GE B30 Communications Manual
Also see for b30: Maintenance manualInstruction manualInstruction manualInstruction manualInstruction manual
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6-2 UR FAMILY – COMMUNICATIONS GUIDEINTEROPERABILITY DOCUMENT CHAPTER 6: IEC 60870-5-104 COMMUNICATION63. PHYSICAL LAYERTransmission speed (control direction)Transmission speed (monitor direction)4. LINK LAYERWhen using an unbalanced link layer, the following Application Service Data Unit (ASDU) types are returned in class 2messages (low priority) with the indicated causes of transmission: The standard assignment of ASDUs to class 2 messages is used as follows: A special assignment of ASDUs to class 2 messages is used as follows:5. APPLICATION LAYERTransmission mode for application dataMode 1 (least significant octet first), as defined in Clause 4.10 of IEC 60870-5-4, is used exclusively in this companionstandard.Common address of ASDU One Octet Two OctetsInformation object address One Octet Structured Two Octets Unstructured Three OctetsUnbalanced interchangecircuit V.24/V.28 standardUnbalanced interchangecircuit V.24/V.28 recommendedif >1200 bits/sBalanced interchange circuitX.24/X.27 100 bits/sec. 200 bits/sec. 300 bits/sec. 600 bits/sec. 1200 bits/sec. 2400 bits/sec. 4800 bits/sec. 9600 bits/sec. 2400 bits/sec. 4800 bits/sec. 9600 bits/sec. 19200 bits/sec. 38400 bits/sec. 56000 bits/sec. 64000 bits/sec.Unbalanced interchangecircuit V.24/V.28 standardUnbalanced interchangecircuit V.24/V.28 recommendedif >1200 bits/sBalanced interchange circuitX.24/X.27 100 bits/sec. 200 bits/sec. 300 bits/sec. 600 bits/sec. 1200 bits/sec. 2400 bits/sec. 4800 bits/sec. 9600 bits/sec. 2400 bits/sec. 4800 bits/sec. 9600 bits/sec. 19200 bits/sec. 38400 bits/sec. 56000 bits/sec. 64000 bits/sec.Link transmission procedure Address field of the link Balanced Transmission Unbalanced Transmission Not Present (Balanced Transmission Only) One Octet Two Octets Structured UnstructuredFrame Length (maximum length, number of octets): Not selectable in companion IEC 60870-5-104 standard |
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