Strata DK40 I&M Manual Spring 1999
6-1
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
Peripheral Installation
6
This chapter provides connection procedures for optional peripheral equipment to the Strata
DK40 System.
Instructions include hardware requirements, PCB configuration, interconnection/wiring
requirements, and programming considerations. Peripheral equipment is connected to system
PCBs. Refer to Chapter 3 – DK40 Universal Slot PCBs installation and configuration
information and Chapter 2 – DK40 Installation.
Power Failure Options
In the event of a power failure, Strata DK40 uses these options:
Reserve Power
For information on the Reserve Power Option, see:
Chapter 2 – DK40 Installation
DK40 Single-line Power Failure Emergency Transfer
DK40 has a built-in single-line Power Failure Emergency Transfer (requires loop start lines).
See Chapter 2 – DK40 Installation for detailed information.
DK40 Power Failure Transfer Unit
An optional Power Failure Transfer Unit (DPFT) can be installed that automatically connects
up to eight selected analogue exchange lines directly to designated standard telephones in the
event of a power failure. The DPFT enables normal operation of the selected analogue
exchange lines and standard telephones when the system is in service. When power is
restored, each telephone is independently reconnected to system standard telephone circuit
ports after it is finished with its direct exchange line call. The DPFT is normally installed on
the MDF.
Figure 6-1 provides a circuit diagram of the DPFT.
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