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88
en | Dial-In Networking
Notice!
The next step of this procedure requires that the AEC2.1 be reset. If the controller is
currently in use, then you may want to back up the controller's database before continuing.
2.
3.
4.
15.3
Dial-in Security Features
The AEC2.1 includes some additional security features to provide protection against
unauthorized access to the controller over the dial-in connection. These include the following:
First, a special login ID and password is used to establish the dial-in session. Once the session
has been established, then a second login is required, using a regular user id and password, to
gain access to the controller. The special login id and password, which are used only with dial-
in networking, is user configured.
Second, there is a parameter that specifies the maximum number of unsuccessful login
attempts that will be allowed. When this value is reached without a successful dial-in login,
the controller will automatically disable the dial-in capability for a user-specified period of
time.
The default settings for the security features are:
User ID - PPP
Password - 8088
Number of illegal password attempts - Undefined
2018.11 | 1.0.6 | F.01U.122.796
Reset the AEC2.1 and wait for the controller to complete its initialisation process. This
typically takes about 90 seconds.
Immediately upon the completion of the initialisation process, the controller senses the
presence of the modem and sends it a serial of initialisation commands. By carefully
watching the lights on the front of the modem, you can see the command transfer taking
place. The SD and RD indicators will flash faintly for a couple of seconds as the
initialisation commands are sent to the modem. The final command in the series instructs
the modem to save the current setup. The commands sent to the modem by the
controller are listed below.
attTone mode
atzReset
ate0Echo Off
ats0=1One ring to autoanswer
atb0Selects the ITU-T V.25 answer sequence
at&b1Fixed DTE speed (serial port rate)
at&wSave settings
Test the modem and modem-to-controller wiring by dialling the phone number to which
the modem is connected from any standard telephone. The modem should answer on the
first ring and you should hear the usual tones indicating that the modem is attempting to
synchronize with the calling party. If modem tones are heard, then this test is successful
and you can hang up the phone.
This completes the modem installation. Proceed below to configure the security features
associated with AEC2.1 dial-in networking.
Hardware Installation Manual
Access Easy Controller 2.1
Robert Bosch (SEA) Pte Ltd
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