Chapter 17 Connecting the BCM50 system to the LAN and WAN 161Installation and Maintenance GuideTo connect the BCM50 system to the LAN1 Connect one end of a standard Ethernet cable to your LAN.2 Plug the other end of the Ethernet cable into the LAN port on the main unit.3 To use the internal BCM50 network switch to connect another IP device to the LAN, connectan Ethernet cable between the IP device and one of the additional LAN ports on the BCM50system (Router card LAN ports, Expansion port, or expansion unit LAN port).4 Repeat step 3 for each IP device you want to connect to the LAN using the BCM50 switch.5 If you install a BCM50a or BCM50e, proceed to Connecting the BCM50 system to the WANon page 161.If you install a BCM50, proceed to Next step on page 163.Connecting the BCM50 system to the WANFour types of main units contain a router card, the BCM50a, BCM50e, BCM50ba, and BCM50be.On the BCM50e and BCM50be, the WAN port is an RJ-45 port. On the BCM50a and BCM50ba,the WAN port is an RJ-11 port. The figure WAN port on a BCM50 main unit on page 162 showsthe location of the WAN port on both types of router cards.Router cardLAN portsThe router card LAN ports connect network devices, such as IP telephones to the LAN.These ports connect to the network switch built into the main unit. Any devices connectedto these ports are on the same subnet as the device connected to the LAN port.Expansion unitLAN portThe expansion unit LAN port connects network devices, such as IP telephones to theLAN.These ports are connected to the network switch built into the main unit. Any devicesconnected to these ports are on the same subnet as the device connected to the LANport.Table 31 LAN ports on the main unit (Sheet 2 of 2)Port name Function
