Zhone Technologies 900, 800, 600 manual Adpcm Server Card Specifications

ADPCM Server Card Specifications ADPCM Card

1.6ADPCM Server Card Specifications

ADPCM Card (887160)

Input Voice Channels	Can originate from any 2-wire or 4-wire voice card or from a DSO on a
	WAN (El/T1 or HDSL) interface. ∝ -law & A-law 64Kbps PCM
	compatible on a per channel basis.
Input Sub-rate Data	SRU data traffic at 19.2Kbps or less can be carried on a 24Kbps
	sub-channel.
Input BRI traffic	B channel voice traffic can be compressed at any of the configurable
	rates.
Modem Data Support	Transcoder rate: 24, 32 or 40 Kbps; Modem Data: none, up to 4.8Kbps,
	V.32 to 9.6Kbps, up to 12Kbps and V.32 bis to 14.4Kbps
Fax Support	Transcoder rate for fax: 24, 32 or 40 Kbps; none, Group II and Group
	III fax.
Voice Quality	As measured by Mean Opinion Score (MOS) analysis, a subjective
	evaluation with a range of 0 (poor quality) to 5 (good quality). Toll
	quality voice is accorded a MOS of 4.0 24Kbps transcoder rate MOS is
	3.6-3.8; 32Kbps transcoder rate MOS is 4.0-4.3 and 40Kbps transcoder
	rate MOS is 4.0-4.3
Echo Cancellation	Non provided—typically not required
Signaling	Transmitted in-band utilizing CAS transitional signaling, as per ANSI
	T1.302—1986 for 32Kbps and modified for use with 24Kbps and
	40Kbps. Note Robbed Bit Signaling Alarm Transmission, as specified
	in ANSI T1.302a-1989 is not supported.
Maximum Card Count	3 (2 active, 1 redundant)
Transcoder Operation	Compliant to G.761 Alarm Indication and Fault Handling.

Standards Compatibility

ANSI	T1.302 1989
	T1.302a 1992
	T1.303 1989
CEN	EN 500 081-1
	EN 500-092-1
	EN 60950/A2
ITU-T	G.721
	G.723
	G.726 12/90

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