B&B Electronics EIR410-2SFP-T - Manual - Manual (Page 11)

Hardware Description
7 Manual Documentation Number EIR405-T – 0912m
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or to other switches or hubs. In straight-through cables, pins 1, 2, 3, and 6, at one end of the
cable, are connected straight through to pins 1, 2, 3 and 6 at the other end of the cable. The
table below shows the 10BASE-T / 100BASE-TX MDI and MDI-X port pin outs.
Pin MDI-X Signal Name MDI Signal Name
1 Receive Data plus (RD+) Transmit Data plus (TD+)
2 Receive Data minus (RD-) Transmit Data minus (TD-)
3 Transmit Data plus (TD+) Receive Data plus (RD+)
6 Transmit Data minus (TD-) Receive Data minus (RD-)
Straight Through Cable Schematic
Cross Over Cable Schematic
• 2 Gigabit Copper/SFP (mini-GBIC) combo ports:
The EIR410-2SFP-T has two auto-detect Giga ports—copper/Fiber combo ports. The
Gigabit Copper (10/100/1000T) ports should use Category 5e or above UTP/STP cable for
connection. The SFP slots support dual mode which can switch the connection speed
between 100 and 1000Mbps. These SFP slots can be used to connect the network segment
with single or multi-mode fiber. You must choose appropriate mini-GBIC module to plug
into the slots. Make sure the module is aligned correctly and then slide the module into the