Alpha Telecom 555-620A0 Single Line NT1 w/ Switching Power Supply |
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| Converts the two-wire U-Interface that comes from the telephone company to a four-wired S/T-Interface to provide ISDN telephones terminal adapters and video conferencing systems access to BRI ISDN services. This unit conforms to industry standard 2B1Q line code for the U-Interface; ANSI T1.601 1992 T1.605 1991; ITU/CCITT I.430 standards; and is a FCC UL DOC and CUL approved device. Its reliable design protects against lightening and power surges. |
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