Reserve Power Installation; Power Failure Emergency Transfer Option; Installing Power Failure Emergency Transfer; Testing Power Failure Emergency Transfer - Toshiba Strata DK14 Installation And Maintenance Manual

DK40i Installation

Power Failure Emergency Transfer Option

Reserve Power Installation

1. Connect the PBTC-3M black jumper wire from the positive terminal of one 12VDC battery to
the negative terminal of the second 12VDC battery. See
2. Ensure that a serviceable 10-ampere fuse is installed in the in-line fuse holder of the PBTC-
3M battery cable.
3. Connect the white lead of the PBTC-3M battery cable to the open positive terminal of the
12VDC battery. Connect the black lead to the open negative terminal of the second 12VDC
battery.
Important!
4. Connect the PBTC-3M battery cable two-prong male plug to the power supply BATT +/-
receptacle.
5. To test reserve power operation, disconnect the system AC power plug with the power supply
power ON/OFF switch in the ON position. The system should continue to operate without any
interruption.
6. Plug the AC power cable into PN2.
7. Plug the AC power cable into an outlet and turn ON the power supply switch.
8. See "Prior to Installation" to confirm that the power supply is working properly.
9. Plug reserve battery cable into BATT connector of power supply.
Power Failure Emergency Transfer Option
To enable this option, a dedicated standard telephone must be connected to the Power Failure
Transfer Interface (PF1) of a DK40i Base KSU equipped with a TCOU.
During normal operation, this telephone cannot be used and does not count as a station
Note
(does not reduce the number of system's available stations).
If there is a power failure, the telephone automatically is connected to CO Line 1. When power is
restored, the system resumes normal station and CO line assignments, and the dedicated telephone
becomes inoperative again.
Important!

Installing Power Failure Emergency Transfer

Connect a standard telephone to the PF1 connector in the Base KSU (see

Testing Power Failure Emergency Transfer

1. Turn the system power switch OFF.
2. Lift the emergency standard telephone handset, and verify that there is CO dial tone.
3-18
The KSU must be connected to the live operating (hot) AC power source, and the
power supply ON/OFF switch set to ON prior to the final step of connecting the
reserve power batteries to the power supply via the BATT +/- receptacle. If the
batteries are connected after AC power is lost, reserve power will not function.
This is not available on a DK40i system with a TDDU installed.
Figure 3-12.
Figure 3-13).
Strata DK I&M 5/99