3Com 4005 Installation And Maintenance Manual

Also see for 4005: Key Information Guide Datasheet

Contents

3Com 4005 Installation And Maintenance Manual Manual pdf 53 page image

Gigabit Ethernet Interface Modules 53Gigabit EthernetInterface Modules3Com offers six Gigabit Ethernet modules to suit different cabling infrastructuresand density requirements. This section outlines the physical attributes of each module.1000BASE-SXGigabit EthernetModules Model Number — 3C16825 (1 SC-type port), 3C16842 (2 MT-RJ ports) Size — Occupies one slot in the Switch 4005 chassis Functionality — Layer 2 and Layer 3 switching Physical features: Release button and LED are used to remove the module. 1000BASE-SX ports provide a 1000 Mbps, full duplex connection. Module and Port LEDs — See Table 13 on page 56 for definitions. Front faceplate — See Figure 20 on page 55 for details. Cabling requirements: 50 micron Multimode fiber; maximum segment length is 500 m (1640 ft). 62.5 micron Multimode fiber; maximum segment Length is 220 m (722 ft).1000BASE-TGigabit EthernetModules Model Number — 3C16827 (1 port), 3C16841 (2 ports) Size — Occupies one slot in the Switch 4005 chassis Functionality — Layer 2 and Layer 3 switching Physical features: Release button and LED are used to remove the module. 1000BASE-T RJ-45 ports provide auto-negotiation for connection speed(10/100/1000), duplex mode, and flow control. Module and Port LEDs — See Table 13 on page 56 for definitions. Front faceplate — See Figure 20 on page 55 for details. Cabling requirements: Category 5 UTP or STP works for 1000BASE-T as long as all four pairs areconnected. For more reliable performance, we recommend using Category5E as noted in the ANSI/TIA/EIA-568-A-5 specification. Maximum segment length: 100 m (328 ft) for half duplex or full duplex. All RJ-45 ports on the module have automatic MDI/MDI-X detection at allspeeds. Table 12 lists the 1000BASE-T MDI and MDI-X port pinouts:Table 12 1000BASE-T (MDI/MDI-X) Port PinoutsPin MDI Signal Name MDI-X Signal Name1 Transmit Data plus (TD1+) Transmit Data plus (TD2+)2 Receive Data minus (RD1-) Receive Data minus (RD2-)3 Transmit Data plus (TD2+) Transmit Data plus (TD1+)4 Transmit Data plus (TD3+) Transmit Data plus (TD4+)5 Receive Data minus (RD3-) Receive Data minus (RD4-)6 Receive Data minus (RD2-) Receive Data minus (RD1-)7 Transmit Data plus (TD4+) Transmit Data plus (TD3+)8 Receive Data minus (RD4-) Receive Data minus (RD3-)