The control ports have standard 15-needle D-type sockets, through which modules can be controlled and modulated remotely. The detailed usages of these ports are as follows:
1. 控制口公共端：其他控制口电压以此控制口为参考。
Common of control port: voltages of other control ports should common to it.
2. 保留备用。Reserved
3. 输出电压调整端：对此端口外加 -5V～+5V范围内的电压，可以使输出电压在198V～286V范围内调节。
Port of modulating output voltage: to give voltage ranging from -5V～+5V to this port can make output voltage ranging by198V～286V.
4. 保留备用。Reserved
5. 保留备用。Reserved
6. 保留备用。Reserved
7. 保留备用。Reserved
8. 模块告警输出端：此端口为集电极输出，端口功耗20V5mA。当模块内电路报警时，此端口为低电平。
Output port of module alarm: this port outputs through collector with 20V5mA power. It is in low logic level voltage when the circuit in the module alarms.
9. 保留备用。Reserved
10. 保留备用。Reserved
11. 软关机控制端：对此端口加+5V10mA的高电平，模块关机，停止工作。 Control port of soft shutting: inputting +5V10mA high level voltage signal can make the module stop running.
12. 保留备用。Reserved
13. 保留备用。Reserved
14. 保留备用。Reserved
15. 保留备用。Reserved
六、使用方法Usage Method