Network Ports - HP ProCurve 3400cl-48G Installation And Getting Started Manual

Introducing the Switch
Front of the Switch

Network Ports

1-4
24 or 48 auto-sensing 10/100/1000Base-T ports.
All these ports have the "HP Auto MDIX" feature, which means you can
use either straight-through or crossover twisted-pair cables to connect
any network devices to the switch.
Four dual-personality ports. Use either the 10/100/1000Base-T RJ-45
connector, or install a supported ProCurve mini-GBIC for fiber-optic
connections.
The RJ-45 connectors support the IEEE Auto MDI/MDI-X feature, which
means you can use either straight-through or crossover twisted-pair
cables to connect any network device to the switch.
Dual-Personality Port Operation. By default, the RJ-45 connectors are
enabled. If a mini-GBIC is installed in a slot, it is enabled and the associated
RJ-45 connector is disabled and cannot be used. If the mini-GBIC is
removed, the associated RJ-45 port is automatically re-enabled.
One, 10 gigabit expansion slot. These switches provide a single slot in the
back of the device that can accept a 2 x 10 gigabit transceiver module. The
module provides two 10 gigabit ports. The module may provide either
copper or fiber optic media that conforms to the gigabit Ethernet standard
as well as dual 10 gigabit copper or uplink ports.