Chapter 6: Troubleshooting - Advantech B+B SmartWorx IMcV-Giga-FiberLinX-III User Manual

CHAPTER 6: TROUBLESHOOTING

• If two iMcV-Giga-FiberLinX-III Host/Remote units are not communicating
properly, make sure one is a Host and the other is a Remote. If the second
unit is not configured as a Remote, it will be recognized as a Standalone unit
and the Host and Remote units will not communicate with each other
properly. Setting the OPTICS port management DIP Switch 3 to the ON
position on both modules will allow performing a simple PING test. This is
possible only if PINGing from the computer through the optics uplink port,
which is highly unusual. The EXT or data switch must be enabled and
connected to the computer to ping either device.
• If a link on a twisted-pair port cannot be established, make sure the cable is
in working order. If not, replace the cable (iMcV-Giga-FiberLinX-III includes
AutoCross; a link should be detected regardless of the CAT5 cable type).
• If a fiber link cannot be established, make sure the fiber transceivers on
iMcV-Giga-FiberLinX-III are not over/under driving the fiber receivers. Make
sure the fiber mode and wavelength on both iMcV-Giga-FiberLinX-III units
match (i.e., both are 1310 nm single-mode fiber).
• Make sure the port speeds on iMcV-Giga-FiberLinX-III match those on the
end devices connected to iMcV-Giga-FiberLinX-III. B+B SmartWorx
recommends configuring all connected devices to Auto Negotiation, or if
using Force mode, ensure speed and duplex settings match.
• If using single-strand fiber, make sure the pair of devices is compatible
single-strand fiber devices. Example: an iMcV-Giga-FiberLinX-III TX/SSFX-
SM1310-SC, which transmits 1310 nm and receives 1550 nm, must be
connected to a device that transmits 1550 nm and receives 1310 nm.
• If using an iMcV-Giga-FiberLinX-III unit with an SFP port, and it is not
functioning properly or at all, make sure the installed SFP module is the
correct speed (1000 Mbps).
• If management is not functioning properly, make sure the DIP Switch
settings are accurate for the port to be managed.
• To restore the unit to factory default settings, use the cleandb function via
the serial port (refer to the Device-Specific Options from the Command
Line section for more information). This is especially helpful if the module
may have been configured improperly. If restarting to factory defaults is
necessary, B+B SmartWorx recommends using this function on both units in
Host/Remote applications, then reconfiguring all settings.
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