Cisco Systems 7200 VXR 3-22, SFP Module Port Cabling Specifications, Cable Distance, Minimum

Chapter 3 Installing a Cisco 7200 VXR Router

Connecting I/O Controller, NPE-G1, or NPE-G2 Cables

Table 3-2	SFP Module Port Cabling Specifications
						Modal
		Wavelength			Core Size	Bandwidth
SFP Module		(nm)		Fiber Type	(microns)	(MHz/km)	Cable Distance
100BASE-FX		1270	(min)	MMF	62.5	500	1.24 miles (2
SFP-GE-F=		1300	(typical)		62.5		km, 6562 ft)
		1380	(max)		50.0
					50.0
1000BASE-LX/LH		1300		MMF1	62.5	500	1804 ft (550 m)
SFP-GE-L=					50.0	400	1804 ft (550 m)
					50.0	500	1804 ft (550 m)
				SMF	9/10	—	6.2 miles (10
							km)
1000BASE-SX		850		MMF	62.5	160	722 ft (220 m)
SFP-GE-S=					62.5	200	902 ft (275 m)
					50.0	400	1640 ft (500 m)
					50.0	500	1804 ft (550 m)
1000BASE-ZX		1550		SMF	9/10	—	43.5 miles (70
SFP-GE-Z=							km)

1.A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, 1000BASE-LX/LH SFP modules, and a short link distance (tens of meters) can cause transceiver saturation resulting in an elevated bit error rate (BER). In addition, when using the LX/LH SFP module with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord between the SFP module and the MMF cable on both the transmit and receive ends of the link. The mode-conditioning patch cord is required for link distances greater than 984 ft (300 m).

Table 3-3provides SFP module power information.

Table 3-3	SFP Module Transmit Power, Receive Power, and Power Budget
SFP Module			Transmit Power			Receive Power		Power Budget
		Minimum		Maximum	Minimum		Maximum
SFP-GE-F=
For 50/125 cabling		-23.5		-14	-33.5		-11.8	10 dBm
For 62.5/125 cabling		-20		-14	-33.5		-11.8	13.5 dBm
SFP-GE-L=		–9.5 dBm1		–3 dBm3	–20 dBm		–3 dBm	7.5 dBm4
		–11.5dBm2						8.0 dBm5
SFP-GE-S=		–9.5 dBm6		–4 dBm6	–17 dBm		0 dBm	7.5 dBm7
SFP-GE-Z=		0 dBm		5 dBm	–23 dBm		0 dBm	–24 dBm

1.For fiber types 9/125 μm SMF.

2.For fiber types 62.5/125 μm MMF and 50/125 μm MMF.

3.For fiber types 9/125 μm SMF, 62.5/125 μm MMF, and 50/125 μm MMF.

4.For fiber types 50/125 μm MMF and 62.5/125 μm MMF.

5.For fiber type 10 μm SMF.

6.For fiber types 50/125 μm, NA = 0.20 fiber and 62.5/125 μm, NA = 0.275 fiber.

7.For fiber types 50/125 μm MMF and 62.5/125 μm MMF.

Cisco 7200 VXR Installation and Configuration Guide

3-22 OL-5013-09