Alcatel-Lucent 1850 User Provisioning Manual page 506

Appendix
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Figure 6-27 Rack view
Figure 6-28 Rack PDU view
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GENTRU provide the interfaces (redundant and fuse-
•
protected) between the rack multiple battery feeders and the
shelves mounted in it
The GENTRU accepts up to 3 independent inputs from the
•
framework at nominal -48/-60Vdc and feeds the shelves with
a minimum voltage level pulled up at –65Vdc
The equipment is dimensioned to work with a minimum
•
voltage level of -57Vdc to meet safety class specified in UL
60950 for ETSI market
An ETSI release calls for a step-up module recalibration at -
•
57Vdc
Two by-pass modules can be put in place of one step-up
•
providing standard station battery voltages
Two independent battery cables to each subrack are provided
•
through GENTRU
Max admitted power consumption per shelf (with step-up
•
feeding) for any configuration is 2kW
User privilege defaults and log indication
Issue 1 February 2009
8DG08763KAAA