ESI IVX 128 User manual

Installation Manual
0450-0074
Rev. E

About ESI
ESI (Estech Systems, Inc.) is a privately held corporation based in Plano, Texas. Founded in 1987, ESI designs
and builds innovative telecommunications products for businesses like yours. Because of their powerful com-
bination of value and features, ESI products are consistently recognized by industry publications and leaders.
In fact, ESI also creates telecommunications products for major companies to market under their well-known
brand names.
Copyright © 1999–2002 ESI (Estech Systems, Inc.).
Visit ESI on the Web at http://www.esi-estech.com.
IVX is a registered trademark of Estech Systems, Inc. Motorola and ColdFire are registered trademarks of Motorola, Inc. Act! is a registered
trademark of Symantec Corporation. Goldmine is a trademark of Goldmine Software Corporation. Microsoft, Windows and Outlook are
registered trademarks of Microsoft Corporation. Panasonic and DBS are registered trademarks of Matsushita Electric Corporation of
America. Velcro is a registered trademark of Velcro Industries B. V.

Table of contents
General description.............................................................................................................A.1
Hardware overview/installation............................................................................................ B.1
Testing TAPI..........................................................................................................................................................................B.20
Proceeding to use TAPI........................................................................................................................................................B.20
System programming: an introduction.................................................................................. C.1
Function 1: System parameters ............................................................................................ D.1
Function 11: Initialize............................................................................................................................................................D.1
Functions 12 and 13: Installer and Administrator passwords...........................................................................................D.1
Function 14: Set time/date...................................................................................................................................................D.2
Function 15: System timing parameters...............................................................................................................................D.2
Function 16: Recording alert.................................................................................................................................................D.3
Function 17: System speed-dial ...........................................................................................................................................D.4
Function 18: Serial maintenance port baud rate ..................................................................................................................D.5
Function 2: CO lines..............................................................................................................E.1
Function 21: CO line programming....................................................................................................................................... E.1
Function 22: Access codes/toll restriction............................................................................................................................ E.7
Function 23: CO line parameters.........................................................................................................................................E.10
Function 24: Caller ID ..........................................................................................................................................................E.12
Function 3: Extension programming....................................................................................... F.1
Function 31: Extension definition and routing.......................................................................................................................F.1
Function 32: Extension feature authorization........................................................................................................................F.5
Function 33: Department programming................................................................................................................................F.7
Function 35: Extension button mapping................................................................................................................................F.9
Function 4: Auto attendant programming.............................................................................. G.1
Function 41: Auto attendant branch programming ..............................................................................................................G.1
Function 42: Announce extension number...........................................................................................................................G.4
Function 43: Automatic day/night mode table.....................................................................................................................G.4
Function 5: Voice mail programming ..................................................................................... H.1
Function 51: Maximum message length ..............................................................................................................................H.1
Function 52: Message purge control.....................................................................................................................................H.1
Function 53: Guest/info mailboxes ......................................................................................................................................H.2
Function 54: Group mailboxes and the broadcast mailbox..................................................................................................H.3
Function 55: Message notification........................................................................................................................................H.4
Function 56: Cascade paging mailboxes..............................................................................................................................H.5
Function 57: Q & A mailboxes...............................................................................................................................................H.6
Function 6: Recording...........................................................................................................I.1
Function 61: Re-record system and auto attendant branch prompts.................................................................................... I.1
Function 62: Record directory names .................................................................................................................................... I.2
Function 63: Message-on-hold (MOH) programming............................................................................................................ I.3
Function 7: Reports .............................................................................................................. J.1
Index
Appendix I: IVX 128 user’s guide
Appendix II: Worksheets

(This page included for pagination purposes only.)

IVX 128 General description
A.1
General description
IVX 128 (IVX stands for Integrated Voice Exchange, while the 128 indicates the system’s maximum
number of call-processing ports) is an advanced business telecommunications system that includes
not only phone service but also voice mail, an automated attendant, automatic call distributor (ACD)
and computer integration.
The system itself is housed in a surprisingly small case that is wall-mounted in the telephone
equipment room. An external, wall-mounted power transformer powers the system.
Programming of the system can be done locally or remotely through either the phone or the
Windows®-based Esi-Access program (on a PC-compatible computer which has either dialed into
the system from another location or is physically connected to its RS-232C serial port).
Telephone system features
IVX 128 expands from its basic six-line, twelve-station configuration to handle as many as 66 CO lines
(see “System capacity,” page B.3).
For offices with higher-bandwidth needs, T1 support is also available through the installation of
one or two DLC12 cards.
• Impressive expansion capability — Handles up to 66 CO lines and up to 84 stations.
• T1 support — Can connect to higher-bandwidth lines, which more and more offices use.
• Digital Feature Phone — Compact, rugged design; includes a high-quality speakerphone, large
and informative multi-functional display, and a specially designed key layout with several dedi-
cated keys to minimize or eliminate the need to memorize codes. (A TAPI model is available; it’s
compliant with Basic Telephony Service.)
• Extensive help — Verbal User Guide™uses spoken and displayed help prompts to help everyone
from the installer through the administrator down to the least experienced end user. Easily ac-
cessible with one press of PROG/HELP.
• Enhanced Caller ID — Allows one-touch automatic message return.1
• Live call recording — Can record any conversation or personal memo, with moving or copying of
any recording to another user’s voice mailbox (see “Voice mail features,” below).
• Call waiting — Includes helpful display, showing both calls’ Caller ID information, and easy one-
key toggling between calls.
• Conference calling — Includes 24 conference bridges, and a conference may contain up to four
parties, so IVX 128 can support six conferences of four parties each or eight conferences of three
parties each.2
• Esi-Dex™speed-dialing — Calls any number from three separate lists (personal, station and
system); uses Caller ID1information or direct keypad entries.
• Dedicated overhead paging interface — Allows for external paging through overhead speakers or
multi-zone paging units (amplification required).
1This and all other references to Caller ID service within this manual assume the end-user organization subscribes to
Caller ID service from its telephone service provider.
2Of course, IVX 128 also supports any combination that does not exceed 24 parties and does not exceed four parties in
any conference — e. g., four three-party conferences and three four-party conferences.

General description IVX 128
A.2
• 911 alert — Provides immediate line access if any station with line access dials 9 1 1 to report
an emergency; sends a message via the serial port indicating the start date, time, station num-
ber and end-time of the 911; also sounds a warning tone at the operator station and displays,
for example:
911 CALL FROM
X102 JOHN JAMES
Voice mail features
• 16 built-in voice mail ports — These are in addition to the up-to-128 possible call-processing
ports; thus, you may build the system to its maximum for call-handling without having to bal-
ance voice mail needs versus call-handling needs.
• Highest-grade voice quality (64-kilobit/second sampling) for voice mail and other storage of
voice messages.
• Eight message-on-hold recordings — Among these are three prerecorded tracks; also supports
live entry.
• Off-premises message delivery.
• Urgent messages — Can deliver higher-priority messages first.
• Several different mailbox types, including group, broadcast, informational, cascade paging
and Q & A.
• Message Recycle Bin (undelete) — Remembers, and can restore, each mailbox’s 10 most re-
cently deleted messages
• Quick Groups™— Makes it easy to leave voice mail messages for several users.
• Quick Move™— Records a conversation into another user’s mailbox.
• Virtual Mailbox Key™allows easy monitoring of a second mailbox.
Auto attendant features
• Six levels, 100 branches — Allow you and your customer to set up a more caller-friendly answer-
ing environment, including a company directory.
• Virtually unlimited call routing — Includes off-premises transfer, pager notification, more.
ACD features
• Routes calls within designated departments for quickest possible call answering.
• Uses Digital Feature Phone display to provide up-to-the-second information on queues and
wait times.

IVX 128 Hardware overview/installation
B.1
Hardware overview/installation
IVX cabinet components consist of:
• Base Cabinet I
• Main board
• Memory Module
• One port card
(configured with 612, 684,
A12, D12 or DLC12 card)
• External wall-
mounted transformer
• Base Cabinet II
• Expansion board
• External wall-
mounted transformer
• Up to two port cards
• Configured with a D12,
A12, 612, 684 or
DLC12 card
• Expansion Cabinets
(optional)
• Up to two port cards
• Configured with a D12,
A12, 612, 684 or
DLC12 card
Base Cabinet I
The wall-mounted Base Cabinet I measures 81/2″W × 11″H × 3″D, and is designed for easy instal-
lation and easy component access. It houses the Memory Module and Main Board, a 612, 684,
A12, D12 or DLC12 port card (see page B.2), two serial ports and a MOH connector. It can support
one Expansion Cabinet, for a total of three port cards.
Base Cabinet II
To expand the system beyond the Base Cabinet I (and its Expansion Cabinet), connect a Base Cabi-
net II via ribbon cable to the Base Cabinet I. The Base Cabinet II houses up to two port cards; it can
also support one Expansion Cabinet.
Expansion Cabinets
You can “piggy-back” an Expansion Cabinet to the front of each Base Cabinet. Each Expansion
Cabinet houses up to two additional port cards each, enabling the system to grow to its maximum
128-port configuration (seven port cards).
Main board
The main board combines leading-edge hardware components — including a Motorola®
ColdFire®processor and DSP structure — along with proprietary operating system software. The
board provides:
• System control of the Memory Module and port cards
• Two standard RS-232C DB9 serial ports
• A built-in 33.6 Kbs modem for remote access
• An external paging-device interface
• MOH interface

Hardware overview/installation IVX 128
B.2
Wall-mount transformers
With three or fewer port cards, Base Cabinet I requires a 3-amp transformer (supplied). With four to
seven Port Cards, Base Cabinet I requires a 5-amp transformer and Base Cabinet II a 3-amp transformer.
Base Cabinet I is shipped with and uses a 3-amp wall mount transformer to support up to three
port cards (Base cabinet I and an Expansion Cabinet). However, when Base Cabinet II is added,
Base Cabinet I will require the wall-mount transformer to be swapped with the 5-amp transformer
that is supplied with the Base Cabinet II.
Memory Module
The Memory Module — a hard disk drive with proprietary formatting — contains all system pro-
gramming and configuration data, and pre-loaded voice prompts. The Memory Module provides
140 hours of voice storage at 64 kilobits/second — the industry's highest-quality sampling rate.
Port card options
Five kinds of port cards are available for IVX 128. All port cards can be mounted in any slot in either
of the Base Cabinets or the Expansion Cabinet. Each port card is equipped with a standard female
amphenol connector for easy wiring to a standard 66 or 110 block.
• 684 — Provides circuits to connect up to six analog loop-start CO lines, eight Digital Feature Phones
and four analog station ports. The CO line ports support standard CO and Centrex loop-start lines;
ground-start CO lines are not supported. The analog ports provide a standard 24-volt, two-wire
connection to fax machines, courtesy phones, modems, etc. Only one analog device can be con-
nected to each analog station port. This card uses 12 station ports and six CO ports when installed.
• 612 — Provides circuits to connect up to six analog loop-start CO lines and 12 Digital Feature
Phones. Ground-start CO lines are not supported. This card uses 12 station ports and six CO
ports when installed.
• A12 — Connects up to 12 analog devices, such as fax machines and cordless phones. This card
uses 12 station ports and no CO ports when installed. Each port provides a standard 24-volt,
two-wire phone connection. Only one analog device can be connected to each port.
• D12 — Connects up to 12 Digital Feature Phones (only). This card uses 12 station ports and no
CO ports when installed.
• DLC12 — (Digital Line Card) Includes interface circuitry to connect a single T1 span. Any of (or all)
24 channels of the T1 span can be assigned, and the DLC12 supports loop-start, ground-start,
E&M and DNIS/DID trunk types with immediate, wink-start or dial-tone-start signaling. The DLC12
is equipped with a built-in CSU that can be connected directly to a network interface unit or
SmartJack. When installed in an IVX 128 Plus system, it can be connected also to an ISDN PRI;
for more information, refer to IVX 128 Plus: Additional Features (ESI part #0450-0201). Addition-
ally, up to 12 Digital Feature Phones can be connected to the DLC12. This card uses 12 station
ports and 24 CO ports when installed. All 24 CO ports are allocated (regardless of whether they
are assigned or used).

IVX 128 Hardware overview/installation
B.3
Digital Feature Phones
The IVX Digital Feature Phone is equipped with speakerphone, 32-character LCD display, and both
fixed and programmable feature keys. Phones connect to the cabinet via standard two-wire twisted pair.
TAPI Phone
The TAPI Phone is an optional version of the Digital Feature Phone. It provides a DB9 connector and
RS-232C cable to facilitate connection to a PC serial port for Basic Telephony Integration to such
standard packages as Act!®, Goldmine®and Outlook®. A Digital Feature Phone cannot be field-upgraded
to a TAPI Phone.
64-Key Expansion Console
The 64-Key Expansion Console adds 64 additional programmable feature keys to a designated
user's extension. The console is connected to its host phone via a special “Y” cable (provided) and
does not require a separate station port of its own.
Note: Up to 20 64-Key Expansion Consoles can be installed in a fully configured system:
• Six on Base Cabinet I
• The additional 14 on Base Cabinet II
System capacity
• Five fixed ports
• 2 serial
• MOH
• Modem port
• Overhead paging
• 126 call processing ports (128, minus paging and modem ports)
• 84 combined digital and analog stations3, maximum
• 42 CO lines, maximum (66 if DLC12 cards are used)
Note: If DLC12 cards are used and the maximum CO lines exceed 42, then a maximum of 84 sta-
tions cannot be achieved. The total ports cannot exceed 126. If a DLC12 card is installed, the
system sets 24 ports for COs, even if a fractional T1 is used.
3The number of analog station ports cannot exceed 24.

Hardware overview/installation IVX 128
B.4
Example: Seven port cards are installed, including one T1-configured DLC12 card and
standard loop lines as shown below. Only 72 stations can be installed; i.e.:
126 minus (6 + 6 + 6 + 24 + 0 + 6 + 6) = 126 minus (54) = 72
The last 12 stations on Card #7 cannot be used.
Port card Card type Lines installed Stations
1 684 612
2 684 612
3 612 612
4 DLC12 24 12
5 A12 012
6 612 6 12
7612 60
TOTAL 54 72

IVX 128 Hardware overview/installation
B.5
Cautions
Important: This information complies with the requirements of Underwriters’ Laboratories
(UL) and UL Standard 1950.
When using this telephone equipment, always exercise basic safety precautions in order to minimize
the risk of fire, electric shock or injury to persons. Before proceeding, please read the following:
• The airflow vents on the IVX case must be free of obstruction for proper cooling. Similarly, do not
install the cabinet in areas of extreme heat or improper ventilation. Never insert objects of any
kind through the ventilation slots on the system cabinet; doing so may result in contact with
dangerous voltages — or cause an electrical short capable of producing fire or shock.
• Do not use liquids or aerosols to clean any IVX equipment; rather, use a cloth that is only
slightly damp.
• The IVX telephone/voice-mail system contains no components that are serviceable by
either non-dealers or non-manufacturer technicians. All service must be referred to the dealer
for further handling.
• To reduce the riskof fire, use only 26 AWG or better telecom wire.
Power supply
Always disconnect the power supply and telephone lines from the system cabinet before opening
the case for service or component disassembly or replacement.
Heed all warnings and instructions in documentation or marked on the cabinet or peripheral
equipment.
Fuse
Contact the factory before attempting to replace the fuse. The fuse is located on the motherboard
directly next to the power jack marked with “F1.”
Battery
“Caution: There is a danger of explosion if the onboard lithium battery is incorrectly
replaced. Replace only with Ray-O-Vac BR1225 (or equivalent). Dispose of used batter-
ies according to the battery manufacturer’s instructions.”

Hardware overview/installation IVX 128
B.6
Regulatory information
United States of America
Registration
The CO line telephone numbers, FCC registration number, and ringer equivalence number (REN) of this equipment must
be provided to the telephone company before installation. (See below for FCC registration number and ringer equivalence
number.)
FCC Part 15
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and — if
not installed and used in accordance with the instruction manual — may cause harmful interference to radio communica-
tions (in which case, the user will be required to correct the interference at his/her own expense).
FCC Part 68
This equipment complies with Part 68 of the FCC Rules. On the bottom of this equipment is a label that contains, among
other information, the FCC Registration Number and Ringer Equivalence Number (REN) for this equipment. You must, upon
request, provide this information to your telephone company.
The REN is helpful to determine the quantity of devices you say connect to your telephone line and still have all of those
devices ring when your telephone number is called. In most, but not all, areas, the sum of the RENs of all devices connected
to one line should not exceed five (5.0). To be certain of the number of devices you may connect to your line, as determined
by the REN, you should contact your local telephone company to determine the maximum REN for your calling area.
If your telephone equipment causes harm to the telephone network, the telephone company may discontinue your service
temporarily. If possible, the telephone company will notify you in advance but, if advance notice is not practical, you will
be notified as soon as possible. You will be informed of your right to file a complaint with the FCC.
Your telephone company may make changes to its facilities, equipment, operations or procedures that could affect the
proper functioning of your equipment. If so, you will be notified in advance, to give you an opportunity to maintain
uninterrupted telephone service.
If you experience trouble with this telephone equipment, the telephone company may ask that you disconnect this equipment
from the network until the problem has been corrected or until you are sure that the equipment is not malfunctioning.
This equipment may not be used on coin service provided by the telephone company. Connection to party lines is subject
to state tariffs.
Installation: The device is equipped with a USOC connector.
Registration Number: 1T1USA-33727-MF-E
Ringer equivalence number (REN): 0.8

IVX 128 Hardware overview/installation
B.7
Regulatory information
Dominion of Canada
Notice
The Industry Canada label identifies certified equipment. This certification means that the equipment meets telecommu-
nications network protective, operational and safety requirements as prescribed in the appropriate Technical Equipment
Technical Requirements document(s). The Department does not guarantee the equipment will operate to the user’s satis-
faction.
Before installing this 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 using an acceptable method of connection. The
customer should be aware that compliance with the above conditions may not prevent degradation of service in some
situations.
Repairs to certified equipment should be coordinated by a representative designated by the supplier. Any repairs or
alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company
cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections at the power utility, telephone lines
and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important
in rural areas. Caution: Users should not attempt to make such connections themselves, but should contact the appropri-
ate electrical inspection authority, or electrician, as appropriate.
Ringer equivalence number (REN): 0.4
Notice
The ringer equivalence number (REN) assigned to each terminal device provides an indication of the maximum number of
terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combina-
tion of devices subject only to the requirement that the sum of the RENs of all the devices does not exceed 5.

Hardware overview/installation IVX 128
B.8
Hardware installation
Site location
As with most electronic equipment, the environmental considerations for this site need to observe
good common sense. Provide a dry, clean, and accessible area.
Locate space in the telephone equipment room, which will provide easy connection to the 66 blocks
and 110VAC power. The location should be no further than 1,000 feet from the farthest station.
Ambient room temperature must be 400 –800(F.), and relative humidity no higher than 90%.
Note: Do not place the equipment or station runs near high voltage electrical equipment or electri-
cal lines susceptible to high voltage surges from air conditioner compressors, etc.
The system and supporting components should be mounted to a half-inch (or greater) plywood
backboard. A typical-installation Base Cabinet I layout is shown below.

IVX 128 Hardware overview/installation
B.9
Base Cabinet I
Base Cabinet II
Opening the cabinet
The lid on all cabinets is held in place by two tabs that rest in slots in the
bottom of the case, and a release tab that snaps into an opening in the top-
center of the cabinet and is secured by a retaining screw.
To remove the lid:
1. Remove the retaining screw and depress the release tab at the top of the
cabinet.
2. Rock the lid back from the top.
3. Lift and pull the lid free from the slots in the bottom of the cabinet.
Mounting the Base Cabinet(s)
Use three #8 hex-head screws. Note the position of the three mounting holes in IVX. Allow room for
installation of the second base cabinet either now or if required in the future. The Base Cabinet II
must be installed directly below the Base Cabinet I. Allow about 2″clearance between the units.
1. Screw in the top screw to the backboard (at least half-inch thick
plywood) leaving about one-eighth-inch clearance between the screw
head and the plywood.
2. Hang the unit using the keyhole at the top of the case.
3. Level the unit and install the bottom two screws.
4. If necessary, repeat the steps for the Base Cabinet II.
Attach the power transformer to the wall, allowing sufficient length in both
cords to reach the power connector on the upper right side of the cabinet
and to reach a UPS or a dedicated 110 VAC outlet.

Hardware overview/installation IVX 128
B.10
Expansion Cabinet installation
The Expansion Cabinets provide for the expansion of each base cabinet
with two additional port cards. Each houses up to two port cards that
are connected via ribbon cables through the opening in the back of the
expansion cabinet to the base cabinet.
To install an Expansion Cabinet:
1. Wear a grounding strap and avoid unnecessary movement while
handling the circuit boards.
2. Unplug the power to IVX.
3. Remove the Base Cabinet lid by pressing the release tab at the top of
the Cabinet and rock back the lid from the bottom of the Cabinet.
4. Install the Expansion Cabinet on the front of the Base Cabinet in
place of the Base Cabinet's lid.
5. Lock the Expansion Cabinet to the Base Cabinet by snapping the top
in place and reinstalling the retaining screw.
6. Connect the grounding strap from the Expansion Cabinet's
grounding lug (located on the bottom of the cabinet) to the Base
Cabinet's grounding lug. Follow the grounding procedures as
described earlier for grounding the Base Cabinet.
7. Through the large opening in the back of the Expansion Cabinet,
connect the ribbon cable(s) from the port card(s) to the card
directly below.
8. Re-install the original lid from the Base Cabinet on the face of the
Expansion Cabinet.
Base Cabinet II installation
To expand the system beyond three Port Cards, Base Cabinet must be
added. Mount Base Cabinet II directly below Base Cabinet I allow about
two inches between them.
1. Connect the ribbon cable from the back of Base Cabinet II to the
connector located on the bottom of Base Cabinet I.
2. Connect the ground of all units to the system ground.
3. Switch the wall mount transformers so the larger (5-amp) trans-
former is supplying power to Base Cabinet I and the original
(3-amp) transformer is now supplying power to Base Cabinet II.
4. Connect both power transformers to the standard power strip and
then connect to the UPS.
Note: Always apply power to both Cabinets simultaneously by using the
power strip’s switch.
Note: Do not apply power until all hardware connections have been made.

IVX 128 Hardware overview/installation
B.11
Main
Card
Port
Card
2
Port
Card
3
Expansion Cabinet Base Cabinet I
Port
Card
1
Exp
ansi
on
Port
Card
6
Port
Card
7
Expansion Cabinet Base Cabinet II
Port
Card
5
Port
Card
4
Port card installation
Adding or replacing port cards will require the system to be taken out of
service. Wear a grounding strap and avoid unnecessary movement while
handling the circuit boards.
1. Unplug the power supply to IVX.
2. Two port cards may be installed in Base Cabinet II and in each expansion
cabinet — one above the other. Each is ribbon-cabled to the port card (or
main board) directly below it. (You’ll need to remove the uppermost card
in each cabinet to gain access to the lower card.)
3. To remove a port card, disconnect the amphenol connector from the
card. Carefully unplug the ribbon cable that runs to the port card or main
board directly below it. Remove the 6 Phillips screws and remove the
card from the cabinet.
4. To install a port card, observe the locations and relative positions of the
card over the stand-offs. Install the 6 Phillips screws, connect the ribbon
cable to the connector to the board directly below it and connect the
amphenol cable.
Memory Module
Note: The Memory Module has a proprietary formatting scheme — do not attempt to install a non-
ESI drive.
Adding or replacing the Memory Module will require that the system be taken out of service. Re-
placing the Memory Module erases all its configuration data and customer recordings. (Prompts
stay intact, however.)
Contact ESI for a replacement Memory Module and detailed instructions for its installation.

Hardware overview/installation IVX 128
B.12
LED functions
The unit's various LEDs are designed to provide visual feedback as follows:
Power LED
The Power LED is located on the top-right side of the cabinet and is illuminated when power
is being applied to the system. This LED blinks periodically to indicate that the main processor is
operational.
Port LEDs
The Port LEDs are located above their respective amphenol connectors on the right side of the
cabinet. Each LED is illuminated when any port on its associated port card is in use.
Note: Disconnecting an amphenol connector when its respective LED is lit will cause any of its
ports that are in use to be disconnected.
Upon power-up, approximately five minutes are required for the system to configure. The Power and
Port LEDs will blink three times to indicate that the power-up sequence has been completed.
Note: When a DLC12’s LED is . . .
• . . . blinking, the T1 line is out of service.
• . . . not lit at all, the T1 line is in service but is idle.
• . . . lit solidly, the T1 line and/or a station on the card is in use.
Memory Transfer LED
This LED is located inside the cabinet on the top center of the main board. It serves as a diagnostic
aid by flashing as data is transferred to and from the Memory Module.

IVX 128 Hardware overview/installation
B.13
External connections
Grounding instructions
IVX grounding (supplemental ground) is as follows:
• The conductor wires can be no smaller than the ungrounded branch-circuit supply conductors
(usually 16-gauge or higher).
• Acceptable wire: bare or covered with green (or green-and-yellow-striped) jacket.
• Conductors (and power receptacles) shall connect to earth ground at the service equipment
(usually a cold water pipe or copper ground rod).
• The supplemental ground must: be used regardless of power cord ground, be connected to the
ground lug on the bottom of the IVX cabinet, and retain ground connection when IVX power sup-
ply module is unplugged.
• Connect the grounding lugs of all units to system ground
Note: IVX lines are protected against a 10 KV surge only if the earth ground procedures described
above are followed.
Power
Each base cabinet requires a 110 VAC outlet (if possible, a dedicated outlet). Use only the Class-2
power supply module provided. Expansion Cabinets, as well as the 64-Key Expansion Console,
require no additional AC power. A clean, isolated power source in conjunction with a UPS is
STRONGLY recommended. Each base cabinet draws a maximum of 25 watts. A fully loaded system
draws no more than 50 watts.
If AC power is interrupted, the system will drop all connections. When power is restored, the system
will resume normal operation in approximately five minutes, having retained its full programming
and clock setting.
UPS
For system protection and to maintain uninterrupted operation, an Uninterruptible Power Supply is
STRONGLY recommended. A UPS rated for 200 VA will provide approximately two hours of uninter-
rupted service for a fully loaded IVX. Every 50 VA of capacity added to the UPS will yield
approximately one-half hour of additional backup.

Hardware overview/installation IVX 128
B.14
MOH port
The MOH (messages-, or music-, on-hold) connector on the upper right side of the cabinet is a
standard 1/8″monophonic mini-jack, used for loading custom MOH recordings or for playing live
music-on-hold from an external source such as a radio or CD player.
Serial ports
Two standard DB9 serial connectors are located on the side of the cabinet. Use a standard shielded
serial cable, DB9-to-DB9, for printer-to-computer (this is usually male-to-female).
Note: The maximum distance from the cabinet is 100 ft.
The output from each serial port is, 8 data bits, 1 stop bit, and no parity.
The pinout is:
Data Transmit Pin 2
Receive Pin 3
Ground Pin 5
SMDR port
(Called “Port 1” in system display.)
Real-time SMDR call records are continuously output to the SMDR port.
Range: Programmable for 300, 1,200, 2,400, 4,800, 9,600, 19,200, or 38,400 bps.
Default: 38.4K.
Maintenance port
(Called “Port 2” in system display.)
A laptop PC can be connected to this port for on-line programming and diagnostics. Reports gener-
ated in Function 7 are also output to this port.
Range: Programmable for 300, 1,200, 2,400, 4,800, 9,600, 19,200, or 38,400 bps.
Default: 38.4K.