COMSPHERE 3800 Series Modems ± Model 3830

To ensure compliance with FCC Part 15 Regulations, a ferrite choke must be installed on the power transformer cable.

1.Open the ferrite choke, place it around the power transformer cable as close as possible to the connector attached to the modem, and snap the ferrite choke shut.

2.Install a cable tie behind the ferrite choke to prevent it from sliding along the cable.

Communications Software Installation

A personal computer commands and controls a dial modem through communications software. This software, which is installed on the PC, uses the AT command set to send instructions to the modem. A dumb asynchronous terminal, however, does not require this software since it can directly send AT commands.

The Model 3830 can be used with any major communications software. Refer to your software's user's guide for installation procedures. For an overview of how to use AT commands and a list of AT commands supported by the Model 3830, refer to Chapter 4, AT Command Set and S-Registers.

Modem Power-Up

Once your modem is properly connected to the DTE, dial 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 in which all front panel LEDs momentarily light (note that this also occurs on a reset of the modem), and the Power LED remains ON. The state of other LEDs depends on your modem's configuration.

On initial power-up, the modem is in Command mode. To verify that the modem is connected and functioning properly, enter the following:

TYPE: AT

PRESS: Enter (Return)

The screen displays OK.

If the modem does not return OK, refer to Appendix A,

Troubleshooting.

2-6

August 1998

3830-A2-GB91-30

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Paradyne 3830 manual Communications Software Installation, Modem Power-Up