Extron electronic MTP 4T 15HD RS Front Panel Controls and Indicators, Skew Delay Compensation

Installation and Operation, cont’d

Receiver considerations

NEach transmitter in the assembly requires a separate receiver.

NThe receivers' buffered outputs do not provide pre- peaking control. The total recommended distance for an entire daisy chain is the same as for a single transmitter and receiver. The transmitter's Pre-Peak switch has the same affect on the recommended transmission distance for a daisy chain as for a single transmitter and receiver.

NUp to 8 receivers can be connected in series to a transmitter using the receivers' Buffered Output connectors, provided that the total distance from the transmitter’s TP output to the last receiver in the chain does not exceed the recommended distance for the resolution being used.

NSee the recommended transmission ranges in the table on page 1-4.The recommendations in the table apply equally for a single transmitter and receiver and for a transmission daisy chain. For example, the maximum suggested range for 1024 x 768 video is 300’ with Pre-Peak off and 500’ with Pre-Peak on for either one transmitter and one receiver or a transmitter and three daisy-chained receivers.

NFor daisy-chained units, the first receiver in the chain must be at least 100’ from the transmitter when the Pre- Peak switch is on.

NFor daisy-chained units, any receiver in the chain closer than 350’ may experience some form of over-peaking when the Pre-Peak switch is on.

NIf a receiver is the last receiver in a daisy chain, its end unit DIP switch setting needs to be changed. Refer to the MTP 15HD RS Series manual.

Front Panel Controls and Indicators

Figure 2-6 shows the front panel of the MTP 4T 15HD RS and its power LED.

	1
	Figure 2-6 — MTP 4T transmitter front panel
A	Power LED — Indicates power is applied to the
	MTP 4T 15HD RS.

Skew Delay Compensation

CAT 5/5e/6 TP cable can lead to registration errors between the red, green, and blue video signals. Pair skew can be measured with test equipment or identified by viewing a crosshatch test pattern with a critical eye to determine if either the red, green, or blue video image leads (appears to the left of) the other two video images.

NUnless the TP cable is changed, the skew adjustment should only need to be made once, during installation.

SEQ receiver skew compensation

The MTP 15HD RS SEQ receiver has built-in skew compensation capabilities. Refer to the MTP 15HD RS Series manual for details.

Non-SEQ receiver skew compensation

Try using the following methods to minimize or eliminate pair skew:

•Switch to Extron’s Enhanced Skew-Free A/V UTP cable.

•Add a skew compensation cable equal to the length of pair skew to the receiver’s output.

•Install an SEQ 100 15HD Skew Equalizer on the receiver’s video output and adjust the skew for the leading video image.

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