Defense Data Network C/30E Physical Layer Interface Guide
DEFENSE COMMUNICATIONS AGENCY ARLINGTON VA
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Purpose. This Circular prescribes the policy, assigns the responsibility, and identifies the requirements for connecting an X.25 host to a C30E PSN by means of a MIL-STD-188-114 balanced, EIA-232-D, or V.35 interface. This Circular also identifies the requirements for connecting one C 30E PSN to another by means of a MIL-STD-188-114 balanced, EIA-232-D, or V.35 interface, as well as for the BELL 303 interface. Keywords Digital computers, Electrical terminals.
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