B-1
A
PPENDIX
BSPECIFICATIONS
ADSL Specifications
Standards Conformance
Basic ADSL:
ANSI T1.413 Issue II (full rate ADSL), ITU G.992.1 (G.dmt),
ITU G.992.2 (G.lite), G.994.1 (G.handshake)
Transport Protocols:
RFC 1557 (IP/ATM), RFC 2364 (PPP/ATM)
ATM Attr ibutes:
ATM Transmission Convergence,
ATM Framing (with traffic shaping), ATM SAR/AAL5,
ATM Forum UNI3.1 signalling, ATM UBR Service Class
ADSL Service
Service Type:
Full rate Discrete Multi-Tone ADSL (G.dmt),
and Splitterless ADSL (G.lite)
Data Rate:
G.dmt: 8 Mbps (downstream), 1 Mbps (upstream)
G.lite: 1.5 Mbps (downstream), 512 Kbps (upstream)
Media Type:
Simultaneous data/voice (can coexist with HPNA)
Service Provider:
Digital Subscriber Line Access Multiplexer (DSLAM)