GavinChen

My APC Model is Smart-UPS 700 with Serial Cable. Please sure your step 1. What are your RS-232 port with connect APC UPS? 1.Edit /usr/syno/etc/ups/ups.conf [ups] driver = apcsmart port = /dev/ttyS0 <--Changed to your cable = 940-0095B PS: I capture the result picture,but I can't upload it.

Sorry for my bad english. I also use APC UPS without USB, here is my modifying the way in the new version(5.2-5592 update 4) of the DSM. 1.Edit /usr/syno/etc/ups/ups.conf [ups] driver = apcsmart port = /dev/ttyS0 <--Changed to your cable = 940-0095B 2.Modify /usr/syno/etc/rc.sysv/ups-usb.sh at 88 line original local DRV_LIST="usbhid-ups blazer_usb bcmxcp_usb richcomm_usb tripplite_usb" after modify local DRV_LIST="apcsmart usbhid-ups blazer_usb bcmxcp_usb richcomm_usb tripplite_usb" 3.Edit/etc/rc.local at #!/bin/sh below add /usr/syno/etc/rc.sysv/ups-usb.sh start 4.Download https://github.com/networkupstools/nut/raw/master/data/cmdvartab this files and put it to /usr/syno/share/ folder 5.Restart your NAS,and enjoy it!