描述
节点总线的传送介质一般为同轴电缆,有的采用令牌信号传送方式,有的采用带冲突检测的确良多路送取争用总线信号传送方式。不论采用哪种方式,当总线的干线任一处中断时,都会导致该总线上所有站及其子设备通讯故障。
Lot of 2973pcs NEC UPD78F0102HMC-5A4 F0102H 8-bit $1/pc
Welch Allyn 88042A Colposcope Factory Refurbished Spare
Refurbished ALSTOM STF-DL ANTENNA Ref: 23509 Rev. E
Putzmeister Concrete Axial Piston Pump 067370003 New
ICHINOSE S-7000 SQC-6 Positioner Control Panel NEW
PELCO SD4CBW-PG-E1-X Spectra IV Camera
Bluecoat 800-0B ProxySG 080-02780 NEW
Honeywell Pressure Instrument Druck DPI 701 installed
New Motorola SGLF4136FA JCDMA Broadband XCVR 1X CARD