ATLAS 550 System Manual

 

Section 2, Engineering Guidelines

 

 

 

 

 

 

 

 

Table 33. Specifications

(Continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

Application

Feature

Specification

 

 

 

 

 

 

 

 

Voice Compression

 

 

 

 

 

 

Algorithm

Voice Compression Module

 

 

 

 

G.723.1 or Netcoder (proprietary)

 

 

 

 

ADPCM-32 Module

 

 

 

 

 

G.711, G.726 (16K/32K),

 

 

 

 

 

Transparent (proprietary)

 

 

 

 

 

 

 

 

 

Number of channels supported

Up to 32 compression channels

 

 

 

 

 

 

 

 

 

PCM coding

µ-Law, A-Law (future)

 

 

 

 

 

 

 

 

 

 

Fax support

9600 bps

 

 

 

 

 

 

 

 

 

 

Modem Support

G.711, Transparent

ADPCM 32

 

 

 

(ADPCM-32 Module only)

V.34 @ 28.8 bps

V.32 @ 14.4 bps

 

 

 

The rates shown at the right

FAX @ 14.4 bps

FAX @ 14.4 bps

 

 

 

 

 

 

 

 

are maximum rates. Under

ADPCM 16

 

 

 

 

certain conditions, these rates

V.21 @ 300 bps

 

 

 

 

may not be realized.

V.22 @ 1200 bps

 

 

 

 

 

FAX NOT RECOMMENDED

 

 

 

 

 

 

 

 

 

DTMF generation and

TIA 464A

 

 

 

 

detection

 

 

 

 

 

 

 

 

 

61200305L1-1F

© 2002 ADTRAN, Inc.

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ADTRAN 1200305L1 system manual Specifications Application Feature Voice Compression, Adpcm