The HFC-E1 is an E1 controller chipset for PCI bus, produced by CologneChip?.

There are a number of cards using this chipset, among others

• HFC-E1 Datasheet ( http://www.colognechip.com/hfc-e1.pdf)
• The HFC-E1 Evaluation Board of ChipCologne? ( http://www.colognechip.com)
• Beronet BN1E1 Card ( http://www.beronet.com/downloads/whitepapers/BNXE1.pdf)
• Junghanns.NET SingleE1 card ( http://www.junghanns.net/en/singleE1_produkt.html)

Evaluation Board

CologneChip? offers a HFC-E1 Evaluation Board, which is used by our project. Other HFC-E1 cards should theoretically work, too - although this has not been tested. The card has to support 120Ohms NT mode.

Hardware configuration

We set the Jumper and termination configuration as follows:

• 120 Ohms Termination
  • 1: off
  • 2: on
• NT Mode Config A (Pin1/2: Rx, Pin 4/5: Tx)
  • All JP6 and JP1 jumpers between pins 1 and 2 (left)