107-000187-16 = "DISK CARTRIDGE CONTROL DGC NOVA" -----Original Message----- From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Ulrich Tagge via cctalk Sent: Wednesday, March 21, 2018 5:37 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: DEC Field Guide > equivalent available for Data General? Hi all, is there somewhere a list of DG modules which includes also 3rd party/OEM, ... like it is available for DEC? Would be good to know what the following is: 107-000621 02 107-000621 03/11 107-001632-00 107-0016320/02 107-000718-00 107-000181-04 107-000187-16 107-000187-15-30 AB020116-00 107-000621-03 107-001768-02 107-001768-03 107-0017680-1E 107-00053905 Zetaco SCZ-2 Many Greetings Ulrich

Notes on Data General product numbers: Data General gave definitive part numbers for each product it created. The part numbers are usually located on small labels on each board, and have the format of 005-xxxxx-yy where 005 indicates that this is a product number, xxxxxx is the specific product, and yy is the product revision number. In later systems (1980s) the labels sometimes had two 005 numbers on the label: a "T" (Type) number and an "A" (Assembly) number. This was done because a specific PCB, or "Assembly", could actually be used for different products depending upon what chips or PROMs were stuffed on the PCB. In these cases the T 005 number would indicate what specific options were supported by that specific PCB. On PCBs the 005-xxxxxx-yy part number usually exists on a label attached to the 15"x15" board stiffener (the side opposite the finger edge connectors). This PCB label might look something like this (note that this is just an example): T 005-001322-03 A 005-001367-04 In these situations the important number is the "T" (type) number rather than the "A" (assembly) number since it uniquely identifies the particular product and its capability/function. The "107-xxxxxx-yy" type number is a circuit board "artwork" number, not a Data General product number. Similar to an "assembly", a single 107-xxxxxx-yy circuit board artwork may actually be used by multiple 005-xxxxxx-yy parts. Therefore, the part number is the primary (PCB) reference to be used because a single 107-xxxxxx-yy circuit board artwork may actually be used by multiple 005-xxxxxx-yy parts. Schematics are identified with an 001-xxxxxx-yy part number, and may not even have its corresponding "artwork" number listed on the schematic(!). Unfortunately, I do not know of an official cross-reference between product numbers and artwork numbers. ----- Bruce Ray Wild Hare Computer Systems, Inc. Boulder, Colorado USA bkr at WildHareComputers.com ...preserving the Data General legacy: www.NovasAreForever.org On 3/21/2018 3:37 AM, Ulrich Tagge via cctalk wrote: