Cisco Systems 3560-X, 3750-X manual SFP and SFP+ Modules, Network Module Description

Chapter 1 Product Overview

Front Panel Description

Table 1-3	Network Modules
Network Module1		Description
Blank		This module has no uplink ports.
1-Gigabit Ethernet		This module has four 1-Gigabit SFP module slots. Any combination of standard
		SFP modules are supported. SFP+ modules are not supported.
		If you insert an SFP+ module in the 1-Gigabit network module, the SFP+
		module does not operate, and the switch logs an error message.
10-Gigabit Ethernet		This module has four slots. Two slots support only 1-Gigabit SFP modules, two
		slots support either 1-Gigabit SFP or 10-Gigabit SFP+ modules.
		The four slots are grouped as two pairs with each pair consisting of one SFP slot
		and one SFP+ slot. Each pair supports either two 1-Gigabit SFP modules or one
		10-Gigabit SFP+ module. A 10-Gigabit SFP+ module cannot operate at the same
		time as the corresponding 1-Gigabit SFP module in the pair.
		Supported combinations of SFP and SFP+ modules:
		• Slots 1, 2, 3, and 4 populated with 1-Gigabit SFP modules.
		• Slots 1 and 2 populated with 1-Gigabit SFP modules and Slot 4 populated
		with one 10-Gigabit SFP+ module.
		• Slot 2 populated with one 10-Gigabit SFP+ module and Slots 3 and 4
		populated with 1-Gigabit SFP modules.
		• Slot 2 and Slot 4 each populated with 10-Gigabit SFP+ modules.
		A 10-Gigabit SFP+ module takes precedence over a 1-Gigabit SFP module
		except when an SFP module is first inserted in Slot 1 and has link. When you
		insert an SFP+ module in Slot 2, the SFP in Slot 1 retains link. The SFP+ module
		in Slot 2 does not operate.
		When the SFP module in Slot 1 is shutdown, loses link, or is removed, the SFP+
		module in Slot 2 becomes operational. At this point, the SFP module in Slot 1
		will not become operational under any circumstance for as long as an SFP+
		module remains in Slot 2 whether it is link up or not.
		The same precedence applies to Slots 3 and 4.

1. All network modules are hot-swappable.

For information about the network modules, see the “Installing a Network Module in the Switch” section on page 2-23. For cable specifications, see Appendix B, “Connector and Cable Specifications.”

SFP and SFP+ Modules

The switch-Gigabit Ethernet SFP and SFP+ modules provide copper or fiber-optic connections to other devices. These transceiver modules are field-replaceable, providing the uplink interfaces when installed in an SFP module slot. The SFP modules have LC connectors for fiber-optic connections or RJ-45 connectors for copper connections.

Use only Cisco SFP modules on the switch.

Catalyst 3750-X and 3560-X Switch Hardware Installation Guide

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