ADTRAN ATLAS 810 Plus User Manual
Page 173
Appendix E. Glossary
61200266L1-1
ATLAS 810
PLUS
User Manual
E-7
XMODEM
An error-correcting file transfer, data transmission protocol used to transmit files between PCs. The
XMODEM protocol sends information in 128 byte blocks of data. Some sums (check sums) are done on
each block and the result is sent along with the block. If the result does not check out at the other end,
the computer at the other end sends a request (a NAK - negative acknowledgment) to retransmit that
block again). If the block checks out, the computer sends ACK (an acknowledgment). In this way, rela-
tively error-free transmissions can be accomplished.
See also other documents in the category ADTRAN Hardware:
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- DS3 MX (2 pages)
- 600R (264 pages)
- DUAL Nx56/64 1200142L1# (42 pages)
- NetVanta T1/FT1 + DSX-1 (2 pages)
- IQ SERIES 56 (1 page)
- 1200070L2 (187 pages)
- 1200051L2 (165 pages)
- NETVANTA 3120 (2 pages)
- 1200 (2 pages)
- NetVanta Series (2 pages)
- 850 (4 pages)
- ATLAS 800 Series Module QUAD E1 (2 pages)
- Atlas 830 (2 pages)
- TSU LT (2 pages)
- Express L1.5 (2 pages)
- MX2820-48 VDC M13 MUX (2 pages)
- Dial Backup Interface Module 1204006L2 (2 pages)
- 900 Series (2 pages)
- Atlas 550 (1 page)
- Atlas 550 (262 pages)
- NetVanta 5305 (2 pages)
- 1200350L1 (134 pages)
- ATM Mini-DSLAM (2 pages)
- D4-n x 64 DSU DP (4 pages)
- Type 400 (4 pages)
- 1204002L1 (163 pages)
- NetVanta ADSL (2 pages)
- 3000 HTU-C (2 pages)
- 600e (2 pages)
- 1200F (2 pages)
- D4 TRI-C DP (1 page)
- 239 T1 HDSL4 (20 pages)
- 3000 NTU-8 (18 pages)
- 1200130L1 (153 pages)