| MAINTENANCE |
9.System Manager (Enable all but 2nd Group):
∙Using System Manager screen 10, panel 1:4, reconfigure the “Interconnect” field to “Y” for the radio channels connected to the Master GTI unit and each GTI unit in the first group.
∙Using System Manager screen 14, reconfigure the “Line Active” field to “Y” for the line numbers connected to the Master GTI unit and each GTI unit in the first group.
10.Each GTI in 2nd Group (Modify 2nd Group):
Complete the regular GTI units in the order you get to them, as you follow the PCM Data Bus.
∙(MASTR II & IIe applications only) - Add a jumper between pins 2 and 3 of the Power/Audio plug on the back panel of the GTI (see Figure 45).
∙Disconnect the Power/Audio plug (you will need a pair of pliers to pull the plug out of the recessed connector) and Phone plug from the back panel of the GTI unit.
∙Remove the GTI unit from the cabinet, and remove the top cover.
∙If the Main Board is Revision A, replace with a Revision D or E Main Board.
∙Replace the GTI DSP software on the Main Board with V2.03 GTI DSP software.
∙Replace the GTI 552 software on the Main Board with V2.3 GTI 552 software.
∙Replace the GTI Main software on the Processor Board with V2.14 GTI Main software.
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If the ELI system experiences problems due to the temporary disconnections, you will have to disable the ELI system through the System Manager for each temporary disconnection.
∙(MASTR II & IIe applications only) - Remove the jumper between pins 2 and 3 of the Power/Audio plug on the back panel of the GTI (see Figure 45).
∙Go on to next step if you want to put GTI units back into service one at a time, or repeat this step until several or all GTI units have been completed before going on to the next step.
11.System Manager (Enable Each Completed GTI):
∙Using System Manager screen 10, panel 1:4, reconfigure the “Interconnect” field to “Y” for each radio channel connected to each newly completed GTI unit.
∙Using System Manager screen 14, reconfigure the “Line Active” field to “Y” for each line number connected to each newly completed GTI unit.
∙Keep returning to the previous step until all GTI units have been completed and brought back into service.
Plan C - One at a Time
Plan C is to take the ELI system completely out of service while changes are made to the Master GTI unit, and then run the ELI system with only the Master GTI unit while changes are made to the first regular GTI unit. As the changes for each regular GTI unit or group of regular GTI units are completed, they can be reconnected and brought back into service. This plan is harder for those making the changes to the GTI units, but is easier for those wanting to use a
The order in which the regular GTI units are completed and reconnected is important to avoid periodic disruptions when each GTI unit is reconnected to the PCM Data Bus. Follow the PCM Data Bus from the Master GTI unit to the regular GTI units. Complete the regular GTI units in the order you get to them, as you follow the PCM Data Bus.
If the Master GTI unit does not have a telephone line connected to it, temporarily patch a telephone line to it until one or more regular GTI units with a telephone line have been completed and brought back into service.
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