Telex operating instructions System Operation, BTR-300 Operation, Power, Local Headset Volume

SYSTEM OPERATION

BTR-300 OPERATION

POWER

If you have followed the instructions until this point, you should now be ready to turn both the TR-300 and the BTR-300 “ON”.

Place the power switch on the BTR-300 in the “ON” position. The red power on indicator light should illuminate.

OFF

ON

Figure 27

Power ON/OFF - Volume Control Knob

LOCAL HEADSET VOLUME

Adjust the volume control on the BTR-300 by rotating the volume control either clockwise or counterclockwise as required for comfort- able listening volume.

INCREASES

VOLUME

Volume

LOCAL HEADSET VOLUME

Figure 28

Volume Control - BTR-300

PUSH TO TALK/LOCK-TO-TALK SWITCH

To enable the talk function on the BTR-300, press and hold down on the talk button and begin talking. Releasing the talk button will discontinue the microphone audio. For contin- uous talk, quickly press the talk button twice. This enables the talk function as long as you want. To release the talk function press the talk button once more and the talk function will cease.

NOTE: The talk light will be illuminated whenever the talk function is activated.

TALK LIGHT

BTR-300

TalkGain O/M

Push Twice to Latch

PUSH TO TALK

LOCK TO TALK SWITCH

Figure 29

Push-to-Talk/Lock-to-Talk Switch

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