Power Fail Operation - BT Versatility Get Started

Power Fail Operation

Your BT Versatility is provided with a basic power fail mechanism to allow the system to
continue operation in power fail situations.
Analogue Systems
For systems with traditional Analogue (PSTN) Lines two extensions on each extension
module are connected directly to the first two Network Lines on that module as follows:
Line
1/2
5/6
9/10
13/14
Digital Systems
Systems populated with Digital (ISDN) Lines only will not operate in Power Fail mode.
These systems MUST be populated with the Optional Battery Back Up unit or an
auxiliary uninterruptible Power Supply (UPS)
Battery Backup Unit
The Optional BBU available with the BT Versatility will ensure all system configurations
can operate to full capacity for a minimum of 1 hour under normal load conditions.
Extension
26/27
34/35
42/43
50/51
BT Versatility
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