Specifications

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