Extron Electronics TPS150 User Guide - Manual (Page 22)

Operation, cont’d
TPS150 Switching and Transmission System • Operation 3-2
Operation
Controls and Indicators
Transmitter controls and indicators
The TPT150 transmitter will not operate properly unless it is connected to a
powered TPR150 receiver.
All of the transmitter’s controls are on the front panel (figure 3-1).
INPUT SELECT
1 2 3 4 BLANK MUTE POWER
PROJECTOR
POWER VOLUME
TPT150 A/V Switcher / Twisted Pair Transmitter
2 3
7 7
4 1 6
5
Figure 3-1 — TPT150 transmitter front panel
1 Power LED — When lit, the Power LED indicates that power is applied to the
transmitter.
2 Input Select buttons — The Input 1 Select through Input 4 Select buttons
select the associated video and audio input. The selected video input is
transmitted to the receiver. The selected audio input is output locally.
If a user-specified serial command is set for an Input Select button, the
transmitter also sends that serial command to the receiver when the button is
pressed. The receiver, in turn, issues the command to the projector. See
chapter 4, “Serial Communications”, to specify the command to be sent.
The Input Select buttons are also used in conjunction with the Volume buttons
(
5
) to adjust each input’s audio level. See “Volume adjustment” on page 3-5
for more details.
3 Blank button and LED — Press the Blank button to toggle video mute on and
off. When the output is blanked, no video is transmitted to the receiver,
which, in turn, outputs a blank image. The video mute function mutes the
video signals only; the sync signal(s) are still active. The Blank LED lights to
indicate that the video is blanked.
4 Projector Power button and LED — Press the Projector Power button to
transmit one of two user-specified serial commands to the receiver, which
then issues the command to a device such as a projector. See chapter 4, “Serial
Communications”, to specify the command(s) to be sent.
The Projector Power LED lights green when the power on command is the
most recent command transmission and is unlit when the power off
command is the most recent transmission.
If a projector power on (warm-up) delay or projector power off (cool-down) is
programmed (see chapter 4, “Serial Communications”), the Projector Power
LED blinks while that delay times out. All front panel operations are disabled
during the delay.
Some projectors use the same command for power on and power off. If the
same code is specified for on and off, the Projector Power LED blinks for each
button push.