RTS RMS300 Specifiche

MODEL SPK300LTW INTERCOM SYSTEMPORTABLE SPEAKER USER STATION9300-3505-00 Rev G 09/2007

INSTALLATION8

9CHAPTER 3OPERATIONOperating Controls The table below lists the Model SPK300L operating controls. The reference numbers in the table correspond to the

OPERATION10Adjust the SidetoneTo adjust the SIDETONE control for speaker operation, do the following:1. Turn ON the speaker switch.2. Turn ON the micr

11Operating Controls4. Wire PG, 4-pin plug (Calrad #30-453, RTS # 2013-0016-00) to the external supply: Pin 1 = common, Pin 2 = external supply +. 5.

OPERATION12

13CHAPTER 4DRAWINGS

DRAWINGS14Model SPK300LNumber TitleSD2712 Schematic Diagram, CC300, page 1 of 3SD2712 Schematic Diagram, CC300, page 2 of 3SD2712 Schematic Diagram, C

iiPROPRIETARY NOTICEThe product information and design disclosed herein were originated by and are the property of Telex Communications, Inc. Telex re

1CHAPTER 1IntroductionDESCRIPTIONThe Model SPK300L, a Portable Speaker User Station, is a component used in the TW INTERCOM SYSTEM. Each User Station

Introduction2The Channel Selector Switch selects the channel on which the user will talk and listen. The headphone amplifier output drives the user&ap

3SpecificationsSpecificationsFIGURE 1. SPK300L Block DiagramAudio Line Voltage1 volt, peak (0 dBm voltage-equivalent)Average Speech Level Range-20 dBV

Introduction4Limiter Range 50 dBCarbon Mic Excitation Current10 milliamps, nominalCURRENT SOURCETransfer Ratio 5 milliamps/1.5 voltsOutput 5 milliamps

5CHAPTER 2 INSTALLATIONMECHANICAL INSTALLATIONThe Model SPK300L Portable Speaker User Station is 4.0 inches (101.6 mm) high X 8.0 inches (203.2 mm) wi

INSTALLATION6ELECTRICALPowerThe SPK300L receives electrical power from either:(1) a system power supply (26 to 32 volts DC on line connector pins 2 (+

7USER STATION CONNECTIONSRouting the TW Intercom System cables along the same ductways and pathways as power cabling can increase the noise and hum le