Communications Port Does Not Work - VeriFone MX 800 Series Troubleshooting Manual

Check the
encryption keys
Communications
Port Does Not
Work
4
MX 800 S T
ERIES ROUBLESHOOTING
1
Press the SECURITY icon.
2
Press the KEY STATUS icon.
3
Press the right arrow to go to the second diagnostics screen.
4
The first screen will show MK (Master Key) status.
•
If you are using Master Keys, there should be an indication that one or
more are loaded.
•
If you are not using Master Keys, "No Key" will be displayed for each of the
ten Master Key slots.
5
Touch the screen or press Enter to go to the DUKPT key status screen.
•
If you are using DUKPT keys, there should be an indication that one or
more are loaded.
•
If you are not using DUKPT keys, "No Key" will be displayed for each of
the three DUKPT key engines (See chapter 2).
6
If "No Key" is shown for all master key slots and all DUKPT engines, there
was probably a security event that caused the terminal to erase all keys and
applications. Send the terminal in for repair.
The following are the corrective steps to be taken if a communications port does
not work.
1
Check whether the device connected to the port of the multiport cable of the
MX 800 Series terminal has power and is functioning correctly. If possible,
perform a self-test on the device.
2
The cable connecting the optional device to the MX 800 Series terminal's
communications port may be defective. Try a different communications cable.
3
If the problem persists, contact your local VeriFone representative or service
provider for assistance.
G
UIDE