The G.SHDSL PIM (Figure 40) provides
symmetric high-speed digital subscriber line (SHDSL) physical interfaces
to ATM network media types. The G.SHDSL PIM has two ports for ATM-over-SHDSL
connections.
Figure 40: G.SHDSL PIM
The G.SHDSL PIM supports the following key features:
Onboard network processor
2-port two-wire mode and 1-port four-wire mode
Programmable line rates in both modes:
2-port two-wire mode supports autodetection of line rate
and fixed line rates from 192 Kbps to 2.304 Mbps in 64-Kbps
increments.
1-port four-wire mode supports fixed line rates from 384 Kbps
to 4.608 Mbps in 128-Kbps increments.
32 virtual channels per PIM
ATM-over-G.SHDSL framing
“Dying gasp” notification
Local and remote loopback diagnostics
ITU-T G.991.2, ITU-T G.994.1, and ITU-T G.997.1 standards
compliance
Note:
Payload loopback functionality is not supported on ATM-over-SHDSL
interfaces.
