2 Jun
2020
2 Jun
'20
12:13 a.m.
ESDI used by CDC uses 150 ohms to +Vcc as termination on the control
cable. Signal cables are radial, so they always have termination.
See:
http://bitsavers.org/pdf/cdc/discs/wren/77738212D_94166_Wren_III_ESDI_Produ…
PDF Page 37
Also, generally, the CDC ESDI spec is here:
http://bitsavers.org/pdf/cdc/discs/wren/77738076D2_CDC_ESDI_Specification_N…
--Chuck
On 6/1/20 8:09 PM, Chris Zach via cctalk wrote:
Working on restoring this 11/83, I would like to
replace the Fujitsu
2284E drive with a slightly larger capacity CDC/Imprimis WREN VI
94246-383 ESDI. I think I have the jumper configurations, however the
problem is the disk does not have a terminator pack.
Does anyone know what kind of resistor pack was used for the CDC drives?
It's probably something very basic and easy to find at Digikey but what?
Thanks!
Chris
(working away here)