Ericsson Baseband 6648 Manual page 10

Baseband Description
Condition
Operating voltage range
Non-destructive range
Fuse and Circuit Breaker Recommendations
The external fuse and circuit breaker recommendation for the baseband unit is
shown in
The recommendations in this section are based on peak power consumption and
give no information on power consumption during normal operation.
The recommended melting fuse type is gG-gL-gD in accordance with
IEC 60269-1. Circuit breakers must comply with at least Curve 3 tripping
characteristics in accordance with IEC 60934.
Table 4
DC Power
Baseband unit
(1) The recommended fuse rating corresponds to peak load and depends on the configuration.
(2) This value is the internal maximum fuse rating for the unit. General fuse dimensioning have to
take all external factors into account, such as local regulations and cable dimensioning.
3.3.1 Power Consumption
The power consumption values are presented as typical and maximum values,
for a unit with fan. The typical values are based on an air temperature of 20 °C
for the air entering the unit and a typical traffic load. The maximum values are
based on an air temperature of 40 °C for the air entering the unit and a maximum
traffic load.
Note:
Table 5
Unit
Baseband 6648
For information on power consumption values see
Power Consumption
6
Table 4.
Fuse and Circuit Breaker Recommendations
Minimum Fuse Rating for
Reliable Operation (A)
16
The power consumption for SFPs or GPS is not included.
Power Consumption
Typical
≈ 310 W
Calculations.
Value
−38.0 to −58.5 V DC
0 to −60 V DC
(1)
Maximum
≈ 340 W
Power Consumption Data
271/1551-LZA 701 6001/1 Uen A | 2020-04-29
Maximum Fuse Rating
(A) (2)
20
and