Paradyne 392xPLUS operation manual Status Indicators, Model 3920Plus Diagnostic Control Panel

DCP Operation

Model 3920Plus Diagnostic Control Panel

The diagnostic control panel (DCP) of the Model 3920Plus modem (Figure 3-1) contains status indicators, pushbutton-type keys, an LCD, and speaker grill.

F1 F2 F3

PWR ALRM DIAG DTR RTS CTS TXD LSD RXD SQ TEST RATE DIAL

COMSPHERE 3920Plus

108 105 106 103 109 104 142

496-14412-02

Figure 3-1. Model 3920Plus DCP

Model 3921Plus Faceplate and Shared Diagnostic Control Panel (SDCP)

The shared diagnostic control panel (SDCP), Figure 3-2, is used to manage carrier-mounted

Model 3921Plus modems.

The faceplate of the Model 3921Plus contains LED status indicators that monitor the operation of the modem. After the SDCP is connected to the modem, the Front Panel indicator of the selected modem lights to show that the modem is connected.

Status Indicators

The 392xPlus modem status indicators continuously provide information on the modem's operating condition. All of the status indicators on the Model 3920Plus appear on the DCP (Figure 3-1), whereas the status indicators for the carrier-mounted Model 3921Plus are located on the Model 3921Plus modem's faceplate and the SDCP faceplate (Figure 3-2).

The standalone Model 3920Plus modem's DCP has 13 light-emitting diodes (LEDs), and the carrier-mounted Model 3921Plus has 20 LEDs. These LEDs are listed and described in Table 3-1. LEDs specific to one model type have the appropriate model number shown in the table.

3920-A2-GN31-30 November 1996 3-3