Management Ports - Cisco Catalyst 9300 Series Hardware Installation Manual

Management Ports

includes a maximum of two 5 m patch cables of the appropriate category, and 90 m of plenum or riser (i.e.
solid copper core) cables. Ensure that you follow the TIA guidance on cable dressing.
It is recommended to test the complete link using an appropriate cable tester for 10 Gbps as well as 5 Gbps
links. However, even if the link passes cable testing, it is still prone to occasional errors due to aggressors in
the bundle, and physical disturbances of the cables. As an example of bundling limitations, for 5 Gbps with
cat5e cable, only a total 45 m bundled length is supported; the remaining 55 m should be unbundled. For
bundling, follow
Equipment
If you are upgrading the network gear but reusing the existing cable plant, note that at speeds above 2.5 Gbps
traditional Cat5e channel specifications do not support full 100 m reach. To ensure 5 Gbps link speeds, we
recommend using Cat6a cabling. For more information, see the Whitepaper from NBASE-T alliance, which
has now merged with Ethernet Alliance, archived at
https://archive.nbaset.ethernetalliance.org/library/white-paper-2/.
Note
Management Ports
The management ports connect the switch to a PC running Microsoft Windows or to a terminal server.
• Ethernet management port. See
• RJ-45 console port (EIA/TIA-232). See
• USB mini-Type B console port (5-pin connector).
The 10/100/1000 Ethernet management port connection uses a standard RJ-45 crossover or straight-through
cable. The RJ-45 console port connection uses the supplied RJ-45-to-DB-9 female cable. The USB console
port connection uses a USB Type A to 5-pin mini-Type B cable. The USB console interface speeds are the
same as the RJ-45 console interface speeds.
If you use the USB mini-Type B console port, the Cisco Windows USB device driver must be installed on
any PC connected to the console port (for operation with Microsoft Windows). Mac OS X or Linux do not
require special drivers.
The 4-pin mini-Type B connector resembles the 5-pin mini-Type B connectors. They are not compatible. Use
only the 5-pin mini-Type B.
Figure 7: USB Mini-Type B Port
This illustration shows a 5-pin mini-Type B USB port.
With the Cisco Windows USB device driver, you can connect and disconnect the USB cable from the console
port without affecting Windows HyperTerminal operations.
The console output always goes to both the RJ-45 and the USB console connectors, but the console input is
active on only one of the console connectors at any one time. The USB console takes precedence over the
RJ-45 console. When a cable is connected into the USB console port, the RJ-45 console port becomes inactive.
Conversely, when the USB cable is disconnected from the USB console port, the RJ-45 port becomes active.
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
12
Cisco Guidelines and Best Practices for the Installation and Maintenance of Data Networking
which recommends the use of Velcro ties every 1 to 2 m for bundled sections.
Multigigabit ports do not support half duplex mode. Use full duplex mode.
Ethernet Management Port, on page
RJ-45 Console Port, on page
Product Overview
29.
30.