Ericsson EDN612 - 4 Power Requirements and Distribution

Power Requirements and Distribution
3/1531-HSD 101 41 Uen E 2007-08-13
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4 Power Requirements and Distribution
EDN612 and ESN212 use -48 volt power supply. Either High Ohmic
distribution system, or independent power distribution (Standard -48V
telecom supply) according to ETSI EN 300 132-2 v2.1.2 (2003 09) can be
used. 15A fuse is required. It is recommended to use EPN210 for the
power distribution as illustrated in the following figure:
Figure 3 Recommended Power Distribution
If another power distribution unit is used instead of the EPN210, it is
possible to use the TSR 263 65/xxx cables (EDA Power Cable Open End).
A solution to omit the EPN210, and use the 5:1 power distribution cable as
illustrated in the following figure:
Figure 4 Power Distribution
Note: The fuse is not part of any cable, and is purchased separately.
-48 VDC
Fuse
10 – 15A
EDN612
EDN612
ESN212
Cable: TSR 263 72/xxx
(EDA Power cable 5:1 open ended)
-48 VDC
Fuse
15A
EDN612
EDN612
ESN212
Cable: TSR 263 69/3000
(EDA D-Sub Power cable open
ended
)
Cable: TSR 263 70/600
(EDA Power cable standard)
EPN210