Audio Precision SWR-2755 audio microphone

Features

• Input and output configurations switch generator output or analyzer input,or both.
• Available in balanced and unbalanced configurations.
• The LED indicates the on or off status of each channel.
• Multiple switches can be connected to an audio precision analyzer,exp system capacity to up to 192 inputs and outputs.
• Low channel-to-channel crosstalk,less than -150 dB at 20 kHz in balanced configuration.
• 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 5 w or 200 ma
• li>
• Crosstalk
• Series resistors are typically<0.3 ohms per side
• The shunt capacitance is typically less than 90 pf from signal path to chassis (100 nf from bnc case to chassis on U-type).
• Reverse terminated 604 ohm,maximum 250mw
• Balanced 600 ohm load –136 dB 100 kHz
• Unbalanced 600 ohm load –124 dB 100 kHz
• 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]
• Weight approximately 9.9 lbs [4.5 kg]
• Regulatory Compliance
• EMC Complies with FCC Part 15 Subpart J (Class B),89/336/EEC,92/31/EEC and 93/68/EEC,EN 50081-1 (1992) Class B emissions,EN-50082-1 (1992) immunity.
• 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 number,pse j60950:1998,nom-001- scfi-1993.
• 12×2 configuration
• Two generator output channels (A and B) can be of any of the 12 channels
• Up to 16 units can be cascaded,allowing up to 192 channels to be accessed
• xlr connector for balanced signals,or use an adapter for unbalanced signals
• Complementary mode allows all but one channel All channels driven while measuring worst-case crosstalk on undriven channels on multi-channel devices
• Two can be routed from any of the 12 channels Analyzer input channels (a and b)
• Up to 16 units can be cascaded and up to 192 channels can be accessed
• Configuration 2 x 12
• Can be used as an input or output switch (via dip switches on rear panel)
• Floating bnc connector for unbalanced signals prevents ground loops
• Input and output configuration switchable generator output or analyzer input,or both.
• Low inter-channel crosstalk,less than –150 dB at 20 kHz in the balanced configurations.
• Maximum rated voltage 200 Vpk,160 Vrms
• Crosstalk
• The shunt capacitance is usually less than 90 pF,from Signal path to chassis (100 nF from BNC housing to chassis on U-shaped).
• Unbalanced 600 ohm load –124 dB 100 kHz
• Power requirements 90–250 Vac,50-60 Hz via external DC power module
• EMC complies with FCC Part 15 Subpart J (Class B),89/336/eec,92/31/eec and 93/68/eec,en 50081-1 (1992) Class B emissions,en- 50082-1 (1992) Immunity.
• The two generator output channels (a and b) can be routed to any of the 12 channels
• XLR connector for balanced signals,or using an adapter,unbalanced signals
• BNC unbalanced connector for preventing floating ground loops

Audio Precision offers three models of the SWR-2755 audio switcher,extending the dual-channel input and output capabilities of the Audio Precision 2700 Series and ATS-2 audio analyzers,as well as the older System One and System Two instrument. The SWR-2755 switch replaces the discontinued SWR-2122 switch. The new switches are fully compatible with our current products,delivering better performance at a lower price. They may also be used with any discontinued product originally designated SWR-2122 or SWR-122 switches.,with the same feature set and reliable integrity as the SWR-2122,the new SWR-2755 series brings significantly lower crosstalk (18dB better at unbalanced 600-u03a9 load; better at balanced 600-u03a9 under load,10 dB better),a new universal power supply that automatically regulates all line voltages,a convenient rear panel grounding lug and full electromagnetic compatibility and safety regulation compliance. Manufacturing economics allow us to offer new switchers at lower prices.,Key Features,Specifications,Electrical Characteristics,General Features,Options,SWR-2755M Output Switcher,SWR-2755F Input Switcher,SWR-2755U Unbalanced Switcher