User's Manual
V34bis Fax-modem - AJ 2885 P
AJ 2885 P - Page 19
4.
Front panel operation
4.1. Operating
modes
This chapter describes the operation of the six
LEDs front panel version of 2885 modem.
4.1.1. Operating
modes
The modem can operate in one of the four following modes:
1. IDLE MODE:
•
The modem enters the idle mode after powering up if it passes its power-up self test. Beeps
announcing the end of the test can be heard unless the speaker is turned off (see
corresponding command).
•
From this mode, the modem will enter in command mode by receiving a command from the
DTE, or in ONLINE mode if an automatic call is initiated from the front panel, or if a call is
received when the modem is configured to answer calls.
2. COMMAND MODE:
•
The modem enters the command mode when it receives a recognized command. In this
mode, commands are interpreted and executed. (Configuration set up - automatic call
request...). The modem also enters in command mode when it recognizes an escape
sequence in the data when in an on-line rude.
3. ONLINE MODE:
•
The on-line mode starts, when detecting a carrier signal from a remote modem or when
dialing is successfully completed.
4. TEST:
•
The test mode is selected when in a command mode using appropriate test commands.
4.1.2. The Front Panel
The front panel of the modem has six red LEDs and one push button.
The different LEDs indicate the state of the modem and the status of the self test sequence.
DTR
DSR/RI
CD
TXD RXD
LINE MODE
108
125/107
109
103
104
