5
Troubleshooting Features
The McBasic 10/100 media converters include two advanced troubleshooting
features to help locate “silent failures” on the network.
•
Transparency
•
Link Fault Detection (LFD)
Transparency
Transparency is only available in PNP mode. Transparency treats the connection
between the two end devices as if there were no media converters installed. In a
typical application where two media converters are installed between two copper-
based switches, the twisted pair cables as well as the fiber cable are seen as one
entity. If a fault occurs on any segment between the two end devices, link LEDs on
the end devices will go out. This prevents any failure on the link between the end
units from going undetected.
As stated, transparency is available when McBasic 10/100 is operating in Auto
Negotiation mode:
•
S6 PNP (AN) must be ON
•
S5 (LFD), S7 (Force) and S8 (10 or 100) must be OFF
Switch
Selective
Advertising
PNP
(AN)
Force
100
Force
10
Force
100 LFD
Force
10 LFD
LFD OFF
OFF
OFF
OFF
ON
ON
PNP OFF
ON
OFF
OFF
OFF
OFF
FORCE OFF OFF
ON
ON ON ON
10/100 OFF OFF
OFF
ON OFF ON
Содержание McBasic 10/100
Страница 1: ...McBasic 10 100 Operation Manual ...
