Specifications

Installation and Operation Manual Chapter 1 Introduction
LA-210 Ver. 1.5 Overview 1-3
Ethernet Interfaces
LA-210 provides one or four half-/full-duplex, 10/100 Mbps Fast Ethernet ports,
with flow control and autonegotiation support. All ports are used for user traffic.
SHDSL Network Interfaces
LA-210 supports the following features per SHDSL line:
• Enhanced SHDSL ITU-T G.991.2 recommendation for user data rates
n × 64 kbps (n = 1..89) up to 5696 kpbs
• Uses TC-PAM 16 or TC-PAM 32 to support higher data rates for G.991.2
Annexes F and G
• SHDSL twisted pair wire-line connection with one pair (2-wires), two pairs
(4-wires), or four pairs (8-wires) of wires
• The line rate can be configured to adapt to the line condition (noise, loop
attenuation, and so on) or set to a fixed rate
• Embedded Operations Channel (EOC) according to G.991.2 recommendation.
• Typical ranges (26 AWG, noise-free) are:
Table 1-1. Typical ranges (26 AWG)
Data Rate 2-wire 4-wire 4x2-wire
[kbps] [km] [mi] [km] [mi] [km] [mi]
192 8 4.9 8 4.9 8 4.9
512 6.4 3.9 6.7 4.1 6.7 4.1
1536 5.7 3.5 6 3.7 6.5 4
2048 5.1 3.1 5.7 3.5 6.4 3.9
4096 3.9 2.4 5.1 3.1 5.7 3.5
4608 3.5 2.1 5 3 5.5 3.4
5696 2.9 1.8 4.6 2.8 5.1 3.1
11392 -- -- 2.9 1.8 4.6 2.8
17088 -- -- -- -- 3.5 2.1
22784 -- -- -- -- 2.9 1.8
Operational Mode
LA-210 can operate in Bridge or Flow mode, which can be configured by the user.
The internal bridge operates in VLAN aware and VLAN unaware modes.
Bridge Mode
In VLAN mode, VLAN stacking can be used for traffic separation between
different users or services, by defining a Service VLAN ID per customer or service.
When VLAN stacking is used, a Service VLAN tag is added to the user traffic and
removed from network traffic. Both Service VLAN ID and Service VLAN priority can
be defined.