Viking PF-6A Power Fail Switch or Ground

The PF-6A power failure bypass system makes it possible to receive calls during phone system and power outages. The PF-6A bypass unit connects 6 pre-assigned single line station phones directly to user-assigned CO trunks. A built-in ground start converter permits outbound calls from standard phones.

When the system is restored, calls in progress are not lost. The PF-6A bypass unit will reconnect phones to their station circuits after they become idle.

The PF-6A can be configured to operate when power is lost or from an opening/closing of an alarm contact or manual closure.

Alternatively, the PF-6A can be used to convert six incoming ground start lines to loop start lines. This accommodates installation of telephony equipment requiring loop start lines (example: key systems, call sequencers, answering machines, voice mail, etc.)

Features:

• Transfers six CO trunks directly to the designated analog station phones
• Stackable to increase capacity
• Allows user to receive calls, as well as make calls during power or system failure
• Compatible with loop start lines or 48V ground start lines
• Automatic ground start converter eliminates "ground start buttons"
• Power restoration will not interrupt calls in progress
• Operates on power failure or normally open - normally closed alarm contacts