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From: CHAPMAN@MATHOM.CISCO.COM (John T Chapman)
Newsgroups: comp.protocols.tcp-ip
Subject: HSSI
Message-ID: <12668647454.23.CHAPMAN@mathom.cisco.com>
Date: 12 Mar 91 01:18:55 GMT
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Eugene,

You were interested in HSSI.  HSSI stands for the High Speed Serial
Interface.  It is a serial data interface capable of running up to 52
Mbps.  The electrical signal levels are balanced ECL, and the
connector/cable used is the same as is used in SCSI-2.

HSSI was conceived and designed by cisco Systems and T3plus Networking
as an interface between cisco's router product and T3plus's DS3 DSU
product.  cisco and T3plus have put this spec forward as an open
specification for industry use.

Originally defined in October of 1989, it is now in use by over 50
companies world wide.  HSSI is becoming a defacto industry standard
for data interfaces which need to communicate to DS3 equipment, or to
other data facilities which exceed 10 Mbps.

I will send you a copy in the mail.  If anyone else would like a copy,
please contact me at the address below.  Your name will also go on a
distribution list to receive any future updates.

John T. Chapman

chapman@cisco.com

cisco Systems
1525 O'Brien Drive
Menlo Park, Ca 94555

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