutoPatch CD” or at
www.amx.com) is available for re-programming the HDMI connectors (see page 155).
We recommend using either of the following procedures at installation or whenever source and/or
destination devices are changed, so that the system is primed to accept all destinations (given any
limitations on the number of sinks each source supports; see page 75).
To initialize (prime) system for InstaGate
®
technology with control panel or software:
Note: The following process can take up to as much as a minute and a half for each one-to-all
routing command to complete.* It is normal for the remaining monitors to lose content as each new
output is added.
1. Check to be sure all source and destination devices attached to the HDMI board are powered up.
2. Route each input to all of the outputs.
Or
Route each input to all of the runtime intended outputs.
* Time for initial authentication can vary noticeably for different source and destination devices.
To initialize (prime) system for InstaGate
®
technology using BCS commands:
1.
Check to be sure all source and destination devices attached to the HDMI board are powered up.
2. Plug one end of a null modem serial cable into the Control (RS-232) port on the enclosure. The
pinout for the DB-9 connector is: 5 GND to 5 GND, 2 RXD to 3 TXD, and 3 TXD to 2 RXD.
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