iMcV-Giga-FiberLinX-III
61
APPENDIX C: TROUBLESHOOTING
If a fiber connection cannot be established, perform the following to make sure
that the fiber transceivers on the iMcV-Giga-FiberLinX-III are not over/under
driving the fiber receivers:
1. Make sure the fiber wavelength on both connected devices match (i.e.
both are 1310 nm single-mode fiber).
2. Make sure the twisted-pair port speed on the iMcV-Giga-FiberLinX-III
matches that of the end devices connected to the iMcV-Giga-FiberLinX-
III. Configure the iMcV-Giga-FiberLinX-III and its link partner to Auto
Negotiation or, if using Force mode, be sure speed and duplex match.
3. iMcV-Giga-FiberLinX-III allows end users to assign a VLAN tag to all
management traffic (SNMP and Telnet). It is important to understand that
IF using Telnet or iView
2
to assign a VLAN tag to management traffic
then, as soon as this setting is saved, the connectivity will be lost until the
PC becomes a member of the VLAN which was assigned to
management traffic.
4. If a VLAN tag has been assigned to management traffic and the end user
cannot re-establish a connection to the device via iView
2
or Telnet,
directly connect a PC to the device via the serial cable and review/modify
the changes made (reference section on serial port config).
