Obtaining The Esn; Appendix - Huawei BBU3900 Installation Manual

Obtaining the ESN

Record the Electronic Serial Number (ESN) shown on the label attached to
the mounting ear of the BBU, and report the ESN to the engineer for the
commissioning of the base station.
ESN

Appendix

a
Setting the DIP Switches
Remove the GTMU and UELP from the BBU.
Wear an ESD wrist strap during the operations on the
boards to prevent damage to the boards.
The UELP is optional. Please check the settings of the DIP switches according to the field conditions.
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