1-Port G.shdsl 8-Wire Mini-Physical Interface Module Key Features - Juniper SRX Series Manual

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1-Port G.SHDSL 8-Wire Mini-Physical Interface Module Key Features
The 1-Port G.SHDSL 8-Wire Mini-Physical Interface Module (Mini-PIM) provides the following key features:
2-wire (4-port 2-wire) mode, 4-wire (2-port 4-wire) mode, and 8-wire (1-port 8-wire) mode support
Annex A, Annex B, Annex F, and Annex G support
Virtual circuits per Mini-PIM (8 maximum)
Asynchronous Transfer Mode (ATM) over G.SHDSL framing
ATM class-of-service (CoS) support
ATM Operation, Administration, and Maintenance (OAM) support
Dying Gasp support
Dying Gasp is the ability of the device to automatically notify the service provider digital subscriber line
access multiplexer (DSLAM) if a power failure occurs. The customer premises equipment (CPE) sends a
message to the DSLAM, which indicates that a line was lost because of loss in CPE power.
Wetting current support
Wetting current is a small amount of electrical current sent from the central office (CO) over the copper
pair to the CPE to prevent the erosion of the copper wires. Some service providers also use wetting
current as a method for identifying cable pairs, and they therefore need to recognize and receive wetting
current. Additionally, wetting current can be used to power devices such as repeaters and low power
devices.
Noise margin support
Point-to-Point Protocol over ATM and PPPoE over ATM encapsulation support
Local loopback mode support
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