Telex BTR-500/600C Audio Channel Switch, Telex IN/OUT Switch, Auxiliary Switch

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Audio Channel Switch

Intercom Type Set to Telex

Selects either “IC 1 or 2" (and corresponding pins on ”IC Loop-thru"). In “Auto” position the switch allows selection of channels 1 or 2 from the beltpack.

AUDIO

CHANNEL 1

AUTO

2

Figure 23

Audio Channel Switch

Intercom Type Set to RTS

Selects RTS channel 1 or 2 on both I/C jacks (and corresponding Pins on “I/C Loop-thru”). In “Auto” position the switch allows selection of channels 1 or 2 from the beltpack.

Telex IN/OUT Switch

Intercom Type Set to Telex

Telex = OUT

Intercom is disconnected from the I/C jacks and corresponding “I/C Loop-thru” connector pins.

Telex = IN

Intercom is connected to I/C jacks and correspond- ing “I/C Loop-thru" connector pins.

Intercom Type Set to RTS

Setting of switch has no effect. All I/C jacks and corresponding “I/C Loop-thru” connector pins are active.

AUX

OFF ON

Figure 25

Auxiliary Switch

Auxiliary to I/C Switch (Program Audio)

This switch is located inside the base station. Its function is to provide a user with the ability to input a third channel of listen only audio via the “AUX” jack. This third channel of audio, usually called “Program Audio” is always heard regardless of which intercom channel the user is on. The program audio is heard only on the local base station and its beltpack.

To gain access to the switch the base station’s top cover must be taken off. Unscrew the six screws on the cover and lift off. The switch can be found be- tween the two shielded compartments (Figure 27). The switch is labeled “Aux to IC” and should nor- mally be left in the “ON” position. Unless using the “AUX” jack for program audio input. Switch to the “OFF” position if inputing program audio. The switch now disables auxilary input audio from be- ing placed on the intercom system but can be heard locally.

The auxiliary ON/OFF switch must be set to “ON” to enable input audio through the auxiliary port. The level of the program audio as heard in the back- ground of the audio channel currently switch to is controlled via the “AUX IN" level control on the front panel.

I/C

OUT TELEX IN

Figure 24

Telex In/Out Switch

Auxiliary Switch

Turns the “AUX” jack input audio on or off.

The audio out is always sent to the “Aux” jack and is unaffected by the switch position.

-13-

Code Switch (BTR-600C Only)

Allows the operator to select over 65,000 cipher codes. The beltpack’s code must match the base sta- tion’s code for audio recovery. Any combination of letters and/or numbers may be selected except 0000. The data is unencrypted when the setting is 0000.

A F 2 3

Figure 26

Code Switch

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Contents Telex Table of Contents Customer Service Information FCC Information Introduction System FeaturesGeneral Description Base Station Transceiver Front Panel Controls and ConnectionsIntercom 1 and 2 Jacks Switch set to Telex Intercom 1 and 2 Jacks Switch set to RTSBase Station Controls and Connections Rear Panel BTR-600CBTR-500/600C Specifications Auxiliary JackBeltpack Headset Jack WiringControls and Connections Beltpack Specifications Initial Equipment Set-Up UnpackingAntenna Connection Quantity DescriptonAntenna Polarization Antenna PlacementDistance between Antennas Operating System Near Obstructions Distance Between base station BeltpackKeeping Site Clear to Antenna Antenna Placement Improving Reception and Increasing RangeRF Transmit/Receive Channel Switches Base Station Set-UpLocation Rack MountingIntercom Type Switch RF Transmit Mode SwitchDual Listen Switches Audio Channel Switch Telex IN/OUT SwitchAuxiliary to I/C Switch Program Audio Auxiliary SwitchAuxiliary to I/C Switch Interconnection to a Hard-Wired Intercom SystemConnecting Base Stations Together Example Interface to an Audiocom Telex Intercom System Intercom User Station US-2000A Program SpeakersIntercom Power Supply PS15 Example Interface to an RTS Intercom SystemAuxiliary Audio Connection Power ConnectionDummy Load Code Switch TR-600C Only Connecting HeadsetRF Channel Switches and RF Transmit Mode Beltpack Set-UpBattery Installation Battery InstallationPre-Walk-Thru Checklist Power Push-to-Talk/Lock-to-Talk SwitchLocal Headset Volume System OperationDual Listen Level Intercom LevelAuxiliary Level Sidetone LevelPower/Local Headset Volume Battery CheckBeltpack Operation Push-to-Talk/Lock-to-TalkMicrophone Gain Sidetone Level ControlExample System Configurations Single Base Station Audiocom Telex SystemCurtain Director RTS Power Supply Single Base Station RTS SystemSix Base Station RTS System Example of Six BTR-500 RTS Systems used by a Production UnitEight Base Station Telex System = Beltpack Position 1 *2 = Beltpack PositionSingle Beltpack to Single Beltpack System Beltpack to Beltpack SystemExample of a TR-500 System used at a Publishing Firm System Walk-Thru Troubleshooting Tech Tips Codes Settings and the BTR600CFrequency Interaction Battery Information Intercom Systems SpecificationsAccessories and Replacement Parts Customer Service Information FCC Information JAN Made in U.S.A
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