Cisco CRS-1 - Carrier Routing System Router Hardware Installation Guide

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Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
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Chapter 3 Overview: Cisco CRS-1 Shared Port Adapters
1-Port 10-Gigabit Ethernet SPA Overview
• 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).
SFP Module Cabling and Connection Equipment
Table 3-26 provides cabling specifications for the SFP modules that can be installed on the 10-Port
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).
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.
1-Port 10-Gigabit Ethernet SPA Overview
The following sections describe the 1-Port 10-Gigabit Ethernet SPA:
• 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
Ta b l e 3-26 SFP Module Port Cabling Specifications
SFP Modules
Wavelength
(nm) Fiber Type
Core Size
(micron)
Modal
Bandwidth
(M
Hz/km)
Maximum
Cable Distance
SFP-GE-S 850 MMF
1
1. Multimode fiber (MMF) only.
62.5 160 722 ft (220 m)
62.5 200 984 ft (300 m)
50.0 400 1640 ft (500 m)
50.0 500 1804 ft (550 m)
SFP-GE-L 1300 SMF 9/10 — 6.2 miles (10 km)
SFP-GE-Z 1550 SMF 9/10 — 49.7 miles
(80 km)
SMF
2
2. Dispersion-shifted single-mode fiber-optic cable.
8 — 62.1 miles
(100 km)

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English