8
WIR TX75 C/D Infrared Transmitter
Control Panel
Figure 6: WIR TX75 C/D PRO master rear view
POWER IN
MIC CHANNEL
SELECTOR
TX75 BUS
OUT TO
SLAVE (1)
(OR POE
INPUT)
TX75 BUS
OUT TO
SLAVE (2)
(OR POE
INPUT)
MIC
IN
CH 1 AUDIO
LEVEL INDICATOR
(YELLOW)
CH 2 AUDIO
LEVEL
INDICATOR
(YELLOW)
SLAVE TRANSMIT
POWER INDICATOR
(YELLOW)
SLAVE POWER
INDICATOR
(GREEN)
INDICATOR
LIGHTS
(ON/OFF)
MIC
ADJUSTMENT
POWER
INDICATOR
(3.3) TX75 D (3.8)
(2.3) TX75 C (2.8)
TX75 BUS IN FROM
MASTER
SLAVE TRANSMIT
STATUS INDICATOR (YELLOW)
SLAVE POWER
INDICATOR (GREEN)
INDICATOR LIGHTS
(ON/OFF)
A507
PHOENIX INPUTS
Connecting Power
WARNING: MAINS VOLTAGE MUST NOT FALL BELOW 100 VAC, 0R SYSTEM PERFORMANCE WILL BE
GREATLY REDUCED. UNIT MAY ENTER RESET MODE UNTIL POWER IS RESTORED.
1. Plug the power supply output cord into “Power In” on the WIR TX75 C/D PRO.
2. Attach a line cord to the power supply.
3. Plug the power supply into the AC outlet. TFP 046: 100-240 VAC IN, 50 / 60 Hz.
This system is designed for class 2, low-voltage wiring. Always follow local electrical codes when using low-voltage wiring.
Power over Ethernet
The WIR TX75 C/D PRO has the ability to use a POE power supply to power itself and one slave. When using POE, one of the
slave connections is used for the POE connection, and the other can be used to run one slave. See the section “Connecting
Master and Slave Units”.
Green Power
The WIR TX75 C/D PRO is equipped with a sleep/power save feature. If no audio is present on either channel for three minutes,
the transmitter will automatically go into sleep/power save mode. This mode decreases power consumption by 80 percent. Units
will automatically start up when audio is activated. This sleep/power save feature can be disabled. Contact Williams Sound for
instructions.
On power up, the WIR TX75 C/D PRO performs a self-test to detect damage due to shipping, handling, tampering or incorrect
operation. If any failure is present, green indicator lights will blink. See WIR TX75 C/D PRO Indicators table on page 12 for
instructions on how to read indicator lights.
