Audio Precision SWR2755F SWR2755M音频开关盒
AP | SWR-2755 音频测试开关|AudioPrecision|音频开关厂商名称： AP |AudioPrecisionAudio Precision offers three models of the SWR-2755 audio switchers, which expand the 2-channel input and output capabilities of Audio Precision 2700 series and ATS-2 audio analyzers, as well as older System One and System Two instruments.SWR-2755 switchers replace the current SWR-2122 switchers, which have been discontinued. The new switchers are entirely compatible with our current products and offer better performance at a lower price.Built with the same feature set and solid integrity of the SWR-2122, the new SWR-2722 series bring significantly lower crosstalk (18 dB better in an unbalanced 600 Ω load; 10 dB better in a balanced 600 Ω load), a new universal power supply that automatically adjusts to all line voltages, a convenient rear-panel ground lug and full EMC and safety regulatory compliance. Manufacturing economies enable us to offer the new switchers at a significantly lower price.Key features* Input and output configurations enable switching of generator outputs or analyzer inputs, or both. * Balanced and unbalanced configurations are available. * Multiple switchers can be connected to an Audio Precision analyzer, expanding the system capability to as many as 192 inputs and outputs. * Low inter-channel crosstalk, less than –150 dB at 20 kHz in the balanced configurations. * All switchers are one rack unit (RU) high (1.75"). switchers can be used on the bench or rack mounted with an optional rack mount adapter kit.Specs Electrical Characteristics * Max Voltage Rating 200 Vpk, 160 Vrms * Max Signal Power 5 W or 200 mA* Crosstalk Balanced 600 ohm load –150 dB @ 20 kHz–136 dB @ 100 kHz Unbalanced 600 ohm load–138 dB @ 20 kHz–124 dB @ 100 kHz* Series resistance typically <0.3 ohm per side * Shunt capacitance typically <90 pF, from signal path to chassis (100 nF from BNC shell to chassis on U versions). * Reverse termination 604 ohm, 250 mW maximum General Characteristics* 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 Ibs [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) Emissions Class B, 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 No. 60950, PSE J60950:1998, NOM-001-SCFI-1993. m.13510100387.b2b168.com
