Total Access Rackmount 6-Amp Power Supply Battery Charger Installation and Maintenance Practice
861180043L2-5D
DC Power Output
The 4-foot long, three conductor PS/BC power output wire originates at the –54V 6A OUTPUT
modular connector and terminates at three #6 ring lugs for customer designated connection.
Wire color-code is as follows:
•Red = –54 VDC
• Black = Return
• Green = Ground
PS/BC to Battery Configurations
The basic design configuration consists of one PS/BC with two batteries. A variety of other
configurations are possible with more (or less) redundant capability, see Figure 3 for standard
configurations I and II.
Figure 3. Wiring Block Diagrams
These would include one or two PS/BCs, none, one, or two batteries, or some combination of
PS/BC and battery. The most reliable configuration would be two PS/BCs with two batteries
each and with independent AC sources. The two PS/BC outputs would terminate at a single
load that has primary and secondary power sharing terminals.
Load
AB
Load
AB
PS/BC
A
PS/BC
A
Batt
Batt
Batt
Batt
Batt
Batt
I
Ia
Ib
Configuration I, Ia, Ib
I. PS/BC, no battery.
Ia. PS/BC + 1 battery string.
Ib. PS/BC + 2 battery strings.
PS/BC
B
II II
IIa
IIb
IIc
IId
Configuration II, IIa, IIb, IIc, IId
II. 2 PS/BC, no battery.
IIa. 2 PS/BC + 1 battery string.
IIb. 2 PS/BC + 2 battery strings.
IIc. 2 PS/BC + 3 battery strings.
IId. 2 PS/BC + 4 battery strings.
This configuration shows adding battery
strings alternately to PS/BC A and B.
Other wiring configurations are optional.