2 Port Phone Adapter Cisco SPA112
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Mô tả
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Subscriber line interface circuit (SLIC) |
Ring voltage: 40-90 Vpk configurable |
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Ring frequency: 20-25 Hz |
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Ring waveform: trapezoidal |
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Maximum ringer load: 5 ringer equivalence numbers (RENs) |
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On-hook voltage (tip and ring): -46 to -56V |
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Off-hook current: 18-25 mA |
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Terminating impedance: 600 ohm resistive or 270 ohm + 750 ohm |
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150 nF complex impedance |
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Frequency response: 300-3400 Hz |
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Return loss (600 ohm, 300-3400 Hz): up to 20 dB |
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Insertion loss (1 Vrms at 1 kHz): 3-4 dB |
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Total harmonic distortion (THD) (350 mV peak at 300 Hz): up to 3% |
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Idle channel noise: 72 dB (typical) |
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Longitudinal balance: 55 dB (typical) |
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Off-hook threshold (line seizure): Rdc < 1000 ohm |
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On-hook threshold (line release): Rdc >10000 ohm |
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Rdc DC supervisory range: Rdc > 450 ohm |
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Regulatory compliance |
FCC (Part 15 Class B), CE, ICES-003, A-Tick certification, Restriction of Hazardous Substances (RoHS), and UL |
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Power supply |
DC input voltage: 5V DC at 2.0A maximum |
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Power consumption: 5W |
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Switching type (100-240V) automatic |
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Power adapter: 100-240V and 50-60 Hz (26-34 VA) AC input, with 1.8m cord |
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Indicator lights and LEDs |
Phone 1, phone 2, Internet, and power |
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Dimensions (W x H x D) |
3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm) |
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Unit weight |
5.40 oz (153 g) |
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Operating temperature |
32 to 113ºF (0 to 45ºC) |
