Tyco Electronics 0-1591046-X Trouble Shooting, Power, Data Problems, Optional Fiber Uplink Module

16 Port Ethernet Switch With Optional Fiber Port

Trouble Shooting

Power

1.Verify that the AC power is present and that the external fusing is correct and compliant with national requirements. The green Power LED should be lit to indicate that the switch is powered correctly.

Data Problems

1.Ensure that the Ethernet partner device (switch, router, NIC etc) connected to the RJ-45 UTP port of the switch is set for auto- negotiation. If this Ethernet partner device does not support auto-negotiation, then you need to program that device to operate at 100Mbit/s half duplex or 10Mbit/s half duplex. If this is not possible, then the Tyco switch can be programmed from the front panel console port to apply the required speed and duplex modes to match the legacy partner equipment. See the web site for the console programming guide.

If the switch and the partner device cannot auto-negotiate then the units automatically revert to the lower level of half-duplex operation. This issue is common to all auto-negotiating Ethernet devices and symptoms of incorrect negotiation include data errors and fragmented packets.

2.Auto-negotiation can take up to 30 seconds to complete depending on the partner device.

3.Ensure that the switch is not overheating due to obstructed airflow around the side vents.

Optional Fiber Uplink Module

1.Select the proper fiber cable for your network. The multi-mode module must use multi-mode fiber cable and the single-mode module must use single-mode fiber cable. See page 4 for the supported cable types and installation settings.

2.Ensure that the optical loss budget of the fiber uplink is within the limits specified on page 8. Note that optical patch cables and other joints and splices can introduce additional optical losses that reduce the working distance of the fiber link.

If you still have problems and need further advice, please see Technical Support section on page 2 to obtain more information.

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