3.5.2 LAN Connections for SIP ExtensionWhen an SIP Extension is connected to the LAN and power is supplied for the first time, you will beprompted to set network parameters. The network parameters must be set for the SIP Extension before itcan be used.Connecting an SIP Extension to a Switching HubWhen connecting an SIP Extension to the LAN, connect it to a switching hub.Note• Use an Ethernet straight cable with an RJ45 connector to connect the SIP Extension to a switchinghub. The cable should be a CAT 5 (Category 5) or higher for 10BASE-T/100BASE-TX, or CAT 5e(Enhanced Category 5) or higher for 1000BASE-T.• When using the VLAN feature on the network, make sure that the switching hub to be connected isIEEE 802.1Q compliant and is configured for VLANs. In addition, the port of a switching hub that theSIP Extension is connected to must be set to "Trunk" port, to allow VLAN tagging. Consult yournetwork administrator for details.• Since a softphone is installed and operates on a PC, the PC must be connected to the LAN to use thesoftphone on the network.The diagram below is for connecting a KX-HDV series to a switching hub. For SIP phones, refer to thedocumentation of your SIP phone.Example: KX-HDV230A(1)A Ethernet Straight Cable(1) To a Switching HubConnecting an AC Adaptor to an SIP ExtensionSome SIP phones comply with the IEEE 802.3af Power-over-Ethernet (PoE) standard. If PoE is available onyour network, these SIP Extensions can receive the necessary power supply from the network through thenetwork cable. In this case, an AC adaptor is not needed for the SIP Extension. However, if PoE is notavailable, you will need to connect an AC adaptor to the SIP Extension.NoteUse only the specified type of AC adaptor for each SIP Extension. For details, refer to thedocumentation of your SIP Extension.3.5.2 LAN Connections for SIP ExtensionGetting Started 77