User's Manual

Download the BTS

May 2000

3-21

SC 4812T CDMA BTS Optimization/ATP

Download the BTS – Overview

Before a BTS can operate, each equipped device must contain device

initialization (ROM) code. ROM code is loaded in all devices during

manufacture or factory repair. Device application (RAM) code and data

must be downloaded to each equipped device by the user before the BTS

can be made fully functional for the site where it is installed.

ROM Code

Downloading ROM code to BTS devices from the LMF is NOT routine

maintenance nor a normal part of the optimization process. It is only

done in unusual situations where the resident ROM code in the device

does not match the release level of the site operating software (e.g.,

Release 8.x ROM code and Release 9.x software) AND the CBSC cannot

communicate with the BTS to perform the download. If you must

download ROM code, refer to Appendix H.

Before ROM code can be downloaded from the LMF, the correct ROM

code file for each device to be loaded must exist on the LMF computer.

ROM code must be manually selected for download.

RAM Code

Before RAM code can be downloaded from the CDMA LMF, the correct

RAM code file for each device must exist on the LMF computer. RAM

code can be automatically or manually selected depending on the Device

menu item chosen and where the RAM code file for the device is stored

in the CDMA LMF file structure. The RAM code file is selected

automatically if the file is in the \lmf\cdma\loads\n.n.n.n\code folder

(where n.n.n.n is the version number of the download code). The RAM

code file in the code folder must have the correct hardware bin number.

RAM code can be downloaded to a device that is in any state. After the

download is started, the device being downloaded changes to OOS-ROM

(blue). When the download is completed successfully, the device

changes to OOS-RAM (yellow). When code is downloaded to an MGLI,

the LMF automatically also downloads data, and then enables the MGLI.

When enabled, the MGLI changes to INS (green).

For non–MGLI devices, data must be downloaded after RAM code is

downloaded. To download data, the device state must be OOS–RAM

(yellow).