1-4
Introducing the HP 2920 Switches
Fronts of the Switches
Network Ports
Dual-Personality Port Operation. By default, the RJ-45 connectors are
enabled. If an SFP transceiver is installed in a slot, it is enabled and the
associated RJ-45 connector is disabled and cannot be used. If the SFP is
removed, the associated RJ-45 port is automatically re-enabled.
On the PoE/PoE+ switches, the RJ-45 connector also supplies PoE/PoE+
power until an SFP is installed. The PoE+ power is turned off when an SFP is
installed.
These products also support the optional network connectivity shown in Table
1-2.
Table 1-1. Network Ports
Model name
10/100/1000
non-PoE
RJ-45 ports
1
10/100/1000
PoE/PoE+
RJ-45 ports
1
1G SFP
ports
2
SFP+
ports
3
10GBASE-T
RJ-45 ports
1
HP 2920-24G-PoE+ Switch 20 4
HP 2920-48G-PoE+ Switch 44 4
HP 2920-24G Switch 20 4
HP 2920-48G Switch 44 4
HP 2920-2-port 10G SFP+ Module 2
HP 2920-2-port 10G BASE-T Module 2
Notes:
1
All RJ-45 ports support “Auto-MDIX”, which means you can use either straight-through or crossover twisted-pair
cables to connect network devices to the switch. On each switch, two of the 10/100/1000BASE-T ports are provided
in the dual-personality ports.
2
SFP ports are included in the dual-personality ports. The SFP ports support 1G SFP transceivers. J9584A SFP ports
also support 100 Mb (100-FX and 100-BX) transceivers.
3
SFP+ ports are provides on the HP 2920 2-Port 10-GbE SFP+ Module. They support 1G SFP and 10G SFP+
transceivers.
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