Comdial ExecuTech XE Sys IS Service Manual
ISO 9001 Certified
R
XE Key System
System Manual
The information in this publication is applicable
for the following common equipment:
Model
N0308 Rev J and later
N0308-AT Rev J and later
N0616 Rev J and later
N0616-AT Rev J and later
N0820 Rev M and later
Printed in U.S.A. IMI66–064.04
N0820-AT Rev M and later
Manufacturing Code
7/91
Comdial®strives to design the features in our communications systems to be fully
interactive with one another. However, this is not always possible, as the
combinations of accessories and features are too varied and extensive to insure total
feature compatibility.
Accordingly, some features identified in this publication will not operate if some
other feature is activated. Comdial disclaims all liability relating to feature
non-compatibility or associated in any way with problems which may be
encountered by incompatible features. Notwithstanding anything contained in this
publication to the contrary, Comdial makes no representation herein as to the
compatibility of features.
Issued: 2/12/97
Table of Contents IMI 66-064
iii
Table of Contents IMI 66-064
iv
IMI 66-064 Table of Contents
v
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System Description IMI 66-064
CHAPTER 1
SYSTEM DESCRIPTION
SECTION 1
INTRODUCTION
MANUAL SCOPE
This publication contains a complete description of the
ExecuTech model XE electronic key system. The
manual is divided into:
System Description
•
Feature Description
•
Installation
•
System Programming
•
System Operation
•
Maintenance
•
This issue of publication IMI 66-064 supersedes all
previous issues and includes information previously
discussed in the following Technical Advisory Bulletins:
TAB036A - Software Enhancements
N0308 Revision C and later
N0616 Revision C and later
N0820 Revision D and later
N1024 Revision D and later
Automatic dialing with DSS/BLF consoles
•
OHVA and DSS/BLF with DB32S-xx adjunct feature
•
module
OHVA signaling enhancements
•
Unscreened call transfer
•
Extended DTMF tones
•
Idle line preference through an OPX port
•
Auto-save feature
•
TAB047 - Programming Clarifications
All models, all revisions
Expanded explanation of line assignment and button
•
mapping
TAB048A- Software Enhancements
N0308 Revision H and later
N0616 Revision H and later
N0820 Revision K and later
N1024 Revision K and later
System speed dial toll restriction override
•
SOHVA groups
•
TAB059A-Software Enhancement
N0308 REV J and later Software Issue 8
N0308-AT REV J and later Software Issue 8
N0616 REV J and later Software Issue 8
N0616-AT REV J and later Software Issue 8
N0820 REV M and later Software Issue 11
N0820-AT REV M and later Software Issue 11
N1024 REV M and later Software Issue 11
N1024-AT REV M and later Software Issue 11
K0308 REV J and later Software Issue 8
K0616 REV J and later Software Issue 8
K0820 REV M and later Software Issue 11
K1024 REV M and later Software Issue 11
Product codes for software upgrade kits:
PSUXE-1 REV 8
NO308, N0308-AT, NO616, N0616-AT, K0308, K0616
PSUXE-2 REV 11
NO820, N0820-AT, N1024, N1024-AT, K0820, K1024
Programmable Feed-Back Tone
•
RELATED PUBLICATIONS
Related publications, which contain additional
information applicable to this electronic key system, are
available from the manufacturer.
They are as follows:
GENERAL INFORMATION
IMI 01-001 Compliance Requirements To FCC Rules
•
and Regulations Part 68 and 15
IMI 01-005 Handling Of Electrostatically Sensitive
•
Components
USER INFORMATION
GCA 70-110 Attendant Guide
•
GCA 70-111 Station User Guide
•
INSTALLER INFORMATION
IMI 66-065 Class Of Service Programming Chart
•
1-1
IMI 66-064 System Description
SECTION 2
SYSTEM SPECIFICATIONS
SPECIFICATION MODEL NUMBER
SYSTEM CAPACITY N0308 N0616 N0820 N1024
LINES: 3 6 8 10\\
STATIONS: 8 16 20 24
DSS/BLF CONSOLES: 4 8 20 24
INTERCOM PATHS: 1 3 3 2
MAXIMUM SIMULTANEOUS
INTERCOM CONVERSATIONS: 1 3 3 2
POWER REQUIREMENTS
(Fullly loaded system)
AC POWER: 117V +/- Singlephase - all models
.4A .5A .8A. .8A
25W 45W 65W 65W
40VA 60VA 80VA 80VA
DIMENSIONS (approximate)
COMMON EQUIPMENT:
WIDTH (inches): 10.4 13.1 15.6 15.6
HEIGHT (inches): 14.9 19.4 21.1 21.1
DEPTH (inches): 3.0 3.0 3.0 3.0\
WEIGHT (pounds): 9.0 13.0 16.5 17.0
STATIONS:
FOOTPRINT (inches): 6.5 x 8.5
WEIGHT (pounds): 1.9
STATION CABLE REQUIREMENTS
TYPE: Twisted, non-shielded, #24AWG
MAXIMUM LENGTH: 1,500 feet for multiline stations
SWITCHING PRINCIPLE: Solid-state, space-division analog switching with stored program
control
OPERATING ENVIRONMENT\
TEMPERATURE: 32-122 degrees F (0-50 degrees C)
HUMIDITY: 90 percent relative, non-condensing
TERMINATIONS
LINE: Standard, 6-conductor minijack (USOC RJ14C)
STATION: Standard, 50-pin female connectors for connection to external
distribution field on models N0616, N0820, and N1024.
Standard 6-conductor minijack (USOC RJ14C) for model N0308.
1-2
System Description IMI 66-064
MUSIC INTERFACE
INPUT LEVEL: 3 Volts peak-to-peak maximum
INPUT IMPEDANCE: Approximately 500 Ohms
CONNECTOR: RCA phono jack
CENTRAL OFFICE LIMITS
LOOP LIMITS: 1,900 Ohms maximum loop
CABLE INSULATION
LEAKAGE: 15,000 Ohms minimum
INDUSTRY REGULATORY
STANDARDS FCC Certified, part 15 (Class A)
FCC Registered (fully protected)
UL listed (power supply only)
EIA RS478
Bell publication 48002 guidance
Hearing aid compatible handset
MEMORY RETENTION
AFTER POWER LOSS 30 hours minimum (typically 200 hours)
FCC REGISTRATION NUMBER CVW7WC-12829-KF-E
RINGER EQUIVALENCE NUMBER 0.4B
PRODUCT CODE Common Equipment
N0308 3-line, 8-station
N0616 6-line, 16-station
N0820 8-line, 20-station
N1024 10-line, 24-station
Telephones
6702X 2-line monitor
6706X 6-line monitor
6714X 14-line monitor with SOHVA
Optional Telephones
6614E 10x14 monitor with SOHVA (Rev D and later)
6614T 10x14 speaker with SOHVA (Rev C and later)
6620E 5x20 monitor with SOHVA (Rev D and later)
6620T 5x20 speaker with SOHVA (Rev I and later)
Consoles
EB32X 32-button console
DB32S 32-button console with call announcer speaker
LCD Conversion
PCCXE Conversion Kit
6600E LCD cpeakerphone with SOHVA (Rev B and later)
Software Upgrade Kit
PSUXE-1 N0308 and N0616
PSUXE-2 N0820 and N1204
1-3
IMI 66-064 System Description
SECTION 3
GENERAL INFORMATION
CONFIGURATION
The model XE electronic key telephone system
consists of an electronic Key Service Unit (KSU), also
referred to as common equipment, dedicated
electronic key telephones, and interconnecting wiring
consisting of small, 4- or 6-conductor, twisted-pair
cable.
The station and line capacity of the various family
members are per the following chart.
MODEL CO/PBX STATION
NO. CAPACITY CAPACITY
N0308 3 8
N0616 6 16
N0820 8 20
N1024 10 24
The model XE telephone system is full featured, and
supports a specially designed group of key telephones
(model 67xxx-xx series) described below. In addition,
it also supports the following ExecuTech multiline
telephone models 6614E, 6614T, 6620E, 6620T, 6414
and 6414S. (If a model 6414S-xx is used, a moderate
volume setting may be required to avoid the possibility
of a squeal being sounded through the station speaker
during call announce and/or background music
operations.)
An optional kit supplied clock/chip socket assembly
can be added to allow the model XE system to support
the operation of a model 6600S or 6600E ExecuTech
LCD speakerphone in addition to the telephones
mentioned above. The product code for this LCD
upgrade kit is PCCXE. This kit is available through
normal distribution channels for field installation.
When this LCD upgrade kit is installed in an XE
system, the model number designation is changed
from Nxxxx to Kxxxx. The new model numbers
become as follows: K0308, K0616, K0820 and K1024.
The LCD speakerphone will provide the following
feature displays for the user’s convenience:
Time and Date
•
Call Duration Time
•
Do Not Disturb
•
Line Identification When Chosen Followed By The
•
Numbers Dialed
Intercom Calling Party Identification
•
Intercom Number Dialed
•
Re-display Of Call Time Of Last Call When HOLD
•
Key Is Pressed
A software upgrade kit is available for field installation.
The EPROM chip supplied in this kit will revise the
operating system software of the XE system to the
latest factory issued level. The product code for the
software upgrade kits are:
PSUXE-1 for N0308 and N0616
PSUXE-2 for N0820 and N1024
These kits are available through normal distribution
channels.
COMMON EQUIPMENT DESCRIPTION
The common equipment is a fully electronic device. It
is essentially a special purpose computer system
acting as a communications controller between central
office (CO), private branch exchange (PBX), or
CENTREX supplied lines and the proprietary
telephone stations. The software architecture of the
common equipment provides complete system support
and great flexibility of operation.
The common equipment is contained in a functional,
modern-style metal housing of contemporary design in
keeping with the needs of the modern office
environment. It is engineered to be wall or rack
mounted. The outline dimensions of the common
equipment cabinet are illustrated in Figure 1-1.
STATION DESCRIPTION
The model 67xxx-xx telephone stations are electronic,
microprocessor-controlled devices. They allow not
only multiline pickup but also single button access to
features available from the serving CO, PBX, or
CENTREX switch as well as the common equipment.
The outline dimensions of the system stations are
illustrated in Figure 1-2 and the images are illustrated
in Figure 1-3.
The stations provide the following features:
Full modular connection
•
4 fixed feature buttons with indicators
•
SPKR
•
MUTE
•
HOLD
•
ITCM
•
2 fixed feature buttons without indicators
•
TAP
•
TRANS/CONF
•
Programmable buttons with and without indicators
•
7-foot, 6-conductor line cord
•
1-4
System Description IMI 66-064
6 position, 4- or 6-conductor modular line jack
•
K-type handset (hearing aid compatible)
•
Ringer volume control (Off, Low, and High)
•
Desk/wall reversibility
•
DSS/BLF CONSOLE DESCRIPTION
The DSS/BLF console is an optional device designed
to be a companion to a system attendant station in
high call volume situations that require a dedicated call
transfer location. The console provides a direct station
selection (DSS) intercom, and an associated busy
lamp field (BLF). It also provides one-key access to
all-call when that feature is available.
The console may also be installed at any station port
to work in conjunction with a companion station
connected to an adjacent paired port.
The model EB32X-xx, DB32-xx, DB32S-xx, DB40-xx
and DB70-xx DSS/BLF consoles are all compatible
with the XE system. The station port to which they are
connected must be programmed as a DSS/BLF
console port. The console buttons are fixed for
DSS/BLF operation beginning with station 10 and
ending with the maximum station number in the
system. Theses buttons also provide autodial locations
at a second level of storage (accessed with the HOLD
button function). Additionally, any buttons, from
beyond system station capacity through a maximum of
32, are available as autodial locations at the first level
of storage. For example, a model N1024 key system
and a EB32X-xx or DB32-xx console will fix the first 24
console buttons as DSS/BLF buttons, and provide the
remaining eight buttons as autodial buttons. Plus, it
will provide autodial locations at the second level of
storage for the first 24 buttons. A total of 32 autodial
storage locations are provided. For larger consoles,
any buttons beyond a maximum of 32 will still be
blanked. For this reason, it is recommended that the
larger consoles (DB40 and DB70) not be used unless
absolutely necessary since the XE system has a
maximum station capacity of 24 stations thus leaving
these consoles with a large quantity of blanked
buttons.
The DB32S-xx Adjunct Feature Module can be used to
provide off-hook voice announce (OHVA) to a station
already busy on a call and allow subsequent
handsfree answerback (HFAB) by that station user.
The DB32S-xx Module can also be used as a
DSS/BLF console at the same time if desired. The
station port to which the Adjunct Feature Module is
connected must be programmed for the feature that is
required. When both DSS/BLF and OHVA operation
are required, the station port to which the console is
connected must be programmed as an Off-Hook Call
Announce port. When only DSS/BLF operation is
required, program the port as a DSS/BLF Console
port.
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IMI 66-064 System Description
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System Description IMI 66-064
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IMI 66-064 System Description
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System Description IMI 66-064
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System Description IMI 66-064
CHAPTER 2
DESCRIPTION OF SYSTEM FEATURES
AUTO-SAVE FEATURE
ACCESS DENIED
Access to particular lines can be denied at certain
stations in the system through system programming.
This feature is programmable on a per line/per station
basis as part of system or administration
programming.
ADD-ON CONFERENCE
(2 INTERNAL, 1 EXTERNAL PARTIES)
This system feature allows a station, while operating in
a private mode, to add another station to an outside
call.
ALL-CALL PAGING
(VIA STATION SPEAKERS)
All-call paging allows all of the stations to receive
announcements at the same time through the station
speaker. Origination of announcements must be via a
station handset. Each station can be programmed to
receive and/or to originate an all-call page. The
system default condition is that all stations have both
receive and originate capability. The arrangement of
paging as all-call is controlled by both system and
administration programming. See the discussion titled,
Zone Paging (via Station Speakers).
ALL INTERCOM LINKS
BUSY INDICATION
When all intercom paths are busy, the system causes
the intercom light at each station to be on steady.
AUTO DIAL
Each multiline station provides programmable dialing
features. Programmable buttons can be programmed
to store numbers for automatic dialing purposes. The
stored numbers can be up to fifteen digits in length
and can include line or intercom selection, numbers, #,
S, pauses, and flash signals. A pause is stored each
time the HOLD button is pressed, and a flash signal is
stored each time the TAP button is pressed. The
pause and flash intervals are programmable. Any
programmable button that does not have a line
assignment can be programmed as an auto dial.
Additionally, an auto dial number can be stored as a
secondary function at every button programmed for
direct station selection. Often used host PBX or
CENTREX feature access codes can be stored at a
programmable button location to provide one-button
access to the features. Also refer to the discussions
titled, Automatic Pause Insertion, Station Speed Dial,
and Programmable DSS/BLF.
The auto-save feature can be used to save the last
manually dialed number at any unprogrammed button
or at a specific button that was previously reserved for
this purpose. The button chosen for auto-save must be
blank and not currently programmed as a DSS button,
line select button, or auto dial button. An auto-save
can be made at a button previously used as an
auto-save button; however, the previously stored
number will be over-written. As many manually dialed
numbers can be saved in this manner as there are
separate unused buttons to be used for storage. If a
dialed number is longer than 15 digits, two or more
buttons can be used to save portions of it for later
chain dialing.
AUTOMATIC ABANDONED
HOLD RELEASE
If a distant party abandons a hold condition and
disconnects, the central office (CO) will send a forward
disconnect signal to the telephone system. When the
key system detects this signal, it will drop the line from
the hold condition and return it to service. The forward
disconnect signal may be either 50 msec. or 350
msec. and the key system is programmable to match
this time interval. Both the system and the
administration programming can be used to set the
time interval between hang-up and line-drop.
AUTOMATIC HOLD TRANSFER TO INTERCOM
(ANSWER HOLD)
If the intercom line is selected while an outside line call
is active, this system feature causes the outside call to
be automatically placed on hold.
AUTOMATIC PAUSE INSERTION
When the system stores a dialed number for later
redial, it automatically stores a pause whenever the
user waits between digits. The automatic pause is
inserted in the stored number sequence at the point
where the manual pause in dialing occurred. The wait
time is programmable between 2 sec. and 750 msec.
The wait period is programmable by system or
administration programming.
AUTOMATIC PRIVACY
(PROGRAMMABLE)
A line can be made private or non-private through
class of service programming. In the private mode, a
station has exclusive use of the line during a call. No
other station can access that line unless it is included
through the use of the add-on conference feature. In
the non-private mode, all stations with that line
2-1
IMI 66-064 System Description
appearance can gain access at the same time
(sometimes known as common line pickup). A line is
specified as private or non-private through system or
administration programming. Also see the discussion
titled, Add-on Conference And Privacy Release.
AUTOMATIC REDIAL (OF BUSY
NUMBER OR UNANSWERED CALL)
Automatic redial of the last dialed number can be
made available at every station through button
programming. In most cases, the station user must
program a button for use as an auto redial button;
however, some telephone models provide an A16
button as part of the A-button field and this provides
an auto redial function as a fixed feature. With this
feature, a busy number or an unanswered call can be
redialed repeatedly. Once automatic redial is
activated, the station will select the line, automatically
dial the number, and wait for a response. It will do this
once a minute for approximately 10 minutes. The user
must lift the handset to take immediate control if the
call is completed. Users of the optional speakerphone
station can take control by pressing the SPKR button
instead of lifting the handset.
AUXILIARY EQUIPMENT INTERFACE
A non-key system telephone device or data device can
be connected ahead of the common equipment on
certain line ports across the tip and ring leads. Special
terminals in the line jack are provided for this purpose.
The system can detect an off-hook condition in the
connected device, and turn on the line status light at
the key system telephone stations with access to the
line to indicate the busy condition.
AUXILIARY STATION RINGER
INTERFACE
The auxiliary station ringer interface provides
“dry-contact” relay closures whenever station 17 rings.
The contact closures track the ringing pattern of
station 17, and can be used to control an external
signalling device. When a particular station port is
programmed to function as a PA port, the auxiliary
ringer interface relay contacts automatically become
supervisory contacts. They close when the PA port is
called. In this configuration, they are used to enable
an external PA system. Also refer to the discussion
titled, Common Audible Ringer Interface.
BACKGROUND MUSIC
If an external music source is provided, background
music can be turned on and off at individual stations.
Background music automatically turns off during calls.
The system provides all of the basic, 1A2-type, key
service features. These features are: selective line
pickup, common line pickup, multiline pickup, and
hold.
Battery back-up assemblies including chassis, cable,
and battery are offered as optional kits (available from
Comdial). The assemblies are designed to connect
directly to the un-interruptable power source (UPS)
interface located on the common equipment chassis.
No user intervention is required with this feature, and
no class of service programming is required.
Provision has been made for attaching a Comdial
provided optional battery back-up kit to give full
uninterruptable system power in case of an AC power
loss. The switching and trickle charge circuitry are in
the common equipment, while batteries, chassis, and
cable are packaged as a separate option. When
plugged into an active AC power source the common
equipment will constantly charge the attached
batteries with a trickle current. Built-in circuitry
automatically switches to battery power when AC
power is lost. With batteries at full charge, a fully
loaded system will operate for a minimum of one hour
without AC power. No class of service programming is
required.
The internal speaker at each multiline station provides
call-announce capability over the intercom link. A
handsfree response to a call-announce call can be
made. This response is transmitted by the microphone
built into the handset. Also refer to the discussion
titled, Voice Announce Blocking
A user at any station can dial a special prefix code,
followed by the number of a ringing station, to answer
a ringing call at that station.
A user at any station can dial a special code and
answer a ringing call at any station in the system. The
feature can be enabled or disabled by system or
administration programming.
BASIC KEY SERVICE (1A2)
BATTERY BACK-UP
(CHASSIS, CABLE, AND BATTERIES)
BATTERY BACK-UP INTERFACE
CALL ANNOUNCE WITH HANDSFREE
ANSWERBACK
CALL PICKUP - DIRECTED
CALL PICKUP - SYSTEM
Also refer to the discussion titled, External Music
Source.
2-2
System Description IMI 66-064
CALL TRANSFER - SCREENED
Screened call transfer allows outside calls to be
transferred from one station to another, via the
intercom link, in one of two ways. If both stations have
access to the line, a common line pickup transfer can
be effected. If the other station does not have access
to the incoming line, transfer can still take place using
the system transfer feature. For a screened transfer, a
call is transferred to another station with a pre-transfer
announcement by the transferring party. Transferring
of calls is accomplished with the T/C
(TRANSFER/CONFERENCE) button.
CALL TRANSFER - UNSCREENED
An active call can be transferred to another station
without being announced. The transferred call will ring
the other station and await an answer. The call will
automatically ring back to the transferring station after
a programmable recall period. A transferred call will
only ring if the station is idle. If the other station is busy
on intercom or is already ringing with another call, the
transferred call will immediately recall the transferring
station. If the other station is idle or has background
music enabled, it will start ringing immediately. If it is in
any other state, it will not ring until it returns to an idle
state.
CALLING STATION IDENTIFICATION
If the station number of a calling station has been
programmed into the DSS/BLF of a called station, the
calling station will be identified by the flashing BLF
light at the called station. The lights adjacent to
programmable buttons indicate status of DSS
telephones: dark = idle, steady-on = in use, and
flash = calling.
CLASS OF SERVICE PROGRAMMING (EACH LINE
AND STATION)
Each line and station in the system can be
programmed with a unique class of service operating
condition. Class of service programming can be
performed using instructions provided in Chapter 4.
CLASS OF SERVICE PROGRAMMING (FROM MAIN
STATION)
Both system and administration class of service (COS)
programming is performed from station 10 after a base
level programming step is entered. System COS
programming is used by the installer to configure the
system and assign the line conditions. Administration
COS programming is used by the on-site administrator
to re-configure the system as required. Line condition
assignment is not a part of administration
programming. Refer to Chapter 4 for programming
details.
COMMON AUDIBLE RINGER INTERFACE
Connections are available at the key service unit
which provide “dry-contact” relay closures whenever
an incoming line rings. These contact closures track
the ringing pattern and can be used to control an
external signalling device. When a particular station
port is programmed to be a PA port, the common
audible ringer interface contact points automatically
become supervisory contacts which close when the
PA port is called. In this configuration, they are used
to enable an external PA system. Also, see the
discussion titled, Auxiliary Station Ringer Interface.
DEFAULT FUNCTIONAL PROGRAM
At initial power up of the system, the operating
features are set to a specific group of operating
conditions (default conditions). The default conditions
provide a complete operating system for normal use.
The system can be left as a defaulted system or
operating conditions can be reprogrammed if desired.
A system can be defaulted at any time using the
master clear procedure included with the system class
of service programming; however, this action also
clears all user stored auto dial and speed dial
numbers.
DELAYED RINGING
Refer to the paragraph titled, Flexible Ringing
Assignments.
DIAL 0 FOR SYSTEM ATTENDANT
The system attendant station (station 10) is signalled
whenever the digit 0 is dialed on the intercom line.
DIRECT STATION SELECTION
INTERCOM
Refer to the discussion titled, Programmable
DSS/BLF.
DISTINCTIVE RINGING
The ringing cadence of an incoming call is the same
as the ringing cadence of the TELCO, PBX, or
CENTREX system. The ringing cadence of an
intercom call presents two tone bursts sounded every
4 seconds.
DO NOT DISTURB
Any station can be set to a do-not-disturb mode using
the SPKR button. While in this mode, the station will
not ring on any incoming call nor will it accept an
intercom call. A party making an intercom call to a
station set in the do-not-disturb mode hears a fast
busy tone. The feature cannot be overridden by the
calling party.
2-3
IMI 66-064 System Description
programming can be used to program a line port as an
DSS/BLF CONSOLE (OPTIONAL)
The DSS/BLF Console is designed to be a companion
to any system station. It is useful with high call
volumesystems which require a dedicated call transfer
location. The console provides a one-button direct
station selection (DSS) intercom and an associated
busy lamp field (BLF). It also provides one-button
access to system-wide, all-call paging. The console is
designed to be connected to any station port and
serve as a companion to the station connected to the
adjacent data-paired port. System or administration
programming is used to program a station port as a
DSS/BLF port.
END TO END SIGNALLING
ON INTERCOM
After an intercom call has been established, the
system can continue to send dialing signals (DTMF
tones) through the intercom path to station ports that
are programmed as OPX unit ports. This feature can
be performed from every station in the system, and is
used by peripherals such as an OPX unit and voice
mail equipment.
END TO END SIGNALLING
ON LINES
After an outside call has been established, the system
can continue to send dialing signals (DTMF tones)
through the telco network and have them received at
the distant end for inward call completion (bank by
phone, etc.). This conventional, off-hook dialing
feature can be performed from every station in the
system. No class of service programming is required.
EXCLUSIVE HOLD
Exclusive hold prohibits a held call from being
retrieved by any other station. The exclusive hold
condition also links the held call to the timed hold
recall timeout feature. After timeout, audible and
visual signalling will occur and the exclusive hold
condition will revert to a normal line hold condition.
System or administration programming can enable this
feature.
EXTERNAL PAGING INTERFACE
A station port or line port can be programmed to
interface with an external paging amplifier. The
paging amplifier can then be dial accessed through the
station port or directly accessed through the line port
from other stations in the system. DTMF tones can be
dialed through the interface to make a zone selection if
zone paging is provided by the external paging
amplifier. System or administration programming can
be employed to program a station port as an external
paging port. Only system class of service
external paging port.
EXTENDED DUAL TONE MULTIPLE
FREQUENCY (DTMF) TONES
The model XE telephone system can access
answering machines, banking computers, voice mail
equipment, etc. that require DTMF tones which are
longer than the standard 80 msec. tone. A shift to a
longer tone of preprogrammed length is automatically
made 10 seconds after a line is selected or 10
seconds after the last digit is dialed. A user can shift
from one tone length to the other by pressing the
HOLD button and then reselecting the line. It is
recommended that the shortest duration possible be
chosen. DTMF generation is a system feature and if
several stations are using the extended DTMF feature
at the same time, a delay in the time between button
press and tone sound may be noticed.
FLEXIBLE LINE ASSIGNMENT
Refer to the discussion titled, Square/non-Square
System.
FLEXIBLE RINGING ASSIGNMENTS
Ringing assignments are programmable on a per
station/per line basis. Ringing can be controlled for
every line that has an appearance at each station.
Direct, or immediate, ringing can be programmed for
some assigned lines and delayed ringing programmed
for others. Direct or delayed ringing is programmed
through system or administration programming.
HANDSFREE ANSWER INHIBIT
The MUTE button on a multiline station can be used to
block all handsfree answerback response. This
arrangement will prevent a station user from
monitoring another station site using the monitoring
ability of the voice announce feature. When the
button is pressed, all handsfree answerback is
disabled thus inhibiting any off-site monitoring. The
speaker light will flash to indicate that this feature is
active. Also refer to the discussion titled, Mute.
HEADSET INTERFACE
A station port can be programmed to allow the
operation of special telephones which provide the user
with a headset option. Programming for this feature is
through either system or administration programming.
HEARING AID COMPATIBLE HANDSET
The station handset is compatible with
magnetically-coupled hearing aids.
IDLE LINE PREFERENCE
The system can be programmed on a per station basis
to enable idle line preference. When idle line
preference is enabled, taking the handset off-hook will
2-4
System Description IMI 66-064
automatically connect the station to any assigned line
that is idle and has been arranged for this feature.
The line button will not have to be pressed. This
feature is mutually exclusive with prime line automatic.
Programming for this feature is through either system
or administration programming.
I HOLD AND I USE INDICATIONS
The light associated with a line button provides a
visual indication of the status of that line. When a
station user has a line in-use or on-hold at a station,
the light indication provided at that station is of a
different flash rate than the indication provided at the
other stations in the system.
INTERCOM CALL PROGRESS TONES
Intercom call progress is marked by special tones. A
steady tone is provided for dial tone. For tone
signalled intercom calls, a two-tone burst is sounded
every four seconds at a called station and returned to
the caller as ring-back. For a voice signalled intercom
call, a single tone burst is sounded at a called station
and returned to the caller as ring-back. When a called
station is busy on an outside call, the feed-back
supplied to the caller is programmable with class of
service programming. This feed-back can be either a
ring-back tone or a busy tone. When set for ring-back
tone, the called station sounds subdued ringing during
the call. When a called station is busy on the
intercom, a busy signal of one tone burst sounded
each second returns to the calling station.
INTERCOM LINE LOCKOUT
Refer to the discussion titled, Voice Announce
Blocking.
INTERCOM LINE TIMEOUT
Should the intercom line be selected with no dialing or
other action taking place, the intercom will timeout
after ten seconds, and return to an idle state.
LAST NUMBER REDIAL
Each station is provided with a last number redial
feature. This feature will save thirty digits of the last
outside number dialed. A newly dialed number will
always automatically replace a previously dialed
number. Upon command, the system will choose a
line and redial the saved number. The system will first
choose the prime line if assigned and idle. If it is busy
or unavailable, the system will choose any line
assigned to idle line preference. If they are
unavailable, the system will chose the last line used at
the station. If it is busy, no further choice is made.
Also refer to the discussion titled, Automatic Pause
Insertion.
LCD SUPPORT
The common equipment can be field modified with an
optional up-grade kit which allow the system to
support the use of LCD speakerphones having a
Liquid Crystal Display (LCD). The LCD speakerphone
ports are identified by system or administration
programming.
When a system is modified, the model code of it is
changed from an N prefix to a K prefix (i.e. N1024
becomes K1024, etc.).
LINE PRESELECTION
A line can be manually selected before lifting the
handset (for handsfree dialing) or after the handset is
lifted.
LINE TYPE
A line port is programmed as to type. The program
type is chosen based upon the toll restriction that is to
be applied to calls made over the line connected to
that port. A line port is assigned as type 1 when any
enabled toll restriction is to be applied with the first
digit dialed. Such a line type is often assigned when a
CO line is connected. A line port is assigned as type 2
when any enabled toll restriction is to be applied
beginning with the second digit dialed. Such a line
type is often assigned when a PBX or CENTREX line
with any trunk access code is connected. A line port is
assigned as type 3 when any enabled toll restriction is
to be applied beginning with the second digit dialed
whenever the first digit is a 9. If the first digit is not a
9, no restriction is applied. Such a line type is often
assigned when a PBX or CENTREX line with a trunk
access code of 9 is connected. Line types can only be
selected as part of system class of service
programming.
MANUAL HOLD
A button activated feature at each station will place an
outside line on hold. Pressing the HOLD button holds
the call, provides a distinctive flash rate of the line
button indicator, and allows the user to access other
station features. The holding station or any other
station which has access to the line can retrieve the
held call.
MEMORY RETENTION WITHOUT BATTERIES
Independent of the optional battery pack, the system
memory is electronically protected during AC power
failures by an electronic component sometimes
referred to as a “super-cap”. The stored program data
will remain in memory for a minimum of 30 hours
provided that the system has been powered
continuously for at least 30 minutes prior to the power
failure or disconnection.
2-5
IMI 66-064 System Description
speaker light flashes to indicate a muted condition.
MESSAGE WAITING
Special dialing codes enable a station user to control
the message waiting (MW) light at other stations in the
system. When the message waiting light is turned on
at a station, a call can be placed to the originating
station to pick up the message.
MODULAR WIRING AND JACKS/4-CONDUCTOR
WIRE SYSTEM
The system can be completely interconnected by
employing industry standard 50-pin connectors and
modular plug/jack combinations. Station wiring is
small, 4-conductor, twisted-pair cable throughout the
system.
MOMENTARY BUTTONS WITH LED
INDICATORS
The station buttons are momentary contact, press and
release types. They provide line selection, call
monitoring, and other feature selection. Visual
indication of the feature selection is provided by
solid-state, long-life, light emitting diodes (LEDs).
MULTILINE CONFERENCING
This feature will allow one or more multiline stations to
access two outside lines at the same time resulting in
a conference arrangement. Conference transmission
levels are not compensated.
MUSIC INTERFACE (EXTERNAL SOURCE)
A jack is provided on the common equipment for the
connection of a customer-provided KX registered
music source. Also refer to the discussions titled,
Background Music and Music-on-hold.
MUSIC-ON-HOLD
Music is provided to outside lines that are placed on
hold if an external music source is connected to the
system and the feature is turned on from station 10.
System, administration, or attendant programming can
be used to program this feature.
MUSIC-ON-HOLD SYSTEM-WIDE
ENABLE/DISABLE
Music is provided to outside lines that are placed on
hold if an external music source is connected to the
system. Music-on-hold can be disabled system-wide
by attendant action. Attendant programming is used
to enable/disable this feature. Also refer to the
discussions titled: Music Interface, and Music-on-hold.
MUTE
The button provides push-on/push-off operation. Also
refer to the discussion titled, Handsfree Answer Inhibit.
NIGHT TRANSFER (OF RINGING)
The day, or normal, ringing of incoming lines can be
transferred to a particular station or stations (chosen
through class of service programming) for off-hour or
special purpose answering. The night transfer mode
can only be activated from station 10. Night transfer of
ringing can be assigned to specific stations using
system or administration programming. It is then
turned on or off by using system or administration as
well as attendant class of service programming.
OFF-HOOK VOICE ANNOUNCE WITH HANDSFREE
ANSWERBACK
With the off-hook voice announce (OHVA) feature, an
announcement can be made from one station to
another station that is busy on a call. The OHVA
announcement is made in a manner that permits the
distant on-line party to hear it and to hear the verbal
response to it unless action is taken with the MUTE
button. The OHVA feature is available at stations that
are equipped with a multiline telephone and an adjunct
feature module (32-button DSS/BLF console with
call-announce). Two data-paired station ports are
required to provide OHVA operation.
An OHVA call is preceded by a ring burst. Then,
several quick tone bursts followed by the
announcement are delivered through the loudspeaker
in the adjunct feature module. The called party can
verbally reply to an OHVA call in a handsfree manner
without interrupting the active call. Reply is made by
speaking toward the OHVA microphone included in the
adjunct feature module. The distant on-line party can
hear this response unless the MUTE button is pressed
at the called station to mute the handset transmitter.
A station that has the voice announce blocking feature
turned on cannot receive an OHVA call.
Station class of service programming is used to
program a station port to be a multiline telephone port
and the data-paired port to be a console with call
announce port. Also refer to the discussion titled:
Secure Off-Hook Voice Announce.
ON-HOOK DIALING
Every multiline station provides manual and/or
automatic dialing while the station handset is on-hook.
An internal speaker monitors call progress for
completion. The handset must be taken off-hook to
provide the voice link on non-speakerphone stations.
Each station has a MUTE button which, when
pressed, will mute the handset transmitter (or internal
microphone on speakerphones) to prevent the user’s
voice from being heard by the distant party. The
2-6
System Description IMI 66-064
OPX SUPPORT
The system supports the operation of the optional off
premises extension (OPX) unit. System or
administration programming arranges a station port for
OPX operation.
A device (such as a model 2500 telephone set or
compatible device) that is connected through an OPX
unit to a station port can access both intercom and
outside lines. The system default provides intercom
line access when the device goes off-hook. With
either prime line alone or prime line and idle line
preference enabled through programming, the device
connected through the OPX unit will seize an outside
line when it goes off-hook. After going off-hook, the
user can get the intercom line by pressing theTAP
button. If no digits are dialed after going off-hook, the
outside line is dropped when the TAP button is
pressed. If digits are dialed after going off-hook, the
outside line is placed on hold when the TAP button is
pressed.
ORIGINATING DENIED
The ability to originate calls on certain lines can be
denied at individual stations through system
programming. The originating denied feature is
programmed on a per station/per line basis.
Originating denied does not prevent a user from
answering a ringing line, retrieving a held call or
receiving a transferred call. Call origination on a line is
denied at a particular station by the system or
administration programming.
PBX/CENTREX/CENTRAL OFFICE
COMPATIBLE
System features and programmable buttons support
the requirements of most PBXs, Central Offices, and
CENTREX systems. Numbers, #’s, S‘s, programmable
pauses, and flash signals can be made a part of every
stored number for access to host system feature
codes.
PERSONALIZED RINGING TONE
This programmable feature enables stations to ring in
a distinctive manner with one of four different tones.
The ringing tones are combinations of four different
frequencies and two different warble rates. Personal
ringing tones can be assigned with system or
administration programming.
POWER FAILURE TRANSFER
A power failure line connection is available for
installing an industry-standard telephone such as a
Comdial model 2500-xx. The installed power-fail
telephone is automatically connected directly across
line 1 by the system whenever there is an AC power
failure. Normal origination and reception of calls
through the power-fail telephone is possible during an
AC power failure. The power-fail telephone is
automatically disconnected as soon as power is
restored.
POWER ON, VISUAL INDICATION
The common equipment has a red LED which
monitors the status of the system, and provides an
“AC power-on” indication.
PRIME LINE AUTOMATIC
If a station is programmed for prime line automatic, the
designated outside line or intercom line will be
automatically selected when the handset is taken off
hook. Prime line pick up may be pre-empted by
preselecting another line before lifting the handset. If
the prime line is ringing, it is automatically answered
by lifting the handset. Assign a prime line to a station
through system or administration programming.
PRIVACY RELEASE
A line can be made non-private at a particular station
while remaining private at all other stations. This
arrangement allows other stations with that line
appearance to join that particular station whenever it is
on the privacy-released line. A line is specified as
private or non-private at a particular station with
system or administration programming. Also see the
discussions titled, Add-on Conference and Automatic
Privacy.
PROGRAMMABLE BUTTONS
All multiline keysets are equipped with a minimum of
twelve programmable buttons which can be
programmed a line pick-up, auto dial, station speed
dial, and DSS action. Refer to the discussions titled,
Auto Dial, Programmable DSS, And Station Speed
Dial. System or administration programming is used to
assign functions to programmable buttons.
PROGRAMMABLE DSS/BLF
(DIRECT STATION SELECTION/BUSY LAMP
FIELD)
A multiline station user can store true, one-button,
direct station selection (DSS) at any programmable
button location to create a DSS button. When this
button is pressed, any active outside call is
automatically placed on hold and an intercom call is
automatically made to that previously stored station
number. The visual indicators of the stations
programmed at the button locations form a busy lamp
field (BLF). The BLF conveys station status to the
user. An auto dial number can also be programmed
as a secondary function at every DSS/BLF memory
location. Also refer to the discussions titled, Tone Or
Voice Signalling (Intercom) and Auto Dial.
2-7
IMI 66-064 System Description
PULL OUT DIRECTORY
Each desk mounted telephone is equipped with a pull
out directory. This directory can be used for recording
the system speed dial, station speed dial, or other
frequently called numbers.
PULSE/TONE SWITCHABLE
When rotary dial lines are installed, the user can
switch from pulse (rotary dial signals) to tone (Dual
Tone Multiple Frequency signals - DTMF). This
feature is useful for accessing special circuits requiring
DTMF tones such as banking machines, etc. The
system is programmed on a per line basis to allow this
feature at all stations. The system or administration
class of service programming enables this feature on a
per line basis.
RINGING LINE PREFERENCE
The system can be programmed on a per station basis
to provide ringing line preference on all lines
programmed for ringing at a station.
When ringing line preference is enabled at a station,
taking the station off-hook automatically connects it to
any outside line which happens to be ringing at the
station. A line button will not have to be pressed. The
ability of a particular station to answer a ringing line
without line selection is enabled by the system or
administration class of service programming.
SECURE OFF-HOOK VOICE ANNOUNCE
With the secure off-hook voice announce (SOHVA)
feature, an announcement can be made from one
station to another station that is off-hook and busy on
a call. The SOHVA announcement is made in a
manner that prevents the distant on-line party from
hearing it or from hearing the verbal response to it
because the MUTE button must be pressed for reply.
The SOHVA feature is available at stations that are
equipped with a telephone that includes SOHVA
capability. The telephone requires two data-paired
station ports to provide SOHVA operation.
A SOHVA call is preceded by a ring burst. Then,
several quick tone bursts followed by the
announcement are delivered through the handset
receiver of the telephone. Delivering the
announcement in this manner prevents the distant
party from hearing it. A station employing a
speakerphone being operated in a handsfree mode
will receive a ring burst and can then be taken off-hook
to receive the SOHVA call. The announcing caller
receives several tone bursts to alert them that they are
making a SOHVA call and that they may not get a
reply should the called party choose to not respond.
Response to the SOHVA call is effected by pressing
and holding the MUTE button and speaking into the
handset. Because the MUTE button is pressed, the
distant party is prevented from hearing the response.
The system provides SOHVA operation at every
station port; however, a station that has the voice
announce blocking feature turned on cannot receive a
SOHVA call. Also, on handset equipped telephones,
the telephone headset cannot be used to receive a
SOHVA call.
Station clas of service programming is used to
program a station port to be a multiline telephone port
and the data-paired port as a console with call
announce port. Also refer to the discussion titled:
Off-Hook Voice Announce with Handsfree Answerback
and to the Chapter 3 paragraph titled: Secure
Off-Hook Voice Announce Station found on page 3-11.
SECURE OFF-HOOK VOICE ANNOUNCE (SOHVA)
GROUPS
The ability to receive and originate SOHVA and OHVA
calls is provided to every station in the system. Any
station in the system can send a SOHVA or OHVA call
to any other SOHVA or OHVA-equipped station in the
system. Through this feature, the ability of a station to
receive and/or originate SOHVA or OHVA calls can be
disabled through programming so that certain stations
can be grouped together for SOHVA or OHVA calling
between one another while other stations in the
system are excluded from this group. Stations can be
arranged in up to four different groups for exclusive
SOHVA or OHVA calling. For example, the stations of
an executive and an assistant can be arranged into the
same group as follows: Program the executive’s
station for receive in group 1 and program the
assistant’s station for originate in group 1. Do not
program any other stations to have receive or originate
capability in group 1. This arrangement provides
exclusive SOHVA or OHVA calling between the two
stations. More executive stations can be programmed
to have receive capability in group 1 thus giving the
assistant the ability to make SOHVA or OHVA calls to
them as well. These executive stations in group 1
cannot make SOHVA or OHVA calls to one another,
however, since they do not have originate capability.
Both class of service and administration programming
can be used to form SOHVA groups. Also refer to the
discussion titled, Secure Off-Hook Voice Announce
and Off-Hook Voice Announce with Handsfree
Answerback.
SELF DIAGNOSTICS
Each station can execute a self test when so enabled.
This test verifies processor, indicator, and tone
functions. Instructions for activating self diagnostics
are provided in Chapter 3, Section 3 of this publication.
2-8
System Description IMI 66-064
SINGLE-DIGIT STATION DIALING
Refer to the discussion titled, System Speed Dial.
SPEAKERPHONE (OPTIONAL)
The optional speakerphone provides handsfree
operation of all features, except voice signalled
intercom calls. The handset must be lifted for this
purpose.
SQUARE/NON-SQUARE SYSTEM
A system can be programmed to be square or
non-square as desired. In a square system, a specific
line is assigned to the same button on every station in
the system. In a non-square system, any line can be
assigned to any available programmable button on
every station in the system. Also refer to the
discussion titled, Tenant Service. Button mapping for
line appearance can be performed on each station
using the system or administration class of service
programming.
STATION BY STATION PRIVACY
Refer to the discussions titled, Automatic Privacy and
Privacy Release.
STATION SPEED DIAL
Each station can be programmed to provide ten speed
dial numbers at the keypad buttons. Station speed
dial numbers can be up to fifteen digits in length and
can include line or intercom selection, numbers, #, S,
pauses, and flash signals. A pause is stored each
time the HOLD button is pressed, and a flash signal is
stored each time the RECALL button is pressed.
SYSTEM SPEED DIAL
Thirty, system-wide, speed dial numbers are provided.
The system speed dial numbers can be up to fifteen
digits in length, and can include numbers, #‘s, S‘s,
pauses, and flash signals. System speed dial number
programming can only be performed at station 10;
however, once programmed, they can be used at
every station in the system. System, administration, or
attendant programming can be used to program
system speed dial numbers.
SYSTEM SPEED DIAL TOLL
RESTRICTION OVERRIDE
This feature makes it possible to override toll
restriction parameters when a system speed dial
number is dialed. With it, it is possible to use toll
restriction tables to restrict calls from being made to
certain toll areas yet allow specific numbers in the
restricted areas to be called by storing them as system
speed dial numbers. With overrride enabled, toll
restriction parameters assigned at a station will be
overidden when a system speed dial number is called.
With override disabled, toll restrictions assigned at a
station will prevent it from calling a system speed dial
number that matches the restrictions. Class of service
programming or Administration programming can be
used to enable or disable this feature. Refer to the
discussions titled, System Speed Dial and Toll
Restriction - Flexible.
SUBDUED RINGING
Subdued ringing is automatic at any station that is
busy on an outside line.
TAP (FLASH/RECALL)
When host system custom calling features are
available via a “flash” signal, the system can be
programmed so that the TAP button will generate a
“flash” signal when it is pressed. When custom calling
features are not available, the TAP button functions as
a positive disconnect or dial tone recall button. These
two features are mutually exclusive. The flash/recall
time is assigned through system or administration
programming.
TENANT SERVICE
Two or more closely located sites can simultaneously
be served by the same common equipment. Each site
is provided with dedicated trunk facilities and separate
feature and class of service complements. Also, refer
to the discussion titled, SQUARE/NON-SQUARE
SYSTEM. Button mapping for line appearance can be
performed on each station using the system or
administration programming.
TIMED HOLD RECALL
After a call has been on hold for a programmed length
of time, the system will recall the station that placed
the call on hold. It also visually signals all other
stations. The audible signal is repeated at the end of
each reoccurring time out period. The visual indication
continues until the held call is picked up. The system
or administration programming sets the timed hold
recall time period.
TOLL RESTRICTION - FLEXIBLE
Flexible toll restriction can be programmed to prohibit
some or all stations from calling a wide range of
number combinations while allowing specific
exceptions. Restrictions are specified by up to four
entries on a deny table while exceptions are specified
by up to four entries on an allow table. Allow entries
will always override deny entries. Up to eight digits
are permitted for each entry. A “match anything” digit
(# symbol) can be included as part of an entry to
represent any digit from 1 to 0. This is used to deny
or allow a range of numbers with one entry. A
separate pre-programmed 1+800 allow table permits
this dialing feature to be selected regardless of any
restrictions which may be specified. The dialing of 911
and 1+911 is always allowed.
2-9
IMI 66-064 System Description
Once programmed, flexible toll restriction is assigned
on a per line/per station basis. In addition to flexible
restriction, or as an alternative to it, stations can be
restricted with 1/0 call restriction assignment. When
1/0 call restriction is selected, 1+ 7 digit dialing can be
allowed if desired. Either system or administration
programming is used to specify the deny and allow
entries and assign the restriction to line and station.
TONE OR VOICE SIGNALLING
(INTERCOM)
Intercom calls can be tone signalled or voice signalled
as desired. The tone signalled intercom call must be
answered by lifting the handset. The voice signalled
intercom call can be responded to in a handsfree
manner. The class of service programming
determines which signalling method is employed as
the primary method when an intercom call is made.
The alternate method is available through user action
at the station. Intercom call progress is marked by
special tone signals. The system or administration
programming determines which type of intercom
signalling is first option signalling for the system. Also
refer to the discussions titled, Intercom Call Progress
Tones and Voice Announce Blocking.
VOICE ANNOUNCE BLOCKING
This feature allows the user to block voice announced
intercom signalling by dialing a special code. This
feature, when enabled, also blocks the reception of a
SOHVA call.
ZONE PAGING (VIA STATION SPEAKERS)
Zone paging allows groups of stations to receive
announcements through the station speakers. The
programming can enable zone paging in up to three
different zones. A station can be programmed to only
receive announcements or programmed to originate
announcements as well. Each station can be
programmed to be in any or all zones for both
receiving and originating announcements. The ability
of each station to originate and/or receive a page, and
the arrangement of the paging into different zones are
controlled by system or administration programming.
Also, refer to the discussion titled, All-Call Paging (via
Station Speakers).
2-10
System Description IMI 66-064
CHAPTER 3
INSTALLATION
SECTION 1
STANDARD INSTALLATION DETAILS
MOUNTING CONSIDERATIONS
The common equipment cabinet should be attached
•
vertically to any sturdy, flat, surface or vertically rack
mounted if desired.
Cabinet must be located within four (4) feet of a
•
proper electrical outlet. The system requires a
dedicated 117VAC 15 AMP circuit, with a third-wire
ground, supplied to a standard electrical outlet
(NEMA 5-15R).
The distance between the common equipment and
•
the TELCO/PBX jacks must be 25 feet or less as
per FCC requirements. A nominal distance of 7 feet
is recommended.
The mounting location must be secure and dry and
•
have adequate ventilation. The temperature range
of the location must be within 32-122 degrees F
(0-50 degrees C), and the relative humidity must be
less than 90 percent non-condensing.
If the mounting surface is damp or if it is concrete or
•
masonry material, a backboard must be attached to
the mounting surface to be used for common
equipment mounting. Suitable mounting
backboards are available commercially or can be
constructed out of 1/2-inch plywood cut to size.
Tools and hardware required:
•
Fasteners - wood screws (1/4 x 1-inch round head),
toggle bolts, or wall anchors
Screwdriver - to match fasteners
•
Electric drill - if prepared holes are required
•
Connecting tool - for fastening wires to a type-66
•
connector block.
Crimping tool - for 623-type modular plugs.
•
INSTALLATION NOTICE
Per The Underwriters Laboratories regulation 1459,
2nd edition, be aware of the following precautions
when installing telephone equipment that is to be
directly connected to the telephone company network:
Never install telephone wiring during a lightning
•
storm.
Never install telephone jacks in wet locations unless
•
the jack is specifically designed for wet locations.
Never touch uninsulated telephone wires or
•
terminals unless the telephone line has been
disconnected at the network interface.
Use caution when installing or modifying telephone
•
lines.
MOUNTING PROCEDURE
1. Unpack, and carefully inspect the common
equipment and telephones for shipping damage.
Notify the shipper immediately of any damages
found. Verify that the packages contain all parts
and accessories needed for proper installation and
operation.
2. If a backboard is required at the mounting location,
attach it securely to provide a stable mounting
surface for the equipment.
3. The common equipment is attached using three
mounting holes located as shown on Figure 3-1.
While refering to Figure 3-1, measure and mark the
location of the mounting holes on the mounting
surface.
4. Drill holes in the mounting surface of a proper size
to accommodate the hardware being used. If
necessary, prepare these holes with inserts,
anchors or other attachment devices as dictated by
the type of mounting surface.
5. Insert the top screws into the mounting surface, and
tighten them to within approximately 1/8-inch of the
surface.
6. Hang the cabinet on the top screws using the
mounting holes located on the rear of the cabinet.
Note that these holes are elongated with an
enlargement at one end. This feature allows the
cabinet to slide down on the screws to secure the
mounting when the cabinet is hung on them.
7. Insert a third screw through the mounting tab
located on the lower edge of the cabinet and into
the mounting surface, and tighten it into place
8. Place the individual telephones as desired and in
keeping with accepted industry and office
standards. A telephone can be wall mounted if
necessary as they are desk/wall reversible.
9. Interconnect the system per the details shown in
Tables 3-1 and 3-2 and Figure 3-3 shown at the
end of this section.
3-1
3-2
IMI 66-064 System Description
IMI 66-064 System Description
AC POWER CONNECTION
Employ a dedicated 117VAC 15 AMP circuit, with a
third-wire ground, supplied to a standard electrical
outlet (NEMA 5-15R) for the AC power connection.
AC power connection is illustrated in Figure 3-2
shown below.
A plug-in power line surge protector should be
•
installed between the power cord and the AC outlet.
Do not connect the AC power cord until the
•
installation has been checked.
To apply AC power, connect the power cord to the
•
electrical outlet.
BATTERY BACK-UP
The common equipment provides an interface
connector for the connection of an optional external
battery assembly. This assembly is available
separately as a kit.
CAUTION
Be sure that the AC power cord is connected
to the electrical outlet before connecting the
external battery assembly to the common
equipment interface connector. This ensures
that internal protection circuitry is operating to
prevent damage that could result from
improper connection.
When charged to full potential, the optional Comdial
•
model BBU01 external battery assembly provides a
minimum of one hour of operation should the AC
power to the system be interrupted. No calls will be
dropped when an AC power failure causes the
system to automatically switch over to BBU01
operation
The BBU01 external battery assembly may include
batteries from either of the following suppliers:
- Model PS-1265 from Power-Sonic Corporation,
Redwood City CA, 94032.
- Model EP1265-26 from Elpower Corporation,
Santa Anna, CA 92704
During AC operation, the common equipment
•
provides re-charging current to maintain the voltage
potential of the external battery assembly at an
operational level.
NOTE: The optional external battery assembly
requires approximately ten (10) hours to
completely re-charge to full potential after it has
been completely discharged and, in some
cases, when initially installed.
SYSTEM GROUNDING
The common equipment cabinet has internal
secondary surge protection on all line ports. In order
for this protection to be effective, the cabinet MUST be
connected to a reliable earth ground such as a metal
cold water pipe or a building frame ground. The
grounding wire must be of #10 or #12 insulated, solid
copper and separate from the three-wire AC line cord.
A ground stud is located on the common equipment
cabinet for this purpose. System grounding is
illustrated in Figure 3-2 on page 3-4.
3-3
IMI 66-064 System Description
LINE CONNECTIONS
The common equipment cabinet line terminations are
standard modular plug/jack connections. Each
modular jack (2-6) provides termination for two lines.
Modular jacks 2 and 3 also provide termination for an
auxiliary pair in addition to the two outside lines. CO
line terminations can be at a type 66M-xx connector
block or at individual 6-position modular jacks. Table
3-1 shows the line connection details.
The line cord that is routed between the CO line
termination and the common equipment cabinet
termination should be twisted-pair wiring.
Six-wire twisted pair cable is recommended for wiring
between the CO termination and modular jacks 2 and
3 to provide auxiliary equipment interface wiring. Refer
to page 3-16 for details.
CAUTION
To help ensure that external overvoltage
surges do not damage the system, verify that
gas discharge tubes or similar protection
devices are installed, and properly grounded,
on all connected outside lines.
STATION CONNECTIONS
Connections between the common equipment and
•
the stations for models N0616, N0820, and N1024
are via two type 66M-xx connector blocks which are
cable connected to the common equipment 50-pin
male connectors. Table 3-2a shows the station
connection detais. Station connections for the
model N0308 are via standard modular plug/jack
connections provided on the side of the common
equipment cabinet. These jacks are labeled by
station number. Table 3-2b details these
connections.
The maximum distance allowed from the common
•
equipment to the station when using #24 gauge,
twisted-pair cable is 1500 feet.
NOTE: If spare conductors exist in the cables that are
run between the common equipment 66M-xx
connector blocks and the station jacks, it is a
good practice to connect them to earth ground.
Doing this may help prevent them from
inducing radio frequency and/or AC
interference into the system.
CAUTION
The polarity between the individual wires in a
particular voice or data pair is not critical;
however, do not connect the voice circuits to
the data circuits.
STATION PAIRING
Station ports are paired for both data and overload
protection as follows:
10—11 14—15 18—19 22—23 26—27 30—31
12—13 16—17 20—21 24—25 28—29 32—33
3-4
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