Samsung Dcs 50si General Description Manual

							
   
						

							

Digital Communications System
General Description
Every effort has been made to eliminate errors and ambiguities in the information
contained in this guide. Any questions concerning information presented here should
be directed to SAMSUNG TELECOMMUNICATIONS AMERICA, INC., 2700 NW
87th Avenue, Miami, FL 33172, telephone (305) 592-2900. SAMSUNG
TELECOMMUNICATIONS AMERICA, INC. disclaims all liabilities for damages
arising from the erroneous interpretation or use of information presented in this
guide. 
						

							

telecommunications
Publication Information
SAMSUNG TELECOMMUNICATIONS AMERICA, INC.  reserves the right without
prior notice to revise information in this publication for any reason.
SAMSUNG TELECOMMUNICATIONS AMERICA, INC.  also reserves the right
without prior notice to make changes in design or components of equipment as
engineering and manufacturing may warrant.
Copyright 1998
Samsung Telecommunications America, Inc.
All rights reserved. No part of this manual may be reproduced in any form or by any
means—graphic, electronic or mechanical, including recording, taping, photocopying
or information retrieval systems—without express written permission of the publisher
of this material.
PRINTED IN USA               12/98 
						

							
TABLE OF CONTENTS
PART DESCRIPTION PAGE
1SYSTEM OVERVIEW
1.1SIZE AND CONFIGURATION.........................................................1.2
1.2TECHNOLOGY...............................................................................1.4
1.3PROGRAMMING............................................................................1.5
2HARDWARE DESCRIPTIONS
2.1KEY SERVICE UNIT.......................................................................2.1
2.2EXPANSION CABINET...................................................................2.1
2.3SMEM2 CARD................................................................................2.1
2.4INTERFACE CARDS.......................................................................2.2
2.5STATION EQUIPMENT...................................................................2.5
3SPECIFICATIONS
3.1ELECTRICAL SPECIFICATIONS...................................................3.1
3.2DIMENSIONS AND WEIGHTS.......................................................3.1
3.3ENVIRONMENTAL LIMITS.............................................................3.2
3.4CABLE REQUIREMENTS...............................................................3.2
3.5SYSTEM TONES............................................................................3.2
3.6KEYSET LED INDICATIONS..........................................................3.4
3.7ARESERVE POWER DURATION ESTIMATES................................3.4
3.7BRESERVE POWER DURATION ESTIMATES
– WITH/WITHOUT CADENCE.......................................................3.5
4FEATURES
4.1SYSTEM FEATURES...................................................................4.1.1
4.2STATION FEATURES..................................................................4.2.1
4.3DISPLAY FEATURES..................................................................4.3.1
4.4SAMPLE SMDR PRINTOUT........................................................4.4.1
4.5SAMPLE SMDR PRINTOUT WITH CALLER ID..........................4.5.1
4.6SAMPLE UCD REPORT..............................................................4.6.1
4.7CALL STATISTICS.......................................................................4.7.1
4.8AGENT STATISTICS....................................................................4.8.1
5GENERAL USER INFORMATION
5.1RADIO FREQUENCY INTERFERENCE........................................5.1
5.2FCC REQUIREMENTS...................................................................5.1
5.3TELEPHONE COMPANY INTERFACES........................................5.2
5.4SAFETY TESTS..............................................................................5.3
5.5MUSIC ON HOLD WARNING.........................................................5.3
5.6EQUAL ACCESS REQUIREMENTS..............................................5.3 
						

							1.1
DCS 50si GENERAL SYSTEM DIAGRAM

     
						

							

1.2
PART 1. SYSTEM OVERVIEW
1.1 SIZE AND CONFIGURATION
The DCS 50si is a digital ISDN compatible telephone system designed for \
small busi- 
nesses. It can operate with the functionality of a square key system, PABX or a combina-
tion of both (hybrid). The DCS 50si employes the very latest DSP (Dig\
ital Signal Proces-
sor) digital technology. 
The DCS 50si offers a variety of interface cards that allow connection to the public te\
le- 
phone network or to private networks. These are generally referred to as\
 trunk cards. Two
types of telephones can be connected to the system. Proprietary digital \
phones called
“keysets” connect to digital line interface cards (DLI). Standar\
d telephones generally called
“single line sets” connect to single line interface cards (SLI).\
 In addition, DLI station ports
are used to connect peripheral devices such as door phones and add-on mo\
dules. Mis-
cellaneous circuits are provided to allow such optional features as exte\
rnal paging, music
on hold, background music, common audible devices, alarms and emergency \
power fail-
ure telephones. 
All DCS keysets utilize a single PCB with surface-mounted components ass\
uring the highest 
product quality and long life. Samsung’s customary large, easy-to-read displays and LEDs
in the button design make them much easier to use. In many instances, so\
phisticated
features are made simple through the use of friendly display prompts or \
push-on/push-off
feature keys. 
Expanding the DCS 50si system is both economical and easy. Begin with the basic Key 
Service Unit and then add an expansion cabinet as your business grows (
See Figure 1–
1). The KSU has 8 keyset ports and 3 universal card slots that can be us\
ed for stations,
trunks or 2x4 combination cards. In addition, the KSU has dedicated slot\
s for a 2SLI card 
and a miscellaneous function card. The expansion cabinet adds a further \
3 universal slots
and a dedicated slot for a CADENCE CVM8A card. The systems low density c\
ard design
allows greater flexibility when configuring a system for the right combi\
nation of lines and
stations. A removable memory card (SMEM2 card) makes it convenient to \
upgrade to
future feature packages as well as providing quick and easy servicing. 
The maximum
quantities of the various station and trunk types can be seen in the tab\
le 1–1. 
						

							

1.3
FIGURE 1–1
KEY SERVICE UNIT
AND EXPANSION CABINET
KEY SERVICE UNITEXPANSION
CABINET
Power Supply
2SLISLOT
MEM SLOT
MISC SLOT
PLL
DAUGHTER
BOARD
8DLI
Ports
UNIVERSAL SLOT 1
UNIVERSAL SLOT 2
UNIVERSAL SLOT 3
UNIVERSAL SLOT 4
UNIVERSAL SLOT 5
UNIVERSAL SLOT 6
CADENCE SLOT 
						

							

CONFIGURATION NOTES
1. A maximum of 40 stations can be installed on the system.
2. Only one 2 SLI card can be installed in the system.
3. Only one SMISC card can be installed in the system.
4. Up to six expansion cards can be installed in the system.
5. Only one CADENCE card can be installed in the system.
6. Installing CADENCE reduces the maximum number of stations to 32.
7. Only eight KDbs can be installed in the system and they must be installed on keysets
connected to the (8) eight 2B+D ports on the KSU motherboard.
1.2 TECHNOLOGY
System switching is accomplished by means of a custom IC “engine” that provides 128
switchable digital channels. Each of the 128 digital channels is automatically assigned to
carry voice or data as required by system operation in a PCM format. In addition to the 128
channels mentioned above , the system also utilizes Digital Signal Processors or DSPs.
Each DSP may be configured by the switching control program as a DTMF receiver or a
C.O. tone detector on a per-call basis. The engine chip contains four DSPs and four more
are added when an SMISC card is installed. This means that the system contains a total
of eight DSP channels when fully expanded. The DSP channels are fully shared through-
out the system as a common resource.
MEMORY
The system operates using stored program control. This program is stored in four EPROM
chips (2048 Kbytes of memory). All specific customer data is stored in non-volatile ran-
1.4

           	  
       
  

    
    
 
 	 
  
     
   
 	 
  
  
   
  
    
             	    
  
          
    
   
    
    
    
 
 	  
  
  
  
 	   
   	  
 
 	     
      
           
  
 	 	 
 
     
  	      

     
  	 
  
 
TABLE 1–1 
						

							

dom access memory (NV-RAM) located on the removable SMEM2 card. It is protected by
a super capacitor providing seven days of memory protection in the event of loss of AC
power to the system.
MICROPROCESSORS
The DCS 50si uses distributed processing. The system’s primary processor is a 16 bit
Motorola® MC68000 operating at a clock speed of 16MHz. The secondary level of pro-
cessing is done in the keysets.
1.3 PROGRAMMING
The DCS 50si comes with default data. This data provides for operation within seconds
after applying power. All trunks and stations are assigned according to the default num-
bering plan. This numbering plan is flexible and may be changed if so desired. The tech-
nician customizes this default data to meet the end user’s requirements.
The system can be programmed from any display keyset without interrupting normal sys-
tem operation. There are three levels of programming: TECHNICAL, CUSTOMER and
STATION. The technician level has access to all programs and can allow the customer
access to system programs as needed. Technician and customer access are controlled
by different security passcodes.
The DCS 50si also allows the use of a proprietary computer program called PCMMC. This
permits a technician to program the system using a personal computer. PCMMC can be
used on-site to modify the customer database or to download (save) the entire customer
database to a file. This file can then be saved as a backup and uploaded when required to
restore the database.
Through the use of modems, PCMMC can access a DCS 50si system remotely (off-site)
to make database changes or perform uploads or downloads of the customer database
as if the technician were on-site.
1.5 
						

							

2.1
PART 2. HARDWARE DESCRIPTIONS
2.1 KEY SERVICE UNIT
The DCS 50si (see Figure 2–1) is a metal cabinet containing the following:

A power supply (120 VAC) with battery backup (48VDC) connection

Processing, switching and the system operating program

Eight 2B + D digital keyset interfaces

One MOH/BGM input source (switch selectable between internal chimes and external
input)

One page output
2.2 EXPANSION CABINET
The optional expansion cabinet (see Figure 2–2) consists of a metal case containing a
backplane PCB with connectors for three expansion cards and a fourth connector for a
CADENCE (VM8A) card. The expansion cabinet is installed to the right of the basic KSU
and connects to the KSU motherboard via a ribbon cable and two pairs of wires.
2.3 SMEM2 CARD
To operate, the KSU must be equipped with an SMEM2 card to hold the system software
and customer database (see Figure 2–3). This software is stored in four EPROM chips
(2048 Kbytes of memory). All specific customer data is stored in non-volatile random
FIGURE 2–1FIGURE 2–2