The products described in this book are licensed products of NCR Corporation.
NCR is a registered trademark of NCR Corporation.
Pentium is a registered trademark of Intel Corporation.
It is the policy of NCR Corporation (NCR) to improve products as new technology, components, software,
and firmware become available. NCR, therefore, reserves the right to change specifications without prior
notice.
All features, functions, and operations described herein may not be marketed by NCR in all parts of the
world. In some instances, photographs are of equipment prototypes. Therefore, before using this document,
consult with your NCR representative or NCR office for information that is applicable and current.
To maintain the quality of our publications, we need your comments on the accuracy, clarity, organization,
and value of this book.
Address correspondence to:
Manager, Information Products
NCR Corporation
2651 Satellite Blvd.
Duluth, GA 30096
This book is written for hardware installer/service personnel, system
integrators, and field engineers.
Notice: This document is NCR proprietary information and is not to
be disclosed or reproduced without consent.
Safety Warnings
This equipment is intended for use with an IT power system with a line-toline voltage of 240 V or less.
Fuse Replacement
Caution: For continued protection against risk of fire, replace only
with the same type and ratings of fuse.
Attention: Pour prévenir et vous protéger contre un risque de feu,
remplacer la fusible avec une autre fusible de même type, seulement.
Power Supply Cord Used as Disconnect Means
Caution: 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.
Attention: Le cordon d'alimentation est utilisé comme interrupteur
général. La prise de courant doit être située ou installée å proximité du
matériel et être facile d'accés.
Warning: DO NOT connect or disconnect the transact ion printe r
while the terminal is powered on. This can result in system or printer
damage.
Page 4
iiSite Preparation
Lithium Battery Warning
Caution: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type as recommended by the
manufacturer. Discard used batteries according to the manufacturer's
instructions.
Attention: Il y a danger d'explosion s'il y a remplacement incorrect de
la batterie. Remplacer uniquement avec une batterie du même type ou
d'un type recommandé par le constructeur. Mettre au rébut les
batteries usagées conformément aux instructions du fabricant.
Peripheral Usage
This terminal should only be used with peripheral devices that are
certified by the appropriate safety agency for the country of installation
(UL, CSA, TUV, VDE) or those which are recommended by NCR
Corporation.
Environmental Consciousness
NCR is demonstrating its concern for the environment by designing an
intelligent power management system into this terminal that operates
efficiently whether the system is in a stand-alone or network
environment.
About this Book
This book provides site preparation information for terminal
components. Peripheral component and AC wiring site preparation
information is NOT provided in this book. The associated reference
documents are listed in the “Related Site Preparation Data” section.
Page 5
Site Preparationiii
This book contains the information necessary for the preparation of a
site that conforms to NCR specifications. It is very important that the
site complies with the requirements specified in the document because,
once the equipment has been installed, deficiencies in site preparation
or the problems caused by these deficiencies are much more difficult to
detect and correct. Further, failure to comply with these requirements
or to take proper steps to protect equipment against risks identified in
this document may cause serious damage to the equipment and to the
customer’s business.
In addition to the need to comply with the requirements specified,
electrical wiring and mechanical systems must also comply with all
relevant codes, laws, and regulations.
It is important that a customer or his agent who is fully conversant
with the special requirements of electronic equipment prepare the site.
The responsibility of ensuring that the site is prepared in compliance
with this document remains with the customer.
For information and guidance purposes only, a list is provided, in
general terms, of those matters for which the customer is responsible.
This list is not intended to be comprehensive, and in no way modifies,
alters, or limits the responsibility of the customer for all aspects of
adequate site preparation.
NCR staff will be available to answer questions relating to the contents
of this document except where:
• A customer has been notified that a full or partial consultant service
is available and/or that NCR will be willing to undertake a
preliminary or final site survey and
• The customer shall have entered into a formal contract with NCR
for provision of the same.
No comment, suggestion, or advice offered or not offered about
preparation of the site, nor any inspection of the site, whether before of
after preparation, is to be taken as approval of the location of the site
and equipment or its preparation. NCR will not be liable in respect to
any comment, suggestion, or advice given by its staff or in respect to
any failure to give advice.
Page 6
ivSite Preparation
Finally, only the customer can know the full extent of damage that may
be caused to his business by reason of failure of the equipment which is
to be installed. For this reason, it is the customer’s responsibility to
ascertain the extent of any possible damage to his existing or planned
business, and to effect full insurance in for all eventualities.
References
• NCR 7455 Retail Terminal User’s Guide
(B005-0000-1285)
• NCR 7455 Retail Terminal Service Guide
(B005-0000-1339)
• NCR FitClient User's Guide
(B005-0000-1235)
• NCR 7455 Retail Terminal Parts Identification Manual
Data Line Transient Protection.........................................2
Page 10
viiiSite Preparation
Revision Record
IssueDateRemarks
AApril 01First issue
Page 11
Site Preparationix
Radio Frequency Interference Statements
Federal Communications Commission (FCC)
Information to User
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of 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 instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause interference in which case the user
will be required to correct the interference at his own expense.
NCR is not responsible for any radio or television interference caused by unauthorized
modification of this equipment or the substitution or attachment of connecting cables
and equipment other than those specified by NCR. The correction of interference
caused by such unauthorized modification, substitution or attachment will be the
responsibility of the user. The user is cautioned that changes or modifications not
expressly approved by NCR may void the user’s authority to operate the equipment.
Canadian Department of Communications
This digital apparatus does not exceed the Class A limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les
limites applicables aux appareils numériques de la classe A prescrites dans le
Règlement sur le brouillage radioélectriques édicté par le ministrère des
Communications du Canada.
Voluntary Control Council for Interference (VCCI)
Page 12
xSite Preparation
7
Declaration of Conformity
Manufacturer’s Name
Manufacturer’s Address
NCR Corporation
NCR Corporation
Retail Solutions Division
2651 Satellite Boulevard
Duluth, GA 30096-5810
Type of Equipment
Model Number
Electrical Ratings (Input)
Information Technology Equipment
Class 7455
100-240 V, 2.0 A, 50-60 Hz
NCR Corporation, 1700 South Patterson Boulevard, Dayton, OH 45459,
USA, declares that the equipment specified above conforms to the
referenced EU Directives and Harmonized Standards.
EU DirectiveHarmonized Standard(s)
89/336/EEC (EMC)EN 55022: 1987 (CISPR 22)
EN 50082-1, Part 1: 1992
IEC 801-2: 1984
IEC 801-3: 1984
IEC 801-4: 1988
NCR Corporation
Retail Solutions Division— Atlanta
2651 Satellite Boulevard
Duluth, GA 30096-5810
European Contact:
International IP Counsel
206 Marylebone Road
London, NW1 6LY, England
Page 13
Site Preparation
Introduction
7
8
9
4
5
6
1
2
3
0
18427
This document provides the information necessary to prepare a site to
NCR specifications prior to installing a terminal. The site must be
properly prepared before the retail terminal is installed because site
preparation deficiencies may be difficult to detect and correct after
installation.
The terminal consists of separate pieces that may be combined in a
variety of configurations. Certain combinations are mutually exclusive.
You must determine the equipment that will actually be installed
before proceeding with the site preparation.
Page 14
2Site Preparation
Interpreting the Model Number
NCR Model 74xx 22
XX
80
01
Language
01 = International English
Power Required
80 = 110 -240 VAC 50/60 Hz
Operating System
00 = No OS
01 = Windows
03 = MS/DOS
Processor
22 = Base Unit with 12.1" LCD
(Release 1)
18043
Page 15
Site Preparation3
Related Site Preparation Data
AC Power and Communications Wiring
TitleOrder Number
NCR Ethernet Communications Wiring GuideBST0-2118-82
NCR Terminal AC Power Wiring GuidelinesBST0-2115-53
Information Products are available through several different channels.
You need an order form if you are using fax, e-mail, or mail order.
Order forms are available to NCR personnel through QuickLook. In
QuickLook, click on Forms & Templates, then select Information
915 High Road
North Finchley
London N12 ONH
United Kingdom
Page 17
Site Preparation5
Customer Responsibilities
Before the system can be installed, the customer must do or provide
the following:
• When required by NCR, provide the NCR Customer Services
representative with appropriate drawings that indicate:
− Location of the equipment
− Site wiring (power and communications, paths and lengths)
− Location of other equipment that may generate electrical noise,
electromagnetic interference, or heat.
• Make building alterations necessary to meet wiring and other site
requirements
• Provide and install all communications cables, wall jacks, special
connectors, and associated hardware
• Provide and install necessary power distribution boxes, conduits,
grounds, lightning protection devices, and associated hardware
• Make sure all applicable codes, regulations, and laws (including,
but not limited to, electrical, building, safety, and health) are met
• Provide and install auxiliary power or other equipment as required
• Provide storage or service areas as required
• Meet all system/unit environmental requirements
• Provide and install floor coverings and environmental systems that
limit or control static electricity build-up and discharge
In general, keep the NCR equipment area free from dust, smoke, lint,
and other particles. Restrict smoking, eating, and drinking around the
equipment. Avoid locating the equipment near other machines that
generate ink, carbon, and paper dust particles.
Finally, only the customer can know the full extent of the damage that
may be caused to his business by reason of failure of the equipment
that is to be installed. For this reason, it is the customer's responsibility
to ascertain the extent of any such possible damage to his existing or
planned business, and to effect full insurance for all eventualities.
Page 18
6Site Preparation
AC Store Wiring Requirements
The customer must provide suitable AC power for the retail terminals,
associated equipment, and devices. A dedicated unswitched power
line dedicated to the NCR equipment installation is recommended.
Refer to the Workstation and Peripherals AC Wiring Guide (BSTO2115-53) for store AC wiring requirements. The AC outlet must be
installed near the retail terminal and easily accessible to the operator.
LAN Communications
The terminal supports Ethernet 10/100 Base local area network (LAN)
communication protocol. For Ethernet communications wiring
specifications, refer to the NCR Ethernet Wiring Guide (BST0-2118-82).
Page 19
System Configuration Diagram
Site Preparation7
*
7158 & 7196 connect
NOTE:
to RS-232 or USB
*
7196
2189
NOTE: 7837 connect
to RS-232 or Wedge
7837
5972-2000
Customer
Display
Serial Only
5972-1000
Customer
Display
7448
Customer
Display
5973
International
Customer
PS/2 or USB
Display
Keyboard
CRT
Operator or
Customer
Display
PS/2
LCD
Wedge
VGA
KBD
RS-232 Transaction Printers
*
7194
7166
7158
7162
7454-K005
2113
Aux
Power
USB
7455
Cash Drawer
Aux Power
7
8
9
4
5
6
1
2
3
0
Parallel/
Serial
Aux Power
Parallel
LAN
Cash Drawers
AC
Only
7875
Scanner/Scale
AC
Only
Scanner/Scale
7872
7880
Scanner/Scale
RS-232 Peripherals
AC
7892
Bi-modal
Presentation
Scanner
Ethernet
5945
Electronic
Payment
Terminal
5992
Signature
Capture
18984
Page 20
8Site Preparation
Physical Considerations
This section presents the following retail terminal information:
• Operating and service clearance requirements
• Display mounting considerations
• Retail terminal and component dimensions
• Component weights
• Airflow requirements
• Power requirements
Page 21
Operating and Service Clearance Requirements
LocationComponentDistanceReason
Above
7158 Printer305 mm (12 in.)Clearance to raise printer cover
7162 Printer197 mm (7.75 in.)Clearance to raise printer cover
7166 Printer280 mm (11 in.)Clearance to raise printer cover
7194 Printer228 mm (9 in.)Clearance to raise printer cover
7196 Printer254 mm (10 in)Clearance to raise printer cover
CRT Displays50 mm (2 in.)Clearance for CRT tilt
Site Preparation9
Left Side
Right Side
Front
Behind
5972-1000
25 mm (1 in.)Clearance for display tilt
2 x 20 Display
All units153 mm (6 in.)Service clearance
All units153 mm (6 in.)Service clearance
5972 2 x 20 Display25 mm (1 in.)Clearance for display rotation
All units202 mm (8 in.)Service clearance
7162 Printer127 mm (5 in.)Clearance to open printer door
Drawer unit330 mm (13 in.)Clearance to open drawer
7162 Printer76 mm (4 in.)Clearance to raise printer cover
All units153 mm (6 in.)Service clearance
Page 22
10Site Preparation
Component Dimensions
NCR 7455 with Integrated Customer Display and PCMCIA
475 mm
(18.7 in.)
445 mm
(17.5 in.)
789
4
1
56
23
380 mm
(15.0 in.)
466 mm
(18.3 in.)
18818
Page 23
NCR 7455 with Integrated Post Customer Display
475 mm
(18.7 in.)
Site Preparation11
7453-K005 Cash Drawer
455.6 mm
( 17.94in.)
108 mm
(4.25 in.)
450.9 mm
(17.75 in.)
7
89
456
12
480 mm
3
(19.0 in.)
406 mm
(16.0 in.)
18817
263.5 mm
(10.375 in.)
Operating and Service
Clearance for Drawer
18038
Page 24
12Site Preparation
NCR 2189 Cash Drawer
464 mm
(18.25 in.)
133 mm
(5.25 in.)
527 mm
(20.5 in.)
Operating and
Service Clearance
for Drawer
NCR 2113 Cash Drawer
330 mm
(13 in.)
16676
96 mm
(3.75 in.)
400 mm
(15.75 in.)
450 mm
(17.75 in.)
254 mm
(10 in.)
Operating and
Service Clearance
for Drawer
17310
Page 25
NCR 7162 Receipt Printer
148mm
(5.5 in.)
Site Preparation13
165 mm
(6.5 in.)
NCR 7194 Thermal Receipt Printer
85 mm
(3.30 in.)
157 mm
(6.20 in.)
130 mm
(5.10 in.)
240 mm
(9.45 in.)
16099
212 mm
(8.3 in.)
187 mm
(7.4 in.)
16492
Page 26
14Site Preparation
NCR 7166 Thermal Receipt/Impact Printer
171 mm
(6.75 in.)
280 mm
(11.00 in.)
248 mm
(9.75 in.)
330 mm
(13.00 in.)
NCR 7158 Thermal Receipt/Impact Printer
165 mm
(6.50 in.)
336 mm
(13.25 in)
229 mm
(9.00 in)
17308
305 mm
(12.00 in.)
17307
Page 27
NCR 7196 Thermal Receipt Printer
Site Preparation15
108 mm
(4.25 in.)
140 m
(5.50 in.)
146 mm
(5.75 in.)
254 mm
(10.00 in.)
17306
Page 28
16Site Preparation
NCR 7455 - 4x20 Remote Post Customer Display
110 mm
(4.25 in.)
95 mm
(3.75 in.)
180 mm
(7 in.)
506 mm
(22.1 in.)
95 mm
(3.75 in.)
50 mm
(3.5 in.)
18819
Page 29
NCR 5972 2x20 Remote Post Customer Display
Site Preparation17
119 mm
(4.7 in.)
95 mm
(3.75 in.)
262 mm
(10.3 in.)
30 mm
(1.2 in.)
506 mm
(22.1 in.)
95 mm
(3.75 in.)
15708
Page 30
18Site Preparation
NCR 5973 International Remote Post Customer Display
110 mm
(4.3 in.)
95 mm
(3.75 in.)
262 mm
(10.3 in.)
45 mm
(1.8 in.)
350 mm
(13.8 in.)
95 mm
(3.75 in.)
17236a
Page 31
NCR 5972 Remote Table-Top Customer Display
Site Preparation19
110 mm
(4.3 in.)
262 mm
(10.3 in.)
178 mm
(7.0 in.)
158 mm
(6.2 in.)
173 mm
(6.8 in.)
45 mm
(1.8 in.)
17237
Page 32
20Site Preparation
NCR 2336-K007 External CD-ROM Drive
155 mm
(6.1 in.)
218 mm
(8.6 in.)
23 mm
(0.9 in.)
16951
Note: Allow 75 mm (3 in.) clearance in the back of the NCR 2336-K007
External CD-ROM Drive for connector and cable clearance.
NCR 2336-K008 USB RS-232 Port Server
183 mm
(7.2 in.)
111 mm
(4.4 in.)
26 mm
(1.0 in.)
16950
Page 33
Site Preparation21
Component Weights
The following table shows the component weights for each integrated
component.
Core module contain a three-wire, single-phase, selectable 120/240 volt
AC, 95 Watt power supply. The supply powers the retail terminal,
DynaKey, MSR, some scanner, VFD display, keyboard, USB interface,
cash drawer, and PCMCIA cards.
The following tables show operating specifications for the power
supply.
Maximum Input Power Specifications
120 volt240 volt
Voltage Ranges90 - 136 VAC198 - 257 VAC
Frequency50/60 Hz50/60 Hz
Current (A)1.00.5
Power (W)9090
Power Factor (typical)0.480.38
Typical Power Requirements
SystemRetail Terminal ConditionAmpsWattsKVA
120 Volt7455 Soft OFF0.3920.90.04
7455 Idle (Power ON)0.5935.30.07
7455 Active with 4x20
0.6638.30.08
display ON
240 Volt7455 Soft OFF0.2518.50.05
7455 Idle (Power ON)0.3837.60.10
7455 Active with 4x20
0.4340.60.11
display ON
Page 36
24Site Preparation
Cable Routing Considerations
External cables can be routed out the back of the Table-Top Mount.
The internal cable connectors on the terminal are located on the
underside of the Core Module under the Cable Cover.
Screws (2)
18365
Page 37
Considerations for Enclosed Installations
Thermal Test Points
Site Preparation25
With the terminal installed in the enclosure, verify that the temperature
does not exceed 45
o
C (115o F) in the operating environment. Test the
temperature at the rear access panel covering the CD-ROM and hard
drive.
Note: For terminal servicing information refer to NCR 7455 Retail
Terminal Hardware Instal la tion & Serv ice (B005-0000-1285).
Service Access
The enclosure must provide access to certain locations for service
purposes.
18820
Page 38
26Site Preparation
System Cables
Cable TypeCable NameNCR Part No.Corp. ID NoApproximate
Cable Lengths
Cash DrawerDual Drawer, Y cable497-04093941416-C372-00060.6 m/2 ft
Communications Ethernet, 10/100Base-T497-0008623
(Unshielded)
USB497-04159491416-C528-00101 m/3 ft
USB497-04159501416-C528-00404 m/13 ft
DisplaysRemote Customer Display
(Parallel Interface)
2x20 Customer Display
(RS-232 Interface)
Parallel I/F Cable
(adapter cable)
PowerU.S. – Straight006-10090371416-C325-00303 m/10 ft
U.S. – Twist-lock250-00231911416-C419-00303 m/10 ft
Intl. – Straight ‘BM’ Power 006-86010101416-C323-00303 m/10 ft
Intl.006-10122241416-C411-00303 m/10 ft
SEV – Straight ‘BM’ Power 230-01139551416-C408-00303 m/10 ft
UK – Straight ‘BM’ Power006-86010121416-C321-00303 m/10 ft
UK – Rectangular230-01139561416-C409-00303 m/10 ft
Australia – Straight ‘BM’
Cable TypeCable NameNCR Part No.Corp. ID NoApproximate
Cable Lengths
Printer Extender
Drop Cables
(7453-K641)7194 Printer497-04118161416-C418-00404 m/13 ftPrinter Power
7162/7166/7196
497-04118151416-C417-00404 m/13 ft
Printer/Workstation
7194 Printer497-04059451416-C286-00404 m/13 ft
Supply
Page 40
28Site Preparation
Cable Illustrations
Dual Cash Drawer, Y-cable
497-0409394
Cash
DWR. #1
Cash
DWR. #2
16 mm
(0.625 in.)
Ethernet, 10/100 Base-T
Modular
8-Pin
Plug
19 mm
(.75 in.)
USB, 1- or 4-Meter
Access Hole Diameters
497-0008623
Access Hole Diameters
19 mm
(.75 in.)
51 mm
(2.0 in.)
15808
Modular
8-Pin
Plug
16298
Page 41
Printer Interface Cables (RS-232)
7162/7166/7196
9-pin
D-shell
Receptacle
497-0407427 - 1 m
497-0407429 - 4 m
497-0407430 - 15 m
Site Preparation29
25-pin
D-shell
Plug
Workstation
RS-232 Port
7194/7158
Workstation
RS-232 Port
38 mm
(1.5 in.)
9-pin
D-shell
Receptacle
38 mm
(1.5 in.)
Access Hole Diameters
497-0408349 - 0.7 m
497-0407943 - 4 m
497-0409379 - 15 m
Access Hole Diameters
Printer
63.5 mm
(2.5 in.)
13224
9-pin
D-shell
Receptacle
Printer
38 mm
(1.5 in.)
13223
Page 42
30Site Preparation
1
ToP
B
8
M
R
T
C
D
C
P
4
1
2
D
R
2
M
R
2
(
5
(
A
1
(
P
4
NCR 5972 Remote Customer Display and Adapter Cables
arallel I/F Cable
97-0411000 - 0.6 M
To
ust. Display
ort
5-pin
-Shell
eceptacle
7.1 mm
2.25 in.)
97-0405676 - 4 M
416-C278-0040
ower
-pin
rick
icrofit
eceptacle
ccess Hole Diameters
9 mm
0.75 in.)
4-pin
icrofit
eceptacle
o
ustomer
isplay
5 mm
1.0 in.)
6291
Page 43
External CD-ROM Cable
1
T
P
C
SMK2
T
P
C
4
1
2
D
R
2
S
D
3
(
5
(
A
1
(
T
C
P
1
T
P
C
4
1
2
D
R
2
S
D
3
(
5
(
A
T
C
P
Site Preparation31
5-pin
-Shell
eceptacle
o CD-ROM
arallel
onnector
7 mm
2.25 in.)
External Parallel Cable
5-pin
-Shell
eceptacle
97-0413011 - 0.6 M
416-C464-0006
o CD-ROM
onnector
mm Plug
ccess Hole Diameters
2 mm
0.5 in.)
97-0411000-0.6 M
416-C472-0006
ower
8-pin
ub-Miniture
-Plug
1.25 in.)
8-pin
ub-Miniture
-Plug
ust. Display
1 mm
o 7455
ort
6959
o CD-ROM
arallel
onnector
o 7455
ust. Display
ort
ccess Hole Diameters
7 mm
2.25 in.)
1 mm
1.25 in.)
7390
Page 44
32Site Preparation
Automatic Change Dispenser Serial Cable
P1
5
1
9
6
Power, AC
9-Pin
D-shell
Receptacle
006-1009037
Access Hole Diameter
497-0404832
Workstation
45 mm
(1.75 in.)
25-pin
D-shell
Plug
P2
13
25
1
14
18056
15405
Page 45
Site Preparation33
Environmental Requirements
Barometric Pressure
The 7455 Retail Terminal is designed to operate within the following
barometric pressure conditions:
• Maximum operating altitude: 3000 m (9843 ft)
• Operating range of pressure: 105 kPa to 69 kPa (15.2 lb/in. to 10.0
lb/in.)
Temperature
The 7455 Retail Terminal is designed to operate over the temperature
ranges shown below. Continuous operation must be avoided, however,
at or near the temperature extremes, or in locations where temperature
changes exceed the temperature restrictions.
Temperature Parameter Restriction
Operating
Storage
Shipping
Dew Point
5oC to 45oC (41oF to 113oF), dry bulb
-10oC to 50oC (14oF to 122oF), three months
-40oC to 60oC (-40oF to 140oF), one week
26oC (79oF) maximum
Humidity
The 7455 Retail Terminal is designed to operate within the humidity
ranges shown below. Continuous operation must be avoided, however,
at or near the humidity limits, or in locations where humidity changes
exceed the humidity restrictions. In no case should the 7455 Retail
Terminal be subjected to condensation.
Humidity TypeRestriction
Relative10% to 90%
Maximum change rate10%/60 minutes
Storage10% to 90% relative humidity, three months
Shipping5% to 95% relative humidity, one week
Page 46
34Site Preparation
Page 47
Appendix A: Transient Protection
AC Power Line Transient Protection
In the process of power distribution, transient electrical energy
(including, but not limited to, lightning strikes, intermittent short
circuits, and switching transients) can be introduced onto power lines.
Such transient energy can be very damaging to electronic hardware,
and can also cause data corruption. Under these circumstances, NCR
recommends the use of AC power transient suppressors. Such
protection devices are intended to guard against power line transients
that can result in hardware damage and various system or program
errors.
Improvement of any deficiencies in power quality is a customer
responsibility. Malfunction and/or component failure as a result of
power quality problems is not covered by the NCR Maintenance
Agreement. NCR accepts no liability for any such occurrence or for its
consequences.
When power transient suppression is required, the suppressors used
should meet the following minimum requirements:
• Dissipate energy to match the appropriate application categories as
defined by IEEE Standard 587.
• Be of the voltage limiting (clipping), or tracking filter type. The
suppressor must not clamp the voltage to zero, and must selfrecover after the passage of the transient. The suppressor may be of
the hybrid type construction that makes use of various technologies
in order to meet speed and dissipation requirements.
• Upon failure, exhibit a positive indication of its failure such as a
blown fuse or tripped breaker.
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A-2Appendix A: Transient Protection
• Be listed by the accepted safety organization for the country
involved (UL, CSA, VDE, ETL, and so on) and the installation must
conform to local, state, and national electrical codes and
regulations.
Data Line Transient Protection
The nature of the transient phenomenon may extend to the data
communication lines connected to this equipment. It is the
responsibility of the customer to install and connect a data line
transient suppression system to correct or prevent any deficiencies.
Such systems must meet the following minimum requirements:
• Be of the voltage limiting type and must self-recover after passage
of the transient.
• Insert less than 5 ohms resistance and minimal inductive and
capacitive loading at the operating frequency for non-MIRLAN
data lines, in order to avoid signal degradation.
• Be installed in accordance with all applicable local, state, and
national electrical codes and regulations.
Note: In certain countries, NCR is able to supply both power and data
line transient suppressors as well as a comprehensive line of power
conditioning equipment. For application data, contact your NCR
Customer Services Division Representative.
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Index
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2336-K007 External CD-ROM Drive, 20
2336-K008 USB RS-232 Port Server, 20