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。
GIDDINGS & LEWIS (BICKFORD) Semi-auto drill point grnd
GIDDINGS & LEWIS (WINSLOW) EXACTAMATIC HC DRILL GRINDER
Giddings & Lewis Winslowmatic HR947 Drill point Grinder
Giddings & Lewis Drill Grinder
GIDDINGS & LEWIS 502-04112-11R5 USPP 5020411211R5
GRINDER – GIDDINGS & LEWIS WINSLOW DRILL POINT GRINDER
GIDDINGS & LEWIS BALLSCREW 3″ DIA. 2 PPI MC-60 450-0423