HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 38)

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TNC 407/TNC 415/TNC 425 1 Hardware components 01.98
. Logic unit LE 407:
Id.-Nr. Logic unit Change
256 113 99 LE 407 A Pilot lot 32-bit bus until 9/90
255 444 99 LE 407 A 16-bit bus; colour graphics chip 8/90 until 5/91
255 444 89 LE 407 A Expansion slot for software module since 9/91
255 444 79 LE 407 A Like Id.-Nr. 255 444 89, but with since 9/91
software module
261 092 99 LE 407 A 32-bit bus since 5/91
261 092 89 LE 407 A Expansion slot for software module since 9/91
261 092 79 LE 407 A Like Id.-Nr. 261 092 89, but with since 9/91
software module
264 430 99 LE 407 A Expansion slot for software module since 6/91
264 430 79 LE 407 A Like Id.-Nr. 264 430 99 but with since 9/91
software module
264 430 29 LE 407 A Uninterruptible supply to control panel since 5/93
264 430 24 LE 407 A Like Id.-Nr. 264 430 29 but with since 5/93
software module