Karel MS26S Operating and safety instructions

Karel MS26s
Telephone System
Installation
&
Maintenance
Guide
Edition 3.1

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CONTENTS
SECTION PAGE
INTRODUCTION 1
TECHNICAL REFERENCE
I. SYSTEM 3
I.1. MB26s MOTHERBOARD 4
I.2. POWER TO THE SYSTEM 5
1.2.A. PS38 POWER ADAPTOR 5
1.2.B. POWER FAILURE TRANSFER STATIONS 7
I.3. EXTERNAL MUSIC CONNECTOR 7
I.4. EXTERNAL RELAY 7
II. ACCESSORIES 9
II.1. FEATURE PHONES - LT26s(-H) 10
II.2. MINI PRINTER - KY16 11
II.3. PC INTERFACE - CM26s 12
II.4. DOORPHONE – DY01 14
II.5. EXTERNAL ANNOUNCEMENT SYSTEM 15
II.6 BATTERY BACKUP UNIT - BBU38s 15
II.7. STANDARD TELEPHONE SETS – LADIN, FULYA 17
II.8. FILTER & PROTECTION UNIT – FPBASE, FPEXP 19
II.9. PROTECTION UNIT- SPBASE, SPEXP 20
III. SOFTWARE 21
IV. TECHNICAL SPECIFICATIONS 23
INSTALLATION
I. PRELIMINARY NOTICE 27
I.1. DELIVERY CHECK 27
I.2. INSPECTION 27
I.3. ENVIRONMENTAL REQUIREMENTS 27
II. SYSTEM INSTALLATION 29
II.1. GROUNDING 32
II.2. PS38 POWER ADAPTOR 32
II.3. MB26s MOTHERBOARD 33
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SECTION PAGE
III. ACCESSORY INSTALLATION 35
III.1. FEATURE PHONES 35
III.2. MINI PRINTER 39
III.3. PC INTERFACE 42
III.4. DOORPHONE 43
III.5. EXTERNAL ANNOUNCEMENT SYSTEM 46
III.6. BATTERY BACKUP UNIT 46
III.7. STANDARD TELEPHONE SETS, EXTERNAL LINES 49
III.8. FILTER & PROTECTION / PROTECTION UNITS 49
III.9. EXTERNAL MUSIC SOURCE 51
III.10. EXTERNAL RELAY 51
MAINTENANCE
I. MAINTAINING THE SYSTEM 53

INTRODUCTION
This Installation and Maintenance Guide provides an overall technical
reference on the KAREL MS26s system and its accessories and
includes descriptions, structures and capabilities as well as the
installation and maintenance information.
This guide is formed up of three main chapters:
1) Technical Reference: The system outline is given and all the
accessories are described. Brief information about the software
structure of the system is presented and finally the technical
specifications of the system are listed.
2) Installation Guide: The basic system installation and wiring
instructions are presented. Following the system installation part,
the installation and wiring of the accessories are explained.
3) Maintenance Guide: The basic steps to solve the problems faced
after the installation of the system are given.

TECHNICAL REFERENCE

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I. SYSTEM
MS26s system has a capacity of 2 lines and 6 extensions.
The system consists of the following parts :
• CBN26s Cabinet made of plastic,
• MB26s Motherboard,
• PS38 Power Adaptor, including a plastic cabinet (called PS38CB) and a
power card (called PS38CR).
See the following figures to have a general idea about the outlook as well as the
structure of the system.
Figure A-1

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Figure A-2
I.1. MB26s MOTHERBOARD
The MB26s motherboard consists of the microprocessor, utility, DTMF, switching,
line and extension circuitries. See the following figures for the location of these
circuitries and the operational flow diagram of MB26s motherboard.
Figure A-3

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Figure A-4
The MS26s motherboard has 2 lines and 6 extensions. By default, the extensions
have numbers 11 to 16 whereas the lines have numbers 1 or 2.
The dimensions of MB26s are 21 cm x 23 cm and the weight is 0.35 kg.
I.2. POWER TO THE SYSTEM
MS26s system can operate for the mains input of 230 VAC 50 Hz, which is
processed by the PS38 Power Adaptor.
Inside the fuse slot on the PS38CR card of the PS38 Power Adaptor, there exists a
T-Type fuse of 0.63A / 250 VAC for the first step protection.
I.2.A. PS38 POWER ADAPTOR
The outlook of PS38 Power Adaptor is illustrated in the following figure .

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Figure A-5
PS38 Power Adaptor has the PS38CR Power Card surrounded by the PS38CB
Cabinet, which is made of plastic.
PS38 Power Adaptor is a Switched Mode Power Supply (SMPS) operating at mains
voltage. Receiving 220 VAC over the mains, PS38CR generates –24 VDC and 8
VDC for the system and accessories as well as 64 Vrms ring signal. The output of
8 VDC is also regulated to 5 VDC by the MB26s motherboard.
PS38 Power Adaptor can be directly plugged in the mains socket on the wall. The
connection to the system is established via the built-in cable that is directly
connected to PS38CR. The 8-pin RJ plug at the end of this cable is to be attached
to the 8-pin RJ socket (named POWER) on MB26s motherboard.
The pin-out of the POWER socket on MB26s motherboard is illustrated in the
following table.
POWER Socket
Pin Signal
1 GND
2 GND
3 - 24 VDC
4 - 24 VDC
5 + 8 VDC
6 + 8 VDC
7 GND
8 64 Vrms (Ring)
The dimensions of PS38 are 11 cm x 6 cm x 8 cm and the weight is 0.25 kg.

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I.2.B. POWER FAILURE TRANSFER STATIONS
In case of power failure the stand-by battery backup allows the system resume
operation without any interrupt.
In case there is no battery connected to the system when the power goes off, the
lines 1 and 2 are automatically connected to extensions 11 and 12, respectively.
See the following figure illustrating the power failure transfer stations of MS26s
system.
Figure A-6
I.3. EXTERNAL MUSIC CONNECTOR
Any external music source (tape recorder, radio or CD player) can be connected to
the system to be used for background music facility and to be transmitted to the
parties parked or put on hold. This connection is established via the 2-pin MUS
connector on the MB26s motherboard.
I.4. EXTERNAL RELAY
An external relay which is rated for 250 VAC - 24 VDC at a maximum current of 2 A
exists on the system motherboard to be used to activate either a door opener or an
external ringer. The connection to the external relay is established through the 2-
pin XREL connector on the MB26s motherboard. The selection among these
devices is made by programming.

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II. ACCESSORIES
To offer you a full telecommunication system, MS26s is equipped with many
accessories. These accessories are shown in the following figure and explained
one by one in the following sections.
Figure A-7

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II.1. FEATURE PHONES - LT26s(-H)
There are two types of LT26s Feature Phones, LT26s Feature Phone and LT26s-H
Handsfree Feature Phone, the second one being half-duplex. The LT26s(-H)
Feature Phone is equipped with a 2 x 16 menu driven LCD, which offers self
explanatory messages for the user to monitor the state of operation and access
many system features. Also, it is possible to make one touch dialing for accessing
any extension / line or calling a Private Pool number, by the help of the 10
programmable keys in the upper keypad.
The outlook of LT26s-H Handsfree Feature Phone is illustrated in the following
figure.
Handsfree Key, Handsfree Volume Adjuster and Handsfree LED are available only on the handsfree versions.
Figure A-8
The data cabling of LT26s(-H) Feature Phones is made via the 6-pin RJ socket
(named LT/OP) on the MB26s motherboard. The signaling between the system and
consoles, feature phones is illustrated in the following table.
MB26s Motherboard LT26s(-H) Feature Phone
LT/OP Socket Pin No Signal RJ Socket Pin No
1 +8 VDC 6
2 Busy -
3 A (ext.11) 3 (ext. 11)
4 B (ext.11) 4 (ext. 11)
5 GND 2
6 Data 1

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The input of +8 VDC is regulated to +5 VDC by LT26s(-H) telephone card.
The dimensions of LT26s(-H) are 22 cm x 6.5 cm x 16 cm and the weight is 0.9 kg.
II.2. MINI PRINTER – KY16
MS26s system offers Call Record Listing facilities, by keeping the records of the
external calls and storing them in its non-volatile memory against any power failure.
You may obtain these records by way of some external devices.
One of these external devices is KY16 Mini Printer, which gives 16-column printout
using an Epson type print head.
The following figure illustrates the outlook of KY16 Mini Printer.
Figure A-9
The data cabling of KY16 is made via the 6-pin RJ socket (named LT/OP - the
same socket used by Karel LT26s(-H) Feature Phones) on the MB26s
motherboard. The signaling between the system and KY16 is illustrated in the
following table.
MB26s Motherboard KY16 Card
LT/OP Socket Pin No Signal Connector Pin No
1 +8 VDC -
2 Busy 2
3 A (ext.11) -
4 B (ext.11) -
5 GND 1
6 Data 3
Below is a sample printout of a call record obtained from KY16.

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Figure A-10
The dimensions of KY16 are 15 cm x 20.5 cm x 9 cm and the weight is 1.3 kg.
• NOTE
Only one of the two CRL accessories - namely KY16 Mini Printer and CM26s
CRL Interface - can be connected to the system at a time. The selection among
these devices is made by programming.
II.3. PC INTERFACE – CM26s
Using the serial communication port on MB26s motherboard, a PC can be
connected to the system. KAREL provides the CM26s Call Record Listing (CRL)
Interface for PC connection.
Call records, which are transferred to the PC via the serial communication port on
MB26s motherboard, are processed by the CM26s CRL software. A 3.5" diskette
with the necessary software, a 5 meter long cable for PC-Exchange connection and
a security plug are provided. The cable has a 25-pin D-type plug at the PC end and
a 4-pin RJ plug at the exchange end, to be attached to the 4-pin RJ socket (named
CM) on MB26s motherboard.
The software operates under Windows.
• PC REQUIREMENTS :
The PC to be used with MS26s should have the following specifications:
a) 640 KB RAM (at least)
b) Windows (not older than 3.1)
c) A harddisk
d) A serial port

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• SIGNALING AND COMMUNICATION PARAMETERS :
The signaling between the system and the PC is illustrated in the following
table. Since the PC-Exchange cable has a 25-pin plug at the PC end, it is
necessary to employ a 25-pin to 9-pin converter plug, in order to use the 9-pin
connector of the PC:
MB26s Motherboard PC
CM Socket Pin No Signal 25-pin Connector
Pin No 9-pin Connector Pin No
1 PC GND 7 5
2 TXD 3 2
3 RXD 2 3
4 Busy - -
The signal names above are given with respect to MS26s system and these
pin assignments are valid only for IBM compatible devices. If your device is not
IBM compatible, then you must provide the requested pin connections to
match the signaling parameters of the system.
The communication protocol for PC - Exchange connection is illustrated in the
following table:
For PC
Data Bits 8
Stop Bit 1
Parity None
Baud Rate 4800 Bps
The CM26s interface is able to set the communication protocol to the
appropriate values, automatically.
• DATA FORMAT OF CM26S :
Field No Information
1 #; indicates start of record
2 4 digit counter value
3 Space
4 Call type
5 Space
6 Date in the format dd/mm/yy
7 Space
8 Starting time of the call in the format hh:mm:ss
9 Space
10 Call duration in the format hh:mm:ss
11 Space
12 Starting extension number
13 Space
14 Ending extension number
15 Space

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16 Line number
17 Space
18 Common Pool information
19 Space
20 Number dialed
21 Space
22 Metering Pulse count
23 Space
24 Call cost
- Call type:
LDIS Long Distance
INTL International
Call type field and the preceding space are not sent to the PC for local calls.
- Common pool information field contains the character “O” for the calls made
from the common pool.
• NOTES:
Only one of the two CRL accessories - namely KY16 Mini Printer and CM26s
CRL Interface - can be connected to the system at a time. The selection
among these devices is made by programming.
II.4. DOORPHONE – DY01
MS26s system has a built-in circuitry, which can drive DY01 Doorphone. Any user
of the system can access the doorphone and make a conversation with the party
near the doorphone. The voice path is full duplex. The doorphone has a ring button
on it. This ring button can be utilized to ring an external ringer or the operator.
DY01 doorphone has a speech processor card inside the metal box.
The outlook and structure of DY01 is illustrated in the following figure.
Figure A-11
The pin-out of the 4-pin RJ socket (called DIA) used to connect DY01 to MB26s
motherboard is illustrated in the following table.