G.SHDSL PIM

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.

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.

For pinouts of cable connectors for G.SHDSL PIMs, see ADSL and G.SHDSL RJ-11 Connector Pinout.

To install or remove a PIM, see Replacing a PIM.

The G.SHDSL PIM has two LEDs to indicate the status of the PIM and its ports. Table 33 describes the meaning of the LED states.

Table 33: LEDs for G.SHDSL PIMs

For alarms, see the configuring and monitoring alarms information in the J-series Services Router Administration Guide.