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Re: SCSI-T

daemon@ATHENA.MIT.EDU (Robert Nichols)
Sat Nov 9 21:40:25 1996

To: submit-linux-dev-scsi@ratatosk.yggdrasil.com
From: rnichols@interaccess.com (Robert Nichols)
Date: 	Sat, 9 Nov 1996 03:16:57 GMT

Note: E-mailed *and* posted.

In article <199611061339.OAA08152@dbstw.ltw.com>,
Dr.Thomas Wutzke <tom@dbstw.escape.de> wrote:
:
:So, my actual setup looks now like this (* = terminator):
:
:
:    Controller *---+
:                   !
:                   !==Removable drive
:                   !
:       Last   *----+
:      Drive
:
:The == is the part I'm wondering about: Is there a maximum length
:between the SCSI-flat-cable and the buffers on the device, above which
:the bus is not working anymore? Any Ideas.

The SCSI-II spec allows up to a 10 cm stub on a bus with single-ended
drivers/receivers.  That 10 cm includes the contribution from the
connectors and the capacitive loading of the driver/receiver ICs.
Personally, I wouldn't want to stress a single-ended FAST SCSI-II bus
quite that much, but with your 3 cm stub cable and a short overall bus
you should be OK.

-- 
Bob Nichols         rnichols@interaccess.com
Finger rnichols@cluster.interaccess.com for PGP public key.
PGP public key 1024/9A9C7955
Key fingerprint = 2F E5 82 F8 5D 06 A2 59  20 65 44 68 87 EC A7 D7


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