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5 - 2 Trumpcard 14400/28800 Modem
Section Five
Local Modem Self-Test
To run a local self-test:
1. Put the Modem into interactive or local mode. Refer to the
communications software manual for this information.
2. Enter AT [ENTER]. The Modem will respond with OK. If you cannot
see the letters you entered, the local Modem echo is OFF. To turn on
the local Modem echo, enter ATE1 [ENTER].
If double characters appear on the screen, both the Modem and
software are set to local echo ON. To set the Modem to local echo off,
enter ATE0 [ENTER].
If 0 appears on your screen in place of OK, the numeric form result
codes have been enabled. To select textual result codes, enterATV1
[ENTER]. The Modem will respond with OK.
If the Modem does not respond:
• Ensure that the communications software setup procedure
was run after the Modem was installed. Setup must be run
each time the Modem is installed.
• Check that the COM port address of the serial port is identical
to the software COM port assignment.