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Home Products Last Mile (Local Loop) Copper Modems PFH-4 - SHDSL Power Feeding Hub
SHDSL Power Feeding Hub
SHDSL Power Feeding Hub

PFH-4

SHDSL Power Feeding Hub

RAD’s PFH-4 SHDSL power feeding hub is a remote power-feeding hub designed especially to support long-range SHDSL applications. The PFH-4 SHDSL power feeding hub delivers power and data for up to four SHDSL wire-pairs (four x 2-wire lines or two x 4-wire lines), eliminating the need for local power sources for modems or repeaters on the line. The unit is especially practical in long range applications, such as those installed along rail lines or pipelines.

Typical applications include DSL links alongside highways, railways, pipelines, power lines, and waterways, as well as DSL transport to remote concentrators in rural or remote areas, and communication lines to military, construction or temporary field camps and sites.

For more information, download the Data Sheet.


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  • Selectable data rates from 2.4 kbps to 19.2 kbps
  • Full or half duplex over 4-wire
  • Controlled or continuous carrier
  • Diagnostic tests, complying with V.54 standard allow local and remote loopback
  • Available as a standalone unit or inserted as module in a ASM-MN-214 chassis
  • Diagnostic capabilities comply with V.54
  • Automatic equalizer
  • Line protection circuit safeguards the link from electrical damage

The ASM-10/8 is a sync/async short range modem operating full or half duplex over twisted pair, unconditioned lines in point-to-point applications. It has a maximum range of up to 10 km (6.2 miles) and operates at nine selectable rates up to 19.2 kbps.

Approximate Range for 24 AWG (0.5 mm)

 

Data Rate

(kbps)

 km

miles
19.2 10.0

6.0
9.6 13.0

8.0

4.8

 16.0

10.0
2.4 21.0

13.1
1.2 28.0

17.5

 

Conditional diphase modulation ensures efficient transmission

The modem uses conditional diphase modulation (EUROCOM Std. D1), which provides immunity to background noise, eliminates normal line distortion and enables efficient transmission over twisted pair. Transmit timing is provided internally, derived externally from the DTE or recovered from the receive signal.

The ASM-10/8 sync/async short range modem features diagnostic capabilities complying with the V.54 standard to perform local and remote loopbacks.

The unit has a V.24/RS-232 interface and is available as a standalone unit or as a card for the 19" ASM-MN-214 rack that holds up to 14 cards.

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SHDSL Ethernet Modem and Mux
SHDSL Ethernet Modem & Mux
ASMi-52L
SHDSL Ethernet Modem
SHDSL Repeaters
S-RPT
SHDSL or SHDSL.bis Repeater
SHDSL Repeaters
S-RPT/4W
SHDSL or SHDSL.bis Repeater

Need more information?
Contact a product specialist at market@rad.com or locate the sales rep for your country
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Data Sheet

PFH-4
SHDSL/SHDSL.bis Power Feeding Hub
(Publication # 471-100-10/08)
Download the PDF (543k)
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