Planning the installation 27SmartNode 4900 User Manual 3 • Hardware installationNetwork informationWhen planning your installation there are certain critical considerations for the network connections. The fol-lowing sections describe such considerations for several types of network interfaces.Network diagramDraw a network overview diagram that displays all neighboring IP nodes, connected elements andtelephony components.IP related informationBefore you can set up the basic IP connectivity for your SmartNode 4900 series you should have the followinginformation (see table 7):• IP addresses used for Ethernet LAN and WAN ports• Subnet mask used for Ethernet LAN and WAN ports• IP addresses used for the V.35 or X.21 serial WAN port• Subnet mask used for the V.35 or X.21 serial WAN port• IP addresses of central H.323 Gatekeeper (if used)• IP addresses of central PSTN Gateway for H.323 based calls• IP addresses of central TFTP Server used for configuration upload and downloadConfiguration toolsYou will need a PC (or equivalent) with a VT-100 emulation program (e.g. HyperTerminal) to configure thesoftware on your SmartNode 4900.AC Power MainsIf you suspect that your AC power is not reliable, for example if room lights flicker often or there is machinerywith large motors nearby, have a qualified professional test the power. Install a power conditioner if necessary.Refer to “Connecting power” on page 32.Table 7. IP addresses/subnets for SN4900Port/Device IP Address IP SubnetEthernet LAN (ETH 0/1)Ethernet WAN (ETH 0/0)V.35 Serial portX.21 Serial portH.323 Gatekeeper (if used)IP address of central PSTN gateway (H.323-based calls)IP address of central TFTP server for configuration upload/downloadsThe mains outlet that is utilized to power the equipment must be within1 foot (3 meters) of the device and shall be easily accessible.WARNING