Home WTI User's Guides
Warnings and Cautions
1. Introduction
2. Unit Description
2.2. Back Panel
3. Getting Started
3.1. Communication Parameters
3.2. Apply Power to the APS-16
3.3. Connecting your PC to the APS-16
3.4. Communicating with the APS-16 Unit
4. Hardware Installation
4.1. Configure Setup Switches
4.1.1. Default Baud Rate
4.2. Initialize Unit to Default Settings
4.3. Connecting Devices to the APS-16
5. Configuration
5.1. Access to the APS-16 Command Mode
5.2. Defining and Reading the Site I.D.
5.3. Port Configuration
5.3.1. Configuration Conventions
5.3.2. Port Modes
5.3.3. Command Availability
5.3.4. Port Configuration Menu
6. Operation
6.1. Any-to-Any Mode
6.1.1. Port Connection and Disconnection Using ASCII Commands to Connect Ports Disconnecting Ports
6.1.2. Defining Hunt Groups
6.2. Passive Mode
6.3. Buffer Mode
6.3.1. Reading Data from Buffer Mode Ports
6.3.2. Port Buffers
6.4. Modem Mode
7. Saving Configuration Parameters
7.1. Sending Parameters to a File
7.2. Restoring Saved Parameters
8. Command Reference Guide
8.1. Command Conventions
8.2. Command Response
8.3. Command Summary
8.4. Command Set
A. RS-232 Port Interface
B. Specifications
C. Customer Service

5.3.4. Port Configuration Menu


The Port Configuration Menu is used to select options for each port. Parameters and options selected via the Port Configuration Menu will stay in effect until the unit is initialized. After initialization, parameters will revert to the defaults specified by the Setup Switches.

After parameters have been selected, the configuration can be saved to an ASCII file on your PC. Later, if the configuration is altered or deleted, the file with the saved parameters can be used to restore the unit to its former state. Section 7 describes the procedure for saving and restoring configuration parameters.

To select port parameters, proceed as follows:

1                     Access the Command Mode.

2                     Type /P, followed by the number of the port to be configured, and press [Enter]. For example, to configure Port 2, type /P 2 [Enter]. The Port Configuration menu will appear as shown in Figure 5.1. If the /P Command is entered without an argument to specify the port number


(e.g. /P [Enter]), the configuration menu for your resident port will be displayed. Note that the /P command is not available to “Basic” ports.



1, �OR� NAME: �un�e�ine�� 2, �ASS�ORD: �un�e�ine�� 3, �AUD RA�E: 4, �I�S��ARI��: None 5, S�O� �I�S: 1


7, MODE: An� to An� , COMMANDS: A�� , �O�O�� CHAR:

1 , SEQUENCE DISC: O� 11, �IMEOU� DISC: 15 Mi� 12, MESSA�E ���E: Ver�os� 13, ECHO: O�

Enter� ��� previous port� ��� next port� ���� change para�eter �C�R� �� exit ,,,

Figure 5.1: Port Configuration Menu (Port 2 Shown)

The Port Configuration menu offers the following options:

•                      1. Port Name: (Up to eight characters) Allows the user to assign a name to the port.

•                      2. Password: Allows the user to define a password which protects Command Mode access from this port. This password will also be required when a caller attempts to enter the Command Mode via modem. When the password is undefined, password protection is disabled.

•                      3. Baud Rate: Selects the baud rate for the port. Can be set to any standard rate from 300 to 115.2K bps.

•                      4. Bits/Parity: Sets data bits and parity for this port.

•                      5. Stop Bits: Sets stop bits for this port.

•                      6. Handshake: Selects the handshake format for this port. Can be set to XON/XOFF, RTS/CTS (hardware), Both, or None.


7. Mode: Defines the operation mode for this port. The user can select Any-to-Any Mode, Passive Mode, Buffer Mode, or Modem Mode. Note that Ports 1 and 2 cannot be configured for Passive Mode or Buffer Mode.

When the Modem Mode is selected, the unit will display additional prompts that are used to select the following parameters:

•                      71. Reset String: When necessary, this prompt can be used to re-define the modem reset message. The Reset String is sent prior to the Initialization string in order to provide a common initial setting for modem parameters. The default Reset Message is ATZ.

•                      72. Initialization String: Defines a command string that is sent after the Reset String in order to initialize modem parameters to settings required by your application. The default Initialization String is AT&C1$D2S0=1.

•                      73. Hang-Up String: Defines the modem hang-up message. Although the APS-16 will pulse the DTR line in order to hang-up an attached modem, the Hang-Up string is often useful for controlling modems that do not use the DTR line. In the default state, the Hang-Up String is not defined.


•                      8. Commands: Determines which commands will be available to this port. The port can be set to recognize only Basic commands (user), or All Commands (Administrator). The Basic command level is not available to Ports 1 and 2.

•                      9. Logoff Char.: Defines the Logoff Character for this port. The Logoff Character determines the disconnect sequence that must be issued at this port in order to disconnect from a second port (Resident Disconnect). When defining the Logoff Character, note the following:


The default Logoff Character is "+". As a result, the default Resident Disconnect Sequence is [Enter]+++[Enter].

The Resident Disconnect Sequence uses the format [Enter]###[Enter], where # is the Logoff Character.

The Logoff Character should only be re-defined when the default Resident Disconnect Sequence is not compatible with your application.


10. Sequence Disc: Enables or disables the Resident Disconnect Sequence.

•                      11. Timeout Disc: Enables and selects the Timeout Period for this port. When the Timeout Disconnect is enabled, and the port does not receive or transmit data for the specified Timeout Period, the port will disconnect.

•                      12. Message Type: Selects the type of messages that will be sent in response to commands. The user can select Verbose (English Text), Terse (Numeric / Abbreviation), or Quiet Mode (No Response).

•                      13. Echo: Enables or Disables the command echo.


3. (Optional) After all ports have been configured, save the user-selected configurations parameters to an ASCII file as described in Section 7.