Modem Power-Up; Selecting Factory Configuration Options - Paradyne Comsphere 3920Plus Installation And Operation Manual

COMSPHERE 392xPlus Modems

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.
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 the
Test section in Chapter 3.

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 392xPlus modems have six factory preset templates that contain the most commonly used
configuration options (straps) for Synchronous Leased (Answer or Originate), Asynchronous
Leased (Answer or Originate), Trellis Multipoint (Control or Tributary), Asynchronous Dial,
Synchronous Dial, and UNIX Dial hardware network configurations. Your modem ships from the
factory with the Synchronous Leased (Answer) default configuration options stored in memory. If
Synchronous Leased (Originate), Asynchronous Leased (Answer or Originate), Trellis Multipoint
(TMp) (Control or Tributary), Async Dial, Sync Dial, or UNIX Dial is more appropriate for your
configuration, then you must change the factory setting using either the modem's DCP (as
described in the following sections) or the AT command set.
The purpose of having preset configurations is so that you can have a "head start" in getting your
modem operating and reducing 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.
2-6
Power On Selftst
Passed
F1 F2 F3
April 1995 3920-A2-GN31-10