The Sce8000-Sip; The 8-Port Gbe Spa Interface Module - Cisco SCE8000 GBE Installation And Configuration Manual

Modular Optics
SFP-GE-Z Modules
The 1000BASE-ZX (extended-wavelength) module operates on ordinary single-mode fiber-optic link
spans of up to 49.7 miles (80 km). Link spans of up to 62.1 miles (100 km) are possible using premium
single-mode fiber or dispersion-shifted single-mode fiber. (Premium single-mode fiber has a lower
attenuation per unit length than ordinary single-mode fiber; dispersion-shifted single-mode fiber has
both lower attenuation and less dispersion.)
The 1000BASE-ZX module must be coupled to single-mode fiber-optic cable, which is the type of cable
typically used in long-haul telecommunications applications. The 1000BASE-ZX module does not
operate correctly when coupled to multimode fiber, and it is not intended to be used in environments in
which multimode fiber is frequently used (for example, building backbones or horizontal cabling).
The 1000BASE-ZX module is intended to be used as a Physical Medium Dependent (PMD) component
for Gigabit Ethernet interfaces. It operates at a signaling rate of 1250 Mbaud, transmitting and receiving
8B/10B encoded data.
When shorter lengths of single-mode fiber are used, it may be necessary to insert an inline optical
attenuator in the link to avoid overloading the receiver. Use the following guidelines:
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The SCE8000-SIP

The SCE8000-SIP is installed in slot #3 of the Cisco SCE8000 GBE chassis. It hosts up to four
single-width, single-height SPA modules.
descriptions.
Table 2-6
LEDs
Status

The 8-Port GBE SPA Interface Module

Either one or two 8-port GBE SPAs may be installed. Possible configurations are as follows:
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Cisco SCE8000 GBE Installation and Configuration Guide
2-8
Insert a 10-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 less than
15.5 miles (25 km).
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).
SCE8000-SIP LED
Description
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One 8-port GBE SPA in sub-slots 0 (four traffic links)
Two 8-port GBE SPAs in sub-slots 0 and 1 (eight traffic links)
Cascade: 8-port GBE SPAs in sub-slots 0 and 1, cascade SPAs (1-port 10GBE) in slots 2 and 3
Chapter 2
Table 2-6 lists the SCE8000-SIP LED and its status
Green —Operational
Flashing Amber - Electrical bypass in operation
Red - Not initialized or failed
Unlit —No power
Introduction to the Cisco SCE8000 GBE Platform
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