Paradyne COMSPHERE 3910, Installation Instructions Manual

10

Power Supply Connection

Use the following procedures to connect the modem to an ac power outlet:

1. Make sure the modem’s power switch is in the OFF position.

2. Insert the power supply’s 8-pin DIN connector into the modem’s rear panel dc power receptacle

(Figure 1).

3. Connect the power supply to a grounded ac power outlet.

Modem Power-Up

Once your modem is properly connected to the power supply, leased and/or dial lines, and the DTE, press the
modem’s rear panel power switch to the ON position. The modem begins a power-up self-test, in which all DCP
LEDs light. This test takes several seconds to perform, and verifies the operation of most hardware components
within the modem. If successful, the LCD displays Power On Selftst Passed and continues to the Top-Level
menu screen.

F1

Power On Selftst
Passed

F2

F3

3-1

If a failure occurs during the self-test, the LCD displays Power On Selftst Failed for several seconds. The LCD
then displays the Top-Level menu screen with the message Power on Fail appearing on the top line of the LCD.
Although a failure has occurred, the modem will attempt to operate. This allows you to activate a more thorough
self-test using the Test branch. For a better understanding of the Test branch, refer to Chapter 3, DCP Operation,
in Document No. 3910-A2-GN32.

Selecting Factory Configuration Options

After the modem passes the power-up self-test, configure it for operation using one of the six factory preset
configurations.

The purpose of having preset configurations is so that you can have a “head start” in getting your modem
operating and reduce the amount of time required to configure your modem. For a better understanding of DCP
operation and factory preset configuration options, refer to Chapter 4, DCP Configuration, in Document No.
3910-A2-GN32.

Using the Diagnostic Control Panel (DCP)

The DCP’s liquid crystal display (LCD) consists of two 16-character lines which display modem status, control
functions, and configuration options as well as indicating your location in the Top-Level menu tree.

To change a factory template from the Sync Leased preset configuration using the DCP, perform the following
steps:

1. Press the function key below Configure to select the Configure branch.

The LCD now displays Ld EditArea frm.