Telex BTR-300 operating instructions Battery Information, General, BC-300NM1 Battery Charger

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BATTERY INFORMATION

GENERAL

Improper battery selection, use, installation, and care are the cause of numerous wireless system failures.

Alkaline Batteries: Alkaline batteries such as Mallory’s DURACELL or Everready’s EN- ERGIZER provide the most reliable operation in wireless transceivers. The use of low cost carbon-zinc batteries is NOT recommended.

BC-300NM1 BATTERY CHARGER

NOTE: The BC-300NM1 is not supplied with the TR-300. See the “Accessory” section for ordering information.

CAUTION

DO NOT ATTEMPT TO CHARGE ANY ALKALINE BATTERIES WITH THIS CHARGER.

The BC-300NM1 will charge nickel-metal hydride batteries in a TR-300. Insert the plug from the charger into the jack on the side of the TR-300 and plug the charger into a 110 volt outlet.

Full charge of the battery pack is obtained af- ter 12 to 14 hours. A full charge will last 15-17 hours with nickel metal hydride batter- ies.

Extensive over-charging may damage or de- stroy the batteries. Please ensure the charging time does not exceed 24 hours.

Unplug the charger when not in use.

Figure 37

BC-300NM1 Battery Charger

ENERGIZER® is a registered trademark of Union Carbide Corporation.

DURACELL® is a registered trademark of Duracell Inc.

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Contents Telex Table of Contents Block Diagram of System IntroductionGeneral Description Page BTR-300 Base Station Transceiver Technical Information Specifications BTR-300Receive FeaturesFront Panel Refer to Figure Portable Enable Switches and IndicatorsPlug for Telex Unit Crophone GainPage Front Panel BTR-300 Rear Panel BTR-300 TR-300 BELT-PACK Transceiver Technical Information Specifications TR-300Jack for RTS Units Headset XLR Connector Wiring Controls and ConnectionsPlug for Telex Units External Controls, TR-300 Dynamic / Electret BTR-300 SET-UP Equipment SET-UPInternal Intercom Switches Pin Wiring for Rear Panel JacksAttaching Brackets for Rack Mounting Rack MountingAttaching 5/8-wave Antenna Wave Antenna Assembly Antenna InformationAntenna Connections FT 60cm Minimum distance FT 2m Or more Is best Remoting Antennas when Rack MountedAntenna Polarization Antenna PlacementVertically Polarized Antennas Proper Dressing of the AntennasOperating System Near Obstructions BTR-300 Antenna PlacementHeadset Microphone Select Switch Transmit SwitchLocal Headset Connection Typical Interface to Wired System Interconnection to a HARD-WIRED Intercom SystemConnecting Auxiliary Audio SYS- TEM Power ConnectionDummy Load Battery Installation DYNAMIC/ELECTRET SwitchTR-300 SET-UP Headset ConnectionPRE-WALK-THRU Checklist Local Headset Volume PowerPush to TALK/LOCK-TO-TALK Switch System OperationLow Battery/ Overmodulation Talk Indicator Lights Battery CheckHeadset Volume TR-300 OperationEnable Switches Intercom SwitchEnabling Audio Portable TransceiversAdjusting Gain Setting System Gain LevelsBTR-300 Base Station TR-300 PortableIntercom Gain System WALK-THRUAuxiliary Gain controls Auxiliary GainProblem Solution TroubleshootingBC-300NM1 Battery Charger Battery InformationBC-300NM1 Battery Charger GeneralBC-300NM2 Battery Charger BC-300NM2 Battery ChargerAccessories Customer Service Information FCC Information JAN Made in U.S.A
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