3Com 2426-PWR Installation And User Manual

Also see for 2226-SFP Plus: User guide

Contents

10 I NTRODUCING THE B ASELINE SWITCH10/100 Mbps ports can operate in either half-duplex orfull-duplex mode.Power-over-Ethernet CapabilityThe Switch 2426-PWR Plus (3CBLSF26PWR) provides 24front panel RJ-45 ports that support the IEEE 802.3afPower-over-Ethernet (PoE) standard. Any 802.3afcompliant device attached to a port can directly drawpower from the Switch over the Ethernet cable withoutrequiring its own separate power source. This capabilitygives network administrators centralized power controlfor devices such as IP phones and wireless access points,which translates into greater network availability.The Switch also supports a pre-standard implementationof 802.3at, delivering up to 29.6 W per port (measuredat the PD, assuming 100 m Cat 5E cable connectedbetween the PD and the Switch 2426-PWR), subject tothe maximum power budget available.Gigabit Combo Ports (RJ-45/SFP)The 2 Gigabit combo ports support fiber GigabitEthernet short-wave (SX) and long-wave (LX) SFPtransceivers in any combination. This offers the flexibilityof using SFP transceivers to provide connectivitybetween the Switch and a 1000 Mbps core network.When an SFP port is in operation, the corresponding1000BASE-T port is disabled. The 1000 Mbpsconnections can only operate in full duplex mode.Physical FeaturesFigures 1, 2, and 3 show the front and rear panels ofthe Switch. The numbers in these diagrams refer tonumbered sections in “Front Panel” on page 11 and“Rear Panel” on page 15.Figure 1 3CBLSF26 Front and Rear PanelsFigure 2 3CBLSF26PWR Front and Rear Panels