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Some Cisco SwitchProbe devices require a fiber-optic splitter tap to monitor the network in full-duplex mode. One fiber-optic splitter tap is included with the device.
This document provides instructions for installing the fiber-optic splitter tap. The splitter tap is passive—link integrity is maintained whether the device is on or off.
The fiber-optic splitter tap kit consists of the following items:
The fiber-optic splitter tap (Figure 1) contains three female SC duplex connection ports, labeled A, B, and Probe.
To connect the full-duplex 100BaseFX ports of the Multiport Fast Ethernet SwitchProbe device to two switches, follow these steps:
Step 1 Connect a fiber-optic splitter tap to the full-duplex 100BaseFX ports.
Step 2 Connect a fiber-optic splitter tap to the two switches.
The fiber-optic splitter tap kit includes a four-foot SC-duplex-to-dual-SC-duplex multimode fiber-optic cable.
The multimode duplex SC connectors only contain receive (Rx) connections. To connect the fiber-optic splitter tap to full-duplex 100BaseFX ports, see Figure 2 and follow these steps:
Step 1 Insert one end of the dual fiber-optic cable labeled DTE into the top port of a full-duplex 100BaseFX interface (the top port is the DTE port).
Step 2 Insert the other end of the dual fiber-optic cable labeled DCE into the bottom port of the same full-duplex 100BaseFX interface (the bottom port is the DCE port).
Step 3 Insert the end of the fiber-optic cable (the cable with only one connector) into the port labeled Probe on the fiber-optic splitter tap.
Step 4 Repeat the procedure for each tap unit.
After you connect the SwitchProbe device to the tap, you must connect the tap to the network segment.
Depending on the type of cable you used between each switch and the tap, there are three possible configurations to connect the two switches to the fiber-optic splitter tap:
To connect a 100BaseFX network with SC connectors to a fiber-optic splitter tap, see Figure 3 and follow these steps:
Step 1 Switch 1 and Switch 2 are connected with a cable during network operation. Disconnect the cable from Switch 1 so only Switch 2 has a cable attached to it.
Step 2 Connect the end of this cable (Switch 2) to interface B of the fiber-optic splitter tap.
Step 3 Use the SC-to-SC cable originally included with the SwitchProbe device to connect Switch 1 to interface A of the fiber-optic splitter tap.
To connect a 100BaseFX network with ST connectors to a fiber-optic splitter tap, see Figure 4 and follow these steps:
Step 1 Switch 1 and Switch 2 are connected with a cable during network operation. Disconnect the cable from Switch 1 so only Switch 2 has a cable attached to it.
Step 2 Connect the end of this cable (Switch 2) to the ST-to-ST coupler.
Step 3 Use the SC-to-ST cable included with this kit to connect the ST-to-ST coupler to interface B of the fiber-optic splitter tap. (Plug the ST connector into the ST-to-ST coupler and plug the SC connector into the tap.)
Step 4 Use the SC-to-ST cable included with the SwitchProbe device to connect Switch 1 to interface A of the fiber-optic splitter tap. (Plug the ST connector into Switch 1 and plug the SC connector into the tap.)
To connect a 100BaseFX network with MIC to a fiber-optic splitter tap, see Figure 5, and follow these steps:
Step 1 Switch 1 and Switch 2 are connected with a cable during network operation. Disconnect the cable from Switch 1 so only Switch 2 has a cable attached to it.
Step 2 Connect the end of this cable (Switch 2) to the ST-to-MIC coupler.
Step 3 Use the SC-to-ST cable included with this kit to connect the ST-to-MIC coupler to interface B of the fiber-optic splitter tap. (Plug the ST connector into the ST-to-MIC coupler and plug the SC connector into the tap.)
Step 4 Use the SC-to-MIC cable included with the SwitchProbe device to connect Switch 1 to interface A of the fiber-optic splitter tap. (Plug the MIC connector into Switch 1 and plug the SC connector into the tap.)
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Posted: Fri Sep 6 19:54:37 PDT 2002
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