Mitel SX 200 DIGITAL Pabx General Descriptions Manual

							Features Description
two receive (R) leads. A typical example of the use of a Null Modem is its
employment, in the form of an adapter added to the RS-232C cable, when
connecting a 
dataset to a modem to form a Modem Element which is used
in a Modem Hunt Group.
ONS
See On-Premises Stations.
OPS
See Off-Premises Stations.Off-Premises Stations
Stations which are located at a considerable distance from the parent com-
munication system, and require special circuit terminating arrangements
at the PABX, are referred to as Off-Premises (OPS) stations.
On-Premises Stations
Stations which are installed on the same premises as the PABX, or which
can operate satisfactorily with the PABX, when installed in adjacent prem-
ises without special circuit arrangements, are known as On-Premises (ONS)
Stations.Overlap Outpulsing
Overlap Outpulsing is a feature used in the 5X-200 DIGITAL PABX when
making trunk calls. It results in dial pulses (or tones) being outpulsed prior
to the receipt of all required digits from the user, the purpose being to re-
duce the time needed to process the call.
PCB
Printed Circuit Board.
PCC
See Peripheral Control Card.
.
PCM
Pulse Code Modulation.
PLID
Physical Location 
IDentity -the bay number, slot number, circuit number
and sub-circuit number of a device; e.g., a DTMF Receiver circuit ‘plid’
might be: Bay 2, Slot 3, Circuit 2, Sub-circuit 1.
Peripheral Control Card
This card controls the operations within the analog peripheral bays, and is
under control of the Main Control card.105 A-129109-094-l 
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							Glossary of SX-200 DIGITAL TERMS
Peripheral Equipment
Peripheral Equipment, with regard to the SX-200 DIGITAL PABX, is under-
stood to be all those external equipments which are connected to the
5X-200 DIGITAL PABX, such as stations, telephones, trunks, attendant con-
soles, and maintenance terminals.
Peripheral Interface
Peripheral Interface cards are cards which provide the interface facilities
between the external peripheral equipments, such as stations; trunks and
attendant consoles. One of their prime functions is to convert the external
analog inputs to the internal digital PCM signals (and conversely convert
digital PCM to analog output).
Pooled Modem
A pooled modem consists of a 
dataset connected to a modem. The dataset
connects to a Digital Line Circuit. The modem connects to an ONS or OPS
Line Circuit. CDE programming associates the two circuits in the system
database.Pooled Modems are grouped into hunt groups called modem
pools; see Modem Pool in this Glossary.
Power Fail Transfer
The System Fail Transfer feature allows selected stations of the System (or
portions of the System, according to the type of outage), to be transferred
to certain trunks. Such transfer action is accomplished automatically in the
event of a failure of the main power supply. Transfer action is also accom-
plished on a “zone” basis in the event of power failure occurring, for ex-
ample, on a peripheral shelf.RS-232C
A North American data interchange standard, issued by the Electronics In-
dustries Association (EIA). The equivalent European standard is the V.24
specification.
Recall ButtonThis refers to the push-button installed on certain types of industry-stan-
dard telephones, for the purpose of providing a ground condition to the
line when the button is pressed. When used in conjunction with the
SX-200 DIGITAL PABX, pressing the Recall button corresponds to a 
switch-
hook flash; for example, when a party is being placed on hold. The button
is sometimes referred to as the Ground button.Ring Lead 
-
The second wire of a telephone pair (the first being the Tip Lead), so
named because it was originally connected to the “ring” of a telephone
Plug-
SMDR
See Station Message Detail Recording9 109-094-l 05-NAIssue 3 Revision 1105 A-13 
						

							Features Description
Scanner Card
This card continuously scans all of the analog ports in the analog bays to
detect signals which require processor action.
Second Dial Tone
A user making a trunk call through a PABX System normally receives dial
tone after the handset is removed, and then dial tone from the CO after
the trunk access code has been dialed. The 5X-200 DIGITAL PABX, howev-
er, with its ARS feature would mask the CO dial tone, because the 
outpuls-
ing sequences are isolated from the user. To prevent confusion a second
dial tone can be provided to the user (as a programmable option) by the
5X-200 DIGITAL PABX, at the appropriate point in the outpulsing se-
quence.
Side Tone
This is the portion of the transmitted voice signal that is returned to the
receiver of the transmitting extension.
Slip Rate
On a 
Tl Trunk, slip is the deletion or repetition of a single frame of infor-
mation in a digital bit stream. The slip rate is the number of such slips over
a 
24-hour period.
Soft Hold
See Consultation Hold.
Station Message Detail Recording (SMDR)
Station Message Detail Recording (SMDR) is a facility which records andprints out the details of incoming and outgoing trunk calls in the SX-200
DIGITAL PABX. Such details includ; the numbers of all parties involved in
the call, the time and duration of each call, account codes and other perti-
nent details. Practice 
9109-094-221-NA, Station Message Detail Recording
should be consulted for details of SMDR.
Stop Dial
In tandem trunk operations it may be necessary, during the course of es-
tablishing a call, to suspend the dialing of dial train sequences. This is to
ensure that no digits are lost, due to the next link in the tandem connec-
tion not being ready to receive the digits. The Stop Dial feature isemployed to stop the outpulsing of further digits, by sending an on-hook
condition to the originating end of the circuit.
Store arid Forward Dialing
See Overlap Outpulsing.Synchronous Mode
This term is associated with data which is transmitted in a continuous
stream at a fixed rate, with the receiving terminal synchronized to the105 A-14
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							Glossary of SX-200 DIGITAL TERMS
transmitting terminal by means of sync elements transmitted on a regular
basis; see also Asynchronous Mode.System Configuration
The term System Configuration has a specific meaning for the SX-200 DIGI-
TAL PABX, in that it refers to the particular hardware and software initially
installed for the System. Any subsequent additions, deletions and any oth-
er changes which occur result in a new System Configuration being
created. The listing of hardware and software items which comprise the
current System Configuration can be obtained on command from the
maintenance terminal.
System Fail Transfer
See Power Fail Transfer.
TCM
Transition Code Modulation.
lTY
This abbreviation is in common use to denote a teletypewriter machine.
Tandem Trunking
Tandem Trunking describes the facility of transparently switching 
co-
located trunks together at the 5X-200 DIGITAL PABX. This type of switch-
ing is subject to Digit Modification, and the parameters programmed dur-
ing CDE for the Interconnection Restrictions table.
Telco
The abbreviation used to denote Telephone Company.
Tie Trunks
Tie Trunks directly interconnect two PABX systems together. This enables a
station, terminated on one of the systems, to be interconnected to anyother station, terminated on the other 
system.With Tandem Trunking the
calling party can be extended through more than one node (PABX) of thenetwork.
Tip Lead
The first wire of a telephone pair, originally named because it was the lead
connected to the “tip” of a telephone plug; the second wire of the pair
being called the Ring Lead, as it was connected to the ring of the plug.
Toll Control
Toll Control, as applied in the SX-200 DIGITAL PABX, restricts the users to
the use of certain trunk routes and denies the use of specific directory9 109-094-l 
05NAIssue 3Revision 1105 A-15 
						

							Features Description
numbers. It forms part of the ARS feature, and each user is assigned a COR
which, being associated with the trunk route tables in ARS, determines
what degree of access the particular station has to the trunk network.
Tone Detector
Tone detection is a function provided by the Digital Signal Processor (DSP)
to detect and analyze call progress and DTMF tones.
Travelling Class Marks
In a private network, the caller’s Class of Service can be passed to the desti-
nation node to control access to services.
UPS
Uninterruptable Power Supply.
VNL
See Via Net Loss.
Via Net Loss 
(VNL)
This term is used in the transmission loss and level plans which are
employed within the North American public and private telephone net-
works. The VNL plan automatically applies gain or attenuation (loss), at
the switching node points, in a predetermined manner, to trunk and toll
connections in the network. This has the result of providing an acceptable
transmission grade of service to subscribers. See Practice
9109-094-180-NA, Engineering Information.
Wink Start
The Wink Start feature applies generally to tie trunk circuit operation.
When an incoming trunk is seized it may be necessary to prevent the trans-
mission of any digit sequences, until the incoming trunk equipment is
ready to receive these digits. When the incoming trunk equipment is ready
to receive the digits, a Wink Start condition is sent from the incoming end
to the originating end of the trunk. The distant termination can now send
digit sequences over the trunk.105 A-169109-094-l 05-NA Issue 3 Revision 1 
						

							APPENDIX B. SUMMARY OF CALL TYPES FOR CALL REROUTINGB.l This Appendix describes all of the call types found in the call rerouting
table. Unless otherwise noted, the CDE programmer can specify rerouting
destinations for Day, 
Night1 and Night2 service; see CALL REROUTING. Refer
also to Practice 
9109-094-210-NA, Customer Data Entry (CDE).
Station Dial 0 Routing
Any extension which dials the extension general attendant access code
(typically 0) is routed here. This is based on the caller’s tenant. See ATTEN-
DANT ACCESS (DIAL 0).
Priority Dial 0 Routing
Any extension which dials the extension general attendant access code
(usually 0) and has Priority Dial 0 in its COS is routed here. This is based on
the caller’s tenant. See PRIORITY DIAL 0.
DID Recall Points on Busy
A DID call reaching a busy destination is routed here, based on the destina-tion tenant, See DID/DIAL-IN/TIE INTERCEPTS.
DID Recall Points on No Answer
A DID call reaching an extension which does not answer is routed here.
This is based on the destination tenant.DID Routing for Calls into this Tenant
All DID calls are routed here to allow screening of DID calls. This is based
on the destination tenant. See 
DID/DIAL-INTTIE INTERCEPTS.
DID Intercept Routing for Calls into this Tenant
A DID call to an illegal number is routed here. This is based on the DID’stenant. See DID/DIAL-IN/TIE INTERCEPTS.
DID Vacant Number Routing for this Tenant
A DID call to a vacant number is routed here. This is based on the DID’s ten-ant. See 
DID/DIAL-INTTIE INTERCEPTS.
DID Attendant Access Night Points
A DID cali to the attendant while the system is in NIGHT service is routed
here. No destination can be specified for DAY Service. This is based on theDID’s tenant. See DID/DIAL-IN/TIE INTERCEPTS.
Non-Dial-In Trunks Alternate Recall Points
I
Non-Dial-In trunks and DISA trunks that have waited for a busy or non-
answering extension for the pre-determined recall time are routed here,based on the destination tenant. See 
DID/DIAL-INTTIE INTERCEPTS.
9 109-094-l OS-NAIssue 3 Revision 1105 B-l 
						

							Features Description
Dial-In Tie Recall Points on Busy
A Dial-In Tie call reaching a busy extension is routed here, based on the
destination tenant. See DID/DIAL-IN/TIE INTERCEPTS.
Dial-In Tie Recall Points on No Answer
A Dial-In Tie call reaching an extension which does not answer is routed
here, based on the destination tenant. See DID/DIAL-IN/TIE INTERCEPTS.
Dial-In Tie Routing for All Calls into this Tenant
All Dial-in Tie calls are routed here to allow screening of Dial-In Tie calls,
based on the destination tenant. See DID/DIAL-IN/TIE INTERCEPTS.
Dial-In Tie Intercept for Calls into this Tenant
A Dial-In Tie call to an 
iliegal number is routed here, based on the TIE
trunk’s tenant. See DID/DIAL-IN/TIE INTERCEPTS.
Dial-In Tie Vacant Number Routing for this Tenant
A Dial-In Tie call to a vacant number is routed here. This is based on the TIE
trunk’s tenant. See 
DID/DIAL-INTTIE INTERCEPTS.Dial-In Tie Attendant Access Night Points
A Dial-In Tie call to the attendant while this system is in NIGHT service is
routed here. No destination can be specified for DAY Service.This is based
on the Tie trunk’s tenant. See DID/DIAL-IN/TIE INTERCEPTS.Do Not Disturb Intercept Routing for this Tenant
An extension with Do Not Disturb activated has its incoming calls routed
here. This is based on the extension’s tenant.Automatic Wake-up Routing for this Tenant
All extensions (not SUPERSET or SUPERSE~4DN telephones) answering a
wakeup call are routed here. Normally this is a recording group, based on
the extension’s tenant. See Hotel/Motel features.
UCD Recording Routing for this Tenant
Incoming calls destined for UCD Agents are routed here when all of the
Agents are busy. This must be a recording group. See UNIFORM CALL DIS-
TRIBUTION and ATTENDANT AUTOMATIC OVERFLOW.UCD on Hold Time-out Routing for this Tenant
Incoming calls to busy UCD hunt groups which are not answered after a
pre-determined time-out period are routed here; see UNIFORM CALL DIS-
TRIBUTION.
DISA Day Service Routing for this Tenant
Direct Inward System Access (DISA) calls are routed here during DAY ser-
vice. No destination can be specified for NIGHT1 or NIGHT2 service, based
on the 
DISA trunk’s tenant; see TRUNK OPERATION - DISA.
105 B-29109-094-105-NA Issue 3 Revision 1 
						

							Summary of Call Types for Rerouting
Station Vacant 
Number Routing for this Tenant
Any industry-standard telephone dialing a vacant number is routed here,
based on the extension’s tenant; see VACANT NUMBER INTERCEPT.
Station Illegal Number Routing for this Tenant
Any industry-standard telephone dialing an illegal number is routed here,
based on the extension’s tenant; see ILLEGAL NUMBER INTERCEPT.9 109-094-l 05-NA
Issue 3Revision 1
,’105 B-3 
						

							APPENDIX C. DATA GLOSSARY
C.l This glossary defines data terminology and abbreviations used in the Data
Features description and in the Customer Data Entry forms.Auto Answer
A data device can keep its DTR “low” (not ready) until alerted. Auto An-
swer causes the 
dataset to “wake up” in answer mode when a call comes in
on the data line.
Autobaud To Host Character 1
In some cases the host computer is capable of adjusting itself to the baudrate of the transmitting 
dataset. The autobaud character programmed for
the SX-200 DIGITAL is dependant on the requirements of the host comput-
er.This is usually a carriage return entered from the terminal keyboard.
Autobaud To Host Character 2
This parameter has the same function and purpose of 
Autobaud to Host
Character 
1. The second character is used to confirm the baud rate setting.
Autobaud Detection
This feature enables the dataset to detect the baud rate of the attached
DTE (terminal, PC, etc.). When the RETURN or ENTER key is pressed from
the terminal keyboard the 
dataset detects the character and sends a baud
rate report to the system before the data call is processed. When the data
call originates from the 
dataset using the CALUATTN key, the previous
baud rate of the last session or the default baud rate is used.
Break Key Function
This parameter 
ide.ntifies whether the break key on the terminal keyboard
is used as a PABX Attention key or ignored by the system.
DTR Off Disconnect Timer
Certain functions such as screen refresh, terminal reset, etc. can cause a
temporary DTR low. This timer specifies the length of time a “low” level
has to be present before the session is terminated.
DTR To CTS Delay Timer
This timer specifies the amount of time before the system asserts the 
CTS
(clear to send) signal after it has detected DTR (data terminal ready).
DTRX Echoplex
Enabled, this parameter causes each character transmitted from the data
device to be echoed back to the terminal.
Flow Control
This parameter identifies the signaling method used by the attached datadevice to control the flow of information to and from the 
dataset. The
9109-094-l 05-NAIssue 3 Revision 1
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							Features Description
XON/OFF characters used to turn OFF and turn ON the transmission are a
common means of flow control. 
CTS indicates that pin 5 of the RS-232 con-nector is used to control the transmission 
(CTS “low” = no data flow;
“high” =
data flow).
Guard Timer
This timer specifies the amount of time the data circuit is unavailable fol-
lowing a disconnection (allowing time for the far end to perform the clear
down sequence)Hotline
This feature allows a user automatic connection to a predetermined desti-
nation.
Originate A DTRX Call With A Low To High Transition Of DTR
This parameter defines DTR “high” as indicating the origination of a data
call. It is typically enabled for HOTLINE services.
Parity
Parity is a means of determining if an error has occurred during the trans-
mission of a message. It involves the addition of error checking informa-
tion to the data which allows the receive end to perform a calculation veri-
fying that the information was received correctly. In the 
SX-ZOO DIGITAL
PABX, parity is used between the dataset and attached device; it is not
used to communicate between the two parties of a data call.
Session Inactivity Disconnect Timer
This timer monitors the length of time elapsed from the last key stroke.
When it times-out the data call is 
Perminated.
DATASET 1100 SERIES RS-232C PIN CONNECTIONS
Table C-l lists the RS-232C pin connectors used on the DATASET 1100 Series
datasets.
Table C-l 
DATASET 1100 Series RS-232C Pin Connections
Pin
2SignalDesignationDirection
TXtransmitto 
dataset
3Rxreceivefrom 
dataset4
RTSrequest to sendto datasetPage 1 of 2
105 c-2
9109-094-105-NA Issue 3 Revision 1