142 CHAPTER 7: E1 ISDN PRI D IGITAL LINE CARDCAUTION: If you cannot seat the card with light pressure, remove it andcheck for obstructions.5 Tighten the left and right screws on the front of the E1 card.6 Wait 3 minutes (more on a SuperStack 3 NBX system with many devices).When you insert the E1 Digital Line Card, it begins an initializationsequence. Also, because you enabled the Auto Discover Digital Line Cardscheck box, the system recognizes the addition of the E1 card and beginsto update its database. Allow 3 minutes for both of these processes to becompleted. On a SuperStack 3 NBX system with many devices, you mayneed to allow more time. If you attach a console cable to the CONSOLEport on the E1 card and use Hyperterminal software to view the textoutput from the card, you will see status messages associated with theinitialization of the E1 card. See “Connecting a Computer to a Serial Port”in Chapter 10.Verifying an E1Digital Line CardAfter the Auto Discover process is completed, you can verify that the E1Digital Line Card has been properly discovered by using the NBX NetSetutility, described next, and by examining the status light on the DigitalLine Card, described on page 143.Using the NBX NetSetUtilityTo verify the that the E1 Digital Line Card has been properly discoveredyou can use the NBX NetSet Utility.1 In the NBX NetSet - Main Menu window, click Device Configuration.2 Click the Digital Line Cards tab.3 Verify that the E1 Digital Line Card appears in the T1/ISDN Board List. Tohelp identify the board, use the E1 board MAC address that you wrotedown. The Status column should contain Ready.4 From the Select Device Type pull-down list, select ISDN PRI Channel List.5 Click Apply. The ISDN PRI Channel List appears.6 Scroll through the channel list to verify that 30 channels appear. Use theMAC addresses of the channels to identify the ones associated with theE1 Digital Line Card. The MAC addresses of the channels follow insequential order from the MAC address of the E1 Digital Line Card.