Asante Technologies 1012 - Manual (Page 49)

Page 2-15
Configuring a Redundant Link
BNC:
According to the priority scheme described above, BNC will not
be the active uplink if either an AUI or 10T connection exists. Due
to this ordering, if BNC is selected, it is assumed that this medium
is the only type available.
There are different redundant link cabling schemes which can be
used to provide increased network reliability. This example illus-
trates one possible scenario. The concepts here can be applied to
other possible redundant cabling schemes.
Figure 2-8 Redundant Links
An Example
Configuration
RJ21 10 BASE-T PORTS IN or OUT AUI PARTITION
TRAFFIC
RS232
THROUGH
AMS LINK
UP=PC DOWN=TERMINAL
END
3-IN-1 UPLINK
BNC
Spare Fuse in Fuse Holder
2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating
RJ21 10 BASE-T PORTS IN or OUT AUI PARTITION
TRAFFIC
RS232
THROUGH
AMS LINK
UP=PC DOWN=TERMINAL
END
3-IN-1 UPLINK
BNC Spare Fuse in Fuse Holder
2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating
Thin Ethernet Backbone
for Segment B connected to
bridge external port with a MAU
RJ21 10 BASE-T PORTS IN or OUT AUI PARTITION
TRAFFIC
RS232
THROUGH
AMS LINK
UP=PC DOWN=TERMINAL
END
3-IN-1 UPLINK
BNC Spare Fuse in Fuse Holder
2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating
To Segment A Backbone
Thin Ethernet Backbone for Segment A
connected to 3in1 Port BNC connector
(bridge hub port); secondary path in redundant
link
AsantéBridge 1012 (Main Hub)
AsantéHub 1012
AsantéHub 1012
RJ21 10 BASE-T PORTS IN or OUT AUI PARTITION
TRAFFIC
RS232
THROUGH
AMS LINK
UP=PC
DOWN=TERMINAL
END
3-IN-1 UPLINK
BNC Spare Fuse in Fuse Holder
2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating
AsantéHub 1012
Terminator
10BaseT cables connected
from AsanteBridge front
panel RJ45 ports to the
AsanteHub rear panel 3in1
RJ45 OUT ports. This Segment
A (bridge hub port) and the
primary path in the redundant
link.
Thin Ethernet Backbone connected to 3in1 Port
BNC connector; secondary path in redundant
link
Thin Ethernet Backbone connected to 3in1 Port
BNC connector; secondary path in redundant
link
Segment B
Segment A