Audio Precision SWR-2755 Audio Switch Matrix

characteristic

• Input and output configurations switch generator output or analyzer input,or both.
• Balanced and unbalanced configurations are available.
• The LED displays the on or off status of each channel.
• Multiple switches can be connected to a single audio precision analyzer,exp system capacity to up to 192 inputs and outputs.
• Low inter-channel crosstalk,less than –150 dB at 20 kHz in the balanced configurations.
• All switches are one rack unit (RU) high (1.75). The switch can be used on a bench or in a rack,with an optional rack mount adapter kit.
• Maximum rated voltage 200 Vpk,160 Vrms
• Maximum signal power 5w or 200ma
• crosstalk
• Series resistance is generally less than 0.3 ohms per side
• The shunt capacitance is typically<90 pF from signal path to chassis (100 nF from BNC case to chassis on U version).
• Reverse terminated 604 ohms,250mw max
• Balanced 600 ohm load –136 dB 100 kHz
• Unbalanced 600 ohm load
• Power Requirements 90–250 Vac,50-60 Hz,via external dc supply module
• Temperature Range Operating 0°C to +50°C Storage –40°C to +75°C
• Humidity 80% RH to +40°C,(non-condensing)
• Dimensions 16.5 x 1.75 x 10.5 inches [41.9 x 4.4 x 26.7 cm]
• Approximately 9.9 lbs [4.5 kg]
• Regulatory Compliance
• EMC complies with FCC Part 15 Part J (Class B),89/336/EEC,92/31/EEC and 93/68/EEC,EN 50081-1(1992) Emissions Class B,EN-50082-1(1992) exemption.
• Safety complies with 73/23/EEC,93/68/EEC,EN6010-1 (1903)—IEC 1010-1 (1990) + Amendment 1 (1992) + Amendment 2 (1995). Installation category II—Pollution Degree 2.
• External power supply AP part number 4540.0020 complies with IEC 60950:1991+A1+A2+A3+A4,UL 950 third edition E183744,CSA C22.2 No. 950.
• External power supply AP part number 4540.0051 complies with IEC 60950:1991,UL60950 third edition E199447,CSA C22.2 No.,PSE J60950:1998,nomo-001-scfi-1993.
• 12×2 configuration
• the two generator output channels (A and B) to any of the 12 channels
• Up to 16 units be cascaded,allowing up to 192 channels to be accessed
• XLR connector for balanced signals,or use adapter for unbalanced signals
• Supplementary mode allows all but one channel to be driven while measuring undriven channels for worse crosstalk on multi-channel devices
• any two analyzer input channels (A and B) from any of the 12 channels
• be used as input or output switch (via dip switch on rear panel)
• Floating BNC connector for unbalanced signals prevents ground loops

Audio Precision offers three models of SWRR-2755 audio switchers that expand the 2-channel input and output capabilities of the Audio Precision 2700 Series and ATS-2 audio analyzers,as well as older System One and System Two instruments. The new switches are fully compatible with our existing products and offer better performance at a lower price. They can also be used with any discontinued product,originally designated SWRR-2122 or SWRR-122 switches. "With the same feature set and rugged integrity of the SWRR-2122,the new SWRR-2755 series brings significantly reduced string tone (18 dB better at unbalanced 600 Ω loads; 10 dB better at balanced 600 Ω loads),a new universal power supply that automatically adjusts to all line voltages,a convenient rear panel grounding lug and full EMC and Safety regulations. Key Features,Specifications,Electrical Characteristics,General Features,Options,SWR-2755M Output Switch,SWR-2755F Input Switch,SWR-2755U Unbalanced Switch.