Point-to-multipoint gigabit backplane design

Author

Guterman, Alerandre ; Zani, R.

Author_Institution

Nortel Networks, Ottawa, Ont., Canada

Volume

2

fYear

2003

fDate

11-16 May 2003

Firstpage

1106

Abstract

This paper describes the implementation of a contactless midplane as part of Nortel XA-Core project. The design is intended to allow for 1 Gb/s per link across a 36 inch backplane using point to multipoint configuration. Each link provides communication between a driving card and up to 10 receiving cards which can be hot-plugged-in. The transmission system uses DC blocking to achieve bus isolation by means of PCB coupler structures optimized to guarantee a BER better than 1E-14 based on a receiving signal as low as 30 mV. This novel VSOC (viaed short/open couplers) design is presented in the paper. Extensive simulations and signal integrity analysis have been the key to achieve a working midplane under worst-case conditions.

Keywords

data communication equipment; directional couplers; electromagnetic compatibility; error statistics; printed circuit accessories; system buses; telecommunication links; 1 Gbit/s; 36 inch; BER; DC blocking; Nortel XA-Core project; PCB coupler structures; bus isolation; communication link; contactless midplane; driving card; point to multipoint gigabit backplane design; receiving cards; receiving signal; signal integrity analysis; transmission system; viaed short-open coupler design; worst-case condition; Aggregates; Analytical models; Backplanes; Bit error rate; Bit rate; Couplings; Data communication; Degradation; Signal analysis; Signal design;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on

Print_ISBN

0-7803-7779-6

Type

conf

DOI

10.1109/ICSMC2.2003.1429109

Filename

1429109