Cisco 7600 SIP 200 Hardware Installation Guide - Page 104

2-Port Gigabit Synchronous Ethernet SPA Overview Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters The minimum cable distance for the SFP-GE-S is 6.5 feet (2 m), and the minimum link distance for the SFP-GE-Z 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 SFP-GE-Z is 24.9 miles (40 km). Table 3-32 SFP Module Port Cabling Specifications SFP Modules SFP-GE-S Wavelength (nm) 850 Fiber Type MMF1 Core Size (micron) 62.5 Modal Bandwidth (MHz/km) 160 Maximum Cable Distance 722 ft (220 m) 62.5 200 984 ft (300 m) 50.0 400 1640 ft (500 m) SFP-GE-L 1300 50.0 500 MMF2 and 62.5 500 SMF 50.0 400 1804 ft (550 m) 1804 ft (550 m) 1804 ft (550 m) 50.0 500 1804 ft (550 m) 9/10 - 6.2 miles (10 km) SFP-GE-Z 1550 SMF 9/10 - SMF3 8 - 49.7 miles (80 km) 62.1 miles (100 km) SFP-GE-T N/A Copper N/A N/A 328 ft. (100 m) 1. Multimode fiber (MMF) only. 2. A mode-conditioning patch cord is required. When using the SFP-GE-L 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 the receive ends of the link when link distances are greater than 984 ft (300 m). We do not recommend using the SFP-GE-L 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. Note The 1000BASE-ZX SFP modules provide an optical power budget of 21.5 dB. You should measure your cable plant with an optical loss test set to verify that the optical loss of the cable plant (including connectors and splices) is less than or equal to 21.5 dB. The optical loss measurement must be performed with a 1550-nm light source. 2-Port Gigabit Synchronous Ethernet SPA Overview The following sections describe the 2-Port Gigabit Synchronous Ethernet SPA: • 2-Port Gigabit Synchronous Ethernet SPA LEDs, page 3-59 • 2-Port Gigabit Synchronous Ethernet SPA Interface Specifications, page 3-59 • 2-Port Gigabit Synchronous Ethernet SPA Cables and Connectors, page 3-61 3-58 Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide OL-5052-14