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D-LINK DHN-910 PHONELINE NETWORK IN A BOX
Last updated: 6/7/00

THE DHN-520 NETWORK ADAPTER. The heart of the DHN-910 network is the DHN-520 PCI network adapter.  It glues together two Broadcom chips and network magnetics.  The large chip towards the right side of the board is the Broadcom BCM4210 PCI/MSI controller.  It...

"features a highly adaptive and integrated Internet Communications Processor that transmits and receives data at speeds up to 10 Mbps and above while overcoming the challenging wiring impairments present on the existing installed base of home phonelines. The maximum data rate for the BCM4210 controller is 16 Mbps."

The small chip to the upper left of the BCM4210 is the BCM4100 iLine10TM Analog Front-End.  It...

"is designed to provide maximum front-end performance for home networking applications such as PCI adapters, USB adapters, and embedded systems (such as Broadband Gateways) requiring a high-speed home phoneline networking interface..."  Key features include:

  • Integrated iLine10 Analog Front-End Transceiver for 10 Mbps home networking
  • Digital Multiplexed Transceiver Interface (DMTI) to iLine10 MAC/PHY Controllers
  • Supports both iLine10 and HPNA 1.0 operation"

The BCM4210 and BCM4100 combination "functions on existing home telephone wiring (up to 1000 feet) without disturbing normal phoneline operation or other existing services such as POTS, V.90 modems, ISDN or G.lite DSL."

The magnetics are located in the "black box" behind the RJ-11 jacks on the expansion board bracket.  They couple the BCM4100 transceiver to the telephone line.

The DHN-520 adapter has two RJ-11 ports. The RJ-11s can be used to daisy-chain multiple HomePNA adapters together using home phonelines.  The adapter is designed to operate on standard analog home phone lines and will not work over digital phone lines from a PBX system.   At least one adapter in a daisy-chained network segment must be plugged into an active telephone wall jack.  The adapter requires a voltage in an active phoneline to operate--a negative if you want to use a  room without an active phone jack.

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