The router waits that amount of time and then goes into hibernate mode until the UPS reports that the 'utility' power is back

0s - the router will continue to work as long as the battery is supplying sufficient voltage.

never - the router will go to hibernate mode when the 'battery low' signal is sent indicating that the battery power is below 10%.

When the value reaches the min-runtime value, the router will go to hibernate mode. After a 'utility' failure, the router will monitor the runtime-left value. (Applies to RouterOS version 6, implemented since v6.17) Disabling it can fix compatibility issues with some UPS models.

Whether to check UPS capabilities before reading information.

low-battery - alarm only when the battery is lowĬheck-capabilities ( yes | no Default: yes).

immediate - alarm immediately after the on-battery event.

delayed - alarm is delayed to the on-battery event.

Select key which will enter setup on boot:Īlarm-setting ( delayed | immediate | low-battery | none Default: immediate) This can be done in the RouterBOOT options during boot time or via the RouterBoard Settings in Winbox : This is to avoid accidental opening of the setup menu if the UPS unit sends some data to the serial port during RouterBOARD startup. If using a RouterBOARD device, make sure to set your 'RouterBOOT setup key' to Delete instead of the default Any key. If no cable came with the UPS, a cable may be ordered from APC or one can be made 'in-house'. The serial APC UPS (BackUPS Pro or SmartUPS) requires a special serial cable (unless connected with USB).

monitoring of all 'smart' mode status information supported by UPS.

UPS battery test and run time calibration test.

hibernate and safe reboot on power and battery failure.

The UPS monitor feature on the MikroTik RouterOS supports If the UPS battery is drained and the router loses all power, the router will power back to full operation when the ‘utility’ power returns. The router will then continue to monitor the UPS (while in hibernate mode) and then restart itself when the utility power returns. To do this, the router will monitor the UPS and set itself to hibernate mode when the utility power is down and the UPS battery has less than 10% of its battery power left. The basic purpose of this feature is to ensure that the router will come back online after an extended power failure. This feature enables the network administrator to monitor the UPS and set the router to ‘gracefully’ handle any power outage with no corruption or damage to the router. The UPS monitor service is not included in the default set of packages so it needs to be downloaded and installed manually with ups.npk package.

The UPS monitor feature works with APC UPS units that support “smart” signalling over serial RS232 or USB connection.

Smart serial cable nut