NEC Elite IPK II

The Key Service Unit (KSU) for the Electra Elite IPK II system can be expanded to a maximum of 456 ports with the addition of 2 expansion KSUs depending on the configuration: (Same unit is used as expansion KSU) The P64-U(20) PSU (power supply unit), backup batteries.

The IPK II Central Processing Unit ETU contains a 32-bit microprocessor that controls the system. Included are Ethernet port, 64 conference ports, 64-channel PBR circuits, a tone generator, and MOH input. Provides synchronization for T1 lines, ISDN basic and prime rate interface (CLKG built-in). One required per basic IPK KSU. Compact Flash Memory Card is required for Remote software download.

The Hub ETU provides an in-skin switching hub for Ethernet applications. It also provides QoS services as well as port mirroring.

Required for Delay Announcement. Required for VRS or InMail. Mounted onto CPUII.

The Expansion ETU is installed in the B64-U20 KSU for expansion. One EXP-U10 is required per expansion KSU.

The Direct Inward Dialing Interface supports up to four DID or four 2-way DID lines. Immediate, wink start, delay start, and second dial tone signaling are accommodated.

The Digital Trunk Interface unit provides both T1 and PRI interface. The T1 Trunk Interface provides for the termination of T1/Fractional T1 (24 DS-0 channels) lines with ANI. Tie line (E&M), DID signaling, loop start, and ground start are supported. The Primary Rate Interface provides for the termination of an ISDN PRI line for voice service only. This unit supports 4ESS (AT&T Custom), AT&T 5ESS (Lucent Custom), DMS-100 (Custom and National ISDN) and NI-2 protocols. Firmware Version 5.00 is required on IPK II.

SINGLE LINE INTERFACE UNIT This Single Line Telephone ETU supports 4 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. Firmware Version 1.73 is required on IPK II.

Same functions as ESIB (8)-U20. ESIE (8)-U20 is piggyback module on ESIB (8)-U20. This ESIE (8)-U20 can connect digital multi-line terminal from front RJ61 connectors.