NEC SL2100 - SECTION 2 INSTALLATION; 2.1 Installing the Handset and LAN Cable

Install the ISDN PRI Card
Quick Install Guide – SL2100 with ISDN PRI Trunks rev 1.1 14
Insert the CPU card mounted into the SL2100 CPU slot S0, ensure the card slides into the guide rails and
tighten the two screws to secure the card.