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Total Access 1240 Installation and Maintenance Practice
1-2 61179605L5-5B
Features
The basic and security specific features of the Total Access 1240 are listed below.
Basic Features
The basic features of the Total Access 1240, include the following:
• Front access to all connections
• –48 VDC redundant power inputs
• Removable front access fan module
• Provisioning and alarm monitoring through SNMP (SNMPv2c) and local craft interface
(VT-100 Menu System)
• Dedicated Virtual Local Area Network (VLAN) for Inband Management Channel
• 24 subscriber ports (SHDSL)
• Single Ethernet 10/100Base-T uplink
• Four Virtual Circuits (VC) per port
• Strict prioritization ATM Class of Service (COS) is supported on the VCs that are configured
on each SHDSL Port.
• Learning bridge configuration
• Supports 2-wire operation supporting payload data rates of 192 kbps to 2,304 kbps in
increments of 64 kbps
• Supports 4-wire operation supporting payload data rates of 384 (2 × 192) kbps to 4,608
(2 × 2,304) kbps in increments of 128 (2 × 64) kbps
• System Configuration Archive (SCA)
• Supports the following operational environment
– NEBS GR-63-CORE
– ETSI EN 300 019-1-3 Class 3.1E
– ETSI EN 300 386 V1.3.2 (2003-5) for other than telecommunications centres (Class B)
– Temperature Hardened (–40°C to +70°C)
Security Features
The Total Access 1240 offers a number of filters that affect packets at the subscriber ingress
point. The security features are as follows:
• Local Switching: all ingress subscriber packets are forwarded to the network unless local
switching is enabled. This is a per port option.
• Ether-type Filtering: allows the ingress/egress filtering of traffic based on an Ether-type of
IP, PPPoE, or All. Packets that do not meet the provisioned Ether-type are discarded. This
option is on a per VC basis
• Destination MAC Filtering: when enabled, broadcast packets and packets destined to the
Broadband Remote Access Aggregation Server (BRAS) are forwarded. All others are
discarded.