Physical Description and Ordering Information (SX-100)
Physical Description and Ordering Information (SX-200)
Engineering Information
Multi Digit Toll Control
LOCATOR I
MITL9105/9110-98-220
MITL9105/911 o-98-300
MITL9105/9110-98-305
MITLSI 051911 O-98-31 0
MITLSI 051911 o-98-450
M ITL9105/911 o-98-451
M ITL9105/911 O-98-500
Speed Call
Attendant Console Description - Commercial
Attendant Console Description - Hotel/Motel
Programming and Maintenance Console Description
Traffic Measurement
Station Message Detail Recording
General Maintenance Information
MITEL STANDARD PRACTICE
,
I
ELECTRONIC PRIVATE AUTOMATIC BRANCH EXCHANGES
SECTION MITL9105/9110-98-000
Issue 2, August 1980
sx-1 00 “/SX~200 *
SUPERSWIITCH*
DOCUMENTATION INDEX
I
1. GENERAL
1.01 This section lists Mite1 Standard Practices
which have been issued pertaining to the
SX-100 and SX-200 Private Automatic Branch Exchanges.
2. DOCUMENTATION INDEX
2.01 The complete set of Practices are contain-
ed in two volumes as listed in Tables 2-l
and 2-2. Volume I basically covers the description
and operation of the PABX’s; while Volume II is
concerned with the installation and maintenance
aspects of the systems.
2.02 Sections commencing with MITL9105 and
MITLSIIO- contain information specific to
the SX-100 and SX-200 PABX respectively, while
those commmencing with MITL9105/9110- em-
brace both types of PABX.
TABLE 2-l
DOCUMENTATION INDEX - VOLUME I
MITL9105/9110-98-000 Documentation IndexM ITL910598-100 General Description
M ITL911 O-98-1 00 General Description
MITL9105/9110-98-105 Feature and Services
Description
M ITL9105-98-150 Physical Description
and Ordering lnformatior
M ITL911 O-98-1 50
MITL9105/9110-98-180 Engineering information
MITL9105/9110-98-212 Multi Digit Toll Control
M ITL9105/911 o-98-220 Speed Call
MITL9105/9110-98-300 Attendant Console
MITL9105/9110-98-305 Attendant Console
MITL9105/9110-98-310 Programming and
MITL9105/9110-98-450 Traffic Measurement
MITL9105/9110-98-451 Station Message Detail
MITL9105/9110-98-200 Shipping Receiving
MITL9105/9110-98-205 Installation Forms
MITL9105/9110-98-210 System Programming
MITL9105/9110-98-215
MITL9105/9110-98-320 Extension Test
MITL9105/9110-98-350 Troubleshooting
0 MITEL Corporation 1980
TABLE 2-2
and Installation
Installation Test
Procedures
Procedures
Page l/2
MlTEL STANDARD PRACTICE
ELECTRONIC PRIVATE AUTOMATIC BRANCH EXCHANGE
SECTION MITL910598-100
Issue 4, July 1980
sx=100*
SUPERSWITCH”
GENERAL DESCRIPTION
CONTENTS PAGE
GENERAL
1.
Introduction
Reason for Reissue ..................
Practice Index. ......................
2.
GENERAL DESCRIPTION
Physical Description .................
Features
Electrical Characteristics
3.
SYSTEM OPERATION
4.
SYSTEM CONFIGURATION
General
Equipment Shelf .....................
Primary Power Supply
Reserve Power Supply ................
Attendant Console ...................
5.
INSTALLATION AND MAINTENANCE
CONSIDERATIONS ..................
Installation .........................
Maintenance ........................
1.
GENERAL
Introduction
This section contains a brief description of
1.01
the SX-100. The section also details the
physical and electrical characteristics of the
system together with the installation and
maintenance considerations. For complete
details, refer to the required practice as listed in
Table l-l.
..........................
........................
.............
........................... 6
............. 8
................
...........
............................
................
11
11
11
13
13
13
16
16
16
TABLE l-l
1
1
1
1
1
2
8
SECTION NO. TITLE
MlTL9105/9110-98-000 Documentation Index
VI ITL910598-100 General Description
W ITL911 O-98-1 00 General Description
WITL9105/9110-98-105 Feature and Services
ivllTL9105-98-150 Physical Description
MITL9110-98-150 Physical Description
MITL9105/9110-98-180 Engineering Information
MITL9105/9110-98-212 Multi Digit Toll Control
M ITL91051911 o-98-220 Speed Cal I
MITL9105/9110-98-300 Attendant Console
MITL9105/9110-98-305 Attendant Console
MITL9105/9110-98-310, Programming and
MITL9105/9110-98-450 Traffic Measurement
MITL9105/9110-98-451 Station Message Detail
MITL9105/9110-98-500 General Maintenance
SECTION NO. TITLE
Practice Index
VOLUME I
Description
and Ordering lnformatio
and Ordering lnformatio
1.02 This section has been reissued to update
the general description of the SX-100 to
Generic 205.
2. GENERAL DESCRIPTION
2.01 The SX-100 is an advanced Electronic
Private Automatic Branch Exchange (PABX)
employing digitally controlled solid-state space-
0 MITEL Corporation 1980
* Trademark of MITEL Corporation
M ITL9105/911 o-98-000
M ITL91051911 o-98-200
MITL9105/91
M ITL9105/91
M ITL9105/91
MITL9105/91
M ITL9105191
o-98-205
O-98-21 0
O-98-21 5
1
o-98-320
o-98-350
Documentation Index
Shipping Receiving
and Installation
Installation Forms
System Programming
Installation Test
Procedures
Extension Test
Procedures
Troubleshooting
SECTION MITL910598-100
division switching and stored program control.
The SX-100 has a capacity of 160 ports. One hun-
dred and twelve of the ports are available for
assignments to lines, trunks and additional
receivers. The remaining 48 ports are reserved for
common control functions. Fig. 2-1 shows the
maximum line and trunk configuration. The
SX-100 is electrically compatible with most existing extension, key telephone, Private Branch
Exchange (PBX) and Central Office (CO) equipment and provides-
.
I
service to a maximum of four individual
customers
.
the use of a flexible numbering plan
.
the simultaneous use of DTMF and rotary
dial stations
.
optional use of attendant consoles-2 maximum
.
the sharing of attendant consoles between
customers
.
extensive selection of standard and op-
tional features
.
freedom from scheduled maintenance
.
automatic diagnostics
.
six power fail transfer trunks
.
free standing,
wall or rack mounting
cabinet
0’
optional reserve power supply
The SX-100 consists of a single cabinet
2.02
(containing the switching circuitry and the
system power supplies) and a cordless desk type
attendant console equipped with pushbutton d,ial
pad and control keys. Connections between the
equipment cabinet, the consoles, and the
distribution frame are made using connectorized
25 pair cables.
M ITL91051911 O-98-500 - M ITL91051911 o-98-350 and
the use of MITEL Action Procedures (MAP) locate
the defective circuit card or assembly, and indicate to the service personnel the required field-
replaceable unit. Diagnostic routines and
maintenance procedures do not interfere with
users not affected by the malfunction. Because
the system employs only electronic circuits,
preventative maintenance is not required.
2.03 Noiseless operation, exceptionally small
size, and environmental tolerance allow a
wide choice of locations for the equipment
cabinet.
Maintenance
2.04 The modular design and functional packaging of the SX-100 system permits rapid loca-
tion and replacement of defective equipment. Circuit malfunctions are detected by diagnostic
routines automatically initiated by the CPU.
-These diagnostic routines which are detailed in
Page 2
2.05 System expansion is achieved by the addition of plug-in line and trunk printed circuit
cards. Lines are added in increments of eight, CO
trunks in increments of four, and tie trunks in in-
crements of two.
Physical Description
2.08 The SX-100 equipment cabinet (See Fig. 2-2)
is of metal construction and has the follow-
ing dimensions:
Height 16.62in. (422mm), width
25in. (635mm), and depth 18.5in. (470mm). The
weight of a fully equipped PABX is approximately
,MAINl .ENANCE PANEL
. PRIMARY ’ POWER SWITCH
CABINET DOOR
I
EQUIPMENT SHELF
POWER &PLY
FRONT VIEW
PRIMARY POhER SUPPLY
CABLE CLAMPS
‘d7
REAR VIEW
Fig. 2-2 Equipment Cabinet
Page 3
SECTION MITL910598-100
70lbs (31.8kg). For a full description, see
MITL9105/9110-98-150.
2.07 All connections from the cross-connecting
terminals to the SX-100 equipment cabinet
are made using connectorized cables. Connections between the cross-connecting terminals,
the attendant console and external equipment are
made in accordance with accepted practice.
2.08 A reserve power supply consisting of a fully
enclosed steel casement of batteries and
charger is available as an option. These batteries
provide a minimum of two hours reserve power.
SX-100 Equipment Cabinet
2.09 The door on the front of the cabinet provides access to the system maintenance
panel and the printed circuit cards. The removable
rear panel provides access to the system power
supply, and the line and trunk connections. Cable
entry to the equipment cabinet is provided
through a cable duct in the rear of the cabinet.
2.10 The
and the primary power supply.
Maintenance Panel
2.11 The maintenance panel, mounted at the top
system from the maintenance console through a
50 pin connector. To the left of the maintenance
plug is the master power fail transfer switch and
five power fail transfer control switches. In addition, a test line is provided which allows service
personnel to access individual lines and trunks.
equipment cabinet holds the
maintenance panel, an equipment shelf,
of the cabinet, provides access to the
of trunk, line, and receiver cards. All connections
between shelves and external equipment are
made by connectorized cables from the rear of the
shelf. The system primary power supply, located
to the right of the equipment shelf, converts the
commercial input power to the required system
voltage levels.
2.13 The equipment shelf holds up to 22 printed
circuit cards which plug into the shelf
backplane. On the rear of the backplane are a
number of Amphenol plugs providing interconnections between the shelves and external equip-
ment. In addition to the plugs are a number of
screw down terminals allowing shelf connection
to the primary power supply unit. The equipment
shelf (Fig. 2-3) measures 10.75in. (273mm) high,
19in. (480mm) wide, 16.375in. (415mm) deep, and
weighs approximately 27lbs (12.2kg) fully equip-
ped.
Printed Circuit Cards
2.14 All circuit cards (Fig. 2-4) within the SX-100
are identical in construction and consist of
a fiberglass board with printed wiring patterns on
both of its faces. Riveted to the front of each
board is a transparent faceplate which allows the
LEDs mounted on the front of the boards to be
easily seen. The two color-coded card extractors
located at the top and bottom of the faceplate
identify the card position within a shelf and en-
sure that the card is seated correctly in the
backplane connector.
Primary Power Supply
2.15
The system primary power supply (Fig. 2-5),
mounted to the right of the equipment shelf
(total weight 15lbs (35Kg)) provides all system
Power from a 115Vac, 48Hz to 64Hz commercial
supply.
Reserve Power Supply
Equipment Shelf
2.12 Mounted directly below the maintenance
panel is the equipment shelf. This shelf pedestal for the SX-100 equipment cabinet
contains the system control logic plus a number
Page 4
I
2.16 The Reserve Power Supply is designed to
maintain complete system operation for a
minimum of two hours in the event of a commercial power failure. The batteries and the charger
are enclosed in a metal casement that forms a
weighing a total of 125lbs (56.7kg).
Fig. 2-3 Equipment Shelf
SECTION MITL910598-100
,CAUTION
NOTICE
PART NUMBER
TRANSPARENT
FRONT PANEL
CARD EXTRACTOR
Attendant Console
2.17
The SX-100 attendant console (Fig. 2-6) is
enclosed in a housing with a black plastic
faceplate. Located on either side of the console
are a pair of headset/handset jacks allowing
simultaneous operation and supervision. The con-
sole keyboard holds three rows of ten nonlocking
keys for the selection of features and completion
of calls. On the right of the keyboard is a 12-key
pushbutton dial pad. The console display,
mounted above the keyboard, displays the active
states of calls in progress. In addition to the call
status display is a busy lamp field, a trunk group
status field, a call waiting indicator, a digital
clock, and three alarm indicators. The weight of
the attendant console is approximately 13lbs
(59kg) and its dimensions are:
13.75in. (350mm)
wide, 6.8in. (176mm) high, 9.25in. (236mm) deep.
A complete description of the attendant consoles
is given in sections MITL9105/9110-98-300 Attendant Console Description and MITL91051
9110-98-305 Attendant Console Hotel/Motel
Description.
Fig. 2-4 Typical Printed Circuit Card
Maintenance Console
2.18
The construction of the maintenance console is identical to that of the attendant
Page 5
SECTION MITL9105-98-100
POWER SUPPLY
INTERCONNECT BOARD
PRIM
EDUIPMENT SHELF
Fig. 2-5 Primary Power Supply
Fig. 2-6 Attendant Console
Features
console, the only difference is in the functions of 2.19 Features are provided with the SX-100
the call and feature selection keys. A complete system in the form of Feature packages
description of the maintenance console is given (Generics). Table 2-1 lists the contents of these
in section MITL9105/9110-98-310 Maintenance Generics. For a detailed description refer to SecConsole Description.
t ion M ITL91051911 O-98-1 05.
Page 6
TABLE 2-l
SYSTEM FEATURES AND SERVICES
SECTION MITL910598-100
202 203 204 205
Account Codes
Alphanumeric Display for Attendant Position
Attendant Camp-On
Attendant CCSA Access
Attendant Console (Maximum 2)
Attendant Control of Trunk Group Access
Attendant Controlled Conference
Attendant Flash Over Trunks
Attendant Lockout
Attendant Position (2 Max.)
Attendant Transfer - All Calls
Automatic Callback Busy/Don’t Answer
(Station to Station Calls)
Automatic Callback - Busy (Station to Trunk)
Automatic Night Service Switching
Automatic Queuing to Attendant Position
Broker’s Call
Busy Lamp Field
Busy Verification of Station Lines
Call Forwarding - All Calls
Call Forwarding - Busy And Don’t Answer
Call Forwarding - Busy Line (DID)
Call Forwarding - Don’t Answer (DID)
Call Hold
Call Pick-Up
l l l
. . * .
. . .
. . . .
l l l
. . .
. . . .
. . .
. . . .
. . . .
. . . .
l l l l
. . . .
l l l l
. . . .
. . . .
. . . .
. . . .
l
0
. . .
. . .
. . .
. . . .
Call Waiting Service
Attendant Call Waiting
Terminating Call Waiting
Distinctive Tone Sianals
Calling Number Display to Attendant
Calls Waiting Indication at Attendant Position
CCSA Access
Class of Service Display to Attendant
Tandem Tie Trunk Switching
Termination Restriction
Threeway Conference Transfer
Through Dialing
T Requires external customer provided equipment
. . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . . Trunk Group Busy
. . .
. . .
. . . .
. . . .
. . . .
. . . .
. . .
. . . .
. . . .
. . . .
Tie Trunk Access
Timed Reminders
.
Toll Restriction
.
Multi Digit
Toll Terminal Access . . . .
Total “Do Not Disturb” Display . . .
Total “Message Waiting” Display
Total “Room Statt
Traffic Data Collectiont
Traffic Display to Customer
Transfer into Busy
.
Trunk Answer From Any Station
Attendant Position
Trunk Status Field
Trunk-To-Trunk Connections
Trunk Verification by Customer (TVC)
Trunk Verification
Untform Call Distribution fUCD)
Wake-Up Service
WATS Access
Wideband Data Sm
Wide Frequency Tc
202 203 204 205
. . . .
. . . .
. . .
IS” Display
(TGB) Indicators on _ _ _ _
by Station (TVS)
I ,
/itchinn
olerant Power Plant
. . .
.
.
. . .
. . . .
. I I .
. . . .
. . . .
l l l l
l l l
. . . .
. . . .
. . . .
l l l l
.
1309 -4
.
Feature Provisioning Electrical Characteristics
2.21 The electrical characteristics of the SX-100
2.20 All station features provided by the SX-100
are listed in Table 2-2.
may be grouped into different classes of
service, each class of service (a maximum of 16)
may contain any mixture of features. Feature in-
stallation consists of entering into the system
memory the number of the station to which the
features are to be assigned, followed by the required class of service code. All data entries into
the system may be made from the attendant, or
2.22 The SX-100 is designed to operate from a
48Vdc source. This can be provided by the
customer from a suitable source of 48Vdc.
2.23 In the event of a power failure with no
reserve power availabie, the SX-100 can be
arranged to automatically connect up to six Central Office trunks to preselected extensions.
maintenance consoles. To prevent the loss of
customer data in the event of a complete system
3. SYSTEM OPERATION
power failure, the memory holding the data
associated with each line or trunk is equipped
with its own reserve power supply. This power
supply is sufficient to maintain the memory intact
for a period of 4 weeks.
3.01 The SX-100 is a solid-state PABX employing
space division switching and
microprocessor control of call processing. A
block diagram of the PABX is shown in Fig. 3-1.
Page 8
TABLE 2-2
I
,
SX-100 ELECTRICAL CHARACTERISTICS
SECTION fVlITL9105-98-100 -
Station Loop Limit
Maximum Number of
Ringers per Line
Ringing
Standard
Special
Ring Trip
Dial Tone
Transfer Dial Tone
Busy Tone
Special Busy Tone
Standard Ringback Tone
Special Ringback.Tone
Callback
Trunk Loop Limit
Maximum Distance of
Console from Equipment
Operating Environment
1200 ohms including set
7
9OV, 20Hz - immediate ringing(optionof 17Hzor25Hi
1s on, 3s off
0.5s on, 0.5s off, 0.5s on, 2.5s off
During silent or ringing period
350/440Hz, continuous
350/440Hz, 3 bursts of looms, then continuous
480/620Hz, interrupted at 60ipm
350/440Hz interrupted at 60ipm
440/480Hz, 1s on, 3s off
440/480Hz, 0.5s on, 0.5s off, 0.5s on, 2.5s off
6 rings of standard ringing
480/620Hz, interrupted at 120ipm
440Hz, 1 burst of 1s
440Hz,one burst,of 200ms
440Hz, two bursts 100ms on, 50ms off, 1OOms on
for trunk camp-on
440Hz, one burst of 800ms followed by a 200ms
burst every 6s
75dB minimum
5dB f 0.5dB at 1004Hz
0.5dB +- 0.3dB at 1004Hz
0.5dB + 0.3dB at 1004Hz
54dB minimum, 200-3000Hz
14dB minimum
16dBrnC maximum
No counts over 46dBrnC
2OO)ls maximum
600 ohms nominal for lines
600 or 900 ohms nominal ,for trunks
7.5ccslline minimum at 100 lines at P = 0.01
lOO-125V, 47-63Hz, 4A maximum
1600 ohms
lOOOft. (300m) of 26AWG cable
0°C to 4O”C, 10% to 90% Relative Humidity
for
station camp-on
‘5,
3.02 The SX-100 has a capacity of 112 ports
which may be assigned to receivers, lines,
and trunks. The ports are scanned sequentially for
detection of signals every 3.2 milliseconds.
3.03 Call origination is detected during scanning, an
interrupt signal to the
microprocessor is generated, and a speech path
and receiver are assigned to the originating station. After dialing, the receiver is released and the
called party is connected to the same speech
path as the originator. There are 31 speech paths
available in the SX-100, and each of the 112 ports
has access to all 31 speech paths. -
Page 9
SECTION MITL910598-100
TO CENTRAL _
OFFICE
-------- ------ - ---I 1
I
I
I
I
31 SPEECH PATHS
- ------- ------ -------
7
I
I
I
I
I
CONSOLE
COMMERCIAL
POWER -
POWER SUPPLY
Fig. 3-I SX-100 Block Diagram
Page 10
SECTION MITL9105-98-100
4. SYSTEM CONFIGURATION
General
4.01 Fig. 4-l illustrates the SX-100 cabinet
layout.
Equipment Shelf
of line, trunk, console control, and receiver cards.
The common control cards are color coded and.
held in card positions 18 throu~ghr22,The consol_e
control cards occupy positions 16 and 17, ame
first receiver card position 15. These card positions are fixed for all systems. Card positions 1
4.02 The equipment shelf contains the five com- through 14 may be equipped with line, trunk or
mon control cards plus the required number receiver cards as shown in Fig. 4-2.
FRONT VIEW
REAR VIEW
Fig. 4-1 Cabinet Layout
Page11
SECTIOlU MITL910598-100
Fig. 4-2 Shelf Card Position
l
Line Card Provides 8 line circuits which
serve as interfaces between the station
equipment and SX-100 switching circuitry.
l
Trunk Card Provide either interfacing bet-
ween the Central Office and the SX-100
switching circuitry for 4 trunks or between
other PABX’s and the SX-100 for 2 tie
trunks.
l
Receiver Card The Dual Receiver or Quad
Receiver Cards respectively contain two or
four sets of rotary dial and DTMF receivers,
which are used to detect dialed digits, and
transfer them to a temporary store for call
processing.
l
Console Control Card This printed circuit
card provides the interface between the
commqn control and two consoles. The
first console control card (in position 17) is
assigned to Attendant Console 1 and the
Maintenance Console, The second console
control card (in position 16) is assigned to
Attendant Console 2.
l
Remote Control - PABX This card allows the
PABX to be accessed from a remote
maintenance centre for the purpose of con-
ducting administrative, maintenance and
test routines on the PABX. The card is not
normally supplied with the PABX and forms
part of the RMAT System (consult Section
M ITL9105/9110-98-101 Remote
Maintenance Administration and Test
System).
Tone Control Card All call progress tones,
along with DTMF and rotary dial pulse
generators, voice paging circuitry and
speech path testing functions are supplied
by this card.
Scanner Card Sequentially scans all ports
to detect signals that require processor action. This card also contains the night bell
relays, the paging control relays, 2 digit
display and the master reset button.
PROM/CPU Card Contains part of the
operating software in the form of a PROM
card module. This card contains the
microprocessor and associated circuitry.
Memory Expander card provides additional
memory space for the operating programs.
PROM/RAM Expander Card is identical to
the memory expander card with the exception of additional CMOS-RAM memory for
customer data (Speed Call, Automatic
Wakeup, Toll Control).
RAMlCOS provides CMOS-RAM memory for
customer data and a scratch pad RAM. The
CMOS memory is protected from power
failure by a card mounted battery pack.
Page S 2
SECTION MlTL910598-100
Primary Power Supply
4.03 The SX-100 power supply generates 48Vdc
from a 115Vac power main input, and uses
the 48Vdc to derive the system operating voltages
of +8V, - 5V, - lOV, -48V and 9OVac ringing
voltage.
4.04 The power failure transfer relays allow for
the connection of up to 6 Central Office
trunks to selected PABX stations in the event of a
major system failure or a power failure.
Reserve Power Supply
4.05 The reserve power supply is designed to
maintain complete system operation for a
minimum of two hours in the event of a primary
power failure. The reserve power supply is housed
in a completely enclosed unit and forms a base
unit on which the standard SX-100 cabinet can be
mounted. A cable harness is supplied to interconnect the two units. In the case of wall ti‘o’unted
version of the SX-100 the reserve power supply
may be installed adjacent to the SX-100.
Attendant Console
4.06 The layout of the SX-1001200 attendant console is shown in Fig. 4-3. The three rows of
buttons on the console faceplate are used to
select and handle calls. Each button has a light
emitting diode (LED) associated with it to indicate
the operational status of the button.
4.07 The console display area provides the attendant with specific information concern-
ing the call which is being handled as well as
general information such as the time of day, and
the busy/idle status of PABX stations and trunk
groups.
4.08 A brief description of the display, and the
functions of each pushbutton is given
below.
Console Display
4.09 Housed on the upper face of the console
are the following displays:
l
TRUNK GROUP STATUS One LED per trunk
group is used to signal the busy status of
the group (BUSY): Another LED per trunk
group is used to indicate that the attendant
has changed the trunk group from dial ac-
cess to attendant access (ATT). These indications are Drovided for UD to 10 trunk
groups. ’
I
Fig. 4-3 Attendant Console
Page 13
SECTION MITL910598-100
l
CALL WAITING (CW) Indicates how many
calls to the console are waiting to be
answered.
l
TIME A 12 hour or 24 hour digital clock is
provided as a standard item. This display
may optionally show the date.
l
ALARM This area contains three LEDs
labelled MAJOR, CONSOLE, and MINOR. A
MAJOR alarm indicates a serious system
malfunction and that failure transfer circuits have operated. A CONSOLE alarm indicates a console malfunction, and a
MINOR alarm indicates that a non-essential
circuit malfunction has been detected by
the system.
l
BUSY LAMP FIELD The centre of the
display area contains the busy lamp field
which provides a LED for each of 150 stations or trunks. When a station or trunk is
busy, the associated LED is illuminated.
Console Faceplate
4.10
The console faceplate holds the following
buttons:
.
LAMP TEST This button, when pressed,
causes all the console LEDs and sevensegment displays to turn on. In this way
faulty LEDs or displays can be readily
detected.
.
ALARM RESET This button is pressed to
reset the audible alarm signal in the event
of an alarm and also displays an alarm identification code in the Source and Destination display areas.
.
BELL OFF The console bell is disabled
when this button is pressed. The LED
associated with the button indicates the
bell off condition. The bell can be reactivated by pressing the button again.
l
SOURCE This area provides specific information about any party who calls the attendant.
NUMBER Displays the calling number.
CLASS Displays the calling party class-
of-service.
ATT. Indicates that the attendant is
talking to the calling party.
INT. Identifies the call as an intercept
call.
RCL Identifies the call as a recall.
DID Identifies the call as a Direct Inward
Dial call to the attendant.
MAN Identifies the call as a Manual Line
Service call.
l
DESTINATION The destination area supplies specific information about the party
called by the attendant.
NUMBER Displays the number of the
called party.
CLASS Displays the class-of-service of
the called party.
ATT Indicates that the attendant is
talking to the called party.
RING Indicates that the called party is
ringing.
BUSY Indicates that the called party is
busy.
ERROR Indicates to the attendant that an
invalid number has been dialed.
.
IDENT. In the event of a faulty connection
through the console, operation of this but-
ton will display the circuits used in the connection. The circuits used are displayed for
as long as the button is held down. When
the console is idle pressing the ident key
identifies the software generic and revision
level installed in the PABX and the console
identification.
NIGHT 1 This button is used to switch the
PABX into and out of night service 1. The
associated LED when lit indicates that the
PABX is in night service 1.
NIGHT 2 This button is used to switch the
PABX into and out of night service 2. The
associated LED when lit, indicates that
night service 2 has been selected. Night
service 1 and night service 2 are mutually
exclusive.
ROOM RESTR The ROOM RESTR button is
used to prevent unauthorized outgoing
calls from guest rooms when they are vacant.
MSGE WAIT This feature is enabled by the
attendant calling a room and pressing the
MSGE WAIT button. This causes the room
telephone to receive a burst of 3 rings every
20 minutes.
Page 14
SECTION MITL910598-100
CALLBACK This button allows the attendant to access the automatic callback
feature.
CANCEL The cancel button is used to
cancel a misdialed or busy call.
HOLD I-4The attendant can place a current
call on hold by pressing one of the hold but-
tons. The associated LED will light to indicate that the hold circuit is busy.
CALL BLOCK Rooms may be restricted
from calling other roonrs for specific time
periods.
FLASH This button is pressed to flash the
telephone company operator on long
distance calls.
SERIAL CALL This button is pressed to
enable incoming Central Office calls to
recall to the console when the called station hangs up.
steady on condition to indicate that the
conference circuit is in use.
PAGE Pressing the page button gives the
attendant access to the paging equipment
for as long as the button is held down. The
associated LED indicates that the paging
circuit is in use.
OVERRIDE This button allows the attendant to override an existing conversation.
REL The release button is used to release
the attendant from connections made
through the console.
RECALL The LED associated with the
RECALL button flashes to indicate a recall
to the attendant. The recall may be
answered by pressing the RECALL or
ANSWER button. After answering, both the
RECALL and ANSWER LED’s remain in a
steady on condition.
GUEST ROOM When this button is pressed
and the room number dialed certain infor-
mation will be displayed.
The room number and the “Message
Register” status appears in the
SOURCE display.
“Room Status” indicated by a digit
(2)
(followed by
room) in the DESTINATION display.
The “Do Not Disturb” status (in-
(3)
dicated by Do Not Disturb lamp)
The “Message Waiting” status (in-
(4)
dicated by MSGE WAIT lamp)
The ‘Controlled Outgoing Restric-
(5)
tion” status (indicated by ROOM
RESTR lamp)
Automatic Wakeup
(6)
CONF. The conference button is used to set
up an attendant conference. The
associated LED flashes to indicate a recall
from the conference, and remains in a
“.” if the maid is in the
DO NOT DISTURB This feature enables a
guest at his request not to receive incoming
calls.
DIAL 0 This button flashes to indicate a dial
“0” call which may be answered by pressing the DIAL 0 or ANSWER buttons. After
answering, both the ANSWER and DIAL 0
LED’s remain in a steady on condition,
LDN I-4 The LED’s associated with these
four buttons flash to indicate up to four dif-
ferent types of incoming trunk calls (e.g.
FX, CO, WATS, TIE). These may be
answered by pressing the appropriate LDN
button or the ANSWER button. After
answering, both the LDN and ANSWER
LED’s remain in a steady on condition.
SOURCE This button is pressed to split the
attendant to the source side of a call. The
LED indicates the split condition to the
source.
.
BOTH This button is pressed to connect the
attendant to both the source and destination parties. The associated LED lights to
indicate the three-way connection.
Page 15
SECTION MITL9105-98-100
.
DEST The destination button is pressed to
connect the attendant to the destination
side of a call. The associated LED is activated whenever the attendant is split to
the destination.
5. INSTALLATION & MAINTENANCE
CONSIDERATIONS
Installation
.
ANSWER This is a common answer button
for calls appearing on the RECALL, DIAL 0,
and LDN 1-4 buttons. The ANSWER LED
flashes when any incoming call appears on
the console, and remains in a steady on
condition when the call is answered.
.
ROOM STATUS The function of this button
is to monitor the status of each room.
Pressing this button and dialing one of five
possible single-digit codes indicates, on
the BUSY LAMP FIELD display, which
rooms correspond to a particular status
condition.
4.11
key pad which is used for dialing all calls, an
emergency transfer switch (mounted on the base
of the console) which switches the PABX into
failure transfer mode, and a volume control
(mounted on the right side of the console) to vary
the bell volume.
4.12 All console buttons are non-locking.
In addition to the buttons and LEDs
described above, the console has a 12 digit
5.01 Installation of the SX-100 is simplified by
the use of connector-ended cables and
plug-in printed circuit cards. The SX-100 is shipped with all printed circuit cards in place, and
with a complete set of installation and
maintenance documentation.
5.02 Expansion of the SX-100 is achieved by the
addition of printed circuit cards and ap-
propriate programming. Instructions covering all
aspects of expansion are included in the installation and maintenance documentation.
Maintenance
5.03 Maintenance of the SX-100 is enhanced by
the automatic diagnostics which, in most
cases, can pinpoint faults to a printed circuit
card. The repair person can also use a test line to
select paths through the PABX in order to isolate
faults. A system malfunction may be corrected by
the replacement of a printed circuit card. Should a
fault develop on a shelf backplane, the shelf
assembly itself is easily replaced.
Page 18
16 Pages
MITEL STANDARD PRACTICE
ELECTRONIC PRIVATE AUTOMATIC BRANCH EXCHANGE
SECTION MITLSIIO-98-100
Issue 6, July 1980
sx-200 *
SUPERSWITCH*
GENERAL DESCRIPTION
CONTENTS
I.
GENERAL ............................ 1
Introduction .......................... 1
Reason For Reissue
Practice Index.
2.
GENERAL DESCRIPTION
Maintenance
Physical Description ................... 3
SX-200 Equipment Cabinet .............. 3
Features
Electrical Characteristics
3.
SYSTEM OPERATION
SYSTEM CONFIGURATION ............. 9
4.
General .............................. 9
Equipment Shelf 1
Equipment Shelf 2
Primary Power Supply
Attendant Console .................... .I3
INSTALLATION AND MAINTENANCE
5.
CONSIDERATIONS ................... .I6
Installation
Maintenance
1.
GENERAL
Introduction
1.01 This section contains a brief description of
the SX-200. This section also details the
physical and electrical characteristics of the
system together with the installation and
maintenance considerations. For complete
details, refer to the required practice as listed in
Table l-l.
Reason For Reissue
1.02 This section has been reissued to update
the general description of the SX-200 for
Generic 205.
2.01 The SX-200 is an advanced Electronic
Private Automatic Branch Exchange (PABX)
employing digitally controlled solid-state space-
.......................... 2
.............................
.......................... .I6
......................... .I7
....................
........................ 1
...............
............... 8
..................
.....................
....................
.................
PAGE
.I3
.I3
TABLE l-l
Practice Index
VOLUME I
1
SECTION NO.
1
6
8
9
MITL9105/9110-98-000 Documentation Index
M ITL910598-100 General Description
MITLSI 10-98-100
M ITL9105/9110-98-105 Feature and Services
MITL910598-150 Physical Description
MITL9110-98-150 Physical Description
MITL9105/9110-98-180 Engineering Information
MlTL9105/9110-98-212 Multi Digit Toll Control
M ITL9105/911 o-98-220 Speed Cal I
MITL9105/9110-98-300 Attendant Console
MITL9105/9110-98-305 Attendant Console
MITL9105/9110-98-310 Programming and
MITL9105/9110-98-450 Traffic Measurement
MITL9105/9110-98-451 Station Message Detail
MITL9105/9110-98-500 General Maintenance
SECTION NO.
MITL9105/9110-98-000 Documentation Index
‘vllTL9105/9110-98-200 Shipping Receiving
VllTL9105/9110-98-205 Installation Forms
kllTL9105/9110-98-210 System Programming
WITL9105/9110-98-215 Installation Test
VllTL9105/9110-98-320 Extension Test
VllTL9105/9110-98-350 Troubleshooting
General Description
Description
and Ordering lnformatior
and Ordering lnformatior
4 a ~2~620242a323640444a525660646a7276aoa4aa9296iooio4
a
16
24
32
40
48
56
64
CT 72
:: a0
aa
96
104
112
120
E
128
g
136
144
152
160
168
176
la4
192
200
208
---SX-100. SINGLE SHELF SX-200 SYSTEM
-TWO SHELF SX-200
NOTES. LINES - 1 PORT REQUIRED PER LINE
TRUNKS - 2 PORTS/CO TRUNK
RECEIVERS 2 RECEIVER CIRCUITS/DUAL RECEIVER CARD
4 PORTS/E&M. TIE TRUNK
4 PORTS/DID, TIE TRUNK
4 RECEIVER CIRCUITS/QUAD RECEIVER CARD
.
optional use of attendant consoles - 2 max-
imum
l
the sharing of attendant consoles between
customers
.
extensive selection of standard and op-
tional features
l
freedom from scheduled maintenance
.
automatic diagnostics
l
twelve power fail transfer circuits
.
optional reserve power supply
2.02 The SX-200 consists of a single cabinet
(containing the switching circuitry and the
system power supplies) and a cordless desk type
attendant console equipped with pushbutton dial
pad and control keys. Connections between the
equipment cabinet, the consoles, and the
distribution frame are made using connectorized
25 pair cables.
2.03 Noiseless operation, exceptionally small
size, and environmental tolerance allow a
wide choice of locations for the equipment
cabinet.
Fig. 2-l Maximum Line and Trunk Configuration
division switching and stored program control.
The SX-200 has a capacity of 256 ports. Two hundred and eight of the ports are available for
assignments to lines, trunks and additional
receivers. The remaining 48 ports are reserved for
common control functions. Figure 2-1 shows the
maximum line and trunk configuration. The
SX-200 is electrically compatible with most existing extension, key telephone, Private Branch
Exchange (PBX) and Central Office (CO) equipment and provides:
.
service to a maximum of four individual
customers
l
the use of a flexible numbering plan
l
the simultaneous use of DTMF and rotary
dial stations
Maintenance
2.04 The modular design and functional packaging of the SX-200 system permits rapid loca-
tion and replacement of defective equipment. Cir-
cuit malfunctions are detected by diagnostic
routines automatically initiated by the CPU.
These diagnostic routines, which are detailed in
M ITL91051911 O-98-500 and M ITL91051911 o-98-350,
and the use of Mite1 Action Procedures (MAP)
locate the defective circuit card or assembly, and
indicate to the service personnel the required
field-replaceable unit. Diagnostic routines and
maintenance procedures do not interfere with
users not affected by the malfunction. Because
the system employs only electronic circuits,
preventative maintenance is not required.
2.05 System expansion is achieved by the addition of plug-in line and trunk printed circuit
cards. Lines are added in increments of eight. CO
trunks in increments of four, and tie trunks in increments of two.
Page 2
SECTION MITLgllO-98-100 ’
Physical Description
2.06 The SX-200 equipment cabinet (See Fig. 2-2)
is of metal construction and has the follow-
ing dimensions: Height 38in. (960mm), width
23.5in. (600mm), and depth 27.5in. (700mm). The
weight of a fully equipped PABX is approximately
290lbs. (131.7kg).
2.07 All connections from the cross-connecting
terminals to the SX-200 equipment cabinet
are made using connectorized cables. Connections between the cross-connecting terminals
and external equipment are made in accordance
with accepted practice.
2.08 A reserve power supply and battery charg-
ing system are available as an option. The
reserve power supply is designed to maintain
system operation for a minimum of two hours in
the event of a primary power failure.
SX-200 Equipment Cabinet
2.09 The door on the front of the cabinet provides access to the system maintenance
panel, printed circuit cards and reserve battery
supply shelf. The hinged rear panels hold the
system power supply, and provide access to the
line and trunk connections, and the reserve power
controls. Cable entry to the equipment cabinet is
provided through cable ducts on either side of the
cabinet.
2.10 The equipment cabinet holds the
maintenance panel, a maximum of two
equipment shelves, the optional reserve battery
supply, and the primary power supply. The
maintenance panel, mounted at the top of the
cabinet, provides access to the system from the
maintenance console through a 50 pin connector.
Mounted directly below the maintenance panel is
equipment shelf 2. This shelf holds line and trunk
cards only. Below equipment shelf 2 is equipment
shelf 1. This shelf contains the common control
plus a number of trunk, line, and receiver cards.
The optional reserve power supply is located at
the bottom of the cabinet. All connections bet-
ween shelves and external equipment are made
by connectorized cables from the rear of each
shelf. The system primary power supply, held on
the lower hinged back panel of the cabinet, converts the commercial AC power 115V or 230V to
the required system voltage levels.
Maintenance Panel
2.11 The equipment cabinet holds the
maintenance panel, an equipment shelf,
and the primary power supply. The maintenance
panel, mounted at the top of the cabinet, provides
access to the system from the maintenance console through a 50 pin connector. To the left of the
maintenance plug is the master power fail
transfer switch and five power fail transfer control
switches. In addition, a test line is provided which
allows service personnel to access individual
lines and trunks.
Equipment Shelves
2.12 Each equipment shelf holds up to 22
printed circuit cards which plug into the
shelf back plane. On the rear of the back plane are
a number of Amphenol plugs providing interconnections between the shelves and external equipment. In addition to the plugs are a number of
screw down terminals allowing shelf connection
to the primary power supply unit. The equipment
shelves (Fig. 2-3) measure 10.75in. (273mm) high,
19in. (480mm) wide, 16.375in. (415mm) deep, and
weigh approximately 27lbs. (12.2kg) fully equip:
ped.
Printed Circuit Cards
2.13 All circuit cards (Fig. 2-4) within the SX-200
are identical in construction and consist of
a fiberglass board with printed wiring patterns on
both of its faces. Riveted to the front of each
board is a transparent faceplate which allows the
LEDs mounted on the front of the boards to be
easily seen. The two color-coded card extractors
located at the top and bottom of the faceplate
identify the card position within a shelf and ensure that the card is seated correctly in the back
plane connector.
Primary Power Supply
2.14 The system prirnary power supply (Fig. 2-5),
mounted directly on the cabinet back panel,
(total weight 70lb., 32kg) provides all system
power from 115Vac or 230Vac, 48Hz to 64Hz commercial power supply.
Reserve Power Supply
2.15 The reserve power supply is designed to
maintain complete system operation for a
minimum of two hours in the event of a primary
Page 3
SECTION MITLSllO-98.100
(a) Front View
Page 4
(b) Rear View
Fig. 2-2 Equipment Cabinet
Fig. 2-3 Equipment Shelf
SECTION MITLSllO-98-100
-CAUTION
NOTICE
.PART NUMBER
,TRANSPARENT
FRONT PANEL
CARD EXTRACTOR
Fig. 2-4 Typical Printed Circuit Card
Fig. 2-5 Primary Power Supply
Page 5
SECTION MITL9110-98-100
power failure. The batteries are housed in a completely enclosed shelf measuring 7in. (180mm)
high, 19in. (480mm) wide, 14.5in. (370mm) deep
and weighing approximately 1251b. (56.7kg).
Attendant Console
2.16 The SX-200 attendant console (Fig. 2-6) is
enclosed in a housing with a black plastic
faceplate. Located on either side of the console
are a pair of headset/handset jacks allowing
simultaneous operation and supervision. The console keyboard holds three rows of ten nonlocking
keys for the selection of features and completion
of calls. On the right of the keyboard is a 12-key
pushbutton dial pad. The console display,
mounted above the keyboard, displays the active
states of calls in progress. In addition to the call
status display is a busy lamp field, a trunk group
status field, a call waiting indicator, a digital
clock, and three alarm indicators. The weight of
the attendant console is approximately 13lbs.
(5.9kg) and its dimensions are: 13.75in. (350mm)
wide, 6.8in. (176mm) high, 9.25in. (236mm) deep.
A complete description of the console is given in
Sections MITL9105/9110-98-300 Attendant Console Description and MITL9105/9110-98-305 Attendant Console Hotel/Motel Description.
Programming and Maintenance Console
2.17 The construction of the maintenance console is identical to that of the attendant
console, the only difference is in the functions of
the call and feature selection keys. A complete
description of the maintenance console is given
in Section MITL9105/9110-98-310 Maintenance
Console Description.
Features
2.18 Features are provided with SX-200 system
in the form of Feature packages (Generics),
Table 2-1 lists the contents of these Generics. For
a detailed description refer to Section
MITL9105/9110-98-105.
Feature Provisioning
2.19 All station features provided by the SX-200
may be grouped into different classes of
service, each class of service (a maximum of 16)
may contain any mixture of features. Feature installation consists of entering into the system
memory the number of the station to which the
features are to be assigned, followed by the re-
quired class of service code. All data entries into
Page 6
Fig. 2-6 Attendant Console
TABLE 2-l
SYSTEM FEATURES
202 203 204 205
Account Codes
Alphanumeric Display for Attendant Position
Attendant Camp-On
Attendant CCSA Access
Attendant Console (Maximum 2)
Attendant Control of Trunk Group Access
Attendant Controlled Conference
Attendant Flash Over Trunks
Attendant Lockout
Attendant Position (2 Max.)
Attendant Transfer - All Calls
Automatic Callback Busy/Don’t Answer
(Station to Station Calls)
Automatic Callback - Busy (Station to Trunk)
Automatic Night Service Switching
Automatic Queuing to Attendant Position
Broker’s Call
RIISV I amn Field
Busv Verification of Station Lines
Call Forwardina - All Calls
Call Forwarding - Busy And Don’t Answer
Call Forwarding - Busy Line (DID)
Call Forwarding - Don’t Answer (DID)
Call Hold
Call Pick-Up
Call Waitina Service
Attendan; Call Waitina
Terminating Call Waiting
Distinctive Tone Signals
Calling Number Display to Attendant
Calls Waitina Indication at Attendant Position
&A Access
Class of Service Display to Attendant
Code Calling Access
Code Restriction
Conference Callino
Contact Monitort
Controlled Outward Restriction
Controlled Station-To-Station Restriction
Controlled Termination Restriction
Controlled Total Restriction
Data Restriction
Date Display on Console(s)
Diagnostics - Automatic
Dial Access to Attendant
Digital Clock on Attendant Position
Direct Department Calling (DDC)
Direct Inward Dialing (DID)
Diredt Outward Dialing (DOD)
Direct Termination of Miscellaneous Circuits . . . .
On Attendant Position (Paging)t
Direct Trunk Group Selection (DTGS)
Directed Call Pick-Up
Hold-For- Pick-Up Option
Distinctive Ringing
-DTMF And/Or DCKP On Attendant Position
DTMF Calling
DTMF To Dial Pulse Conversion
Dump and Load of Customer Data
Executive Override
Flash for Attendant
Flexible Numbering of Stations
Foreign Exchange (FX) Access
t Requires external customer provided equipment
l l l
. . . .
. . .
. . . .
l l l l
. . .
. . . .
. . . .
. . . .
. . . .
. . . .
l l l l
. . . .
l l l l
. . . .
. . . .
. . 0 .
. . . .
l l l l
. . .
. . .
. . .
. . . .
. . . .
. . . .
. . . .
. . . .
l l l l
. . .
. . . .
. . . .
. .
. . . .
. . . .
. . .
. . .
. . .
. . .
. . . .
. .
. . . .
. . . .
. . . .
. . . .
. . .
. . . .
. . . .
. . . .
. . . .
. . . .
l l l l
. . . .
. . . .
. .
. . . .
. . . .
. . . .
. . . .
SECTION MITLSllO-98-100
.
l
-
Fully Restricted Station
Identified Trunk Group
Immediate Audible Ring on Attendant
Handled Calls
Immediate Ring
Incoming Call Identification (ICI)
Indication of Camp-On
Intercept Treatment
Attendant Intercept
-
Intercept Tone
Interposition Callina
Interposition Transfer
Inward Restriction
Line Lockout With Warning
Listed Directory Number (LDN) Service
Loudspeaker Pagingt
Direct Access by Attendant
Dial Access
Multizone
Priority Paging
Main/Satellite Service
Manual Originating
Manual Terminatir
w Service . .
ig Line Service
Meet Me Conference
Message Waiting (Audible)
Message Waitin? II amn1
Miscellaneous TI -
Priority Queue
Privacy and Lockout
Radio Paaina Accesst
Recall Dial 6ne
Recorded Telephone Dictation Access7
Remote Access to PBX Services
Remote Administration and Maintenance
(hardware ootion\
Re’ring From foll (ok Toil Terminal)
Reserve Power (hardware option)
Room Audit
Room Status
Rotary Dial Calling
Route Advance
Internal Charging
Station Override Security
Station-to-Station Calling
Straightforward Outward Completion
Switched Loop Operation
Tandem Tie Trunk Switching
Termination Restriction
Threeway Conference Transfer
Through Dialing
TABLE 2-l (CONT’D)
SYSTEM FEATURES
202 203 204 205
. . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . .
. . .
. . .
. . . .
. . . .
. . . l
. . . .
. . .
. . . .
. . . .
. . . .
Tie Trunk Access
-
Timed Reminders
.
Toll Restriction
.
Toll Terminal Access . . . .
Total “Do Not Disturb” Display . . .
Total “Message Waiting” Display . . .
Total “Room Status” Display . . .
Traffic Data Collectionf
Traffic Display to Customer
Transfer into Busy . . .
.
Trunk Answer From Any Station
Trunk Group Busy (TGB) Indicators on
Trunk Status Field . . a .
Trunk-To-Trunk Connections
Trunk Verification by Customer (TVC)
Trunk Verification by Station (TVS)
Uniform Call Distribution (UCD)
Wake- Up Service
WATS Access
Wideband Data Switching
Wide Freauencv Tolerant Power Plant
Battery Reversal
O/i Access
Multi Digit
Attendant Position
202 203 204 205
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
l l l l
. . l .
. . . .
. . . .
. . . .
l l l l
. .
.
.
.
t Requires external customer provided equipment
the system may be made from the attendant, or
maintenance consoles. To prevent the loss of
customer data in the event of a power failure, the
memory holding the data associated with each
line or trunk is equipped with its own reserve
power supply. This power supply is sufficient to
maintain the memory intact for a period of 4
weeks.
Electrical Characteristics
2.20 The electrical characteristics of the SX-200
are listed in Table 2-2.
2.21 The SX-200 is designed to operate from a
48Vdc source. A 48V power supply
operating from a 115Vac or 230Vac power main is
standard equipment. The SX-200 may be optional-
ly equipped with a charger and battery arrangement which provides a minimum of 2 hours
reserve power in the event of commercial power
failure.
2.22 In the event of a power failure with no
reserve power available, the SX-200 can be
1309 -4
arranged to automatically connect up to twelve
Central Office trunks to preselected extensions.
3. SYSTEM OPERATION
3.01 The SX-200 is a solid-state PABX employing
space division switching and
microprocessor control of call processing. A
block diagram of the PABX is shown in Fig. 3-1.
3.02 The SX-200 has a capacity of 256 ports. The
ports are scanned sequentially for detec-
tion of signals, each port being scanned for 12.5
microseconds. All ports are therefore scanned
every 3.2 milliseconds.
3.03 Call origination is detected during scann-
an interrupt signal to the micro-
ing,
processor is generated, and a speech path and
receiver are assigned to the originating station.
After dialing, the receiver is released and the called party is connected to the same speech path as
the originator. There are 31 speech paths
available in the SX-200, and each of the 256 ports
has access to all 31 speech paths.
Page 8
TABLE 2-2
SX-200 ELECTRICAL CHARACTERISTICS
SECTION MITL9110-98-100
Station Loop Limit
Maximum Number of Ringers per Line
Ringing
Standard
Special
Ring Trip
Dial Tone
Transfer Dial Tone
Busy Tone
Special Busy Tone
Standard Ringback Tone
Special Ringback Tone
Callback
Primary Power
Central Office Trunk Loop Limit
Maximum Distance of
Console from Equipment
Operating Environment
1200 ohms including set
7
9OV, 20Hz - immediate ringing(optionof 17Hzor25Hz
1s on, 3s off
0.5s on, 0.5s off, 0.5s on, 2.5s off
During silent or ringing period
350/440Hz, continuous
350/440Hz, 3 bursts of looms, then continuous
4801620Hz, interrupted at 60ipm
3501440Hz interrupted at 60ipm
440/480Hz, 1s on, 3s off
440/480Hz, 0.5s on, 0.5s off, 0.5s on, 2.5s off
6 rings of standard ringing
480/620Hz, interrupted at 120ipm
440Hz, 1 burst of 1s
440Hz,one burst’of 200ms for station camp-on
440Hz. two bursts 100ms on, 50ms off, 100ms on
for trunk camp-on
440Hz, one burst of 800ms followed by a 200ms
burst every 6s
75dB minimum
5dB +- 0.5dB at 1004Hz
0.5dB f 0.3dB at 1004Hz
0.5dB + 0.3dB at 1004Hz
54dB minimum, 200-3000Hz
14dB minimum
16dBrnC maximum
No counts over 46dBrnC
2OO)Js maximum
600 ohms nominal for lines
600 or 900 ohms nominal for trunks
7.5ccslline minimum at 100 lines at P = 0.01
lOO-125V, 47-63Hz, 4A maximum
1600 ohms
lOOOft. (300m) of 26AWG cable
0°C to 4O”C, 10% to 90% Relative Humidity
I
,\>a
4. SYSTEM CONFIGURATION
General
4.01 Fig. 4-l illustrates the SX-200 cabinet
layout.
Equipment Shelf 1
4.02 Equipment Shelf 1 contains the five common control cards plus the required number
of line, trunk, console control and receiver cards.
The common control cards are color coded and
held in card positions 18 through 22. The console
control cards occupy positions 16 and 17, and the
first receiver card position 15. These card positions are fixed for all systems. Card positions 1
through 14 may be equipped with line, trunk or
receiver cards as shown in Fig. 4-2.
l
Line Card Provides 8 line circuits which
serve as interfaces between the station
equipment and SX-200 switching circuitry.
l
Trunk Card Provides either interfacing between the Central Office and the SX-200
switching circuitry for 4 CO trunks, or bet-
ween other PABX’s and the SX-200 for 2 tie
trunks.
Page 9
SECTION MITLSllO-98.100
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STATIONS ;
TO CENTRAL
OFFICE
LINES
31 SPEECH PATHS
1
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7
-----------
1
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TONE CONTROL
CONSOLE /
COMMERCIAL 1
POWER
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,
CONSOLECONTROL
I I I I I I
I I
i i
i_-~~"""O"'""'_ i_-~~"""O"'""'_
-DATA/ADDRESS BUSS -DATA/ADDRESS BUSS
RECEIVER RECEIVER
1
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Lb----------------- -------- --_------__-_
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SCANNER SCANNER
POWER SUPPLY
POWER SUPPLY
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Page 10
Fig. 3-l SX-200 Block Diagram
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