PDP-11/44 mystery card

E. Groenenberg quapla at xs4all.nl
Mon Aug 9 03:44:24 CDT 2010


snip snip snip
>
>> "M3110   DRCSA       U   Protocol assist #1 w/special character check
>> and CRC (DEC/DLC/DRCSA)"
>> "M3111   DRCSA       U   Protocol assist #2 w/special character check
>> and CRC (DEC/DLC/DRCSA)"
>
> No clear idea about those two...

I checked with a co-worker (who did service PDP-11's)
He thinks it may have been used as X.25 router/ lineinterface.
Usually there is also a M3112 card (boot/terminator for DECSA)

Ed

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