TIA TSB 39:2003
TIA TSB 39:2003 Message Type Assignments For The Extended Protocol Facility Of Tia-136, Tia-691, And Tia/eia/is-2000 Provides a single master list of the message type codes that have been registered for ANSI/TIA-136, TIA-691, and TIA/EIA/IS-2000. Its purpose is to avoid confusion that may result from multiple assign