NEC America, Inc. reserves t he right to change th e specifications, functions, or
features, at any time, without notice.
NEC America, Inc. has prepared this document for use by its employees and
customers. The information contained herein is the property of NEC America,
Inc. and shall not be reproduced without prior written approval from NEC
America, Inc.
NEAX
®
and D
term®
are registered trademarks of NEC Corporation.
All other brand or product names are or may be trademarks or registered
trademarks of, and are used to identify products or services of their respective
owners.
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Page xi
This page is for your notes.
Page xii
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Regulatory Information
Regulatory Requirements
The Federal Communications Commission (FCC) has establis hed rule s that per mit the
PBX to be directly connecte d to the t elephone n etwork . A jack is provid ed on party
lines or coin lines.
The telephone company may make changes in its technica l operat ions and pro cedure s.
If such changes affect the compatibility or use of the PBX, the telephone company
must provide adequate notice of the changes.
This equipment complies with the requirements in Part 15 of FCC Rules for a Class A
computing device. Operation of this equipment in a residential area may cause
unacceptable interference to radio and TV recep tion requiring the operator to take
whatever steps are necessary to correct this interference.
FCC Part 15 Requirements
In compliance with FCC Part 15 Rules, the following statement is provided:
Warning:
This equipment generates, uses, and can radiate radio frequency energy
and if not installed and used in accordance with the instruction manual,
may cause interference to radio communications. It has been tested and
found to comply with the li mits fo r a Class A computi ng devic e pursuant to
Subpart J of Part 15 of FCC Rules, which are designed to provide
reasonable protection against such interference when operated in a
commercial environment. Operation of this equipment in a residential
area is likely to cause interference in which case the user at his own
expense will be required to take whatever measures may be required to
correct the interference.
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Page xiii
FCC Part 68 Registration Regulatory Information
FCC Part 68 Registration
Company
Notification
Service
Requirements
Before installing the PBX to the telephone network, the telephone company must be
provided with the following:
The Ringer Equivalence Number is 1.6B; the required USOC jacks are RJ21X,
RJ2EX, RJ2GX, and RJ49C.
Note:
In the event of equipment malfunction, all repairs will be performed by NEC or an
authorized distri butor. It is th e respon sibility of u sers requ iring servi ce to report the
need for service to NEC or to one of their authorized distributors.
If trouble is experi enced with t his equi pment, pleas e conta ct NEC Americ a, Inc. , at
800-TEAM NEC (800-832-6632) for repair and/or warranty information. If the
trouble is causing harm to the telephone network, the telephone company may request
that you remove the equipment from the network until the problem is resolved.
Limitations on features exist if the sy stem is registered as a KF syste m . Refer
to Features and Specifications for details.
If the equipment causes ha rm to the teleph one netwo rk, the telephone c ompany will
notify you in advance that temporary discontinuance of service may be required. If
advance notice is not practical, the telephone company will notify the customer as
soon as possible. Also, you will be advised of your right to file a complaint with the
FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations, or
procedures that aff ect the operation of the equip ment. If this happen s, the telephon e
company will provide advance notice so that you can make necessary modifications in
order to maintain uninterrupted service.
NO REPAIRS CAN BE DONE BY THE CUSTOMER.
Page xiv
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Regulatory InformationLocation of FCC Compliance Labels
Location of FCC Compliance Labels
Labels stating the NEAX2000 IVS2 FCC registration number and compliance with
FCC Parts 15 and 68 are attached on the inside of the system's front cover. Label
examples are as follows:
FCC Requirements
for Private Line
Operations
“This equipment complies with the
requirements in Part 15 of FCC Rules for a
Class A computing device. Operation of
NEAX2000 IVS
Complies With Part 68 FCC Rules
FCC Registration Numbers:
2
this equipment in a residential area may
cause unacceptabl e interference to radio
and TV reception r equir ing th e o perat or to
take whatever steps are necessary to
correct the interference.”
Ringer Equivalence: 1.6B
NEC America, Inc. MADE IN USA
In order to connect this system to the private line network, provide the telephone
company with:
•The quantities and USOC numbers of the required jacks (See the following table.)
•The sequence in wh ich the trunks are to be connected
•The facility interface codes by position
•The Ringer Equivalence Number or service order code, as applicable, by position
Allowing this equip m ent to be operated in such a manner as to not provide for proper
answer supervision is a violation of Part 68 of the FCC's rules.
PROPER ANSWER SUPERVISION IS WHEN:
a.) This equipment returns ans w er supervision to the PSTN when DID ca lls ar e:
•Answered by the called station
•Answered by the attendant
•Routed to a recorded announcement th at can be admin istered by the CPE use r
•Routed to a dial prompt
b.) This equipment returns answer supervision on all DID calls forwarded to the
PSTN.
•Permissible exceptions are:
•A call is unanswere d
•A busy tone is received
•A reo rder tone is receiv ed
EQUAL ACCESS REQUIREMENTS
This equipment is capable of pro viding users acce ss to interstate providers of operator
services through the use of access codes. Modification of this equipment by call
aggregators to block access dialing codes is a violation of the Telephone Operator
Consumers Act of 1990.
Caution:
The use of a monitoring, recording or listening devices to eavesdrop,
monitor or record telephone conversations or other sound activities,
whether or not contemporaneous with its transmission, may be illegal in
certain circumstances under federal or stat e laws. Legal advice should be
sought prior to implementing any practice that monitors or records any
telephone conversa tion. So me feder al and st ate l aws requi re some f orm of
notification to all parties to the telephone conversation, such as using a
beep tone or other notification methods or require the consent of all
parties to the telephone conversation, prior to monitoring or recording a
telephone conversation. Some of these laws incorporate strict penalties.
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Page xvii
Regulatory Information On Single-line Analog Telephones Regulatory Information
Regulatory Information On Single-line Analog Telephones
NEC single-line telephones comply with Part 68 of FCC Rules. On the bottom of the
equipment is a label that states, among other information, the FCC registration
number and ringer equivalence number (REN) for the equipment. If requested, this
information should be provided to the telephone company.
The equipment uses the following USOC jacks: RJ11C.
The equipment should be used only behind a PBX or KTS. The REN is used to
determine the nu mber of devi ces that may be co nnected to the telephone line.
Excessive RENs on the telephone line may resu lt in the devices not ringing in
response to an incoming call. In most, but not all, areas, the sum of RENs should not
exceed five (5.0). To be certain of the number of devices that may be conn ec ted to the
line as determined by the total RENs, conta ct the telephone company to determine the
maximum REN for the calling area.
Hearing Aid Compatibility
term
The D
FCC rules prohibit the use of non- hearing aid compatible te lephones.
NEC-type single-line telephone sets used in conjunction with the NEAX2000 IVS
are hearing aid compatibl e. If other than NEC-type single- li ne telephone sets are to be
used with this system, ensure that these are hearing aid compatible.
terminals provided for the NEAX2000 IVS2 are hearing aid compatible.
2
Industry Canada CS-03
Certification number: 140 5976 A
Load Number of the equipment: 1.0
NOTICE: The Industry Cana da lab el id entif ies c erti fied e qui pmen t. The cert ificat ion
means that the equipment meets certain telecommunications network protective
operational and safety requirements. The department does not guarantee the
equipment will operate to the user's satisfaction .
Page xviii
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Regulatory Informa tionIndustry Canada CS-03
Before installing the equipment, users should ensure that it is permissible to be
connected to the facilities of the local telecommunications company. The equipment
must also be installed usin g an acceptab le method of c onnection . In some cases, the
company's insid e wiring assoc iated with a sing le line individ ual service may be
extended by means of a certified connector assembly (telephone extension cord). The
customer should be aware that compliance with the above conditions might not
prevent degradati on of ser vice in some situations.
Repairs to certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier. Any repairs or installations made by
the user to this equipment, or equipment malfunctions, may give the
telecommunications c o mpany cause to request that the user disconnect th e equipment.
Users should ensure for their own protection that the electrical ground connections of
the power utility, telephone lines, and internal metallic water pipe system, if present,
are connected together. This protection may be particularly important in rural areas.
Caution:
Users should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or electrician, as
appropriate.
NOTICE: The Load Number assigned to each terminal device denotes the percentage
of the total load to be conn ected to a tel ephone loo p whic h is used by the devic e, to
prevent overloading. The termination on a loop may consist of any combination of
devices subject only to the requirement that the total of the load numbers of all the
devices does not exceed 100.
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Page xix
Safety Certifications Regulatory Infor mation
Safety Certifications
This equipment has been listed by Underwriters Laboratories and found to comply
with all the applicable re quirements of th e standard fo r telephone equi pment U.L.
1459. This equipment c omplies with Canadia n Standards Assoc iation's standard
C 22.2 No. 225.
Safety
Considerations
When using telephone equipment, basic safety precautions should always be followed
to reduce the risk of fire, electric shock , and injury. Precautions include the following:
•Never install telephone wiring during a lightning storm.
•Never install a telephone jack in a wet location, unless the jack is specifically
designed for wet locati ons.
•Never touch an uninsulated telephone wire or terminal, unless the telephone line
has been disconnected at the netw or k interface.
•Use caution when installing or modifying telephone lines.
Note:
More detailed precautions are included in this manual.
Page xx
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Regulatory InformationSafety Instructions
Safety Instructions
1. Never install telephon e wiring during a lightning storm.
2. Never install telephone jacks in wet locations unless the jack is specifically
designed for wet locati ons.
3. Never touch un-insulated telephone wires or terminals unless the telephone line
has been disconnected at the netw or k interface.
4. Use caution when installing or modifying telephone lines.
5. Read and understand all instructions.
6. Follow all warnings and instructions marked on the product.
7. Unplug this product from the wall outlet before cleaning. Do not use liquid
cleaners or aerosol cleaners. Use a damp cloth for cleaning.
8. Do not use this product near water, fo r example, under water pipes near a bat h t ub,
sink, or laundry tub, in a wet basement, or near a swimming pool.
9. Do not place this product on an unstable cart, stand, or table. The product may
fall, causing serious damage to the product.
10. Slots and openings in the cabinet and the back or bottom are provided for
ventilation, to protect it from overheating, these openings must not be blocked or
covered. The openings should never be blocked by placing the product on a bed,
sofa, rug, or other similar surface. This product should never be placed near or
over a radiator or heat register. This product should not be placed in a built-in
installation unless proper ventilation is provided.
11. This product should be operated only from the type of power source indicated on
the marking label. If y ou are not sure of the type of power sourc e available,
consult with your local power company.
12. This product is normally connected with a three-wire grounding type plug, a plug
having a third (grounding) pin. This plug wil l only fit into a grounding type power
outlet. This is a safety feature. If you are unable to insert the plug into the outlet,
contact an elec trician to repl ace your ob solete outle t. Do not defea t the safety
purpose of the grounding type plug. SAFETY INSTRUCTIONS
13. Do not allow anythi ng to rest on the po w er cord. Do not locate this product where
the cord will be abused by persons walking on it.
14. Do not overload wall outlets and extension cords as this can result in the risk of
fire or electric shock.
15. Never push objects of any kind into this product through cabinet slots as they may
touch dangerous voltage points or short out parts that could result in a risk of fire
or electric shock. Ne ver spill liquid of any kind on the product.
16. To reduce the risk of electric shock, do not disassemble this product, but take it to
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
a qualifie d se rvic ema n wh en som e se rvic e o r re pair wo rk is req uir ed. Open in g or
removing covers may expose you to dangerous voltages or other risks. Incorrect
reassembly can cause electric shock when the appliance is subsequently used.
Page xxi
Safety Instructions Regulatory Information
17. Unplug this product from the wall outlet and refer servicing to qualified service
personnel under the following conditions:
a.) When the power supply cord or plug is damaged or frayed.
b.) If liquid has been spilled into the product.
c.) If the product has been exposed to rain or water.
d.) If the product does not operate normally by following the operating
instructions. Adjust only those controls that are covered by the operating
instructions, because improper adjustment of other controls may result in
damage and will o ften require extensive wo rk by a qualifie d technician to
restore the product to normal operation.
e.) If the product has been dropped or the cabinet has been damaged.
f.) If the product exhibits a distinct change in performance.
18. Avoid using a telephone (other than a cordless type) during an electrical storm.
There may be a remote risk of electric shock from lightning.
19. Do not use the telephone to report a gas leak in the vicinity of the leak.
Page xxii
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Chapter 1Introduction
This manual provide s a n overview of the NEAX2000 IVS2 (Integrated Voice Server2)
stored program control digital electronic PBX. An introduction to the technical
characteristics is included, along with a description of available system applications.
System Overview
The NEAX2000 IVS2 is a full-featured PBX providing a rich feature set of both Key
and PBX features. It is positioned to provide a more cost effective solution for the
small to medium size business, hotel property or networked environment. This system
allows users to purchase just the station and trunk capacity that they need, yet expand
that capacity by simply addi ng modul es to accommodate added demand. The modu la r
design of the NEAX2000 IVS
Hardware m odulari ty results in one of the most reliable, flexible, and powe rful
systems available.
2
allows the system to grow from 24 to 512 stations.
The NEAX2000 IVS
communication sys tem using the Pu lse Code Modulation (PCM) technique . The
system is comprised of central equipment cabinets and telephones located throughout
the installation site. The central equipment cabinet is composed of Port Interface
Modules (PIMs). One to Eight PIMs may be installed, depending on the requirements
of the individual customer. The PIMs are designed for modular growth, stack
mounting (4 PIMs high), and quick interconnection. Each PIM provides 64 ports. The
universal port desig n minimizes th e hardware req uired for a s ystem, and pro vides
greater flexibility in the number and types of devices that can be installed.
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
2
is a microproces sor-based, stored-p rogram-co ntrolled , digital
Page 1
System OverviewChapter 1 Introduction
The NEAX2000 IVS2 is based on a universal port concept. A total of 768 por ts can be
equipped, a maximum of 512 stations/analog trunks plus 256 Virtual extensions.
These ports support D
term
Series III/E, Electra Elite, D
term
Cordless, and D
term
PSII
(Wireless) Multiline Terminal s, singl e line telephones , outs ide li nes, and ot her ci rcuit s
and devices. While port assignment is flexible, the maximum capacities for each
device are as follows:
DEVICES
WITHOUT
MEM-MODULE
WITH
MEM-MODULE
Analog + Digital + Trunks + Wireless lines384768
DID Number Conversions5001000
IP Trunks1 (16 IP CH)8 (128 IP CH)
Analog lines256512
Digital lines256512
Analog + Digi ta l + Wireless lines256512
Virtual lines256512
Virtual + Digital lines512768
Wireless PS lines128256
ISDN-BRI lines64128
Data lines64128
Call Forward Outside240496
Auth/Forced/DISA ID Code10003000 (on MP)
Message Reminder5121024
Name Display (My-Line + Virtual)256512
Page 2
Station Speed Dial400010,000
Built-In SMDR (Standalone)2561280
Digital Trunks (T1)240 ch240 ch
ISDN PRI192 ch192 ch
CCIS #7192 ch192 ch
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Chapter 1 IntroductionFeature Overview
Feature Overview
The Primary design objective of our NEAX2000 IVS2 is to offer affordable
communications and features designed to enhance your company’s performance. A
comprehensive feature package is provided including both business and Hotel/Motel
features.
•Business – concentrates on call processing to streamline daily business
communication operations.
•Hotel/Motel – designed to provide your administration station with the most
effective features for optimum guest service. Guest stations are offered
features to provide them with optimum hospitality.
2
Throughout the use of the NEAX2000 IVS
enhance productivity, save time, and take advantage of flexible resources.
2
The NEAX2000 IVS
employs techniques such as resident system programming and
maintenance (both o nline an d remo te). The se tec hniques ensure t he ins tallation and
maintenance is quick and efficient.
Cost control is served by features such as:
Account Codes, Forced Acco unt Codes, Di rect Inward S ystem Access (D ISA), Least
Cost Routing (LCR), Route Advance, Station Message Detail Recording (SMDR),
Code Restriction, Elapsed Ca ll Timer, Periodic Time Indic ation Tone, Off-Prem ises
Extensions, and Tandem Switching of E&M Tie Lines.
features, your company can cont rol costs,
Productivity is served by features such as:
Incoming Call Identification (transfers, DIT, DID, DDD, FX, WATS and internal
calls), Authorization Code, A utomated Attendant, Camp -On, Group Listening,
Hands-free Answerback, Call Park, Do Not Disturb, Callback, Call Forward, Call
Pickup, Conference, Data, Return Me ssage Sc hedule Displa y, Timed Remin der, Trun k
Queuing, and Set Relocation.
Time saving is served by features such as:
Speed Dial, Save and Repeat, Callback Message, Last Number Redial, Answer Key,
Ringing Line Pickup, VoiceMail Integration, Broker's Call, Step Call, Trunk to Trunk
Transfer, Timed Queue, Boss /Secretary Ca lling, Inte rcoms, Rem ote Maintena nce,
Voice Mail Soft-Keys and Dial by Name.
Flexibility is served by the universal port concept, which allows a high variable trunk
to station rat io, Flexible Line Key Assignment, Flexible Ringing Assignment, DirectTrunk Appearance, as well as Flexible Numbering Plan. The variety of telephones
(detailed in Section 3) also adds to the system's flexibility.
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Page 3
Hardware ArchitectureChapter 1 Introduction
Hardware Architecture
The NEAX2000 IVS2 employs the latest advancements in Large Sc ale Integration
(LSI) circuits and component manufacturing techniques to create a highly reliable and
serviceable communications system.
2
The NEAX2000 IVS
Distributed Controller, Digital Switching Network, and Port Interface.
1. Distributed Controller
The Distributed Controller is composed of distributed multiprocessing units,
generic memory, database instructions, system interface, and interface ports for
system maintenance and administration.
2. Digital Switching Network
The Digital Switching Network consists of a non-blocking digital time division
switch, allowing all ports to be used simultaneously.
3. Port Interface
The Port Interface provid es access to the public and priva te network for v arious
types of terminal devices, including digital and analog telephones, data terminals,
computers and subsy stems such as Voice Mail Syste ms, Data Swit ch Networ ks,
and related communication and information services.
architecture consists of th ree major functiona l components:
Hardware
Modularity
Flexible Interface
Port
The NEAX2000 IVS2 continues with the modular design employing interface
modules in groups of 64 ports. The system allows users to purchase just the station
and trunk capacity that they need, yet expand that capacity by simply adding modules
to accommodate added demand. The modular design of the NEAX2000 IVS
2
allows
the system to gr ow fro m 24 to 5 12 ports. Hardw are modu larity r esults in one of t he
most reliable, flexible, and powerful systems available.
The IVS2 uses a Univers al Port ar chitect ure tha t has the f lexibil ity to acco mmoda te
station terminals, trunks, and adjunct processors. This universal digital back plane
allows the NEAX2000 IVS
2
to maximize slot space ut ilization and lowe r expansion
costs.
Page 4
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Chapter 1 IntroductionSoftware Architecture
Cabling
As more and more computers and communications devices use twisted-pair
technology, the use of today’s cabling systems continues to rise. This is of special
concern when the customers’ needs require that the cabling syste m be expanded
where facilities are cl ose to their cap acity. Th e NEAX2000 IVS
that significantly reduce overall cabling requirements.
term
The D
systems by requiring only a single twisted pair. This new technology provides the
power and function of the previous D
Software Architecture
The NEAX2000 IVS2 software design is as advanced as its hardware. It ensures that
your system will support the evolving applications and h ave the reliability needed to
take your organization into the future.
Fusion of RAM and
ROM Programs
The NEAX2000 IVS2 incorporates the flexibility of Random Access Memory (RAM)
for Office Data Memory, and Flash ROM which contains the operating system. This
fusion of divergen t memory technologi es results in high pe rformance 32-bit
processing reliability in system operation as well as fast recovery time in case of
system power loss. This unique configuration provides improved efficiency for
updates to the generic program by floppy disk, and simplifies upgrades for system
features and capabilities throughout its life.
2
provides solutions
Series III an d Se r ie s E dig it a l tele p h one s o ffe r c o st-e ff ec t ive u s e of c a bl ing
term
telephones with 50% less cabling.
Application
Processors
The processing arc hitecture of the NEAX2000 IVS2 allows the system to be
configured with Ap pli cation Processors t hat provide processing capa city for a specific
application or multiple applications. These EPROM-based processors support
applications such as :
•Open Applications Interface (OAI) which connects to outboard computing
devices to support a wide range of host computer-supported features.
•ACD Processor for call center applications.
•Hotel Processor for Hospitality applications.
This same processor is used for SMDR for call accounting, and Message Center
Interface (MCI)
NEAX2000 IVS2 General Description
NDA-24293, Issue 2
Page 5
Software ArchitectureChapter 1 Introduction
Feature Packages
The NEAX2000 IVS2 introduces a new software and hardware approach, which is
designed with modulari ty in mi nd. This ap proach a llows cu stomers a great er degree o f
cost control for new installations and for upgrades.
Feature Package
Designations
The NEAX2000 IVS2 basic operation requires Basic Business/HM Software. In
addition to the Basic Software there are several Feature Packages, each for Business or
Hotel applications. Their applications and feature package numbers are listed below:
DESCRIPTIONDESCRIPTION
24 Port Basic System Package
•ICS VS PIMF (UA)
Business/Hotel/Motel Features and Generic 2000 Load for 24 Ports.
1 per System required, supports 1 T1/E1 interf ace
•ICS VS Base/Top-UB
•SPN-CP14 MP (UA)
48 Port System Software -
2000 Series (FD)
Basic Business/Hotel/Motel Features and Generic 2000 Load fo r 48 Ports.
Provides support for 48 LT Ports , 5 T1s, ISDN, 3 Remote PIMs, 5 ISDN-PRI
DCHs, 48ISDN-BRI Trunk Spans, 128 BRI Station Ports
EXPANSION KEY (FD)Parent Part Number that inc lu d es selected Cap acity Options b elow
LT PORTS (48 to 128)Expands LT Port Capacity from 48 Ports to 128 Ports
LT PORTS (48 to 256)Expands LT Port Capacity from 48 Ports to 256 Ports
LT PORTS (48 to 512)Expands LT Port Capacity from 48 Ports to 512 Ports
LT PORTS (128 to 256)Expands LT Port Capacity from 128 Ports to 256 Ports
LT PORTS (128 to 512)Expands LT Port Capacity from 128 Ports to 512 Ports
LT PORTS (256 to 512)Expands LT Port Capacity from 256 Ports to 512 Ports
DTI SPANS (5 to 11)Expands DTI Capacity from 5-Spans to 10.5-Spans
REMOTE PIMs (3 to 6)Expands Remote PIM capacity from 3 to 6 Remote PIMs
ISDN-DCH LINK (5 to 8)
Expands ISDN-DCH capacity from 5 to 8 D-Channels
(PRI/DCHQ/DCH-QSIG
CCIS LINK (0 to 1)Expands CCIS CCH capacity from 0-Links to 1-Link
CCIS LINK (0 to 4)Expands CCIS CCH capacity from 0-Links to 4-Links
CCIS LINK (0 to 8)Expands CCIS CCH capacity from 0-Links to 8-Links
CCIS LINK (1 to 4)Expands CCIS CCH capacity from 1-Link to 4-Links
CCIS LINK (1 to 8)Expands CCIS CCH capacity from 1-Link to 8-Links
CCIS LINK (4 to 8)Expands CCIS CCH capacity from 4-Links to 8-Links
Ext. FCCS LINK (0 to 1)Expands FCCS Link cap acity from 0-Links to 1-Link
WIRELESS DEMOProvides Capacity support for 2-ZTs & 4-PSs
WIRELESS Provides Capacity support for 128-ZTs & 255-PSs
IPT x 1Expands IP Trunk capacity from 0 to 1 (max. 16 channels)
IPT x 2Expands IP Trunk capacity from 0 to 2 (max. 32 channels)
IPT x 4Expands IP Trunk capacity to 4 IPT (max 64 channels)
IPT x 8Expands IP Trunk capacity to 8 IPT (max 128 channels)
NEAX2000 IVS2 General Description
Page 6
NDA-24293, Issue 2
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