
Strata CTX670 Installation
3-23
Strata CTX I&M September 2002
Step 6: Install Reserve Power
Two or four customer-supplied, 12VDC batteries (80 amp hours maximum) can be connected to the
system as a power failure backup. In the event of a power failure, the system automatically switches
over to battery power without any interruption to existing calls or other normal system functions.
Important!
Batteries must be connected when normal AC power is available; they cannot be
connected during an AC power failure situation.
The length of time reserve power operates depends on the system, size and number of batteries
provided, and the system load. Typical reserve power duration estimates and battery specifications are
estimated with the following considerations (see
◆
Batteries have full charge at start of operation.
◆
Two or four batteries connected per
.
◆
Batteries are 12VDC, rated at 80 amp/hours each.
◆
System is operating at full load traffic with LCD phones.
◆
Batteries used for this test are gel-cell and maintenance-free. Reserve duration will vary depending
upon battery type, age, and manufacturer. These figures should only be used as an estimate.
Table 3-1
Typical Reserve Power Duration Estimate
The procedure for installing reserve power varies, depending on the number of cabinets in the system
and the mounting method employed in installing the cabinets. The following text details reserve power
battery installation requirements.
Number of Cabinets
1
2
3
4
5
6
7
Estimated operation time
Two-battery configuration
12.0 hrs.
6.0 hrs.
4.0 hrs.
3.0 hrs.
2.5 hrs.
2.0 hrs
1.8 hrs
Estimated operation time
Four-battery configuration
24.0 hrs.
12.0 hrs
8.0 hrs
6.0 hrs.
5.0 hrs.
4.0 hrs
3.5 hrs
WARNING!
Some batteries can generate explosive gases. Therefore,
ensure that batteries are located in a well-ventilated area.
Do not smoke near batteries.
Avoid creating any electrical sparks near batteries.
Use commercially available battery enclosures to reduce risk to nearby
people and equipment.
Summary of Contents for Strara CTX Series
Page 10: ...Contents viii Strata CTX I M September 2002 ...
Page 14: ...Introduction xii Strata CTX I M September 2002 ...
Page 52: ...Strata CTX Configuration 1 38 Strata CTX I M September 2002 ...
Page 176: ...ISDN Interfaces 5 28 Strata CTX I M September 2002 ...
Page 278: ...Peripheral Installation 8 32 Strata CTX I M September 2002 ...