TELIKOU
TF-204 Four-Wire Interface
When this switch is set to the ON position. Channel A and Channel B are connected to
each other.
Rear Panel
8. 4-wire In/Out
To connect a 4-wire device to the interface, for each module, attach one set of 4-wire
output lines to one set of terminal block connectors on the TF-204 rear panel. On the
terminal block, pins 1 and 2 are for input (IN) and pins 3 and 4 are for output (OUT).
NOTICE:
In the external 4-wire link, any artificial sidetone leakage from the
TRANSMIT to the RECEIVE signal must be eliminated as much as possible.
9. Intercom Line connector
3-pin XLR female socket
The pinout of the intercom connectors is as follows:
Pin 1 --- Common (Shield)
Pin 2 --- Power (+24 VDC)
Pin 3 --- Audio
III. Installation
TF-204 adopts 19-inches 1U cabinet, and this workstation can be mounted on rack or
placed on desktop. If it is placed on desktop, it is required to adhere 4 rubber foot
pads provided with machine to four corners at the bottom of cabinet with double-face
adhesive tape.
IV Troubleshooting
Problem: System feedback (Acoustical)
Cause 1: Listen level control at this station or a remote station is set too high
Solution 1: Adjust
Cause 2: Sidetone null control at this station or a remote station is not adjusted
correctly
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