Cisco Catalyst 3850 User Manual

Figure 94: Four Twisted-Pair Semi-Cross Cable Schematic
Figure 95: Two Twisted-Pair Straight-Through Cable Schematic
Figure 96: Two Twisted-Pair Crossover Cable Schematic
Identifying a Crossover Cable
To identify a crossover cable, compare the two modular ends of the cable. Hold the cable ends side-by-side,
with the tab at the back. The wire connected to the pin on the outside of the left plug should be a different
color from the wire connected to the pin on the inside of the right plug.
Figure 97: Identifying a Crossover Cable
Console Port Adapter Pinouts
The RS-232 console port uses an 8-pin RJ-45 connector. Use an RJ-45-to-DB-9 adapter cable to connect the
switch console port to a console PC. You need to provide a RJ-45-to-DB-25 female DTE adapter to connect
the switch console port to a terminal.
Catalyst 3850 Switch Hardware Installation Guide
131OL-26779-05
Connector and Cable Specifications
Console Port Adapter Pinouts

Cisco Catalyst 3850 Specifications

General

Stacking Bandwidth	480 Gbps
Max Stacking Units	9
Form Factor	Rack-mountable
RAM	4 GB
Flash Memory	4 GB
Operating System	Cisco IOS XE
Model	Catalyst 3850
Ports	24 or 48 Gigabit Ethernet ports
Uplink Interfaces	4 x 1GE, 2 x 10GE, or 4 x 10GE
Power Supply	Redundant power supplies
Dimensions	44.5 x 44.8 x 4.45 cm
Weight	7.6 kg
Features	IPv6
Power over Ethernet (PoE)	PoE, PoE+, UPOE (varies by model)
Operating Temperature	0 to 40°C