AudioCodes 420HD - Cabling

420HD IP Phone for Microsoft Skype for Business
User's Manual 14 Document #: LTRT-11898
2.3 Cabling
This section shows how to cable your phone.
Figure 2-3: Cabling
Action Description
Connect the short, straight end of the cord to the handset.
Connect the longer, straight end to the jack (RJ-9 port, for the handset) on the phone.
Connect the RJ-45 LAN port to your LAN network (LAN port or LAN switch/router), using a
CAT 5 / 5e Ethernet cable
Connect the RJ-45 PC port to a computer, using a CAT 5 / 5e straight-through Ethernet
cable
Connect the connector tip of the AC power adapter to the phone’s power socket (labelled DC
12V). Connect the two-prong AC adapter directly to the electrical wall outlet. When the
phone powers up, all the LEDs momentarily light up
Connect the RJ-9 headset jack to a headset (optional)
Note: If the LAN to which the phone is connected supports Power over Ethernet (PoE), no
AC adapter is required; the phone receives power from the Ethernet network.
Prior to connecting power, refer to the Compliancy and Regulatory Information at
www.audiocodes.com/library.
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