User's Manual - Pixord

‣ GPIO Terminal BlockPinName1 EXTVCC2 485A3 485B4 Relay_COM5 Relay_NO6 GPIN17 GPIN28 GPIN39 GPIN410 GND‣ Pin Number: External VCC: This pin outputs unregulated 10V when power on with AC 9V1A adapter, it may be used to drive external relay or sensor which is convenientto install for users.For rack mount application, it could be connected with external regulated DC10-24 Volt as system power. In this situation, we must not connect the ACadapter.Caution: The electric current can’t exceed 200mA when the external VCCoutputs to drive external devices. Furthermore, over loading will cause thedamage of AC adapter or internal components. If using external DC to input tosystem as power supply, it must provided in the specifications which regulatedDC 10~24V, >10W ; otherwise, it will cause system damaged ormalfunctioned.58 / 88