Installation guide

Terminal and Personal Computer Problems
10-4
b. Verify that the problem port has a Dedicated Service defined. If a dedicated
service is defined, verify that the service is available. If the service is available,
verify that the problem port and the service have a common group code. See the
section Verify LAT Group Codes (page 2-4).
c. Verify that Access is set to Local or Dynamic. If Access is set to Dynamic, set the
Interrupts characteristic to Enabled.
With Access set to Local, the terminal user can always use the terminal interactively.
With Access set to Dynamic and Interrupts Enabled, the terminal user can stop a
remote session and then use the terminal interactively. With Access set to Remote or
None, the terminal does not respond to user input. For more information on the Access
characteristic, refer to the Network Access Software Management Guide.
2. Enter the following command. Substitute the port number for 1:
Local> SHOW PORT 1 STATUS
Port 1: Michael Server: MMS1
Access: Local Current Service: GALAXY
Status: Connected Current Node: SATURN
Sessions: 2 Current Port:
Input XOFFed: No Output Signals: DTR
Output XOFFed: Yes Input Signals: DSR
Verify the Output XOFFed status field in the display. If this field is Yes, the port has
XOFFed communications. Enter a "clear comm" on the device or, using a privileged
port, log out the problem port twice (the second logout bypasses any flow control
problems). For more information on flow control, refer to the Network Access
Software Management Guide.
3. If the terminal is not operating, switch the terminal to off-line mode. (Refer to the
operator’s manual.) If the problem persists when you enter characters, the terminal is
probably faulty. Verify the operation of the terminal at another location. Use the same
device characteristics when verifying the operation.
4. Verify the port hardware to determine if it is fault. See the section Verifying a Port for
Hardware Failure (page 10-8).
Characters Not Displayed on the Device
If characters are not displayed on the device, verify that Flow Control is something other
than None. Enter the following command. Substitute the port number for 1: