Paradyne manual Modem Power-Up, Removing and Replacing Model 3810 Model 3820 Modems

COMSPHERE 3800 Series Modems

Modem Power-Up

Once your modem is properly connected to the DTE, dial and/or leased lines, and ac outlet, press the modem's rear panel power switch to the ON position. The modem begins a power-up self-test. 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.

Power On Selftst

Passed

F1 F2 F3

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. Refer to Chapter 8, Test Branch.

Removing and Replacing

Model 3810 and

Model 3820 Modems

To remove and replace a Model 3810 or Model 3820 modem, perform the following steps:

1.Make sure the modem is offline, and press the modem's rear panel power switch to the Off position.

2.Disconnect the power cord from the ac power outlet, and then from the connector on the rear of the modem.

3.Disconnect the dial and leased-line modular cords from the modem's rear panel.

4.Disconnect the DTE interface cable from the modem's rear panel.

If the modem is to be removed for service, return it using the procedures on page A in the front of this document for contact information.

5.Install the replacement modem as described in the Model 3810 or Model 3820 Modem Installation section of this chapter, and configure it the same way as the modem being replaced.

2-8 November 1996 3810-A2-GB30-20