Power Input Type
Rated Voltage
Working Voltage
220 V AC three-phase
220 V AC to 240 V AC
176 V AC to 290 V AC
110 V AC dual-live-wire
100 V AC to 120 V AC
90 V AC to 135 V AC
Table 3-9
Applicable DC input voltage ranges
Power Input Type
Rated Voltage
-48 V DC
-38.4 V DC to -57 V DC
+24 V DC
21.6 V DC to 29 V DC
3.3.1 Configurations of the Upper-Level Circuit Breaker and Power Cables
3.3.2 Power Distribution of the BTS3900
This section describes the power distribution modes of the BTS3900.
3.3.1 Configurations of the Upper-Level Circuit Breaker and Power
Cables
This section describes the recommended configurations of the upper-level circuit breaker and
power cables for the BTS3900. The recommended configurations are based on a fully-configured
single cabinet, which has the peak output power. The power requirements for the customer
equipment in the cabinet are also included.
lists the recommended configurations of the upper-level circuit breaker and power
cables for the BTS3900.
Table 3-10
Recommended configurations of the upper-level circuit breaker and power cables
Power Supply
Requirement for
the Circuit
Breakers on
Customer
Equipment
Cross-Sectional
Area of the Power
Cable
Length of the
Power Cable
-48 V DC
2 x 80 A
16 mm
2
≤
15 m
+24 V DC
1 x 160 A or 2 x 100
A
25 mm
2
≤
15 m
200 V AC single-
phase
1 x 63 A or 1 x 50 A
(both using the two-
6 mm
2
≤
40 m
BTS3900
Hardware Description
3 BTS3900 Hardware Configuration
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3-19