Dell B-FCX manual Cable Type Connector Type, Range meters, Microns MHz*km or

5 Hardware specifications

FIGURE 44 Pin assignment and signalling for 10/100BaseTX and 1000BaseT ports

	10BaseT	100BaseTX and 1000BaseT
Pin Assignment	Pin Number MDI-X ports	Pin Number MDI-X ports

8

1

	1	RD+	1	RD+
	2	RD-	2	RD-
1	3	TD+	3	TD+
	4	Not used	4	CMT
	5	Not used	5	CMT
8	6	TD-	6	TD-
	7	Not used	7	CMT
	8	Not used	8	CMT

Cable specifications

Table 24 lists the specifications for the cables used with the 10/100 Ethernet ports. For information about supported transceivers, see Table 17 and Table 18.

NOTE

Cable installation and network configuration will affect overall transmission capability. The numbers provided below represent the accepted recommendations of the various standards. For network-specific recommendations, consult your local Dell reseller or system engineer.

TABLE 24	Cable length summary
		Cable Type	Connector Type	Core Diameter	Modal Bandwidth	Range (meters)
				(microns)	(MHz*km) or
					Wavelength (nm)
1000Base-BX-D		Single-mode	LC connector for SFP module	9	1490 nm	2	– 10000 (10km)
		Fiber (SMF)
1000Base-BX-U		SMF	LC connector for SFP module	9	1310 nm	2	– 10000 (10km)
1000Base-LHA		SMF	LC connector for SFP module	9	1550 nm	2	– 70000 (70km)
1000Base-LHB		SMF	LC connector for SFP module	9	1550 nm	2	– 120000
						(120km)
1000Base-LX		Multi-mode	LC connector for SFP module	62.5	500	2	– 550
		Fiber (MMF)
		MMF		50	400	2	– 550
		MMF		50	500	2	– 550
		SMF		9	1300 nm	2	– 10000
1000Base-SX		MMF	LC connector for SFP module	62.5/125	200	.5	– 275
		MMF		62.5/125	500	.5	– 550
		MMF		50/125	900	.5	– 595
		MMF		50/125	1500	.5	– 740
		MMF		50/125	2000	.5	– 860

62	PowerConnect B-FCX Switch Hardware Installation Guide
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