Con Trols And Con Nec Tions - Telex RadioCom TR-300 Operating Instructions Manual

FRONT PANEL (Re fer to Fig ure 3)
Power ON/OFF Switch: Push this switch
once to turn power ON; push it again to turn
the power OFF.
Power ON In di ca tor: The Power ON light is
il lu mi nated when the Power ON/OFF Switch
is pushed in the ON Po si tion.
Lo cal Head set Con nec tor: 4 Pin XLR Con -
nec tor for In put/Out put. The head set jack will
ac cept many Telex model head sets. Com pat i -
ble with other intercom head sets with four pin
XLR con nec tors that are wired as shown in
Fig ure 2.
1
Fig ure 2
Head set XLR Con nec tor Wiring
Lo cal Head set Vol ume: Ad justs vol ume to
Lo cal Head set. DOES NOT AF FECT MI -
CRO PHONE GAIN.

CON TROLS and CON NEC TIONS

4
3
2
Mic On-Push-to-Talk/Lock-to-Talk Switch:
En ables the lo cal head set mi cro phone au dio
func tion.
NOTE: DOES NOT con trol base sta tion RF
transmit.
Lo cal Push-to-Talk In di ca tor: Will be il lu -
mi nated when ever the talk func tion is on.
Lo cal Mi cro phone Gain Con trol and
Overmodulation In di ca tor: A screw driver
ad just able con trol is pro vided to con trol the
in put level of the lo cal head set mic. This in put
is pro tected from over loads by means of a gain
com pres sor whose op er a tion is sig naled by the
gain light in di ca tor.
Por ta ble En able Switches and In di ca tors:
When in the "IN" po si tion, the En able
switches al low the user of the cor re spond ing
por ta ble unit to be heard by oth ers con nected
to the sys tem. When in the "OUT" po si tion,
the re spec tive por ta ble will be muted, but this
por ta ble will still be able to hear all other se -
lected remotes and in ter faces. The in di ca tors
(Por ta ble Trans mit On) nor mally show the
pres ence of a por ta ble trans ceiver in use on the
chan nel cor re spond ing to that in di ca tor.
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