From: Knighten, Jim L ([email protected])
Date: Thu Jul 20 2000 - 09:13:57 PDT
Sunil,
My company has a 1.0625 Gb/s link from cabinet to cabinet. We chose the
Micro-D Subminiature by UltiMate along with a one piece backshell can for
EMI. This choice was made a couple of years ago, prior to the second
generation HSSDC style. The Micro-D is not impedance matched for either our
application (150 Ohms) or yours (100 Ohms) in that its differential
impedance is near 90 Ohms. It is smaller than the original HSSDC. It has
EMI characteristics which are superior to the HSSDC and we find that we are
able to operate our links for a few tens of meters without difficulty.
As we look forward to 2.5 Gb/s and beyond, I don't think our connector will
be satisfactory for the signal, however.
Jim
________________________________________________________
Dr. Jim Knighten e-mail: [email protected]
<[email protected]>
Technical Consultant - Design
NCR
17095 Via del Campo
San Diego, CA 92127 http://www.ncr.com <http://www.ncr.com>
Tel: 858-485-2537
Fax: 858-485-3788
-----Original Message-----
From: Sunil Kumar [mailto:[email protected]]
Sent: Thursday, July 20, 2000 1:56 AM
To: [email protected]
Subject: [SI-LIST] : Gigabit cable assembly
Hello everybody.
In my application, 1.5Gbps links have to be taken from one
cabinet to
the other. There are sixteen links taken from one card
(cabinet) taken to
another card (cabinet). The connectors for these sixteen
duplex links
have to be accomodated over a length of 8 inches of board
edge. I am
thinking of using copper cables. Multiple high speed right
angle
connectors will be used on the board. The length of the
cable
will be less than 5 meters. As the connectors have to
mounted on the front
side of the board, I can not use the backplane connectors:
VHDM, Metral
etc. The connectors which I know are DB9 and HSSDC. But the
problem is
they are too big for my application. I don't have space to
put multiple
connectors of any of these types. Can anybody please suggest
me a smaller
connector and the corresponding cable assembly?
Thanks
Sunil Kumar Bahuguna PH: 91-80-2204616
Research Engineer Fax: 91-80-2263256
ATM Group Email: [email protected]
Switching BII
C-DOT
Sneha Complex
71/1 Millers Road
Bangalore-560052
Karnataka
INDIA
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