Cisco Systems 7401ASR manual GBIC-SX or WS-G5484, GBIC-LX/LH or WS-G5486, Wave Length Core Size

Appendix A Specifications

Gigabit Ethernet GBIC Configurations and Port and Cabling Specifications

Table A-7 GBIC Port Cabling Specifications

	Wave-
	length		Core Size	Modal Bandwidth	Maximum
GBIC	(nm)	Fiber Type	(micron)	(MHz/km)	Cable Distance
GBIC-SX or	850	MMF1	62.5	160	722 ft (220 m)
WS-G5484
			62.5	200	902 ft (275 m)
			50.0	400	1640 ft (500 m)
			50.0	500	1804 ft (550 m)
GBIC-LX/LH or	1300	MMF2 and	62.5	500	1804 ft (550 m)
WS-G5486		SMF
			50.0	400	1804 ft (550 m)
			50.0	500	1804 ft (550 m)
			9/10	—	6.2 miles (10 km)
GBIC-ZX3,4or	1550	SMF	9/10	—	43.5 miles (70 km)
WS-G5487
		SMF6	8	—	62.1 miles (100 km)
Extended distance
(1000BASEZX)5

1.Multimode fiber (MMF) only.

2.A mode-conditioning patch cord is required.

When using the GBIC-LX/LH or WS-G5486 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 GBIC-LX/LH or WS-G5486 and MMF with no patch cord for very short link distances (tens of meters). The result could be an elevated bit error rate (BER).

3.You can have a maximum of 12 1000BASEZX GBICs per system to comply with EN55022 Class B regulations and 24 1000BASEZX GBICs per system to comply with FCC Class A regulations.

4.The minimum link distance for the GBIC-ZX or WS-G5487 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 GBIC-ZX or WS-G5487 is 24.9 miles (40 km).

5.Contains a Class 1 laser of 1550 nm for 1000BASEZX (extended wavelength) applications.

6.Dispersion-shifted single-mode optical fiber cable.

Amode-conditioning patch cord can be used with the GBIC-LX/LH or WS-G5486 to allow reliable laser transmission between the single-mode laser source on the GBIC and a multimode optical fiber cable.

GBIC-SX or WS-G5484

The GBIC-SX or WS-G5484 operates on standard multimode fiber-optic link spans of up to 1804 feet (550 m).

GBIC-LX/LH or WS-G5486

The GBIC-LX/LH or WS-G5486 1000BASELX/LH (long wavelength/long haul) GBIC interfaces fully comply with the IEEE 802.3z 1000BASELX standard. However, their higher optical quality allows them to reach 10 km over single-mode fiber (SMF) versus the 3.1 miles (5 km) specified in the standard.

	Cisco 7401ASR Installation and Configuration Guide
OL-5419-01 B0		A-5