Home / Standards / GB/T 16657.2-1996 GB/T 16657.2-1996 Abolished Fieldbus standardfor use in industrial control system--Part 2:Physical layer specification and service definition 工业控制系统用现场总线 第2部分:物理层规范和服务定义 Standard Type GBT ICS N/A CCS N10 Status 废止 Issue Date 1996-12-19 Implementation 1997-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A