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TAS 151 Telephone Network Emulator TAS 100 provides the mix of critical features required for thorough evaluation in a compact, easy-to-use package. Designers can dramatically reduce development testing time and costs. Manufacturers can detect and stop defective products before they reach the field. Product evaluators can select between data communications products based on real-life performance, not just the specification sheet. TAS 100 Series Telephone Network Emulators are designed to work with other TAS products to provide complete solutions for testing modems, fax machines, and a host of other data communications equipment. The TAS 100GT Series Automatic Modem Test Systems provide a comprehensive, automatic solution for testing and evaluating virtually all types of modems, including V.34 and V.34+. Impairments Generator Input Level Range +7.0 dBm to -23.0 dBm Output Level Range 0.0 dBm to -50.0 dBm PCM Number of Links 0-3 Sampling Rate 8.0 kHz Sample Coding none, mu-law, or A-law Position before or after analog impairments Robbed Bit Signaling Bits Affected least significant bit of every 6th PCM sample Pattern alternating 1/0 White Noise Level Calibration Choices C-message, 3.0 kHz flat, psophometric Level Range 20.0 dBrn to 90.0 dBrn Intermodulation Distortion 2nd Order Range 20 dB to 55 dB below signal 3rd Order Range 20 dB to 55 dB below signal Type expansive or compressive Frequency Shift Offset -19.75 to 19.75 Hz Phase Jitter Level Range 0.0 to 45.0 degrees p-p Frequency Range 0.0 to 300.0 Hz Gain Hits Level Range -20.0 to +6.0 dB Risetime Range 0.2 to 990 msec. Duration Range 1.0 to 20000 msec. Interval Range 0.1 to 320.0 sec. Phase Hits Level Range 0.0 to 90.0 degrees Risetime Range 0.2 to 990 msec. Duration Range 1.0 to 20000 msec. Interval Range 0.1 to 320.0 sec. Impulse Noise Type IEEE Standard Level Range 0.0 to 55.0 dB below signal Interval Range 0.1 to 320.0 sec. Calibration C-notched Amplitude Jitter Level Range 0.0 to 98.0% Frequency Range 0.0 to 300.0 Hz Single Frequency Interference Frequency Range 0.0 to 3400.0 Hz Level Range 0.0 to 50.0 dB below signal output level General Central Office Emulation Operating Modes 2-wire switched (loop start), 2-wire auto-switched, 2-wire private line 4-wire private line, 4-wire private/2-wire switched, site A 2-wire switched (*), site B 2-wire switched (*)
