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SIBTF10xx-1xx-Mx
24-Hour Technical Support: 1-800-260-1312 International: 00-1-952-941-7600
Operation -- continued
Product features -- continued
Auto-Negotiation
The Auto-Negotiation feature allows the SIBTF10xx-1xx industrial switch to
configure itself to achieve the best possible mode of operation over a link
automatically. The industrial switch broadcasts its speed (10 Mb/s or 100 Mb/s) and
duplex capabilities (full or half) to the other devices and negotiates the best mode of
operation. Auto-Negotiation allows quick and easy installation because the optimal
link is established automatically.
In a scenario where the industrial switch is linked to a non-negotiating device, the
admin person may want to disable Auto-Negotiation. In this instance, the mode of
operation will drop to the lowest common denominator between the two devices: 10
Mb/s, half-duplex. Disabling this feature provides the ability to force the connection
to the best mode of operation.
Link Pass-Through
The SIBTF10xx-110 industrial switch provides a Link Pass-Through feature, which
allows monitoring its fiber (FX) and copper (RX) (receive) ports for signal loss. Refer
to Figure 14, in the event of an RX signal loss (1), the industrial switch will
automatically disable the TX (transmit) signal (2) thus “passing through” the link loss
(3). The far-end device is automatically notified of the link loss (4), which prevents
date losses by transmitting data over an invalid link unknowingly.
Fiber Redundancy
The SIBTF10xx-130 industrial switch provides stable, fiber redundancy in highly
critical Ethernet and Fast Ethernet segments.
When the fiber redundancy feature is enabled, only one fiber connection (primary) is
active at a time. This primary connection is in the forwarding stage while the other
fiber connection (secondary) is put in the standby state.
When failure on the primary fiber connection occurs, it is detected by the switch. The
secondary connection is activated and becomes the primary link. The original fiber
link is disabled until the failure on the primary fiber connection is corrected. Once
corrected, the original order is restored.
Note: The fiber redundancy feature is for point-to-point applications, and not for
redundant ring applications.
4
1
Media
Converter A
Media
Converter B
Near-End
Device
Far-End
Device
original fault
on the co
pp
er link
media converter B
disables the co
pp
er lin
k
media converter A
disables the fiber TX link
3
2
media converter B
loses the fiber RX link
Figure 14: Link Pass-Through
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Operation -- continued
AutoCross™
When the AutoCross feature is activated, it allows the use of straight-through MDI or
crossover MDI-X cables for connecting to 10Base-T or 100Base-TX devices.
AutoCross determines the characteristics of the connection and automatically
configures the unit to link up, regardless of the cable configuration, either MDI or
MDI-X.
Replacing the fuse
Note: The fuse may be “hot swapped” (i.e., replaced while the industrial switch is in
operation) provided the power source associated with the burned-out fuse has
been disconnected. For example, the primary fuse may be replaced provided
that power to the primary power contacts has been turned OFF.
To replace the fuse, view Figure 15, and then do the following:
1. Turn OFF and disconnect the power source associated with the blown fuse.
2. Using a flat-head screwdriver, unscrew (counter-clockwise) and remove the fuse
holder. See Figure 15.
3. Carefully remove the fuse from the fuse holder.
4. Install a same size and rated (2.5 A, 250 V) replacement fuse in the fuse holder.
5. Insert the fuse holder with the fuse into the switch and rotate clockwise to secure.
6. Re-connect and turn ON the power source.
7. Verify that the industrial switch is powered UP: “Power Good” LED on the upper
front panel will be ON.
Figure 15: Fuse Replacement
N
L
PRI.
FUSE
2.5A
250V
PRI.
Power
Good
Industrial
Switch
SIBFT
PRI.
Fuse
Fuse Holder
Front Panel