RAD Data comm FOMi-T1 Bedienungsanleitung PDF herunterladen (Seite 10)

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RAD Data Communications 2011 Catalog

FOM-5A

Asynchronous Fiber Optic Modem

FOM-5A is a miniature fiber optic

modem used for local data distribution,

connecting full or half duplex async computers

and terminals. A pair of modems ensures

integrity of data transmission over multimode

fiber optic cables for distances up to 3 km

(1.9 miles) at data rates up to 19.2 kbps.

Innovative circuitry allows the modem to

operate without external power, by drawing low

power from the DTE data and control signals.

The FOM-5A has a V.24/RS-232 interface and is

available with either a male or female integral

25-pin connector.

Fiber optic cable

FOM-5A

Async

terminal

FOM-5A

Async

computer

For latest updates visit www.rad.com

•

Asynchronous transmission up to

19.2 kbps

•

Transmission range up to 3 km

(1.9 miles) over multimode fiber

•

Full or half duplex

•

Continuous or controlled carrier

•

DCE/DTE switch

•

LED indicator for data transmit

•

No external power required

•

Available as a card for 19-inch rack

DSL REPEATERS/MINIATURE FIBER MODEMS

•

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

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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