Chapter 2 System Architecture
UNIVERGE NEAX 2000 IPS Request For Proposal (RFP) Reference Guide Page 2-3
Issue 6
Integration
In addition to the application processors manufactured by NEC, the UNIVERGE NEAX 2000 IPS
systems also deliver an open architecture for integration with other manufacturers. Interface
processors and specifications for communicating with computing devices support this integration.
These computing devices enable such service features as network and facilities management, call
center applications, call accounting, property management, voice mail, maintenance access terminals,
and management information systems for ACD reports and monitoring.
Unified Circuit Card
All the circuit cards for UNIVERGE NEAX 2000 IPS are designed in one size (PN-type), and installed in
the PIM. This maximizes the efficiency of slot utilization of the PIM.
High Density Line/Trunk Cards
Major line/trunk cards used in UNIVERGE NEAX 2000 IPS are provided with 8 circuits per card. This
allows the physical system size to be compact.
Universal Slot
One PIM provides 12 card slots for Line/Trunk (LT). Also, these card slots can be used for Application
Processor (AP) cards without complicated limitation. As this makes easy quotation and installation,
more number of AP cards can be mounted in one PIM.
DC/DC Power Supply for –48V
The PIM houses an optional DC/DC Power Supply for the cards which require –48V power such as the
CSI card used for interface of Cell Station (CS) of a wireless system. Since this power supply is
mounted in the space under the AC/DC power, additional Power Module/card slots are not required.
SN716 Attendant Console
The SN716 Attendant Console connection is available through one twisted-pair cable when using an
AC adapter. When using the PN-PW00, one twisted-pair cable is required for voice/data and one pair
is required for power from the PW00 to the Console.
Analog/Digital Telephones
The analog/digital telephone connection is available through one twisted-pair cable.
IP Telephones
The IP telephones can communicate with other IP telephones over the LAN, on a peer-to-peer
connection basis. The Main Processor (MP) provides call control with an Ethernet adapter card. Voice
packets are transmitted between IP telephones over the LAN (not through Time Division Switch). Voice
compression of G.729a (8 kbps) and G.723.1 (5.3 kbps/6.3 kbps) is available for these connections.
The IP telephones can communicate with legacy stations and trunks (including H.323 trunks) via an IP-
PAD that converts voice packet data to PCM signals. Call control signals are transmitted to the MP over
the LAN, while voice packets are transmitted via the IP-PAD. The number of IP-PADs depends on the
traffic volume of connections between the IP Enabled Dterm and legacy stations and trunks.