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Setting up a ZyXEL Modem with the AS-400
This is a typical application where the user will use both the synchronous feature of
the modem and the V.25bis option. Although we are using the IBM AS-400 com-
puter as an example, other mid-range systems and mainframes should be able to use
the same strings. Please note that some systems may require other settings depend-
ing on the nature of the system or the application that you are running. You can
consult our Technical Support Department if help is needed.
You can set up a ZyXEL modem either from the front panel or by using AT com-
mands, depending on whether you have an LCD-model or not.
The AT commands or settings that might be related to this setup are:
Most of the settings are already stored in Profile 2. All you need to change after the
reset from Profile 2 is the COMMAND SET. The changes can be made either by selec-
tion from the front panel menu or by issuing AT commands from an asynchronous
terminal.
Setting from the LCD front panel
1) Press the up arrow MENU key from the idle screen then the down arrow ENTER
key and you should see TERMINAL OPTIONS.
2) Press the right arrow key until the screen reads RESET = FACTORY DEFAULT.
Press the ENTER key (down arrow key) here and use the right arrow key to pick
PROFILE 2, then press the ENTER key again. The modem will display SYSTEM
RESETTING and you will then see the idle screen of the new setup.
Now press the MENU key (up arrow key), followed by the ENTER key. TERMI-
NAL OPTIONS should appear. Press the ENTER key, then press the right arrow
key until you reach COMMAND SET.
3) Press ENTER, then the right arrow key until V.25bis should appear in the dis-
play. Press ENTER to select it.
Link Speed Multi-Auto
Data Format SYNC for AS-400 in most cases; AT&M3
Command Set V.25bis; AT*I1
DTR Option 108.2, Data Terminal Ready; AT&D2
RTS Option CTS tracks RTS; AT&R0
DCD Option Tracks Carrier; AT&C1
DSR Option CCITT (ITU-T), modem control; AT&S1
Sync Clock Internal; AT&X0
Line Type Dial-up line; AT&Ln