Reserve Power (Ctx100 And Ctx670) - Toshiba Strara CTX Series Installation And Maintenance Manual

Strata CTX Configuration
Determine CTX670 system miscellaneous power components in the following worksheet. (See
1-26 and 1-29 for component descriptions.) These components are not used on CTX100 systems.
Enter the number of cabinet power components needed:
Main Location ____________

Reserve Power (CTX100 and CTX670)

Two or four customer-supplied 12VDC reserve batteries (80 ampere-hours max.) can be connected to
either system to maintain normal operation during a power failure (see
batteries are kept in a highly-charged state by the power supply's battery charger and must be
connected when the system is operating normally. Fully charged batteries must be connected when
normal AC power is available, batteries cannot be connected after/during an actual power failure.
Table 1-24 CTX100 Reserve Power Characteristics
Battery Charger Characteristics
Charger: current limiting
Nominal float voltage: 2.275 volts/cell
Charge current: 280mA amps maximum
Battery discharge cut-off voltage: 20.5
1-32
Remote Location 1___ 2___ 3___ 4____5___ 6____
CTX670 Cabinet Power
Components
Spare Power Supply
AC Power Strips
208/240VAC Power Supply
Cord
Battery Cables
Battery DIstribution Box
Conduit Box
Floor Mount Stand
±
0.5VDC
Table 1-25 CTX100 Typical Reserve Power Duration Estimates
Number of Cabinets
Estimated operation time Two-battery
configuration
Estimated operation time Four-battery
configuration
DC Current Drain (-24VDC)
1. Assumes 80 ampere-hours with 12VDC batteries.
Enter the Number
Required
BPSU672
RPSB2
BPSB240
BACL240
PBTC-3M
BBTC1A-2.0M
BBDB
BCCB120
BCCB240
BFIF
Tables
Maximum Battery Charger Drain (-24VDC)
Base Cabinet
Base + Expansion Cabinets
1 2
25 hr. 12.5 hr.
50 hr. 25 hr.
3.15 6.30
amps. amps.
Strata CTX I&M September 2002
Tables
1-24~1-27). The
3.15 amps
6.30 amps
1