Nexcom VTC 7200-BK User Manual page 78

Appendix D: Signal Connection of MCU DI/DO
(Status: Normal)
*When Pre-Alarm function is enabled.
Internal
3.3V pull high
Copyright © 2013 NEXCOM International Co., Ltd. All Rights Reserved.
External
Pin 1 Pin 2
(Status: Event Occurs)
*When Pre-Alarm function is enabled
Internal
3.3V pull high
64
External
Pin 1 Pin 2
VTC 7200-BK Series User Manual