Enterasys Networks VH-4802 manual 10Base-T/100Base-TX Ports, Base-LX Fiber Specifications

Figure 2-4 specifies the fiber types, bandwidth requirements, and length constraints for the Gigabit Ethernet long-wavelength fiber interface on the fiber optic media module.

Table 2-4. 1000Base-LX Fiber Specifications

Fiber Diameter		Modal Bandwidth @ 1300 nm	Range
(microns)
62.5 µm MMF		500 MHz/km	2-550 Meters
50	µm MMF	500 MHz/km	2-550 Meters
50	µm MMF	400 MHz/km	2-550 Meters
10	µm SMF	N/A	2-5000 Meters

10Base-T/100Base-TX Ports

The 10Base-T/100Base-TX ports use RJ-45 connectors. Figure 2-5 shows an RJ-45 connector being inserted into a port.

Figure 2-5. Inserting an RJ-45 Connector into a Port

The ports on the base unit are wired with the MDI-X function implemented. These ports interface to UTP cabling for connection to 10Base-T or 100Base-TX network segments or end-stations. These UTP connections meet the requirements of ISO 8877, specified by 10Base-T, Section 14 of the IEEE 802.3 specification. Workstations or servers can be connected to these ports using standard straight-through wired cables.

For connections to other switches or hubs, use an MDI port on the other device. If an MDI port is not available, a crossover cable may be necessary (refer to “MDI/MDI-X Crossover Cable Wiring” in Appendix A). See Table A-2, “10Base-T/100Base-TX Pinouts,” for 10Base-T/ 100Base-TX connector pin assignments.

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