رقم الجزء 1212010

معلومات الجزء
Provides network termination for the 2b1q basic rate interface between the customer terminal equipment and the isdn network, basic rate isdn consists of two 64 kbps b channels and a single 16 kbps d channel, the u-interface is used for connection to the isdn network, while the s/t-interface is used for the subscriber terminal equipment, the u- and s/t-interfaces conform to ansi and ccitt standards and perform all layer 1 functions, the nt1 contains lightning protection circuitry to protect from lightning and line transients on the network interface. Three led status indicators on the front panel aid in fault isolation, operates as a standalone unit or in a multiple type 400 mounting