Cisco Cisco DWDM Transceiver Modules データシート
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Data Sheet
Cisco QSFP to SFP or SFP+ Adapter Module
The Cisco QSFP to SFP or SFP+ Adapter (QSA) Module offers 10 Gigabit Ethernet
and 1 Gigabit Ethernet connectivity for Quad Small Form-Factor Pluggable (QSFP)-
only platforms. It allows smooth and cost-effective migration to 40 Gigabit Ethernet by
providing an option to use lower-speed Small Form-Factor Pluggable (SFP) or
Enhanced Small Form-Factor Pluggable (SFP+) modules in empty QSFP ports or
when the other end of the network is running at lower speeds.
and 1 Gigabit Ethernet connectivity for Quad Small Form-Factor Pluggable (QSFP)-
only platforms. It allows smooth and cost-effective migration to 40 Gigabit Ethernet by
providing an option to use lower-speed Small Form-Factor Pluggable (SFP) or
Enhanced Small Form-Factor Pluggable (SFP+) modules in empty QSFP ports or
when the other end of the network is running at lower speeds.
Figure 1. Cisco QSA Module
Figure 2. Cisco QSA Module with SFP or SFP+ Plugged In
Features and Benefits
The Cisco QSA Module (Figure 1 and Figure 2) converts a QSFP port into an SFP or SFP+ port. With this adapter,
customers have the flexibility to use any SFP+ or SFP module or cable to connect to a lower-speed port on the
other end of the network. This flexibility allows a cost-effective transition to 40 Gigabit Ethernet by maximizing the
use of high-density 40 Gigabit Ethernet QSFP platforms. This adapter supports all SFP+ optics and cable reaches
and several 1 Gigabit Ethernet SFP modules (Table 1).
Compatible Switch Models and SFP or SFP+ Modules
The list of switch models supporting the Cisco QSA Module is available in the 40 Gigabit Ethernet compatibility
matrix at:
A list of Cisco SFP or SFP+ transceiver modules that can be plugged into the QSA module is provided in Table 1.
Table 1.
Cisco SFP or SFP+ Transceiver Modules
Product Name
Product Description
SFP-10G-SR
Cisco 10GBASE-SR SFP+ Module for Multimode Fiber
SFP-10G-LR
Cisco 10GBASE-LR SFP+ Module for Single-Mode Fiber
SFP-10G-ER
Cisco 10GBASE-ER SFP+ Module for Single-Mode Fiber (extended reach)