General; Reserve Power/Power Failure Options; Reserve Power Option - Toshiba Strata DK24 Installation And Maintenance Manual

1 GENERAL

1.00 This chapter provides connection procedures
for optional peripheral equipment to STRATA DK
systems. The instructions for each option include
hardware requirements, printed circuit board (PCB)
configuration, interconnection/wiring requirements,
and programming considerations.
1.01 Peripheral equipment is connected to system
PCBs. Refer to PCB Installation, Section 400-096-
206, for PCB installation and configuration informa-
tion.
2 RESERVE POWER/POWER FAILURE
OPTIONS
2.00 STRATA DK systems offer two options to
protect system operation in the event of a power
failure: the Reserve Power option and the Power
Failure Emergency Transfer option.

2.10 Reserve Power Option

2.11 STRATA DK system power supplies can be
equipped with a reserve power source (battery
backup) to ensure uninterrupted system operation
in the event of a power failure. A pre-assembled
interface cable for installation of the Reserve Power
option (PBTC-3M) is available from Toshiba.
WARNING!
To reduce the risk of fire or injury to per-
sons, read and follow these instructions:
1. Use only the following type and size
batteries: 12-volt, gelcell.
2. Do not dispose of the batteries in a fire.
The cells may explode. Check with lo-
cal codes for possible special disposal
instructions.
3. Do not open or mutilate the batteries.
Released electrolyte is corrosive and
may cause damage to the eyes or skin.
It may be toxic if swallowed.
4. Exercise care in handling batteries in
order not to short the battery with con-
duction materials such as rings, brace-
lets, and keys. The battery or conduc-
tor may overheat and cause burns.
5. Charge the batteries provided with or
identified for use with this product only
INSTALLATION-PERIPHERALS
in accordance with the instructions and
limitations specified in this manual.
6. Observe proper polarity orientation be-
tween the batteries and battery charger.
7. Enclose batteries in acid-proof con-
tainers according to local ordinances.
2.12 Refer to KSU Installation, Section 400-096-
205, for reserve power battery site requirements.
IMPORTANT NOTE!
Local ordinances may dictate battery type
and installation details.
2.13 Reserve Power Installation. Install the Re-
serve Power option in accordance with the follow-
ing steps: (Refer to Figure 8-1.)
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.
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 bat-
tery 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 NOTE!
The KSU must be connected to the AC
power source and the power supply ON/
OFF switch set to ON before 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.
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 switch in the ON position. The
system should continue to operate without
any interruption.
8-1
SECTION 400-096-208
SEPTEMBER 1992