000 00382nam a2200097 4500
080 _a
_b
245 _aIEC: 870-5-1 - 1990-02; Telecontrol equipment and systems Part 5: Transmission Protocols. Section one - transmission frame formats
100 _aInternational Electrotechnical Commission
250 _a1.0
260 _aGeneva
_bInternational Electrotechnical Commission
_c1990
300 _a79
500 _aTaken print out from CD
999 _c39872
_d39872