Lexmark Optra C710, Service Manual

Page: 212 / 369

3-14
Service Manual
5016-001
Serial Wrap Test
This test is used to check the operation of the serial port hardware
using a wrap plug. Each signal is tested.
To run the Serial Wrap Test:
1. Disconnect the serial interface cable and install the wrap plug.
2. Select the appropriate Serial Wrap Test from the menu.
The following screen displays: Serial X Wrap P:###### F:#####
•
X indicates which serial port is being tested,
(black = standard, 1 = optional serial port #1, 2 = optional serial
port #2 and 3 = operational serial port #3).
•
F represents the number of times the test has failed or finished
with errors. Initially 00000 is displayed for #####. The maximum
fail count is 99,999.
Note: The power indicator blinks indicating the test is running.
Each time the test finishes, the screen updates with the result. If the
test passes, the Pass Count increases by 1, however if the test fails,
one of the following failure messages displays for approximately 3
seconds and the Fail Count increases by 1:
Receive Status Interrupt Error Status Error
Receive Data Interrupt Error Transmit Data Interrupt Error
Transmit Empty Error Threshold Error
Receive Data Ready Error Break Interrupt Error
Framing Error Parity Error
Overrun Error Data Error
Data 232 Error Data 422 Error
FIFO Error DSR Error
DSR PIO Error DSR Interrupt Error
CTS Error CTS PIO Error CTS Interrupt Error
Once the maximum count is reached the test stops and the final
results display.
3. Press Return/Stop to exit the test.