Power Supply Removal And Replacement; Power Supply Removal - Toshiba Strata DK14 Installation And Maintenance Manual

DK14 Installation

Power Supply Removal and Replacement

8. Dress and tie-wrap the HPFB cables.
9. To mount a second HPFB, repeat Steps 1~4, then plug the second HPFB connector in the first
HPFB and connect an FG wire between each HPFB FG screw.
10. To test the HPFB, remove the DK14 AC plug from the AC outlet. The DK14 AC LED will go
out, but the DK14 DC LED remains on. Also the system remains in normal working order and
the HPFB 24V LED remains on.
11. If it is desired to turn off the HPFB (after loss of AC power), use a pencil or other sharp object
to press the Battery OFF switch.
CAUTION!
Second HPFB
Connector
FG Screw
AC Power
Cord/Plug 4' 7"
Figure 1-7
Power Supply Removal and Replacement
The power supply comes factory-installed in the KSU; if necessary, it can be removed and
replaced.

Power Supply Removal

1. Make sure that the power supply switch is OFF and that the AC power cable is not plugged
into an outlet. Confirm that green AC LED is not lit. See
2. Loosen the screws on the front cover of the KSU, and remove the cover.
3. Unplug HPFB cable from BATT connector of power supply and disconnect the HPFB ground
wire.
1-8
Once the HPFB is turned OFF or unplugged (during AC power loss) it will not
operate again until AC power is restored to the DK14 KSU.
To Second HPFB (optional)
Tie-wrap
HPFB FG Wire
Note
Do not run power cables with
station and CO line cables.
DK14 Reserve Power Installation
HPFB Unit:
Reserve Power Battery
and Charger (optional)
Tie-wrap
Battery Connector
DC Power Switch
AC
DC
2403
Figure 1-8.
Strata DK I&M 5/99