NEC DS1000 Operation instructions

Correspondence Course
Workbook
P/N 80000WB06 December 2001
(02.04.00)
This Correspondence Course consists of aWorkbook and
Answerbook.You should review the information in the
Correspondence CourseWorkbook, then complete the
Correspondence Course Answerbook.
Return the Correspondence Course Answerbook to
NEC’sTechnicalTraining department for grading. Upon
successful completion (a minimum final grade of 80% is
required), NEC will send you a signed course diploma
verifying your certification.

DS1000/2000 Correspondence Course
Introduction
NEC America DS1000/2000Workbook ◆ 3
DS1000/2000 Correspondence Course
Introduction
Welcome to the NEC America DS1000/2000 Correspondence Course . This
course has been developed to provide an alternate method of instruction for the
experienced installer. With this course, you’ll be able to work at your own pace,
start and stop at your own convenience, and most importantly, choose the method
of study that best suits your needs based on your telecommunications background
and present work load.
Included in this package is this Correspondence Course Workbook and a Corre-
spondence CourseAnswerbook. The DS1000/2000 manuals can be used for refer-
ence, but are not required for this course. The available manuals are the DS1000
and DS2000 Hardware and Software manuals, the Standard Practices manual, and
telephone user guides.You’ll use the information in the Correspondence Course
Workbook to become familiar with the system. Then, as you follow the Corre-
spondence Course Workbook, you’ll complete the Correspondence Course
Answerbook. Once you complete the Correspondence Course Answerbook,
return it to NEC for grading. Upon successful completion (a minimum final grade
of 80% is required), NEC will send you a signed course diploma verifying your
certification.
Return your Student Answerbook to:
NEC America
Attn: Technical Training
4 Forest Parkway
Shelton, CT 06484
It is recommended that you have some previous telephony knowledge in order to
understand some of the terms used within the course. It is also recommended, but
not required, that you have a DS1000/2000 system available to try some program-
ming. This will help you get accustomed to the system and the programming
steps.
How to Use the Manuals
The DS1000/2000 Correspondence Course Workbook will provide all of the tech-
nical information you’ll need to complete the certification test. For more indepth
information, you can refer to the system manuals. The following describes what
you can expect to find in each manual.

DS1000/2000 Correspondence Course
Introduction
4 ◆ DS1000/2000Workbook NEC America
DS1000 and DS2000 Hardware Manuals
These manuals cover the hardware components of the system, providing detailed
information for installation.You can also find system capacities, system and envi-
ronmental specifications, cabling requirements, FCC registration information, and
a parts list.
DS1000/2000 Software Manual
You can find detailed information on the system’s features in the DS1000/2000
Software Manual. The Feature section of the manual will provide details on:
➻ Feature Overview
➻
Conditions (operational limits)
➻
Default Setting
➻
Step-by-Step Programming
➻
Feature Operation
The manual also has a Program section which details:
➻
Program Description
➻
Conditions
➻
Step-by-Step Programming
Standard Practices Manual
In the Standard Practices Manual, you can find information on specifications and
guidelines necessary to fulfill:
➻
NEC’s Site and Installation Requirements
➻
Federal Communication Commission (FCC) Requirements
➻
Industry Science Canada (ISC) Requirements
➻
Telco Requirements
➻ Static Precautions
Telephone User Guides
The user guides cover:
➻
Step-by-step procedures for using the DS1000/2000 features
on each style of telephone - single line telephone and keyset.

DS1000/2000 Correspondence Course
Introduction
NEC America DS1000/2000Workbook ◆ 5
DS1000/2000 Basics
The DS1000 and DS2000 use 32-bit architecture to provide Digital Signal Pro-
cessor (DSP) technology, on-board flash memory and field software upgradeabil-
ity. The software can be easily updated on the DS1000 using a Flash Loader
Update Utility in combination with a CD containing the system software. The
DS2000 uses a PC card containing the system software to upgrade software.
The compact DS1000 starts with 3 lines, 8 stations and 4 analog ports. It expands
to 6 lines, 16 stations, and 8 analog ports just by plugging in a single expansion
board. The basic DS2000 is available with 4 slots and 48 ports. It is easily
expandable to 8 slots and 104 ports by upgrading to a 104 port cabinet.
Easily wall-mountable cabinets
have removable access covers
and simplified one-pair wiring
which means your initial installa-
tion and future add-on’s will be
quick and economical.
All the multibutton keyset tele-
phones offer 10 One-Touch
Keys, dual LEDS, and built-in
speakerphone.The 2-line display
phones feature 4 interactive Soft
Keys for intuitive, automated
feature operation. As available
options for the 34-button sets,
depending on your system, you may be able to have a Data Communications
Interface (DCI), analog module (to connect to modems, cordless telephones, and
fax machines), or 24-button or 110-button DSS consoles.
If Caller ID is provided by the telco, display keyset users can show an incoming
caller’s telephone number (called Directory Number or DN) and optional name.
Caller ID supports the telco’s Called Number Identification (CNI) and Called Num-
ber Delivery (CND) service, when available. These services provide the Caller ID
information (i.e., messages) between the first and second ring burst of an incoming
call. Caller ID provides the following features:

DS1000/2000 Correspondence Course
Introduction
6 ◆ DS1000/2000Workbook NEC America
● Single and Multiple Message Format Compatibility
● Caller ID on the SMDR Report
● Caller ID Integration with Voice Mail
● Second Call Caller ID
● Third Party Caller ID Check
● Caller ID Logging
Caller ID requires the installation of Caller ID daughter boards on your ATRU
PCBs. This feature requires that the PCBs be the “A” version (example: 80010A).
● 4ATRU PCB P/N 80010A uses Caller ID Daughter Board P/N 92012.
● 8ATRU PCB P/N 80011A uses Caller ID Daughter Board P/N 80013.

DS1000/2000 Correspondence Course
Station Equipment
NEC America DS1000/2000Workbook ◆ 7
Station Equipment
The following information will provide you with information on the station equip-
ment available for the DS1000/2000 Systems. Operational information for the tele-
phones can be found in the DS1000/2000 Software Manual and in the user guides
(Multibutton Feature Handbook, P/N 8000MFHxx, Multibutton Quick Reference
Guide, P/N 80000MBGxx, Soft Key Glossary, P/N 8000GLOxx, andAnalog Single
Line Quick Reference Guide, P/N 80000SLTxx). The DSS Consoles and Door Box
information can be found in the DS1000/2000 Software Manual.
34-Button Super DisplayTelephone (P/N 80673)
● 8 line x 20 character
display
● 24 function keys
(dual LED)
● 12 interactive keys
● 14 fixed keys
● Handsfree
Speakerphone
● Built-in desk stand
● Ring/Message
Lamp
U Slot
123
456
789
0
ABC DEF MW ICM
FLASH DND
DIAL MIC
LND SPKR
CONF HOLD
GHI JKL MNO
PQRS TUV
OPER
VOL
WXYZ
80000 - 71
CHECK CLEAR
LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6
LINE 7 LINE 8
Keys 13-24 are undefined
for non-attendants in DS2000.
Keys 7-24 are undefined for
non-attendants in DS1000.
LINE 9 LINE 10 LINE 11 LINE 12
For Attendants:
Key 11=Night Key
Key 24=Operator Call Key

DS1000/2000 Correspondence Course
Station Equipment
8 ◆ DS1000/2000Workbook NEC America
34-Button DisplayTelephone (P/N 80663)
● 2 line x 20 character
display
● 24 function keys
(dual LED)
● 10 Personal Speed
Dial bin keys that
can store 20 Speed
Dial bin numbers
● 14 fixed keys
● 4 interactive soft
keys
● Handsfree
Speakerphone
● Built-in desk stand
● Ring/Message
Lamp
22-Button DisplayTelephone (P/N 80573)
●
2 line x 20 character
display
●
12 function keys
(dual LED)
●
10 Personal Speed
Dial bin keys that
can store 20 Speed
Dial bin numbers
●
14 fixed keys
●
4 interactive soft
keys
●
Handsfree
Speakerphone
●
Built-in desk stand
●
Ring/Message
Lamp
U Slot
1 2 3
4 5 6
7 8 9
0
ABC DEF MW ICM
FLASH DND
DIAL MIC
LND SPK
CONF HOLD
GHI JKL MNOMNO
PQRS TUV
OPER
VOL
WXYZ
CLEAR
CHECK
80000 - 72
LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6
LINE 7 LINE 8
BIN 1 BIN 2 BIN 3 BIN 4 BIN 5
BIN 6 BIN 7 BIN 8 BIN 9 BIN 10
Keys 13-24 are undefined
for non-attendants in DS2000.
Keys 7-24 are undefined for
non-attendants in DS1000.
LINE 9 LINE 10 LINE 11 LINE 12
For Attendants:
Key 11=Night Key
Key 24=Operator Call Key
U Slot
1 2 3
4 5 6
7 8 9
0
ABC DEF MW ICM
FLASH DND
DIAL MIC
LND SPK
CONF HOLD
GHI JKL MNOMNO
PQRS TUV
OPER
VOL
WXYZ
CLEAR
CHECK
80000 -70
LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6
LINE 7 LINE 8 LINE 9 LINE 10 LINE 11 LINE 12
BIN 1 BIN 2 BIN 3 BIN 4 BIN 5
BIN 6 BIN 7 BIN 8 BIN 9 BIN 10
For Attendants:
Key 11=Night Key
Key 12=Operator Call Key
In DS1000:
Keys 7-12 are
undefined.

DS1000/2000 Correspondence Course
Station Equipment
NEC America DS1000/2000Workbook ◆ 9
22-Button StandardTelephone (P/N 80570)
● 12 function keys
(dual LED)
● 10 Personal Speed
Dial bin keys that
can store 20 Speed
Dial bin numbers
● 14 fixed keys
● Handsfree
Speakerphone
● Built-in desk stand
● Ring/Message
Lamp
ST4 Single LineTelephone (P/N 85430x) (available in U.S. only) /
2500Telephones
●
Ring/Message
Lamp
●
Flash and Last
Number Redial keys
●
Ring volume
control
●
Dial mode (DTMF
or DP)
●
2500 set equivalent
U Slot
1 2 3
4 5 6
7 8 9
0
ABC DEF MW ICM
FLASH DND
DIAL MIC
LND SPKR
CONF HOLD
GHI JKL MNOMNO
PQRS TUV
OPER
VOL
WXYZ
CLEAR
CHECK
80000 - 63A
LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6
LINE 7 LINE 8 LINE 9 LINE 10 LINE 11 LINE 12
For Attendants:
Key 11=Night Key
Key 12=Operator Call Key
In DS1000:
Keys 7-12 are
undefined.

DS1000/2000 Correspondence Course
Station Equipment
10 ◆ DS1000/2000Workbook NEC America
24-Button DSS Console (P/N 80556)
●Plugs into 34-Button
Display or Super Display
Telephone
●Does not require a
station port
●Can be used for DSS/BLF
or feature access
●Up to 4 unique DSS
configurations per system
●4 DSS consoles allowed
per system (as long as the
system load factor is not
exceeded)
110-Button DSS Console (P/N 80555)
●Plugs into
34-Button Display
or Super Display
Telephone
●Does not require a
station port
●Can be used for
DSS/BLF or
feature access
●Up to 4 unique DSS
configurations per
system
●4 DSS consoles
allowed per system
(as long as the sys-
tem load factor is
not exceeded)
80000 - 25
300 312
301 313
302 314
303 315
304 316
305 317
306 318
307 319
308 320
309 321
310 322
311 323
U Slot
80000 - 66
300 301 302 303 304 305 306 307 308 309
310 311 312 313 314 315 316 317 318 319
320 321 322 323 324 325 326 327 328 329
330 331 332 333 334 335 336 337 338 339
350 351 352 353 354 355 356 357 358 359
360 361 362 363 364 365 366 367 368 369
370 371 372 373 374 375 376 377 378 379
PAGE 1 PAGE 2 PAGE 3 PAGE
ALL
PARK 0 PARK 1 PARK 2 PARK 3 PARK 4 PARK 5 PARK 6 PARK 7 PARK 8 NIGHT
These keys are
undefined
340 341 342 343 344 345 346 347 348 349

DS1000/2000 Correspondence Course
Station Equipment
NEC America DS1000/2000Workbook ◆11
Door Box, Analog (P/N 92245)
●On the DS1000 system only,
the maximum per expanded
system is two. When not
using the expansion card,
only one is permitted.
●Connects to modular jacks in
the cabinet.
●A weather-tight unit, with an
operating temperature range
of -20 to 60 degrees C (4 to
140 degrees F) and a relative
humidity of 10-95%, non-
condensing.
Door Box, Digital (P/N 80560)
●Maximum per system is lim-
ited by the system load factor
●Uses one digital station port,
●A weather-tight unit, with an
operating temperature range
of 0 to 45 degrees C (32 to
113 degrees F) and a relative
humidity of 10-95%, non-
condensing. It is not intended
for outdoor installation.

DS1000/2000 Correspondence Course
Station Equipment
12 ◆DS1000/2000Workbook NEC America
2-OPX Module (P/N 92177A)
●One 2-OPX Module can be
installed per digital station
port (The system load factor
limits the total number of 2-
OPX Modules that you can
install.)
●Provides two 2500-type ana-
log circuits for connection to
on-premise 2500-type single
line devices (i.e., telephones,
fax machines, modem, etc.),
voice mail, and to telco OL13B/C OPX circuits.
❏ Complete Questions 1-5
in the Answerbook

DS1000/2000 Correspondence Course
UsingYourTelephone
NEC America DS1000/2000Workbook ◆13
UsingYour Telephone
Telephone Buttons andTheir Operation
1 2 3 4 5 6 7 8 9
0
ABC DEF MW ICM
FLASH DND
DIAL MIC
LND SPK
CONF HOLD
GHI JKL MNOMNO
PQRS TUV
OPER
VOL
WXYZ
CLEAR
CHECK
80000 -70
LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6 LINE 7 LINE 8 LINE 9 LINE 10 LINE 11 LINE 12
BIN 1 BIN 2 BIN 3 BIN 4 BIN 5 BIN 6 BIN 7 BIN 8 BIN 9 BIN 10
The Alphanumeric Display helps you use features and tells you about your calls. It may also show your caller’s name and number.
The Ring/Message Lamp
:
●
Flashes slow (green) while a call rings your phone.
●
Flashes fast (red) if you have new Voice Mail messages or unanswered Message Waiting.
If you’re on a Handsfree call (see Handsfree Options below), lift the handset for privacy. The Volume Controls are for speaker and handset. They also control the volume for ringing calls and pages. While on-hook, these keys are for Contrast Control (not
available on Super Display).
The Microphone picks up your voice for Handsfree calls. Press MIC to turn off the microphone. Press SPK for Handsfree calls, or use the
handset instead. See Handsfree Options below. While on a handset call, press SPK twice (do
not hang up) for Group Listen. Press ICM to place an Intercom call. Press Bin Key 1-10 for Personal Speed Dial
bins 701-710. Press DIAL + Bin Key 1-10 for
Personal Speed Dial bins 711-720.
Due to the flexibility built into the system, your dialing codes may differ from
those in this guide. Check with your communications manager and make a note of any differences. These are
and/or keys.
Your key assignments may be different than shown —ask your communications manager. If you are an attendant . . . ●
Key 11 is a Night Key to put your system in the night mode.
●
Key 12 (on 22-button telephone) or key 24 (on 34-button telephone) is an Operator Call Key for your incoming Intercom calls.
MW flashes when you have Messages Waiting. If you have Voice Mail, it flashes when you have Voice Mail messages left in your mailbox. Press a line key then LND to automatically redial the last outside number you called. While on a call, press CONF to set up a
Conference. While on a call, press HOLD to put the call on Hold. While idle, press HOLD to turn Background Music on and off (if installed). Enable Do Not Disturb to block your calls
when you don’t want to be interrupted.
Soft Keys simplify using your phone. To guide you through your features, the Soft Key functions automatically change to help you handle calls. See the Soft Key Glossary for more.
Handsfree Options
•
Handsfree lets you place and answer calls by pressing instead of using the handset.
•
With Automatic Handsfree, you can press a line key without lifting the handset. Normally, you have Automatic Handsfree.
•
Use Handsfree Answerback to answer a voice-announced Intercom call by speaking toward your phone —without lifting the handset.
22-Button Display Telephone Shown

DS1000/2000 Correspondence Course
UsingYourTelephone
14 ◆DS1000/2000Workbook NEC America
How each phone operates depends on how you program it. The line and function
keys simplify placing calls, answering calls, and using certain features.You can
customize the function of any keyset’s Programmable Function keys from the
system program (Program 1701). Depending on the type of phone at each exten-
sion, you may need to set the extension’s circuit type in Program 1801 in order
for all the Programmable Function keys to work.
The following features can be programed as a function key.
● Call Coverage ● Loop Key, Fixed ● ReverseVoice Over
● Call Timer ● Loop Key, Switched ● Speed Dial, Personal
● Group Pickup ● Message Center ● Speed Dial, System
● Hotline ● Night Key ● Split Key
● Intercom Directory ● Page Zones ● Voice Mail Record Key
Dialing
● Line Key ● Park Orbit
If you unplug a 34-button telephone and replace it with a 22-button telephone,
Programmable Function Keys 13-24 are inaccessible. However, the system still
retains the programming for those keys. So you should make sure to remove any
Programmable Function Key programming for keys 13-24.
When you initially start the system, the keysets are defined as follows:
●DS1000 - Keys 1-6 are line keys for trunks 1-6
DS2000 - Keys 1-12 are line keys for trunks 1-12
●DS1000 - Keys 7-24 are undefined
DS2000 - Keys 13-24 are undefined
●Key 11 is a Night Key (for attendants only - extension 300 by default)
●Key 12 (on 22-button) or Key 24 (on 34-button) is an Operator Key
(for attendants only - extension 300 by default)

DS1000/2000 Correspondence Course
UsingYourTelephone
NEC America DS1000/2000Workbook ◆15
You can refer to the DS1000/2000 Software Manual for more information on
what each program does as well as information on programming the keys.
Depending on your software version (2.00.00 or higher required) and the access
level assigned to the extension (Program 1801), an end user can also customize
their phone with the User Programmable Features.
Note: The previous Speed Dial programming procedures (##2 for System Speed
Dial and ##7 for Personal Speed Dial) are no longer available.You must use the
User Programmable Feature steps for Speed Dial instead.
User Programmable Features
Feature Mnemonic Operation Access Level
The shaded rows below show the Fixed Slot software User Programmable Features.
Call Coverage #RC #+ R C + Press Call Coverage key
repeatedly to select ringing mode N/A
DSS #BLF See DS1000: Installing a DSS Con-
sole (page 65) or DS2000: Installing
a DSS Console (page 110) before
using this option.
#BLF + Press DSS key + HOLD + Enter
extension +VOL Up + Program another
key or SPK to exit.
1-5
Group Call Pickup #RG #+ R G + Press Group Call Pickup key
repeatedly to select ringing mode N/A
Headset #HS #HS +Yto enable or Nto disable + SPK
to exit 3-5
Hotline #HL #HL + Press flashing Hotline key + Enter
extension for new Hotline partner +
HOLD + Program another Hotline key or
SPK to exit.
3-5
Line Keys #RL #+ R L + Press Line Key repeatedly to
select ringing mode N/A
Off Hook Signaling and
Voice Over #OHS #OHS + Select mode (C=Outside line, D=Hotline, I=ICM) + Select option (see
below) + SPK to exit.
Outside line options: C=Camp On tone,
O=Off Hook Ringing, 0= None
Intercom options: C=Camp On,V=Voice
Over, 0= None
Hotline Options: C=Camp On, 0= None
3-5
Paging (Incoming) #VP #VP +Yto enable or Nto disable + SPK
to exit. 3-5
Prime Line Assignment #PLA #PLA + Press one of your flashing pro-
grammable keys or ICM + SPK to exit. 3-5

DS1000/2000 Correspondence Course
UsingYourTelephone
16 ◆DS1000/2000Workbook NEC America
Programmable Function
Key Assignments #KP #KP + Press key you want to program + HOLD + ICM + PressVOL Up or VOL
Down to select key option + HOLD +
(Enter any additional data if required +
HOLD) + Press VOL Up orVOL Down
to select another key to program, or
CONF + SPK to exit.
3-5
Programmable Function
Key Ringing #RAC Call Coverage Keys: #RAC + Call Cover- age Key repeatedly to select ringing mode
+ SPK to exit.
Call Coverage Keys flash as follows:
Lamp only=On red, Immediate ring=On
green, Delay ring=Fast flash green.
2-5
#RAL Outside Line Keys: #RAL + Line Key
repeatedly to select ringing mode + SPK
to exit.
Line keys flash as follows: Lamp
only=On red, Immediate ring=On green,
Delay ring=Fast flash green, Night
ring=Slow flash green.
#RAP Group Call Pickup Keys: #RAP + Group
Call Pickup Key repeatedly to select ring-
ing mode + SPK to exit.
Group Call Pickup Keys flash as follows:
Lamp only=On red, Immediate ring=On
green, Delay ring=Fast flash green.
Ringing Line Preference #RLP #RLP +Yto enable or Nto disable + SPK
to exit. 2-5
Speed Dial, Personal ICM + ## + 200-299 N/A
Speed Dial, Personal #SP #SP + Press bin key (for bins 701-710) or
DIAL then bin key (for bins 711-720) +
HOLD + Enter outside line (e.g., 1), line
group (90-98), or ICM for Intercom fea-
ture + HOLD + Number to store + HOLD
+ Name + HOLD + Press another bin key
or SPK to exit.
1-5
Speed Dial, System ICM + ## + 701-720 N/A
Speed Dial, System #SP #SP + Dial System Speed Dial bin num-
ber (e.g., 200) + HOLD + Enter outside
line (e.g., 1), line group (90-98), or ICM
for Intercom feature + HOLD + Number
to store + HOLD + Name + HOLD +
Press another bin key or SPK to exit.
4 and 5
System Program Access #*#* #*#* + Enter programming password 3-5
User Programmable Features
Feature Mnemonic Operation Access Level
The shaded rows below show the Fixed Slot software User Programmable Features.

DS1000/2000 Correspondence Course
UsingYourTelephone
NEC America DS1000/2000Workbook ◆17
Time and Date #TD #TD + Enter time in 24-hour clock using
hours (2 digits), minutes (2 digits) and
seconds (2 digits) + HOLD + Enter date
using month (2 digits), day (2 digits) and
year (4 digits) + HOLD + SPK to exit.
4 and 5
Intercom Voice Announce
(foryourincomingIntercom
calls)
#IV or #IR #+ I V to enable voice-announce for your
incoming Intercom calls
#+ I R to enable ringing for your incom-
ing Intercom calls
N/A
Intercom Voice Announce
(for incoming Intercom calls)
#VA #VA +Vfor voice announce or Rfor ring
+ SPK to exit. 3-5
User Programmable Features
Feature Mnemonic Operation Access Level
The shaded rows below show the Fixed Slot software User Programmable Features.

DS1000/2000 Correspondence Course
UsingYourTelephone
18 ◆DS1000/2000Workbook NEC America
- For Your Notes -

DS1000/2000 Correspondence Course
System Configuration
NEC America DS1000/2000Workbook ◆19
System Configuration
System Configuration
The total number of components you can install and connect to your system
depends on power supply capacity and the System Load Factor. Use the following
Configuration Guidelines and System Load Factor table when configuring your
system. With the DS2000, depending upon your hardware and system software,
there may be limitations on the number of PCBs allowed in the system or the slot
in which they can be installed.
You may find that the default setup for your system is adequate for your needs.
Also keep in mind that with the DS2000, only two 16DSTU’s can be supported
per power supply, even if the system load factors are not exceeded.
DS1000 System Configurations
Using the factory installed default configuration, your DS1000 system provides:
Base Expansion Total
Trunks 3 3 6
Digital Extensions 8 8 16
Analog Extensions 4 4 8
Analog Door Boxes 1 1 2
Relays 1 1 2
Page Output 1 - 1
Music Input 1 - 1
System Load Factor Calculations
The combination of extensions, 2-OPX Modules, Digital Door Boxes and DSS
Consoles you can connect to your system may be limited by the System Load
Factor. Use the DS1000 System Load Factor Calculations chart which follows to
verify your system’s configuration.

DS1000/2000 Correspondence Course
System Configuration
20 ◆DS1000/2000Workbook NEC America
To calculate the DS1000 load factor:
1. Indicate the quantity for each item installed in the Qty column.
2. For each item, multiply the Qty times and Load Factor and enter the value in
the Total Load column.
3. Add all the values in the Total Load column and enter the value in row 1.
4. Compare the entry in row 2 to your entry in row 1. Row 1 must always be
equal to or less than the entry in row 2.
Do not operate your system if the System Load Factor total (Item 1) exceeds the
allowable load of 30 (Item 2).
DS1000 System Load Factor Calculations
Description Load Factor Qty Total Load
Digital Telephone and Digital Door Box 1
Analog Telephone 1
Analog Door Box 0
24-Button DSS Console 1
110-Button DSS Console 2
Total DSS Consoles installed cannot exceed 4
2-OPX Module 3
Item 1: Total load for this configuration
Item 2: Maximum allowable load 30