Reliability Specifications Of The Dbs3900; Lightning Protection Specifications Of The Dbs3900 - Huawei Airbridge DBS3900 Product Description

Airbridge DBS3900 CDMA Base Station
Product Description
Item
Ambient temperature for
running
Relative humidity for
running

6.3 Reliability Specifications of the DBS3900

This describes the reliability specifications of the DBS3900.
Table 6-16
Table 6-18 Reliability specifications of the DBS3900
Item
Availability
Mean Time Between Failures (MTBF)
Mean Time To Repair (MTTR)

6.4 Lightning Protection Specifications of the DBS3900

This describes the lightning protection specifications of the DBS3900 in terms of lightning
specifications of the power input port, E1/T1 input port, GPS RF signal input port, dry contact
port, and RF antenna port.
Table 6-17
Table 6-19 Lightning protection specifications of the DBS3900
Item
AC power input port
DC power input port
Issue 11 (2010-06-18)
Specification
-40°C [-40°F] to +52°C [125.6°F] (solar radiation not
considered)
5% RH to 100% RH
lists the reliability specifications of the DBS3900.
lists the lightning protection specifications of the DBS3900.
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6 Technical Specifications of the DBS3900
Specification
≥ 99.999%
BBU3900: ≥ 280000 hours
RRU3606: ≥ 260000 hours
≤ 1 hour (excluding the time needed
for the engineers to arrive at the site)
≤ 3 hours (including the time needed
for the engineers to arrive at the site)
Specification
Differential mode: ±60 kA, 8/20 us
Common mode: ±60 kA, 8/20 us
Differential mode: ±2kA, 1.2/50 us
Common mode: ±4kA, 1.2/50 us
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