3174/3274 I-MUX
18
5.1.3 F
IBEROPTIC
C
ONNECTION
B
ETWEEN THE
MX330A-C
AND
MX330A-D.
TX and RX LEDs are off.
•
Incorrect slide-switch setting.
Set the slide switch on
the MX330A-C and MX330A-D to the FIBER
position. Make sure at least one terminal
connected to each multiplexor is on-line and
active and that the cabling does not exceed the
maximum length.
If the problem continues, replace the MX330A-C.
Only the TX LED lights.
•
Incorrect slide switch setting.
Set the slide switch on
the MX330A-D to FIBER and make sure at least
one terminal connected to each terminal
multiplexor is on-line and active.
•
The MX330A-C fiberoptic cable transmission line is
disconnected.
Check the F/O RX LED on the
MX330A-D. If it is off, check the MX330A-C
cable transmission line and connectors. Make
sure at least one terminal connected to each
terminal multiplexor is on-line and active.
• The AMP MX330A-D is faulty.
Verify that the F/O
TX LED on the MX330A-D lights. If not, check
segments T2, X3, T3, and X4. Make sure the
terminals are turned on and operating properly.
•
The MX330A-C fiberoptic cable reception line is
disconnected.
Check the TX LED on the MX330A-
D. If it is on, check the MX330A-C fiberoptic cable
reception line and connectors. Make sure at least
one terminal connected to each terminal
multiplexor is on-line and active.
5.1.4 C
OPPER
C
ONNECTION
B
ETWEEN THE
MX330A-C
AND
MX330A-D.
TX LED lights
• Incorrect slide-switch setting.
Set the slide switches
on the MX330A-C to COPPER. Make sure at
least one terminal connected to each terminal
multiplexor is on-line and active.
5.2 Configuration 2
In this configuration, you connect copper cable
between the MX330A-C and the IBM 3299/32.
NOTE
If you change the position of a slide
switch or disconnect and then
reconnect a cable during operation, an
abnormal indication results. Make sure
that at least one terminal connected to
the IBM 3299/32 is on-line and active.
All LEDs are off except for the Power LED.
•
The controller is turned off or is not operating
properly.
Check that the controller is turned on
and functional.
•
There is a faulty copper link between the controller and
the MX330A-C.
Check the copper cables and
connectors between the controller and the
MX330A-C. Make sure that at least one terminal
connected to the IBM 3299/32 is on-line and
active.
One or more of the four controller port DATA
LEDs is off.
•
Faulty port connection.
Check the copper cable
and connectors of the corresponding port
between the controller and the MX330A-C.
Make sure the terminals connected to the
IBM 3299/32 are on-line and active.
The MX330A-C copper link DATA LED is off.
• Incorrect slide-switch setting.
Set the slide switch
on the MX330A-C to COPPER. Make sure the
terminal connected to the IBM 3299/32 at one
of the addresses corresponding to the controller
port is on-line and active.
• There is a faulty copper link between the MX330A-C
and the IBM 3299/32.
Check the copper
connection between the MX330A-C and
the IBM 3299/32. Make sure the terminal
connected to the IBM 3299/32 at one of the
addresses corresponding to the controller port
is on-line and active.
If you have followed the troubleshooting steps
above and the problem persists, contact Black Box.
