RAD Data comm ASMi-52L Specifikace stáhnout pdf (Strana 32)

Chapter 1 Introduction Installation and Operation Manual

1-4 Overview ASMi-52 Ver. 2.8

Figure

1-3. ASMi-52 Modems Operating opposite ASMi-52CD Cards

Features

Functionality

ASMi-52 can be configured to operate in a CO (central office) or CPE (customer

premises equipment) mode.

Line Interface

ASMi-52 extends the range of data transmission over 2/4-wire lines up to 7.0 km

(4.3 miles), by employing SHDSL TC-PAM technology. ASMi-52 operation complies

with the requirements of the ITU-T G.991.2 and G.826 standards. In addition,

4-wire ASMi-52 units can be configured to operate over 2-wire lines.

Table

1-1

lists typical ASMi-52 ranges over 2/4-wire 26 AWG line.

Table

1-1. Typical Ranges (26 AWG)

Data Rate 2-wire 4-wire

[kbps] [km] [miles] [km] [miles]

64 7.5 4.6 — —

128 7.0 4.3 7.1 4.4

256 6.7 4.1 6.8 4.2

384 6.5 4.0 6.7 4.1

512 6.3 3.9 6.6 4.1

1024 5.3 3.3 6.0 3.7

1536 5.0 3.1 5.6 3.5

2048 4.5 2.8 4.7 2.9

2304 4.2 2.6 4.5 2.8

4096 – – 3.7 2.3

4608 – – 3.0 1.8

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RAD Data comm ASMi-52L Specifikace Strana 32