B&B Electronics 856-14205--29 - Manual - Manual (Page 69)

Appendix C: Troubleshooting
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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 the end user 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).