Description: Determines the type of Interface for the High Speed port.

eia232 (2) - EIA/TIA-232 Common physical layer interface standard, developed by EIA and TIA, that supports unbalanced circuits at signal speeds of up to 64 kbps. Formerly called as RS-232. eia422 (4) - EIA/TIA-422 (RS-422) Common physical layer interface standard that supports balanced electrical implementation of EIA/TIA-449 for high-speed data transmission. eia530 (13) - EIA-530 Refers to two electrical implementations of EIA/TIA-449: RS-422 (for balanced transmission) and RS-423 (for unbalanced transmission). Now referred to collectively as EIA-530. ituV-35 (14) - ITU V.35 ITU-T standard describing a synchronous, physical layer protocol used for communications between a network access device and a packet network. V.35 is most commonly used in the United States and in Europe, and is recommended for speeds up to 48 Kbps. eia530A (15) - EIA-530A Common physical layer interface standard, developed by EIA and TIA, that supports unbalanced circuits at signal speeds of up to 64 kbps. Formerly called as RS-232. ituX-21 (16) - ITU X.21 ITU-T standard for serial communications over synchronous digital lines. The X.21 protocol is used primarily in Europe and Japan.