RAD Data comm 4-Wire Symmetrical VDSL Modem ASM-60 Manual de usuario descargar pdf (Pagina 14)

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RAD Data Communications 2009 Catalog

•

SHDSL line repeaters for operation over

2-wire or 4-wire lines

•

Based on the SHDSL standard for higher

speeds and longer loop ranges

•

Locally or remotely powered

•

Available as a desktop unit or in IP-67

casing for installation in communication

ducts

•

Fully manageable via DSL link

•

High quality, high performance

For latest updates visit www.rad.com

D S L M O D E M S

•

Data rates of 4, 6 and 10 Mbps

•

Range up to 2 km (1.2 miles) over

24 AWG cable

•

Reliable performance over poor quality

or noisy lines

•

Digital interfaces: built-in IP router,

Ethernet bridge

•

Setup and monitoring via ASCII terminal

Using symmetrical VDSL technology, ASM-60

operates at rates up to 10 Mbps over 4-wire

lines. The ASM-60 extends the range of digital

equipment up to 2 km (1.2 miles) over 24 AWG

(0.5 mm) 4-wire copper cable. This eliminates

the need for optical cable in the Last Mile (Local

Loop) or in the campus network environment.

The ASM-60 compensates for line impairments

and mixed cabling by using advanced

equalization, adaptive filtering, echo cancellation

technology, and QAM line coding.

Setup, control and monitoring of status and

diagnostic information can be performed using an

ASCII terminal connected to the async control port.

The ASM-60 is available as a standalone unit,

which can be mounted in a standard 19-inch

rack using special hardware. Two ASM-60 units

can be mounted side-by-side.

ASM-60

4-Wire Symmetrical VDSL-Based Modem

LAN LAN

4-wire 10 Mbps

ASM-60 ASM-60

2 km (1.2 miles)

For latest updates visit www.rad.com

S-RPT, S-RPT/4W

SHDSL or SHDSL.bis Repeaters

The S-RPT and S-RPT/4W extend the

transmission range of modems using SHDSL or

SHDSL.bis (TC-PAM 16) line coding. Even though

SHDSL/SHDSL.bis modems provide superior

reach and noise immunity in comparison with

other DSL technologies, the maximum range of

these modems in simple point-to-point (LTU-

NTU) configurations is not sufficient for some

applications:

•

DSL links alongside railways, pipelines, power

lines, and waterways

•

DSL transport to remote concentrators in rural

areas

•

Military applications

The S-RPT and S-RPT/4W repeaters, using

TC-PAM 16 line coding, operate over 2-wire or

4-wire lines accordingly. The units support line

rates from 192 kbps to 5.7 Mbps and fully

regenerate the signal for increasing the

transmission distance. The devices can be

managed locally via an ASCII terminal, or

remotely from the central SHDSL equipment,

using standard EOC messages.

ASMi-52/

ASMi-54

S-RPT

SHDSL/

SHDSL.bis

E1

SHDSL/

SHDSL.bis

S-RPT

ASMi-52/

ASMi-54

SHDSL/

SHDSL.bis

ETH

ASMi-52/

ASMi-54

SDH/

SONET

S-RPT

SHDSL/

SHDSL.bis

E1

SHDSL/

SHDSL.bis

S-RPT

ASMi-52/

ASMi-54

SHDSL/

SHDSL.bis

ETH

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