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APS-8M Asynchronous Port Switch; User’s Guide
When the Port Mode is set to Modem Mode, the menu will include
additional prompts (see Figure 5.6), which are used to define the
following:
61. Reset String: If necessary, this prompt can re-define the modem
reset string, which is sent prior to the Initialization string. (Up to 48
Chars., Default = ATZ).
62. Initialization String: Defines a command string that can be sent to
initialize a modem to settings required by your application. (Up to
48 Characters, Defaults: Port 1 through 7 = AT&C1$D2S0=1;
Port 8 =ATM0&C1$D2S0=1).
63. Hang-Up String: Although the APS will pulse the DTR line to
hang-up an attached modem, the Hang-Up string is often useful
for controlling modems that do not use the DTR line. (Up to 48
Characters, Default = undefined).
Notes:
• When communicating with the APS via modem, communication
parameters will not be changed until you exit from command mode
and discontinue the modem connection to the unit.
• For a list of basic AT commands for the Internal Modem, please
refer to Section 6. For a complete listing of all available AT
commands and S-Registers, please refer to the "MT5634 Modem AT
Command Set" document in our User’s Guide Archive at the WTI
web site: http://www.wti.com/guides/guidarch.htm.
PORT PARAMETERS #03:
1. Port Name: (undefined)
2. Baud Rate: 9600
3. Bits/Parity: 8-None
4. Stop Bits: 1
5. Handshake Mode: RTS/CTS
6. Port Mode: Modem
61. Reset String: ATZ
62. Init String: AT&C1&D2S0=1
63. Hang-Up String: (undefined)
7. Supervisor Mode: Permit
8. Logoff Character: ^X
9. Sequence Disconnect: One Character Only
10. Timeout Disconnect: 15 Min
11. Response Type: Verbose
12. Command Echo: On
13. Accept Break: Yes
14. Invalid Access Lockout: Off
Enter: “<” previous port,
“>” next port,
<ESC> exit ...
Figure 5.6: Port Parameters Menu; Modem Mode (Port 3 Shown)