DescriptionNetwork Module
5
Insert this blank module when the switch has no uplink ports (this is required
for sufficient air flow).
C3850-NM-BLANK
5
All network modules are hot-swappable.
For information about the network modules, see the Installing Network Modules. For cable specifications,
see Cables and Adapters.
SFP and SFP+ Modules
The SFP and SFP+ modules provide copper or fiber-optic connections to other devices. These transceiver
modules are field-replaceable, and they provide the uplink interfaces (expect in the fixed SFP slots in the
WS-C3850-12S and WS-C3850-24S switches) when installed in an SFP module slot. The SFP modules have
LC connectors for fiber-optic connections or RJ-45 connectors for copper connections.
The downlink ports on the Catalyst WS-C3850-12S and WS-C3850-24S switch models support standard
SFP modules, and the downlink ports on the Catalyst WS-C3850-12XS and WS-C3850-24XS switch
models support standard SFP+ modules.
Note
Use only Cisco SFP and SFP+ modules on the switch. For the latest information about supported SFP and
SFP+ modules, refer to the Cisco Transceiver Modules Compatibility Information at http://www.cisco.com/
en/US/products/hw/modules/ps5455/products_device_support_tables_list.html
For information about SFP modules, see the documentation at Installing SFP and SFP+ Modules.
The Catalyst 3850 switch supports the SFP module patch cable (CAB-SFP-50CM), a 0.5-meter, copper,
passive cable with SFP module connectors at each end. This cable is only used with 1-Gigabit Ethernet SFP
ports to connect two Catalyst 3850 switches in a cascaded configuration.
For information about QSFP modules, see the documentation at
•
QSFP Port Cabling Specifications
•
Cisco S-Class 40GBASE QSFP Modules Data Sheet
LEDs
You can use the switch LEDs to monitor switch activity and its performance.
Catalyst 3850 switches might have slight cosmetic differences on the bezels.Note
Catalyst 3850 Switch Hardware Installation Guide
12 OL-26779-05
Product Overview
LEDs
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