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Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
OL-17439-01
Chapter 3 Overview: Cisco CRS-1 Shared Port Adapters
10-Port Gigabit Ethernet SPA Overview
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.
10-Port Gigabit Ethernet SPA Overview
The following sections describe the 10-Port Gigabit Ethernet SPA:
• 10-Port Gigabit Ethernet SPA LEDs, page 3-36
• 10-Port Gigabit Ethernet SPA Cables and Connectors, page 3-37
10-Port Gigabit Ethernet SPA LEDs
The 10-Port Gigabit Ethernet SPA has two types of LEDs: an A/L LED for each individual port and a
STATUS LED for the SPA, as shown in Figure 3-22.
Figure 3-22 10-Port Gigabit Ethernet SPA Faceplate
SFP-GE-Z 1550 SMF 9/10 — 49.7 miles
(80 km)
SMF
2
8 — 62.1 miles
(100 km)
1. Multimode fiber (MMF) only.
2. Dispersion-shifted single-mode fiber-optic cable.
Table 3-22 SFP Module Port Cabling Specifications (continued)
SFP Modules
Wavelength
(nm) Fiber Type
Core Size
(micron)
Modal
Bandwidth
(MHz/km)
Maximum
Cable Distance
1 A/L (Active/Link) LED 2 STATUS LED