Panasonic KX-TD500 User manual

2
Thank you for purchasing the Panasonic Model
KX-TD500, Digital Super Hybrid System.

System Components 3
System Components
Copyright:
This manual is copyrighted by Kyushu Matsushita Electric Co., Ltd.(KME). Under the
copyright laws, this manual may not be reproduced in any form, in whole or part, without the
prior written consent of KME and its licensee.
Kyushu Matsushita Electric Co., Ltd. 1999
Table 1: System Components Table
Model Description
Shelf KX-TD500
KX-TD520 Basic Shelf Expansion Shelf
Extension
Cards KX-T96170
KX-T96172
KX-T96174
KX-T96175
KX-T96185
KX-TD50170
KX-TD50172
KX-TD50175
HLC (Hybrid Line Circuit) Card
PLC (Proprietary Line Circuit) Card
SLC (Single Line Telephone Circuit) Card
SLC-M (Single Line Telephone Circuit with Message Waiting) Card
OPX (Off Premise Extension) Card
DHLC (Digital Hybrid Line Circuit) Card
DLC (Digital Proprietary ITS Line Circuit) Card
ESLC (Enlarged-Single Line Telephone Circuit with Message
Waiting) Card
Trunk Cards KX-T96180
KX-T96181
KX-T96182
KX-T96187
KX-TD50180
LCOT (Loop Start Central Office Trunk) Card
GCOT (Ground Start Central Office Trunk) Card
DID (Direct Inward Dialing Trunk) Card
T-1 Digital Trunk Card
ELCOT (Enhanced LCOT) Card
Resource
Cards KX-T96191
KX-T96193
KX-T96196
KX-TD50197
DISA (Direct Inward System Access Trunk) Card
AGC (Automatic Gain Control Trunk) Card
RMT (Remote Circuit) Card
ERMT (Enhanced Remote Circuit) Card
Other Cards KX-T96136
KX-T96161
KX-TD193
KX-TD50101
KX-TD50104
KX-TD50105
OHCA (Off Hook Call Announcement) Card
DPH (Doorphone Circuit) Card
Caller ID Card
CPU Card
TSW-CONF (TSW Conference Expansion) Card
DOHCA (OHCA for Digital Telephone) Card

4System Components
Note
CO : CO line access button
DSS: Direct Station Selection button
PF : Programmable Feature button
Table 2: System Components Table
Model Description
Analog
Proprietary
Telephones
(APTs)
KX-T7020
KX-T7030
KX-T7050
KX-T7055
KX-T7130
KX-T7885
APT with SP-PHONE (12-CO)
APT with SP-PHONE, 1-Line Display (12-CO)
APT with MONITOR (12-CO)
APT with MONITOR (3-CO)
APT with SP-PHONE, 1-Line Display (12-CO)
Wireless APT (12-CO)
Digital
Proprietary
Telephones
(DPTs)
KX-T7220
KX-T7230
KX-T7235
KX-T7250
DPT with SP-PHONE (24-CO)
DPT with SP-PHONE, 2-Line Display (24-CO)
DPT with SP-PHONE, 6-Line Display (12-CO)
DPT with MONITOR (6-CO)
KX-T7420
KX-T7425
KX-T7431
KX-T7433
KX-T7436
DPT with SP-PHONE (12-CO)
DPT with SP-PHONE (24-CO)
DPT with SP-PHONE, 1-Line Display (12-CO)
DPT with SP-PHONE, 3-Line Display (24-CO)
DPT with SP-PHONE, 6-Line Display (24-CO)
Proprietary
Equipment KX-T7040
KX-T7240
KX-T7440
KX-T7441
KX-T96186
KX-T30865
KX-T7090
KX-A46
DSS Console (32-DSS, 16-PF)
DSS Console (32-DSS, 16-PF)
DSS Console (64-DSS)
DSS Console with ANSWER and RELEASE buttons (48-DSS)
Off Premise Extension (OPX) Power Unit
Doorphone
Headset
Battery Adaptor

Important Information 5
Important Information
When using your telephone equipment, basic safety precautions should always be followed to
reduce the risk of fire, electric shock and injury to persons, including the following:
1. Read and understand all instructions.
2. Follow all warnings and instructions marked on the product.
3. Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or
aerosol cleaners. Use a damp cloth for cleaning.
4. Do not use this product near water, for example, near a bathtub, wash bowl, kitchen sink, or
laundry tub, in a wet basement, or near a swimming pool.
5. Do not place this product on an unstable cart, stand, or table. The product may fall, causing
serious damage to the product.
6. Slots and openings in the cabinet and the back or bottom are provided for ventilation, to
protect it from overheating, these openings must not be blocked or covered. The openings
should never be blocked by placing the product on the bed, sofa, rug, or other similar
surface. This product should never be placed near or over a radiator or heat register. This
product should not be placed in a built-in installation unless proper ventilation is provided.
7. This product should be operated only from the type of power source indicated on the
marking label. If you are not sure of the type of power supply to your home, consult your
dealer or local power company.
8. This product is equipped with a three wire grounding type plug, a plug having a third
(grounding) pin. This plug will only fit into a grounding type power outlet. This is a safety
feature. If you are unable to insert the plug into the outlet, contact yourelectrician to replace
your obsolete outlet. Do not defeat the safety purpose of the grounding type plug.
9. Do not allow anything to rest on the power cord. Do not locate this product where the cord
will be abused by people walking on it.
10.Do not overload wall outlets and extension cords as this can result in the risk of fire or
electric shock.
11.Never push objects of any kind into this product through cabinet slots as they may touch
dangerous voltage points or short out partsthat could result in a risk of fire or electric shock.
Never spill liquid of any kind on the product.
12.To reducetheriskof electricshock,donotdisassemblethisproduct,buttakeitto aqualified
servicemanwhen some service or repair work is required. Opening or removing covers may
expose you to dangerous voltages or other risks. Incorrect reassembly can cause electric
shock when the appliance is subsequently used.
13.Unplug this product from the wall outlet and refer servicing to qualified service personnel
under the following conditions:
a) When the power supply cord or plug is damaged or frayed.
b) If liquid has been spilled into the product.
c) If the product has been exposed to rain or water.
d) If the product does not operate normally by following the operating instructions. Adjust
only those controls, that are covered by the operating instructions because improper

6Important Information
adjustmentof other controls mayresult in damageand will often require extensive work
by a qualified technician to restore the product to normal operation.
e) If the product has been dropped or the cabinet has been damaged.
f) If the product exhibits a distinct change in performance.
14.Avoid using a telephone (other than a cordless type) during an electrical storm. There may
be a remote risk of electric shock from lightning.
15.Do not use the telephone to report a gas leak in the vicinity of the leak.

Attention 7
Attention
• Keep the unit away from heating appliances and electrical noise generating devices such as
fluorescent lamps, motors and television. These noise sources can interfer with the
performance of the Digital Super Hybrid System.
• This unit should be kept free of dust, moisture, high temperature (more than 40°C / 104°F)
and vibration, and should not be exposed to direct sunlight.
• Never attempt to insert wires, pins, etc. into the vents or other holes of this unit.
• If there is any trouble, disconnect the unit from the telephone line. Plug the telephone
directly into the telephone line. If the telephone operates properly, do not reconnect the unit
to the line until the trouble has been repaired by an authorized Panasonic Factory Service
Center. If the telephone does not operate properly, chances are that the trouble is in the
telephone system, and not in the unit.
• Do not use benzine, thinner, or any abrasive powder to clean the cabinet. Wipe it with a soft
cloth.
WARNING
THIS UNIT MAY ONLY BE INSTALLED AND SERVED BY QUALIFIED SERVICE
PERSONNEL.
WHEN A FAILURE OCCURS WHICH RESULTS IN THE INTERNAL PARTS
BECOMING ACCESSIBLE, DISCONNECT THE POWER SUPPLY CORD
IMMEDIATELY AND RETURN THIS UNIT TO YOUR DEALER.
DISCONNECT THE TELECOM CONNECTION BEFORE DISCONNECTING THE
POWER CONNECTION PRIOR TO RELOCATING THE EQUIPMENT, AND
RECONNECT THE POWER FIRST.
THIS UNIT IS EQUIPPED WITH AN EARTHING CONTACT PLUG. FOR SAFETY
REASONS THIS PLUG MUST ONLY BE CONNECTED TO AN EARTHING
CONTACT SOCKET WHICH HAS BEEN INSTALLED ACCORDING TO
REGULATIONS.
THE POWER SUPPLY CORD IS USED AS THE MAIN DISCONNECT DEVICE,
ENSURE THAT THE SOCKET-OUTLET IS LOCATED/INSTALLED NEAR THE
EQUIPMENT AND IS EASILY ACCESSIBLE.
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS PRODUCT TO
RAIN OR MOISTURE.

8Attention
When you ship the product
Carefully pack and send it prepaid, adequately insured and preferably in the original
carton.Attach a postage-paid letter, detailing the symptom, to the outside of the carton.DO
NOT send the product to the Executive or Regional Sales offices.They are NOT equipped to
make repairs.
Product service
Panasonic Servicenters for this product are listed in the servicenter directory. Consult your
authorized Panasonic dealer for detailed instructions.
The serial number of this product may be found on the label affixed to the bottom
of the unit. You should note the serial number of this unit in the space provided
and retain this book as a permanent record of your purchase to aid in identification
in the event of theft.
MODEL NO.:
SERIAL NO.:
DATE OF PURCHASE
NAME OF DEALER
DEALER’S ADDRESS
For your future reference

Introduction 9
Introduction
This Installation Manual is designed to serve as an overall technical reference for the Panasonic
Digital Super Hybrid System, KX-TD500. It provides instructions for installing the hardware,
and programming the system using the Maintenance Console software for a PC.
The Structure of This Manual
This manual contains the following sections:
Section 1 System Outline
Provides general information on the system including system capacity and specifications.
Section 2 Installation
Contains the basic system installation and wiring instructions, as well as how to install the
optional cards and units including environmental requirements.
Section 3 PC Programming Guide
Explains the structure of the Maintenance Console software and the basic information you
need.
Section 4 System Programming
Provides step-by-step instruction for performing system programming using the Maintenance
Console software for a PC.
Section 5 Utility
Describes the information necessary for testing, monitoring and maintaining the KX-TD500
System using the Maintenance Console software for a PC.
Section 6 Lists
Lists tones/ring tones and default values of System Programming.
Section 7 Troubleshooting
Provides information for system and telephone troubleshooting.
About the Other Manuals
Along with this Installation Manual, the following manuals are available:
Features Guide
Describes every basic, optional and programmable features of the KX-TD500 System in
alphabetical order.
User Manual
Designed for users of Digital Super Hybrid System, KX-TD500.
The focus is Digital Proprietary Telephones (DPTs), Digital DSS Consoles, Single Line
Telephones (SLTs) and their features.

10 Information
Information
Telephone Company and F.C.C. Requirements and Responsibility
1. Notification to the Telephone Company
Customers, before connecting terminal equipment to the telephone network, shall upon
request of the Telephone Company, inform the Telephone Company of the particular line(s)
to which such connection is made, the F.C.C. registration number (see the label on the
bottom of the unit) and ringer equivalence number (REN) of the registered terminal
equipment.
The REN is useful in determining the quantity of devices you may connect to your
telephone line and still have all of those devices ring when your telephone number is called.
In most, but not all areas, the sum of the REN's of all devices connected to one line should
not exceed five (5.0). To be certain of the number of devices you may connect to your line,
as determined by the REN, you should contact your local telephone company to determine
the maximum REN for your calling area.
2. Connection to Telephone Line
This unit must not be connected to a coin operated line. If you are on a party line, check
with your local telephone company.
3. Incidence of Harm to the Telephone Lines
Should terminal equipment cause harm to the telephone network, the telephone company
shall,where practical, notify the customer that temporary discontinuance of service may be
required. However, where prior notice is not practical, the telephone company may
temporarily discontinue service forthwith, if such action is reasonable in the circumstances.
In case of such unnotified temporary discontinuance of service, the telephone company
shall:
1) Promptly notify the customer of such temporary discontinuance of service.
2) Afford the customer the opportunity to correct the situation which gave rise to the
temporary discontinuance.
3) Inform the customer of the right to bring a complaint to the Federal Communication
Commission pursuant to the procedures set out in Subpart E of Part 68 of FCC
Telephone Equipment Rules.
4. Compatibility of the Telephone Network and Terminal Equipment
a) Availability of telephone interface information.
Technical information concerning interface parameters and specifications not specified
in FCC Rules, including the number of Ringers which may be connected to a particular
telephone line, which is needed to permit Terminal Equipment to operate in a manner
compatible with Telephone Company communications facilities, shall be provided by
the Telephone Company upon customer's request.
b) Changes in Telephone Company Communications Facilities, Equipment,
Operations and Procedures.
The Telephone Company may make changes in its communications facilities,
equipment, operations or procedures, where such action is reasonably required in the
operation of its business and is not inconsistent with the rules and regulations in FCC

Information 11
Part 68.
If such changes can be reasonably expected to render any customer Terminal Equipment
incompatible with Telephone Company Communications Facilities, or require
modification or alteration of such Terminal Equipment, or otherwise materially affect its
use or performance, the customer shall be given adequate notice in writing, to allow the
customer an opportunity to maintain uninterrupted service.
Notify the Telephone Company
Installation must be performed by a qualified professional installer. Before connecting this
equipment to any telephone, call the telephone company and inform them of the following:
• Telephone numbers to which the system will be connected
• Make: Panasonic
• Model: KX-TD500 and KX-TD520
• FCC Registration No.: found on the rear side of the unit
• Ringer Equivalence No.: 0.4B
• Facility Interface Code: 02LS2,02GS2, 02RV2-T, OL13C, 04DU9-BN/1KN/1SN
• Service Order Code: 9.0F, AS.2, 6.0P
• Required Network Interface Jack: RJ21X, RJ11, RJ48C
Note
Allowing this equipment to be operated in such a manner as to not provide for proper answer
supervision is a violation of Part 68 of the FCC's rules.
and:
Proper answer supervision is when:
A. This equipment returns answer supervision to the PSTN when DID calls are:
• Answered by the called station
• Answered by the attendant
• Routed to a recorded announcement that can be administered by the CPE user.
• Routed to a dial prompt
B. This equipment returns answer supervision on all DID calls forwarded to the
PSTN.Permissible exceptions are:
• A call is unanswered
• A busy tone is received
• A reorder tone is received
Note
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions manual, may cause harmful
interferencetoradiocommunications.Operationofthisequipmentina residentialareaislikely

12 Information
to cause harmful interference in which case the user will be required to correct the interference
at his own expense.
Caution :
Any changes or modifications not expressly approved by the party responsible for compliance
could void the users authority to operate this device.

Table of Contents 13
Table of Contents
1 System Outline
1.1 System Highlights.........................................................................................................18
1.1.1 System Highlights .......................................................................................................18
1.2 System Construction....................................................................................................20
1.2.1 Basic System ...............................................................................................................20
1.2.2 System Expansion .......................................................................................................21
1.2.3 System Capacity..........................................................................................................23
1.3 System Connection Diagram.......................................................................................28
1.3.1 System Connection Diagram.......................................................................................28
1.4 Service Cards Description ...........................................................................................30
1.4.1 Extension Cards...........................................................................................................30
1.4.2 CO Trunk Cards ..........................................................................................................31
1.4.3 Resource Cards............................................................................................................31
1.4.4 Other Cards .................................................................................................................32
1.5 Proprietary Telephones................................................................................................33
1.5.1 Proprietary Telephones................................................................................................33
1.6 Specifications ................................................................................................................34
1.6.1 General Description.....................................................................................................34
1.6.2 Characteristics.............................................................................................................35
2 Installation
2.1 Before Installation........................................................................................................46
2.1.1 Precautions ..................................................................................................................46
2.1.2 Slot Construction.........................................................................................................48
2.1.3 Guide Plate..................................................................................................................49
2.1.4 Amphenol 57JE type Connector .................................................................................50
2.2 Installation of Shelf ......................................................................................................51
2.2.1 Installation of Shelf.....................................................................................................51
2.2.2 Basic Shelf...................................................................................................................51
2.2.3 Expansion to 2-Shelf System ......................................................................................53
2.2.4 Expansion to 3-Shelf System ......................................................................................60
2.2.5 Ground Wiring.............................................................................................................67
2.2.6 Fixing on the Floor......................................................................................................68
2.3 Factory-Installed Card/Unit........................................................................................71
2.3.1 TSW Card....................................................................................................................71
2.3.2 TSW Conference Expansion Card (KX-TD50104) ....................................................72
2.3.3 DOHCA Card (KX-TD50105)....................................................................................73
2.3.4 Power Unit...................................................................................................................74
2.4 Extension Cards............................................................................................................75
2.4.1 DHLC Card (KX-TD50170).......................................................................................75
2.4.2 DLC Card (KX-TD50172)..........................................................................................76
2.4.3 ESLC Card (KX-TD50175)........................................................................................77
2.4.4 Maximum cabling distance of the extension line cord (twisted cable).......................78
2.4.5 Extension Connection of KX-A204 (Cable)/KX-A205 (Clip Terminal)....................79
2.4.6 Cable Pin Numbers for Extension Lines.....................................................................80
2.4.7 Parallel Connection of the Extensions.........................................................................97

14 Table of Contents
2.4.8 Extra Device port (XDP) Connection......................................................................... 99
2.5 Trunk Cards............................................................................................................... 100
2.5.1 E&M Card (KX-T96184)......................................................................................... 100
2.5.2 LCOT Card (KX-T96180)........................................................................................ 103
2.5.3 ELCOT Card (KX-TD50180)................................................................................... 104
2.5.4 BRI Card (KX-TD50288)......................................................................................... 105
2.5.5 PRI30 Card (KX-TD50290)..................................................................................... 106
2.5.6 Central Office Line Connection of KX-A204 (Cable)/KX-A205 (Clip Terminal).. 107
2.5.7 Cable Pin Numbers for CO Lines............................................................................. 108
2.5.8 E&M Line Connection of KX-A204 (Cable)/KX-A205 (Clip Terminal)................ 114
2.5.9 Cable Pin Numbers for E&M Lines......................................................................... 116
2.6 Resource Cards.......................................................................................................... 122
2.6.1 DISA Card (KX-T96191)......................................................................................... 122
2.6.2 AGC Card (KX-T96193).......................................................................................... 122
2.6.3 RMT Card (KX-T96196) ......................................................................................... 123
2.6.4 ERMT Card (KX-TD50197).................................................................................... 123
2.7 Other Cards ............................................................................................................... 124
2.7.1 CPU Card.................................................................................................................. 124
2.7.2 OHCA Card (KX-T96136)....................................................................................... 124
2.7.3 DPH Card (KX-T96161).......................................................................................... 129
2.7.4 Caller ID Card (KX-TD193) .................................................................................... 134
2.7.5 Pay Tone Card........................................................................................................... 135
2.3.2 TSW Conference Expansion Card (KX-TD50104).................................................... 72
2.7.7 TSW OHCA for DPT Card (KX-TD50105)............................................................ 138
2.8 Peripheral Equipment............................................................................................... 139
2.8.1 Battery Adaptor (KX-A46)....................................................................................... 139
2.8.2 External Pager (Paging Equipment)......................................................................... 141
2.8.3 External Music Source ............................................................................................. 142
2.8.4 Personal Computer/Priner ........................................................................................ 144
2.9 Auxiliary Connection for Power Failure Transfer.................................................. 148
2.9.1 Auxiliary Connection for Power Failure Transfer.................................................... 148
2.10 Starting Up the KX-TD500 System........................................................................ 151
2.10.1 System Power-Up Procedure.................................................................................. 151
2.10.2 CPU Rotary-Switch Features ................................................................................. 152
2.10.3 CPU RAM Test....................................................................................................... 155
2.10.4 System Status and LED Indicators......................................................................... 156
2.10.5 CPU Jumper Switch Setting................................................................................... 158
2.11 Lightning Protectors................................................................................................ 159
2.11.1 Lightning Protectors............................................................................................... 159
3 Maintenance Console Guide
3.1 Installing PC Programming Software ..................................................................... 166
3.1.1 System Requirements............................................................................................... 166
3.1.2 Starting Setup ........................................................................................................... 166
3.2 Structure of the Maintenance Console .................................................................... 169
3.2.1 Structure of the Maintenance Console ..................................................................... 169
3.3 Basic Operation ......................................................................................................... 171
3.3.1 Main Menu Screen ................................................................................................... 171
3.3.2 Setup Dialog............................................................................................................. 172

Table of Contents 15
3.3.3 Files...........................................................................................................................173
3.4 System Administration ..............................................................................................175
3.4.1 System Administration..............................................................................................175
3.4.2 On-site Administration (Local Connection)..............................................................175
3.4.3 Remote Administration (Remote Connection)..........................................................176
3.5 Operational Mode ......................................................................................................179
3.5.1 Operational Mode......................................................................................................179
3.5.2 Interactive Programming - On-site............................................................................179
3.5.3 Interactive Programming - Remote ...........................................................................180
3.5.4 Batch Programming...................................................................................................181
3.6 Backup.........................................................................................................................182
3.6.1 Backup.......................................................................................................................182
3.6.2 Download (from PBX to PC)....................................................................................182
3.6.3 Upload (from PC to PBX).........................................................................................183
3.7 End-User License Agreement....................................................................................185
3.7.1 End-User License Agreement ...................................................................................185
4 Utility
4.1 Introduction................................................................................................................188
4.1.1 Introduction...............................................................................................................188
4.1.2 Structure of Utility Program......................................................................................188
4.2 Diagnosis .....................................................................................................................189
4.2.1 Diagnosis...................................................................................................................189
4.2.2 Card/Port Test (On-line diagnosis)............................................................................189
4.2.3 CPU Test (off-line diagnosis)....................................................................................204
4.2.4 TSW Test (off-line diagnosis)...................................................................................206
4.3 Traffic Informatioin....................................................................................................213
4.3.1 Traffic Information....................................................................................................213
4.3.2 Station........................................................................................................................214
4.3.3 Trunk Group..............................................................................................................215
4.3.4 Operator.....................................................................................................................217
4.3.5 UCD (Uniform Call Distribution).............................................................................218
4.3.6 OGM..........................................................................................................................219
4.3.7 AGC...........................................................................................................................220
4.4 System Status..............................................................................................................221
4.4.1 System Status ............................................................................................................221
4.4.2 System Status Screen ................................................................................................221
4.4.3 Card Status Screen ....................................................................................................223
4.4.4 Port Status Screen......................................................................................................224
4.5 Error Log ....................................................................................................................226
4.5.1 Error Log...................................................................................................................226
4.5.2 Error Log Screen.......................................................................................................226
4.5.3 Error Message Tables................................................................................................228
4.6 Log File........................................................................................................................232
4.6.1 Log File .....................................................................................................................232
5 Troubleshooting
5.1 Troubleshooting..........................................................................................................236
5.1.1 Installation.................................................................................................................236

16 Table of Contents
5.1.2 Connection................................................................................................................ 237
5.1.3 Operation..................................................................................................................238
5.2 Troubleshooting Guide.............................................................................................. 240
5.2.1 Troubleshooting Guide............................................................................................. 240
5.2.2 Troubleshooting via the LED Indicators .................................................................. 240
5.2.3 Troubleshooting via Error Log Records................................................................... 243

System Outline 17
Section 1
System Outline
This section provides general information on the
system, including system capacity and specifications.

1.1 System Highlights
18 System Outline
1.1 System Highlights
1.1.1 System Highlights
Automatic Route Selection (ARS)
Automatically selects the pre-programmed least expensive route for outgoing toll calls.
Caller ID
Allows the extension user to see the name or telephone number of a caller on the telephone
display before answering the call.
Digital Proprietary Telephones (DPTs)
The system supports a wide variety of digital proprietary telephones which cover the range
from a monitor set to a large display hands-free version.
EXtra Device Port (XDP)
Each extension port on the DHLC card supports the connection of a digital proprietary
telephoneand asinglelinedevice.The devices havedifferentextensionnumbersandare treated
as two completely different extensions.
Paralleled Telephone Connection
Each extension port on the HLC or DHLC card supports the parallel connection of a
proprietary telephone and a single line device. They share the same extension number and are
considered by the system to be one extension.
Remote Station Lock Control
Allows the Manager and the Operators to lock an extension so that outgoing calls cannot be
made.
Super Hybrid System
This system supports the connection of digital and analog proprietary telephones, DSS
Consoles and single line devices such as single line telephones, facsimiles, and data terminals.
Trunk (CO Line) Answer From Any Station (TAFAS)
Ringing occurs over the external paging system; call can be answered from any station.

1.1 System Highlights
System Outline 19
Uniform Call Distribution (UCD)
Allows an incoming calls to be distributed uniformly to a specific group of extensions called
UCD Group.
VPS Integration
The system supports Voice Processing Systems with in-band DTMF signaling as well as DPT
integration.The Panasonic Voice Processing System provides automated attendant, voice mail,
interview and custom services.

1.2 System Construction
20 System Outline
1.2 System Construction
1.2.1 Basic System
Basic System consists of one Shelf called Basic Shelf and it can be equipped with up to 192
lines (including Extensions and CO lines).
Figure 1: Basic System
Basic Shelf
A Basic Shelf is always required. It contains its own power supply and 14 mounting spaces
called "Slots". The CPU card and the TSW card are installed at factory in Basic Slot 1 and
Basic Slot 2 respectively. The remaining 12 slots provide mounting space forvarious cards that
can be used. Any optional service card can be mounted in any one of these 12 slots. So these
slots are called "Free Slot".
POWER
ON 1
FUSE
OFF
DIGITAL SUPER HYBRID SYSTEM RUN OFF LINE ALARM

1.2 System Construction
System Outline 21
Construction of Basic Shelf
Figure 2:
1.2.2 System Expansion
Building Block System
The KX-TD500 system can consist of one, two, or three shelves (Basic and Expansion 1,2).
Each shelf contains its own power supply.
Expansion Shelf
An optional Expansion Shelf consists of its own power supply and 14 Free Slots for mounting
any optional cards. It can be equipped with up to 224 lines (including Extensions and CO
lines).
P
O
W
E
R
F
S
1
F
S
2
F
S
3
F
S
4
F
S
5
F
S
6
F
S
7
F
S
8
F
S
9
F
S
10
F
S
11
F
S
12
F
S
1
F
S
2