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Cisco CGS 2520 Hardware Installation Guide
OL-31444-01
Chapter 1 Product Overview
Ports
For information about SFP modules, see your SFP module documentation and the “Installing and
Removing SFP Modules” section on page 2-19. For cable specifications, see the “SFP Module Cables”
section on page B-4
SFP Module Patch Cable
The switch uses an SFP module patch cable, a 0.5-meter, copper, passive cable with SFP module
connectors at each end (see Figure 1-3). The patch cable connects two switches in a cascaded
configuration.
Figure 1-3 SFP Module Patch Cable
For information about using the SFP module patch cable, see the “Inserting and Removing the SFP
Module Patch Cable” section on page 2-21.
Table 1-2 Maximum Operating Temperature
Type of SFP Module Model
Rugged and Industrial SFPs
–40 to 140°F (–40 to 60°C)
• GLC-SX-MM-RGD
• GLC-LX-SM-RGD
• GLC-FE-100LX-RGD
• GLC-FE-100FX-RGD
• GLC-ZX-SM-RGD
Commercial SFPs
32 to 113°F (0 to 45°C)
• GLC-BX-D with digital optical monitoring
(DOM) support
• GLC-BX-U with DOM support
• GLC-FE-100LX
• GLC-FE-100BX-D
• GLC-FE-100BX-U
• GLC-FE-100FX
• GLC-FE-100EX
• GLC-FE-100ZX
• CWDM SFP with DOM support
Extended temperature SFPs
23 to 140°F (–5 to 60°C)
• SFP-GE-L with DOM support
• SFP-GE-S with DOM support
• SFP-GE-Z with DOM support
• GLC-EX-SMD with DOM support
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