Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE |
Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 |
Moderator: | NETCAD::COLELLA DT |
Created: | Wed Nov 13 1991 |
Last Modified: | Fri Jun 06 1997 |
Last Successful Update: | Fri Jun 06 1997 |
Number of topics: | 4455 |
Total number of notes: | 16761 |
A customer has several DECrepeater 90T units in several DEChub 90s and also several DECrepeater 90TS and DECrepeater 900TM units in DEChub 900 Multiswitch. The customer has cheap Ethernet controller cards in his PCs bought from several cheap suppliers. These cards have clock jitters in excess of IEEE UTP specs of 10 Mhz +/- 0.01 %. Hence these cards do not work with our DECrepeater 90T units probably because of a smaller FIFO in the 90T repeaters. These cards work fine with DECrepeater 90TS and DECrepeater 900TM and also Synoptics Repeaters which this customer has. I can give a big technical talk and talk to him for a few hours trying to convince him that it is not Digital's problem and that their PC Ethernet cards are outside of IEEE UTP specs. I may win the battle, yet loose the war; because the customer will either convince the Digital's Account Manager to replace all his 90T units with 90TS units or go to Synoptics and buy more of their repeater cards. I wonder what other Territories do - US/Canada, Europe - in a situation like this. We are talking about dozens of 90T units and hence thousands and thousands of dollars. This customer is the state wide Education Services Organisation in New South Wales State in Australia. Alphonse Alphonse
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