数字输入可以和外部安全联锁开关联结在一起。
The digital input can be used in conjunction with an external safety interlock switch.
所设计的芯片是32个输入32个输出的交叉点开关阵列，每一个输出都能连接任何一路输入，采用串行数字控制方式。
The chip is a crosspoint array with 32 outputs, each of which can be connected to any one of 32 inputs. The chip is programmed in serial mode.
时钟等快速开关信号必须利用数字地屏蔽起来，以免向电路板上的其它器件辐射噪声，并且绝不应靠近基准输入。
Fast switching signals, such as clocks, must be shielded with digital ground to avoid radiating noise to other parts of the board, and must never be run near the reference inputs.
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