38 System components• minimum installation configuration• optional access over the Internet for maintenance and troubleshooting• command line interface• embedded Telnet Server• embedded FTP Server for firmware upgrades over the Internet• database backup and restore through FTP or e-mail• Status LEDs• embedded Clock Reference functionality• Gain Control and Voice pad• Web-based Error logs• continuity tests• Nortel CardLAN interfaceThe E1/T1 card serves up to four spans (or up to eight spans withE1/T1 expansion daughterboard equipped) and is a motherboard tothe NTBK51AA/NTBK51CA Downloadable D-channel handler and theNTAK93AB D-channel handler.The E1/T1 card requires one slot on the 19-inch 2u MGP shelf. The otherslot on the shelf is reserved for the Media Gateway Controller.E1/T1 card expansion daughterboardThe E1/T1 base card houses one E1/T1 expansion daughterboard tosupport up to eight spans. This expansion mates with connector pins onthe E1/T1 card motherboard.LED indicatorsThe E1/T1 card is equipped with the following 33 LED indicators on thefaceplate controlled by the card software as shown in Figure 7 "LEDindicators on the E1/T1 card" (page 38):Figure 7LED indicators on the E1/T1 card• one LED for power• one LED for fansNortel Communication Server 1000Media Gateway 1000E PRI Gateway Installation and CommissioningNN43041-311 04.01 4 June 2010Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
