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Total Access 1240 Installation and Maintenance Practice
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.
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