
21
Transmit Audio Alignment
Enter the
Transmit alignment
mode on the IP-223 by pressing and holding the
LINE
button, then successively pressing and
releasing the
IC
button two (2) times. This displays the Tx alignment feature of the IP-223. When the telco line is taken
offhook, a 1kHz tone is generated by the IP-223.
The following steps outline the TDI Tx alignment procedure.
Step 1
Place an external meter across the Tx+/Tx- front panel terminals
Step 2
Remove the telco line from the TDI
Step 3
Enter the Tx alignment mode as indicated above.
Step 4
From the console, place the TDI in the offhook mode be pressing the offhook button
Step 5
From the front panel Tx control, adjust the 1KHz tone level to -12dB on the external meter (ignore the
IP-223 display reading).
Step 6
Place the telco line back onhook
Step 7
Restore the telco line to the TDI.
Summary of Contents for TDI
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