The subsections also address any diagnostic LEDs, fuses and signal/power connectors found on theunit. On Drawings A-143808, A-144323, and A-145045, the TNMC components are denoted asfollows.Component Part Number LocationTNMC interface card 0A-1146-0016 Behind modules, on TNMC back panel(refer to Drawing A-145045)TNMC controller 0A-1146-0061 Behind modules, on TNMC back panel(refer to Drawing A-145045)Modules 0A-1208-3002 Over entire face of the TNMC (refer toDrawings A-143808 and A-144323)Power supplies 0A-1213-4013 Behind modules and attached to powersupply assembly 0A-1213-4013 on the backpanel (refer to Drawing A-145045) Remember: Disconnect power before servicing internal components!TNMC Current Loop Interface (CLI) CardThe CLI card, located on the rear-access panel of the TNMC, translates the signal media toTIA/EIA-232 (formerly RS-232) for use within the components of the TNMC. The signal transfersinto the TNMC controller where that component interprets and distributes the data to the modules.Refer to Drawing A-145045.TNMC ControllerThe controller, located on the rear-access panel, receives signal from the CLI and sends data to themodules. Refer to the signal summary in Section 9.3 for more information and to Drawing A-145045 for the position of the controller board. Figure 7, below, illustrates a typical controller.Figure 7: Controller Component LayoutTNMC Maintenance 9-3