COMMUNICATIONS-APPLIED TECHNOLOGY ICRI-WFM, Setup And Operating Procedures

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Using the acoustic coupler.
The acoustic coupler is installed on a telephone handset or cellular telephone by positioning the
transducers over the speaker and microphone of the telephone.
Position the BLACK pad directly over the speaker (labeled TO EARPIECE on its cable) and secure
by stretching the elastic strap over the handset/cell phone.
Position the RED pad directly over the microphone (labeled TO MOUTH-PIECE on its cable) and
secure by stretching the elastic strap over the handset/cell phone. Based on the design of the cellular
telephone, to place an out-going call may require moving the transducers in order to access the cell
phone‘s keypad.
Lastly, plug into ICRI at jack labeled ―Telephone Interface (Coupler).‖
NOTE: The plug on the cable and the jack are “keyed”. Be sure to align the key before inserting
the plug on to the connector or the connection may be damaged.
After the plug is fully seated on the jack, the locking ring on the plug should be turned clockwise
until the ring cannot be turned further.
Set telephone‘s earphone audio to a mid-level setting following the telephone‘s instructions.
After the interconnect cable from the ICRI is connected to the telephone handset, a dial tone should
be heard in the earphones of the portable radio and in the earpiece of the "local" handset.
Dial the telephone number of another telephone.
FIGURE 25: ACOUSTIC COUPLER TO
CORDED PHONE
FIGURE 26: ACOUSTIC COUPLER
To remove the connector for cable storage, push inward on the locking ring and turn the ring counter
clockwise to release the locking mechanism. Then pull the connector straight out of the jack. Hold
the barrel of the connector rather than the cable.
Please contact C-AT for more information.