| INSTALLATION |
1. RADIO SOFTWARE
The 1st step to install the ELI option applies only to MDR
2. SITE CONTROLLER HARDWARE
The 2nd step to install the ELI option is to verify that the Site Controller computer is a VAX model. PDP models will not support the ELI option. Since some PDP models have been upgraded to a VAX model, you cannot tell if it is a PDP or VAX from the outside. To know for sure, you must look inside the PDP system chassis and check what cards are installed. PDP models that have been upgraded to a VAX model will have their cards arranged in the card cage as shown in Figure 3.
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Figure 3 - Card Layout for PDP Upgraded to VAX
If you find that the Site Controller computer is a PDP model, upgrade kits are available through Ericsson Service Parts. Alternatively, the PDP model may be replaced with the current 19A149302P9 VAX model.
3. SITE CONTROLLER SOFTWARE
The 3rd step to install the ELI option consists of the following two parts:
1.Check the revision of the Application Software PROMs (replacement might be necessary).
2.Replace the Personality PROMs.
Both sets of PROMs are located on the PROM card in the Site Controller computer. Access to the PROM card in the latest VAX version of the Site Controller computer is through the back. Use the following procedure:
3.Turn off the Site Controller computer.
4.Loosen the two fastener screws holding the back panel to the chassis (see Figure 4).
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Figure 4 - Location of Fastener Screws on Computer
3.Rotate the back panel down and out of the way (be careful not to damage the ribbon cables).
4.Remove the PROM Card (see Figure 5) by pulling on the two tabs fastened to the front edge of the card. (Observe standard handling practices for static sensitive components.)
PROM Card |
Figure 5 - Location of PROM Card in Computer
Access to the PROM card in previous VAX versions and older PDP versions that were upgraded to a VAX version is through the top. Use the following procedure:
1.Turn off the Site Controller computer.
2.Pull the Site Controller computer chassis all the way forward on its slide-out track.
3.Pull up the top cover and the attached card cage.
4.Remove the PROM Card (see Figure 6) by pulling on the two tabs fastened to the front edge of the card. (This is a three-handed operation - observe standard handling practices for static sensitive components.)
PROM Card |
Figure 6 - Location of PROM Card in Older Computer
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