Cisco 7600 series Hardware Installation Manual page 89

Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
Table 3-33 SFP Module Port Cabling Specifications
Wavelength
SFP Modules (nm)
SFP-GE-S 850
SFP-GE-L 1300
SFP-GE-Z 1550
SFP-GE-T N/A
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.
The 1000BASE-ZX SFP modules provide an optical power budget of 21.5 dB. You should measure your
Note
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.
OL-5052-08
Core Size
Fiber Type (micron)
1
MMF 62.5
62.5
50.0
50.0
2
MMF and 62.5
SMF
50.0
50.0
9/10
SMF 9/10
3
SMF 8
Copper N/A
Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
5-Port Gigabit Ethernet SPA Overview
Modal
Bandwidth Maximum
(MHz/km) Cable Distance
160 722 ft (220 m)
200 984 ft (300m)
400 1640 ft (500 m)
500 1804 ft (550 m)
500 1804 ft (550 m)
400 1804 ft (550 m)
500 1804 ft (550 m)
— 6.2 miles (10 km)
— 49.7 miles
(80 km)
— 62.1 miles
(100 km)
N/A 328 ft. (100 m)
3-53