NEC Elite 48/192/IPK

Doorphone Provides the ability to place an interal call from an area outside the premises, and is also used for room monitoring.

Key Service Unit (Elite 48). The key service unit (KSU) for the electra elite 48 comes equipped with a built in CPU (MBD-U10) and support for eight digital telephones. This KSU provides for seven slots. Slot one is dedicated to the eight built in digital ports, Slot 2 is reserved for MIF connection, Slots 3-6 are interface slots with MDF connections, and Slot 7 is an interface with no MDF connection. Slot 7 may be used to support a VMS, PBR or VRS card. Each KSU is equipped with system back up batteries, 4 PBR circuits, 16 conference circuits, 1 paging input, and one power failure transfer circuit.

Central Processing Unit The Central Processing Unit ETU contains a 32-bit microprocessor that controls the system. Included are 16, 4-party conference circuits, 16 analog and 16 digital voice mail circuits, 4-channel PBR circuits, a Tone Generator, MOH input and two built-in melodies. One required per basic 192 KSU.

T1/SDN BRI/PRI Clock Unit. The clock unit provides synchronization for T1 lines and ISDN basic and prime rate connections. The unit is piggybacked on the CPUB-U10 ETU or MBD-U10 and supports the DTI-U10 ETUs, BRT(4)-U10 ETUs and PRT(1)-U10 ETUs

Dterm PC II Installation Guide One is provided with each Dterm PC II (S) & (C) Tapi card.

Tie Line Interface. The tie line interface ETU supports the termination and operation of up to two E & M tie lines (4-wire, type I and type V, and 10/20 pps dial pulse or DTMF). Immediate or wink start, delay start, and second dial tone signaling are accommodated.

The Basic Rate Interface Unit provides 4 channels (8 voice channels) for ISDN Basic Rate Interface. When connecting to a CO, a Network Termination Unit (NT1) is required. Firmware Version 4.00 is required on IPK II.

CTU Adapter Installation Guide (Issue2) One is provided with each CTU unit.

Single line interface unit. This single line telephone ETU supports a maximum of eight single line telephones and/or analog voice mail ports. This ETU provides ringing signal generator (RSG), and message waiting (MW) LED voltage to single line telephones.

External Control Relay Unit The external control relay ETU provides common audible tone signaling using relay contacts for external ringing equipment, an audio output for external paging systems, and connection for external background music. Ten relays are provided: four for External Tone Ringer Control, one for Night Chime, three for External Paging, and two for General Purpose.