The DTE/DCE interface uses following Physical layer protocols:EIA/TIA-232: up to 64 kb/s on a 25-pin D-connector over short distances.
EIA/TIA-449/530: faster (up to 2 Mb/s) version of EIA/TIA-232. A 36-pin D-connector and is capable of longer cable runs. Also known as RS422 and RS-423.
EIA/TIA-612/613: High-Speed Serial Interface (HSSI) protocol. Up to 52 Mb/s on a 60-pin D-connector.
V.35: the ITU-T standard for synchronous communications between a network access device and a packet network. Up to 2.048 Mb/s on a 34-pin rectangular connector.
X.21: an ITU-T standard for synchronous digital communications. A 15-pin D-connector.
No comments:
Post a Comment