Specifications

ASMi-52CQ Ver. 2.12 Overview C-1
Appendix C
LRSI-F-27 Module
C.1 Overview
The ASMi-52CQ-Ethernet card includes four SHDSL independent modems for four
10/100BaseT Ethernet ports. The ASMi-52CQ-Ethernet card supports full or half
duplex mode, autonegotiation, auto MDI-X and filtering at each of the
10/100BaseT Ethernet port.
The ASMi-52CQ-Ethernet card uses the LRSI-F-27 interface that has an Ethernet
Port Bridge and an SHDSL line interface for each modem. The LRSI-F-27 module
automatically learns MAC addresses on the Ethernet ports to which it is
connected. Its MAC addresses table stores up to 2048 addresses and is
automatically updated.
The ASMi-52CQ-Ethernet card supports IEEE 802.1p frames and IEEE 802.1q
frames enabling VLAN applications. It also supports a priority feature using two
queues.
Each Ethernet port has two LEDs to indicate activity and link integrity. It includes
a DIP switch to configure the port.
The SHDSL line port works with 2-wire lines and contains protections against
surge and lightning.
Versions
The ASMi-52CQ-Ethernet card is available in the following versions:
• ASMI-52CQF/ETH/2W/TB (ETSI)
• ASMI-52CQB/ETH/2W/TB (ANSI).