User's Manual

DRAFT 4
26 Description TB9400 Installation and Operation Manual
© Tait Electronics Limited September 2011
Table 1.1 PMU DC voltage limits
a
Parameter
Voltage Range
12 V PMU 24 V PMU 48 V PMU
User-programmable Alarms
b
Low Battery Voltage
High Battery Voltage
10 V to 14 V
14 V to 17.5 V
20 V to 28 V
28 V to 35 V
40 V to 56 V
56 V to 70 V
User-programmable Limits
bc
Startup Voltage (after shutdown)
Shutdown Voltage
10.9 V to 15 V ± 0.3 V
10 V to 13.5 V ± 0.3 V
21.8 V to 30 V ± 0.3 V
20 V to 27 V ± 0.3 V
43.6 V to 60 V ± 0.3 V
40 V to 54 V ± 0.3 V
Battery Protection (Fail-safe) Limits
Startup Voltage
Undervoltage Shutdown
Overvoltage Shutdown
Overvoltage Shutdown Reset
10.8 V +
0.2 V
9.5 V +
0.3 V
18.1 V +0.3 V
17.1 V +
0.3 V
21.6 V +
0.5 V
19 V +
0.5 V
36.2 V +0.5 V
34.2 V +
0.5 V
43.2 V +
1 V
38 V +
1 V
72.4 V +1 V
68.4 V +
1 V
a. The information in this table is extracted from the Specifications Manual. Refer to the latest issue of this manual
for the most up-to-date and complete PMU specifications.
b. Using the base station’s web interface.
c. These limits are subject to the tolerances of the battery protection circuitry.