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- From: kd@doc.ic.ac.uk (Kostis Dryllerakis)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: SCSI Interface:terminator and ID information required
- Date: 14 Dec 1992 15:25:46 GMT
- Organization: Imperial College, London, U.K.
- Lines: 33
- Distribution: world
- Message-ID: <1gi91qINN5k8@frigate.doc.ic.ac.uk>
- NNTP-Posting-Host: sophia.doc.ic.ac.uk
- Keywords: SCSI
-
-
- Dear all,
-
- I suppose that my ignorance on SCSI systems is deep but I need the following
- information quite fast:
-
- My controller requires that there are terminator resistors at both ends of
- the SCSI bus. The one end is supplied by the board itself (Adaptec 1542B)
- the other must be provided by a SCSI device. Currently I have connected
- my hard disk at ID 1 with the resistors powered. Now I want to add a tape
- drive on the SCSI interface. Where do the terminators go? To the last SCSI
- target? To the last physical device on the cable? Do targets have to be
- connected on the SCSI bus according to their ID (i.e. 1 first then 2 etc...).
- I would prefer not to change the configuration of the HD at ID1 and just add
- the tape drive with the resistors powered off. Could that be done? (e.g. by
- connecting the tape first onthe SCSI cable and the disk next?)
-
- I must admit I am quite confused about the subject. If anyone can shed some light
- on my problem please send e-mail. If more people require to know the answer I will
- post a re-cap.
-
- Thanks in advance
-
- Kostis
-
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- K J Dryllerakis Deparment of Computing
- Logic Programming Group Imperial College, LONDON
- Janet: kd @uk.ac.ic.doc Tel: +44(71) 589 5111 x5089
- Uucp : kd@icdoc.UUCP Internet: kd@doc.ic.ac.uk
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