220 CHAPTER 3: D EVICE CONFIGURATIONSetting Up a DigitalLine Card at aRemote LocationEach 3C10116D T1 Digital Line Card and 3C10165D E1 Digital Line Cardcan function as a standalone unit and communicate with the NBXNetwork Call Processor over a routed network.To function as a remote card, the card must have the normal IP settings(IP address, default gateway, and subnet mask), and one extra setting, theIP address of the NBX Network Call Processor.The 3C10116D and 3C10165D Digital Line Cards can use static IPconfiguration or they can get their IP configuration from a DHCP server.However, they do not support DHCP option 184 to get the Network CallProcessor IP address, so you must perform some manual configuration ofthe card before you install it in its remote location.To install a card on a remote network, you must install the card on thesame subnet as its Network Call Processor and use the NBX NetSet utilityto enable Auto Discovery and to perform some manual configuration.Then you can move the card to its remote location. Auto Discoverydownloads the Network Call Processor IP address to the card. The cardstores that information in its non-volatile memory.Configuration Notes■ 3C10165D E1 Digital Line Cards and 3C10116D T1 Digital Line Cardsdo not support the NBX IP On-the Fly feature. If your system uses IPOn-the-Fly, you must assign a static IP address to the card or use DHCPto assign an IP address to the card, even if the card will be installed onthe same subnet as the NCP.■ 3C10165D E1 Digital Line Cards and 3C10116D T1 Digital Line Cardsdo not support DHCP option 184. Before you install a 3C10165D E1or 3C10116D T1 card at a site that is remote from the system’s NCP,you must first initialize the card as described in this section.■ 3C10165D E1 Digital Line Cards and 3C10116D T1 Digital Line Cardsdo not support DHCP lease times of less than 20 minutes.
