Gai-tronics 69320-001 Voice Network Adapter (VNA) Instrukcja Użytkownika Pobierz pdf (Strona 13)

Pub. 42004-681L2A

Model 69320-001 Voice Network Adapter Page: 13 of 14

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06/04

Specifications

Electrical

Board

Power................................................................................................. 950 mA maximum @ +5 V dc ±5%

125 mA maximum @ +12 V dc ±10%

125 mA maximum @ -12 V dc ±10%

T1 Parameters

NOTE: the 69320-001 VNA is not compatible with the public switched telephone network.

Encoding.....................................................................................(Bipolar with 8 Zero Substitution) B8ZS

Framing..........................................................................................................(Extended Superframe) ESF

T1 Cabling

Cable characteristic impedance......................................................................................100 ohms nominal

Maximum cable length...............................................................................................................6,000 feet

Digital Audio - Party Line or Narrow Bandwidth Paging

Encoding.................................................................................µ-Law per CCITT Recommendation G.711

Sampling rate.................................................................................................................... 8 kHz ±32 ppm

Digital Audio - Wide Bandwidth Paging

Encoding.................................................... ADPCM 32 kbps, µ-Law per CCITT Recommendation G.726

Sampling rate encoding ...................................................................8 kHz up sampled to 16 kHz ±32 ppm

Sampling rate decoding .............................................................. 16 kHz down sampled to 8 kHz ±32 ppm

Card Rack Page Audio from one VNA to another VNA in a different Card Rack – Narrow Bandwidth

Frequency response..........................................................................................250 Hz to 3.5 kHz ±0.5 dB

Distortion..........................................................THD <2.0% @ 1,020 Hz sine wave, -10 dB ref. 1.5 Vrms

Card Rack Page Audio from one VNA to another VNA in a different Card Rack – Wide Bandwidth

Frequency response..........................................................................................250 Hz to 3.5 kHz ±0.5 dB

Distortion..........................................................THD <2.0% @ 1,020 Hz sine wave, -10 dB ref. 1.5 Vrms

Card Rack Party Audio from one VNA to another VNA in a different Card Rack

Frequency response..........................................................................................250 Hz to 3.5 kHz ±0.5 dB

Distortion..........................................................THD <2.0% @ 1,020 Hz sine wave, -10 dB ref. 1.5 Vrms

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Gai-tronics 69320-001 Voice Network Adapter (VNA) Instrukcja Użytkownika Strona 13