功能描述
1.由驾驶室向机舱传达主机转速命令及由机舱回答命令执行情况的设备。
2.CCL应急主机传令钟共分十一档：进一、进二、进三、进四、备车、停车、完车、退一、退二、退三、退四。
3.在特殊的情况下，由机舱传达主机现行速度的命令，而驾驶室回答命令。
4.误车报警：主机齿轮箱检测到转向信号与应急主机传令钟收信器所要求操作的进退方向相反时，应急主机传令钟发信器发出误车报警信号。主机齿轮箱信号由应急主机传令钟收信器输入检测判断。
5.失电报警：当其中一路电掉电时，自动转到另外一路电源，应急主机传令钟发信器发出失电报警声光信号。
6.调光：可随外界光线强弱调节驾驶室应急主机传令钟发信器面板上指示灯。
7.带VDR(RS485)接口
8.应急主机传令钟收信器输出一付无源闭合触电和一付有源触电（DC24V 1A）
Functional Description
The system orders the main engine speed from wheel house to Engine room respond the speed from Engine room to Wheel house.
In event of special condition,the present speed of main engine can be sent from engine room to Wheel house,and respond from wheel house.
CCL Emergency Telegraph has 11 levels:forehead1、forehead2、forehead3、forehead4、stand by、stop、finished、astern1、astern2、astern3、astern4.
Order error alarm:When the forward or astern signal is not synchronous detection by gear case of M/E and Emergency main engine telegraph receiver,The emergency main engine telegraph transmitter will seed out order error alarm signal,Signal of M/E’s gear case must be estimate obey the input detection signal of Emergency main engine telegraph receiver.
Power failure alarm:when the main power is fault,It could switchover to emergency power automatically ,and Emergency main engine telegraph transmite send out visual and audio signal of power failure alarm
Light adjustable：the indicator in the wheel house panel can be adjuste
VDR(RS485)
Emergency main engine telegraph receiver output a pair of passive closed contact and o pair of active contcact(DC24V 1A).
采用标准：
符合《钢质海船入级规范》（2012）第4篇，第2章，第8节，第2.8.1.3款
Adopt standard
Item 2.8.1.3Section 8,Chapter2,Part4 of CCS Rules for the CLASSIFICATION OF SEA-GOING STEEL SHIPS(2012) of CHINA CLASSIFICATION SOCIETY.
