Installation guide

u CONNECT AUDIO SOURCE
Determine the length of the audio cable needed to connect to the sound system to the WIR TX90 transmitter.
Install the supplied Phoenix connector on the end of the audio cable to be connected to the transmitter. See the
b
ack of the WIR TX90 for wiring instructions.
The WIR TX90 will accept line level, balanced or unbalanced audio inputs. If you wish to operate in single chan-
nel mode, plug the audio cable with the installed Phoenix connector in “Channel A” OR the “Channel B” connec-
tor. If you choose to operate in two channel mode, plug the audio cables with Phoenix connectors in both “Channel
A” AND “Channel B” connector. NOTE: By default, the WIR TX90 is set to operate in two-channel mode. To
turn Channel A or Channel B on/off, refer to the instructions Selecting a Channel, below.
u SELECTING
A
CARRIER FREQUENCY PAIR
The WIR TX90 offers two sets of carrier frequencies for Channel Aand Channel B:
2.3 and 2.8MHz or 3.3 and 3.8MHz.
The WIR TX90 is preset to 2.3 and 2.8 MHz, which are the most commonly used. Move the slide switch to select
a pair of operating frequencies.
u SELECTING A CHANNEL
To activate a channel, press the “CHANNEL” button until the channel “ON” indicator lights. For example, to oper-
ate only channel A, press the “CHANNEL” button until only the channel A “ON” indicator lights. To operate both
channel A and B, press the “CHANNEL” button until both “ON” indicators light.
Note: If you’re only using one channel, make sure the other channel is turned off to maximize system coverage.
FIGURE 9: AUDIO SOURCE CONNECTIONS
7
Pow er on Indicator
FIGURE 10