1-Port 10-Gigabit Ethernet Spa Overview - Cisco CRS-1 - Carrier Routing System Router Hardware Installation Manual

Chapter 3 Overview: Cisco CRS-1 Shared Port Adapters
•
SFP Module Cabling and Connection Equipment
Table 3-26
Gigabit Ethernet SPA. Note that all SFP ports have LC-type connectors.
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 3-26
SFP Modules
SFP-GE-S
SFP-GE-L
SFP-GE-Z
1. Multimode fiber (MMF) only.
2. 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.

1-Port 10-Gigabit Ethernet SPA Overview

The following sections describe the 1-Port 10-Gigabit Ethernet SPA:
•
•
OL-17439-01
Insert a 5-dB inline optical attenuator between the fiber-optic cable plant and the receiving port on
the 1000BASE-ZX module at each end of the link whenever the fiber-optic cable span is equal to or
greater than 15.5 miles (25 km) but less than 31 miles (50 km).
provides cabling specifications for the SFP modules that can be installed on the 10-Port
SFP Module Port Cabling Specifications
Wavelength
(nm)
850
1300
1550
1-Port 10-Gigabit Ethernet SPA LEDs, page 3-40
1-Port 10-Gigabit Ethernet SPA XFP Optical Transceiver Modules, Connectors, and Cables,
page 3-40
Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
Core Size
Fiber Type (micron)
1
MMF 62.5
62.5
50.0
50.0
SMF 9/10
SMF 9/10
2
SMF 8

1-Port 10-Gigabit Ethernet SPA Overview

Modal
Bandwidth Maximum
(MHz/km) Cable Distance
160 722 ft (220 m)
200 984 ft (300 m)
400 1640 ft (500 m)
500 1804 ft (550 m)
— 6.2 miles (10 km)
— 49.7 miles
(80 km)
— 62.1 miles
(100 km)
3-39