NonStop S-Series Hardware Installation and FastPath Guide (G06.25+)

Connecting a System Console
HP NonStop S-Series Hardware Installation and FastPath Guide—529443-001
6-4
Ethernet Switch Ports
Ethernet Switch Ports
Several procedures in this section involve connecting Ethernet cables to ports on the
Ethernet switch or hub. Do not connect an Ethernet cable to the cascade port
(sometimes called the uplink port) on the Ethernet switch or hub unless specifically
instructed to do so. These ports are used for cabling additional switches. To determine
which ports to use, see the documentation provided with the Ethernet switch or hub.
Installing Ferrite Cores
If any ServerNet adapter, PMF CRU, IOMF CRU, or IOM 2 CRU in the system
connects to a cable with an RJ-45 connector, you should install two ferrite cores on
that cable.
1. Find a place on the cable within 4 or 5 feet of the connection to the adapter or
CRU.
2. Attach the ferrite cores at that location:
The ferrite cores are split, and open up into two pieces. To install a ferrite core,
pass the RJ-45 cable through the core twice by wrapping the cable around the
core and then closing the core jacket around the cable.
Space the cores no more than 12 inches apart from each other on each cable.
If you don’t have enough ferrite cores:
1. Count the number of cables terminating in RJ-45 connectors that are connected to
every adapter in the system.
2. Multiply that number by 2.
3. Subtract from that number the number of ferrite cores included with the adapters.
4. That number is the quantity of ferrite cores to order.
For the part number for a ferrite core, see the CSSI Web or the NonStop S-Series
Planning and Configuration Guide.
Installing the Ethernet Switch or Hub
Install the Ethernet switch or hub using the documentation that came with the switch or
hub. You can position switches or hubs on a tabletop, under a table, or on a wall.
Caution. If you are using ProCurve 24-port (managed) Ethernet switches for your dedicated
OSM or TSM service LAN, you should configure the switch ports that are used for connecting
to PMF CRUs—and only those ports—to protect the services processors from possible
overload. See Configuring a ProCurve 24-Port Ethernet Switch
on page D-48 for the
procedure. This procedure is not needed and does not apply to ProCurve 8-port (unmanaged)
switches.