XEROX Neil Gunther Xerox PARC 3333 Coyote Hill Road Palo-Alto CA 94304 (415) 494-4401. MTSChannelCard DrillTape - Rev B Board Vendor: Trend Circuits 44358 Old Warm Springs Blvd Fremont, CA 94537 651-1150 Purchase Order: 90223 Drilltape Info: o The tape density is 1600 BPI. o The block size is 1024 bytes. o There is 2 files on the tape. Both are the same Drill File in Excellon MkIII format. The first one is 16 records long and in coded in ASCII. [mts.m3a] The second one is 21 records long and in coded in EIA. [mts.m3e] (You can use the most convenient of these.) o If you drill 5 mills over the finished hole size here are the diameters: For tool number 1 you will need 1 bit of 31 mils to drill the 399 holes of that size. For tool number 2 you will need 4 bit of 35 mils to drill the 1310 holes of that size. For tool number 3 you will need 1 bit of 47 mils to drill the 80 holes of that size. For tool number 4 you will need 1 bit of 145 mils to drill the 2 holes of that size. ”MTSChannelController.DrillTape.tioga Copyright Σ 1988 by Xerox Corporation. All rights reserved. Neil Gunther: April 1, 1988 11:59:39 am PST Κξ˜šœ$™$Icode™