| Address: | http://wwcm.synology.me/pdf/AA-D599A-TC Digital Data Communications Message Protocol DDCMP Specification.pdf |
| Site: | Wilber Williams' Computer Museum |
| Format: | PDF |
| Size: | 22520507 bytes (21.5 MiB) |
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| Address: | http://bitsavers.org/pdf/dec/decnet/AA-D599A-TC_DDCMP4.0_Mar78.pdf |
| Site: | Al Kossow's Bitsavers |
| Format: | PDF |
| Size: | 5029851 bytes (4.8 MiB) |
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| Address: | http://dundas-mac.caltech.edu/%7Edundas/retro/DECnet/aa-d599a-tc.pdf |
| Site: | John's Retro Computing Notes |
| Format: | PDF |
| Size: | 3820691 bytes (3.6 MiB) |
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| Address: | http://www.vaxhaven.com/images/7/74/AA-D599A-TC.pdf |
| Site: | VaxHaven |
| Format: | PDF |
| Size: | 4074511 bytes (3.9 MiB) |