Datasheet
DSL-321B ADSL2+ Modem
Compact and Stylish Design
In order to stay out of your way and avoid clutter in your home, the DSL-321B
ADSL2+ Modem is small, lightweight, and blends nicely into its surroundings.
The ports are conveniently located at the back, so the cables can be neatly
tucked away out of sight.
Technical Speci cations
General
Device Interfaces • RJ-11 ADSL port
• Factory reset button
• RJ-45 10/100 BASE-TX Ethernet LAN port with auto
MDI/MDIX
ADSL Standards • Full-rate ANSI T1.413 Issue 2
• ITU-T G.992.2 (G.lite) Annex B
• ITU-T G.992.1 (G.dmt) Annex B
• ITU-T G.994.1 (G.hs)
ADSL2 Standards • ITU-T G.992.3 (G.dmt.bis) Annex B/J
• Annex M compatible: up to 2 Mbps upstream
• ITU-T G.992.4 (G.lite.bis) Annex B/J
ADSL2+ Standards • ITU-T G.992.5 Annex B/L/M
LEDs • Power
• DSL Link/Activity
• Status
• Ethernet Link/Activity
Functionality
ATM/PPP Protocols • Multiple protocol encapsulation over AAL5
• Logical Link Control (LLC) encapsulation
• RFC 1483, RFC 2684
• Multiple services, PPPoE, bridge, MER over single PVC
(optional)
• ITU-T I.610 OAM Principles & Functions include F4/F5
loopback
• PPP over Ethernet RFC 2516
• Internet Protocol Control Protocol (IPCP) RFC 1332
• PPP Challenge Handshake Authentication Protocol
(CHAP) RFC 1994
• Bridged Ethernet encapsulation
• VC-based multiplexing
• ATM Forum UNI3.1/4.0 PVC up to 8 PVCs
• ATM Cell Format ITU-T Rec. I.361
• ATM Adaptation Layer Type 5 (AAL5)
• ATM QoS (Traffic Shaping) UBR, CBR, rt-VBR, nrt-VBR
• PPP over ATM RFC 2364
• PPP Link Control Protocol (LCP) RFC 1661
• PPP Authentication Protocol (PAP) RFC 1334
• Microsoft PPP CHAP extensions RFC 2433
Network Protocols • Ethernet to ADSL Self-Learning Transparent Bridging • Simple Network Time Protocol (SNTP)
Traffic Shaping • PVC/VLAN port mapping (bridge mode) • IGMP snooping 32 multicast groups
Configuration/Management • Web-based GUI
• TFTP server/client
• Telnet/SSH access for configuration (optional)
• Local access via console (optional)
• ADSL/ADSL2/ADSL2+ manual selection and auto
fallback
• Log & Trace function
• RFC 1213, RFC 2662
• Web-based/TFTP firmware/configuration upgrade
• Code Lock to prevent improper firmware upgrade
through UI, TFTP, TR-069
• UPnP IGD 1.0 (optional)
• Configuration backup and restore
• Diagnostics
• SNMP v.1 and v.2c w/ MIB-I and MIB-II (optional)
• TR-069 compliant w/ ACS (optional)
RJ-11 ADSL Port
Reset Button
Power Button
RJ-45 Ethernet Port
Power Input