Extron electronic TP T 15HD A, TP T BNC DA4 Front Panel Control and Indicators, Power connector

Installation and Operation, cont’d

TP T 15HD A

Audio

PC Computer

		CAT 5 UTP Cable
Pair	RGB video		... THEN insert a four foot
1, 2	Red		extension cable to equalize
			TP skew for red video.
4, 5	Green
7, 8	Blue

IF cable measurement indicates that the pair with wires 1 and 2 is four feet shorter than the other pairs...

TP R BNC A

LCD Projector

Unique TP T 468 front panel features

13Faceplate screws — These screws secure the faceplate to the rest of the transmitter.

Do not remove these faceplate screws while the transmitter is attached to the wall or the detached transmitter circuit board may fall down inside the wall.

14Opening for Architectural Adapter Plates — The TP T 468 can have up to four optional adapter plates attached here at one time. The adapter plates allow for a variety of connectors.

Blank plates (two single-space and one double-space plate) are included on the transmitter to cover unused spaces. Adapter plates must be ordered separately. They also must be attached to the faceplate and cabled before the interface is installed in the wall or furniture. See “Mounting the AAP devices,” earlier in this chapter.

Figure 2-20 — Pair skew equalization

If UTP cable test measurement cannot be done, pair skew can still be equalized by viewing a test pattern with a critical eye. Examine the test pattern for loss of horizontal registration and, through a process of trial and error, equalize any pair skew with coax extensions on the red, green, and/or blue outputs.

Extron skew compensation coax cables are available in lengths of 2 through 20 feet (61 cm through 6.1 meters). See appendix A for part numbers.

Power connector

12Power

TP T BNC DA4 — Plug the external 15V power supply into this captive screw connector.

If the distance between the transmitter and receiver is too great for the receiver to power the transmitter, the video image will be missing, distorted, or noisy, or the receiver’s Manual/Auto LED will flash. The transmitter requires a local 15V power supply.

	TP T 15HD A and TP T 15 HD AV— If desired or for
	distances over 300' (91.4 m), plug an external 15 VDC
	power supply into this captive screw connector. Wire
N/C	the connector as shown at left.
+15V
	Return

Front Panel Control and Indicators

All of the transmitters have front panel Power indicators. In addition, the TP T 15HD A and TP T 15HD AV have horizontal shift control.

1		2
COMPUTER	ID PIN 4 ID PIN 11 BUFFERED	PC	AUDIO
		H-SHIFT	VIDEO
AUDIO
			L	R
INPUT	LOCAL MONITOR		TP T 15HD AV

Figure 2-21 — TP T 15HD AV control and indicator

1Power/signal LED

Amber — Indicates that power is applied, but that the transmitter is not connected to a receiver.

Green — Indicates that the transmitter is properly connected to a receiver.

2H. Shift control (TP T 15HD A and TP T 15HD AV) — This front panel knob adjusts the side-to-side image placement.

The H. Shift control is a 12-turn potentiometer with a soft mechanical stop at the high or low end. When you have reached the high or low end of the adjustment, the potentiometer makes a clicking sound as you turn it, and no change is apparent on the display.

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