Cisco Systems 7200 VXR manual 3-27, GBIC Port Cabling Specifications, Modal Bandwidth

Chapter 3 Installing a Cisco 7200 VXR Router

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

is 6.5 feet (2 m), and the minimum link distance for the WS-G5487 or GBIC-ZX-SM is 6.2 miles (10 km) with an 8-dB attenuator installed at each end of the link. Without attenuators, the minimum link distance for the WS-G5487= or GBIC-ZX-SM is 24.9 miles (40 km).

Table 3-8	GBIC Port Cabling Specifications
		Wavelength		Core Size	Modal Bandwidth	Maximum
GBIC		(nm)	Fiber Type	(micron)	(MHz/km)	Cable Distance
WS-G5484=		850	MMF1	62.5	160	722 ft (220 m)
or
				62.5	200	902 ft (275 m)
GBIC-SX=
				50.0	400	1640 ft (500 m)
				50.0	500	1804 ft (550 m)
WS-G5486=		1300	MMF2 and	62.5	500	1804 ft (550 m)
or			SMF
				50.0	400	1804 ft (550 m)
GBIC-LX/LH=
				50.0	500	1804 ft (550 m)
				9/10	—	6.2 miles (10 km)
WS-G5487=		1550	SMF	9/10	—	43.5 miles (70 km)
or
			SMF3	8	—	62.1 miles (100 km)
GBIC-ZX-SM=

1.Multimode fiber (MMF) only.

2.A mode-conditioning patch cord is required.

When using the WS-G5486= or GBIC-LX/LH with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord between the GBIC and the MMF cable on both the transmit and the receive ends of the link when link distances are greater than 984 ft (300 m).

We do not recommend using the WS-G5486= or GBIC-LX/LH and MMF with no patch cord for very short link distance (tens of meters). The result could be an elevated bit error rate (BER).

3.Dispersion-shifted single-mode fiber-optic cable.

Table 3-10provides power requirements and power budget information.

Table 3-9	GBIC Power Requirements and Power Budget
		Transmit Power			Receive Power
GBIC		Minimum	Maximum		Minimum	Maximum		Power Budget
WS-G5484 or GBIC-SX		–9.5 dBm1		–4 dBm1	–17 dBm		0 dBm	7.5 dBm2
WS-G5486 or		–9.5 dBm3		–3 dBm5	–20 dBm		–3 dBm	7.5 dBm6	and 8.0
GBIC-LXLH		–11.5dBm4						dBm7
WS-G5487 or GBIC-ZX		0 dBm		5.2 dBm	–24 dBm		–3 dBm	–24 dBm

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

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

3.For fiber types 9/125 μm SMF.

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

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

6.For fiber types 50 μm MMF and 62.5 μm MMF.

7.For fiber type 10 μm SMF.

Cisco 7200 VXR Installation and Configuration Guide

OL-5013-09 3-27