3Com 3C10200 NBX Installation Guide - Page 159

Adding a T1 Digital Line Card 159 If the DDI/DID numbers match your internal extension numbers, the translator entries in your Dial Plan configuration file can be much simpler. Example: You plan to use internal extensions from 100 through 299, and the local telephone company assigns you numbers from 617-555-4100 through 617-555-4299. If the local telephone carrier passes you three digits, you need no translator entries in the Dial Plan configuration file. If the carrier passes you four digits, you could add a single set of translator entries to the configuration file to remove the first digit (4) and use the remaining three digits as the internal extension. Enabling Auto To enable the Auto Discover feature for digital line cards: Discover for Digital Line Cards 1 Log in to the NBX NetSet utility as administrator. 2 Click System-wide Settings > Auto Discovery. 3 Click the Auto Discover Other Devices check box to select it. 4 Click Apply. Inserting the T1 When you insert the T1 Digital Line Card into the chassis, you may leave Digital Line Card the system powered up. The Auto Discover process begins as soon as the system senses the new card. To insert the T1 card: 1 Find the MAC address of the T1 card on the label on the component side of the card. 2 Record the MAC address for the configuration process. 3 Select a slot for the T1 card in the chassis and remove the blank faceplate from the slot. 4 Insert the T1 card into the slot. Slide the T1 card into the chassis until you feel it touch the connectors. To seat the T1 card into the connectors, apply firm pressure to both the left and right sides of the front of the card. CAUTION: If you cannot seat the card with light pressure, remove it and check for obstructions. 5 Tighten the left and right screws on the front of the T1 card to secure it to the chassis.