Telex BTR-300 Connecting Auxiliary Audio SYS- TEM, Dummy Load, Power Connection

Transmit

Antenna

Auxiliary

Audio Output

PUSH				PUSH
Auxiliary		Telex Communications Inc. Intercom
Audio Input			BTR-300	Loop Thru
			Transmit
Headset Mic
Dyn	Elt	Cont	Off Remote	MADE IN U.S.A.

Intercom Loop-Thru

Receive

Antenna

	Power
Volume
Speaker	AC/DC 12V
8	700 mA

DUMMY LOAD

(IF USED)

Transmit

Antenna

Auxiliary

Audio Output

PUSH				PUSH
Auxiliary		Telex Communications Inc. Intercom
Audio Input			BTR-300	Loop Thru
			Transmit
Headset Mic
Dyn	Elt	Cont	Off Remote	MADE IN U.S.A.

Intercom Loop-Thru

Receive

Antenna

	Power
Volume
Speaker	AC/DC 12V
8	700 mA

Figure 22

Connecting Two BTR-300’s

CONNECTING AUXILIARY AUDIO SYS- TEM

Connect the BTR-300 to your auxiliary audio via the Auxiliary input/output receptacles on the rear of the unit.

CONNECTING BTR-300’s

Connect the first BTR-300 to other BTR-300s by using short XLR type cables (not supplied) plugged into either of the intercom jacks. See Figure 22.

DUMMY LOAD

In the case where a wired intercom will not be used with the BTR-300, it is important that the dummy load (supplied) be installed. The dummy load should be plugged into the “In- tercom Loop-Thru” connector. See Figure 22.

NOTE: If the dummy load is not used an an- noying squeal may result that may cause dam- age to the ears.

Note that the stations need to be on different frequencies.

POWER CONNECTION

Insure the Power ON/OFF Switch on the front of the BTR-300 is in the “OFF” position. Con- nect the AC power supply cord to the BTR at the socket labeled “POWER”. Plug the power supply unit into an AC outlet.

-22-

BTR 300

POWER

AC/DC 12 OV 700mA

U

Figure 23

Connecting the Power Supply