On 2017-07-10 20:51, Greg Freemyer wrote:
On Mon, Jul 10, 2017 at 12:51 PM, John Andersen <jsamyth@gmail.com> wrote:
On 07/10/2017 08:25 AM, Paul Groves wrote:
Would my SCSI Card have terminator resistors built in?
Look for physical terminators or dual cable sockets.
There is no rule that the card must be at the end of a cable. SCSI cards can be in the middle, with devices on both sides.
Its unusual to find a single jumper controlling the resistors on 8, 16, or 24 parallel lines. It costs more electronics to do that than just include a 12 cent resistor pack.
I don't have SCSI in my systems anymore, but the last controllers I used had a BIOS setting to enable/disable the controller termination resistors.
The resistor block is very cheap itself, but it uses board space plus a connector and strong soldering. Board space is paid by square centimetre at manufacturing, and is also limited otherwise. Thus it maybe cheaper to use electronics. -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)