Strata CTX Configuration

Primary/Reserve Power Cabinet Hardware

Table 2-63 CTX670 Reserve Power Characteristics

Battery Charger Characteristics

Maximum Battery Charger Drain (-24VDC)

Charger: current limiting

1 cabinet

6.0 amps

5 cabinets

30.0 amps

2 cabinets

12.0 amps

Nominal float voltage: 2.275 volts/cell

6 cabinets

36.0 amps

Charge current: 0.7 amps maximum

3 cabinets

18.0 amps

7 cabinets

42.0 amps

Battery discharge cut-off voltage: 20.5 ±0.5VDC

4 cabinets

24.0 amps

 

 

 

 

 

 

 

 

Table 2-64 CTX670 Typical Reserve Power Duration Estimates1

Number of Cabinets

1

2

3

4

5

6

7

 

 

 

 

 

 

 

 

Estimated operation time

12.0 hr.

6.0 hr.

4.0 hr.

3.0 hr.

2.5 hr.

2.0 hr.

1.8 hr.

Two-battery configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Estimated operation time

24.0 hr.

12.0 hr.

8.0 hr.

6.0 hr.

5.0 hr.

4.0 hr.

3.5 hr.

Four-battery configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC Current Drain

4.6

8.7

12.8

16.9

21.0

25.1

29.2

(-24VDC)

amps.

amps.

amps.

amps.

amps.

amps.

amps.

 

 

 

 

 

 

 

 

1. Assumes 80 ampere-hours with 12VDC batteries.

Strata CTX Configuration

Primary/Reserve Power Cabinet Hardware

The type of cabinet mounting can have an effect the power requirements. There are two types of mounting for the CTX100 and CTX670 (listed below).

Cabinet Wall Mounting – The lightweight and compact design of CTX100 and CTX670 enables easy wall mounting. Wall Mounting requires no special hardware.

Cabinet Floor Mounting – Only the CTX670 can be floor mounted (requires the BFIF hardware kit). If floor mounting three or more cabinets, AC and reserve power must be connected to the BCCB conduit connection box option by a licensed electrician. If more than two cabinets require reserve power batteries, the BBDB must be installed.

Underwriters’ Laboratory (UL) and local electrical codes require certain standards for connecting commercial AC and reserve power to the Strata CTX system. Tables 2-63and 2-66describe which assemblies may be required to meet UL and local electrical code standards.

The power distribution hardware for the CTX100 is shown in Table 2-65.

Table 2-65 CTX100 Cabinet Power Distribution Hardware

Option

Description

 

Strata CTX100 cabinet power supply is supplied with each cabinet. Operates with 120VAC as

APSU112

the system’s primary power source and requires 1.8 amps AC per cabinet.

 

The power supply AC cord is 5 ft. long with a standard three prong plug.

 

 

 

A three-meter long battery cable is used to connect reserve power batteries to the ABCS battery

ABTC-3M

charger when the system has less than three cabinets. One reserve power cable is required for

 

each cabinet.

 

 

ABCS

Option battery charger that is installed on the APSU112 power supply. One per cabinet is

required with the ABTC-3M if connecting reserve power batteries to the CTX100.

 

 

 

Strata CTX I&M 06/04

2-49

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Toshiba CTX28 manual Primary/Reserve Power Cabinet Hardware, APSU112, ABTC-3M, Abcs