Power Fail Switch or Ground to

- Viking power fail bypass system
- Makes it possible to receive calls during phone system and power outages
- Connects 6 pre-assigned single line station phones directly to user-assigned CO trunks
- Built in ground start converter permits outbound calls from standard phones
- When system is restored calls in progress are not lost
- Reconnects phones to their station circuits after they become idle
- Can be configured to operate when power is lost or from an opening/closing of an alarm contact or manual closure
- Can be used to convert six incoming ground start lines to loop start lines
- One year manufacturer's warranty
- Made in the USA