Each Fluke Networks product is warranted to be free from defects in material and workmanship under normal use and service unless
stated otherwise herein. The warranty period for the mainframe is one year and begins on the date of purchase. The CableIQ
wiremap adapter is also warranted for one year. Parts, accessories, product repairs and services are warranted for 90 days
otherwise stated.Ni-Cad, Ni-MH and Li-Ion batteries, cables
extends only to the original buyer or end user customer of a Fluke Networks authorized reseller, and does not apply to any product
which, in Fluke Networks’ opinion, has been misused, abused, altered, neglected, contaminated, or damaged by accident or
abnormal conditions of operation or handling. Fluke Networks warrants that software will operate substantially in accordance with
its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke Netw
warrant that software will be error free or operate without interruption.
Fluke Networks authorized resellers shall extend this warranty on new a
authority to extend a greater or different warranty on behalf of Fluke Networks. Warranty support is available only if product is
purchased through a Fluke Networks authorized sales outlet or Buyer
permitted by law, Fluke Networks reserves the right to invoice Buyer for repair/replacement when a product purchased in one
country is submitted for repair in another country.
For
a list of authorized resellers, visit www.flukenetworks.com/wheretobuy
Fluke Networks warranty obligation is limited, at Fluke Networks option, to refund of the purchase price, free of charge repair
replacement of a defective product which is returned to a Fluke Networks authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke Networks authorized service center to obtain return authorization
information, then send the product to that service center, with a descripti
destination). Fluke Networks assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer,
transportation prepaid (FOB destination). If Fluke Networks determin
alteration, accident or abnormal condition of operation or handling, or normal wear and tear of mechanical components, Fluke
Networks will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the
product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation
charges (FOB Shipping point).
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE
NETWORKS SHALL NO
LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term
consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provisi
Warranty is held invalid or unenforceable by a court or other decision
the validity or enforceability of any other provision.
T BE LIABLE FOR ANY SPEC
IAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING
or other peripherals are all considered parts or accessories. The warranty
orks does not
nd unus
has paid the applicable international price. To the extent
.
on of the difficulty, postage and insurance prepaid (FOB
es that failure was caused by neglect, misuse, contamination,
of an implied warranty, or exclusion or limitation of incidental or
-maker of competent jurisdiction, such holding will not affect
ed products to end-user customers only but have no
The CableIQ™ Qualification Tester is a hand-held tester
that lets you test wiring and qualify the transmission
capabilities of twisted pair and 75 Ω coaxial cabling
installations.
The tester offers the following features:
•Autotest function qualifies cabling for Ethernet,
telephone, or CATV service in less than 4 seconds.
•Identifies wiremap faults, bridge taps, and port
characteristics.
•Discover mode automatically reports cable
characteristics and tells you if the cable is connected
to a device.
•Detects and displays the strength of RF coaxial
television signals.
•MultiMap™ function tests multiple segments through
bridge taps and detects faults on individual
conductors.
•Detects Ethernet service on twisted pair cabling and
television service on coaxial cabling.
•Locates crosstalk faults on twisted pair cabling and
impedance faults on twisted pair and coaxial cabling.
•IntelliTone
ITK100 or ITK200 probes to help you locate and
isolate cables behind walls, at patch panels, or in
bundles. Toner function also works with standard
analog probes.
•Continuity toner simplifies testing of security
switches at doors and windows.
•Blinks the port light on a hub or switch to help you
verify connectivity and cable routing.
™
function works with Fluke Networks
•Speaker test lets you quickly verify speaker
connections.
Warning or Caution: Risk of damage or destruction to
equipment or software. See explanations in the manual.
Warning: Risk of electric shock.
Consult the user documentation
This equipment not for connection to public
communications networks, such as active telephone
systems.
This product complies with the WEEE Directive
marking requirements. The affixed label indicates
that you must not discard this electrical/electronic
product in domestic household waste. Product
Category: With reference to the equipment types in
the WEEE Directive Annex I, this product is classed as
category 9 "Monitoring and Control Instrumentation"
product. Do not dispose of this product as unsorted
municipal waste.
To return unwanted products, contact the
manufacturer’s web site shown on the product or
your local sales office or distributor.
in this manual.
internationa
l electrical symbols used
40 year Environment Friendly Use Period (EFUP) under
China Regulation - Administrative Measure on the
Control of Pollution Caused by Electronic Information
Products. This is the period of time before any of the
identified hazardous substances are likely to leak out,
causing possible harm to health and the environment.
Conforms
MSIP-REM-FLK-016005052:
Korea
Class A Equipment (Industrial Broadcasting &
Communication Equipment)
This product meets requirements for industrial (Class A)
electromagnetic wave equipment and the seller or user
should take notice of it. This equipment is intended for
use in business environments and is not to be used in
homes.
to relevant Australian
EMC approval for
Warning
To avoid possible fire, electric shock, or
personal injury:
If this equipment is used in a manner not
specified by the manufacturer, the
protection provided by the equipment
may be impaired.
•
The tester is not intended to be connected to
active telephone inputs, systems, or
equipment,
to the voltages applied by these interfaces
may damage the tester and create a potential
shock hazard for the user.
•If
the
tester detects voltage, it shows a
screen that includes th
symbol (
these screens. Disconnect the tester if the
voltage alert symbol appears.
including ISDN devices. Exposure
rt
). Figure 1
e voltage ale
shows examples of
Caution
To avoid data
maximum
•Never attempt
the tester while runn
•Never operate portable transmitting devices,
such as walkie-talkies and cell phones, during
a cable test.
•Replace
battery message appears.
the batteries
loss and to ensure
accuracy of
to
test results:
send data from a PC
ing a cable test.
as soon as the low
to
•Always turn on the tester before connecting
it to a cable. Turning the tester on activates
the tool’s input protection
You can power the tester with four AA alkaline batteries
(included), four rechargeable nickel-metal hydride or
nickel-cadmium batteries, or four 1.5 V lithium batteries.
Most of the tester’s screens show a battery status icon
(b) near the upper-left corner. The message Low Batteries! appears when the batteries are too low for the
tester to function.
The batteries last about 20 hours during typical use (with
the backlight at the dim setting).
Figure 26 on page 65 shows how to replace the batteries.
Verifying Operation
The tester performs a basic self-test when you turn it on. If
the tester reports an error or does not turn on, refer to “If
Something Seems Wrong” on page 65.
Setting User Preferences
The following sections describe settings you may want to
change when you first start using the tester. For Autotest
settings, see “Selecting Tests to Run” on page 18.
The time and date are stored with saved Autotests. The
time setting uses a 24-hour clock.
To set the time and date:
1 Turn the rotary switch to SETUP.
2 Press
D to highlight Time / Date; then press H or
J.
3To select a field to edit, use
field; then press H or J.
4Use
AD to change the setting in the selected
field; then press H.
B C to highlight the
Entering User Information
The User Information screen lets you enter three lines of
text that are stored with saved Autotest results. For
example, you could enter the operator’s name and your
company’s name and location.
To enter user information:
1 Turn the rotary switch to SETUP.
2 Use
3 Use
4 Use
5 Press
6 Repeat steps 3 through 5 to edit text in other boxes.
You may need to check your tester’s hardware or
software versions before updating the software or if you
contact Fluke Networks about the tester.
1 Turn the rotary switch to SETUP.
2 Press
D to highlight Version Information; then
press H or J.
The Version screen shows the following:
• SN: Serial number
• SW: Software version
• HW: Hardware version
• HW Date: The date the tester’s operation was
last verified at a Fluke Networks service center.
Qualifying Cabling with the Autotest
The Autotest tells you if cabling will support a selected
application. If the cabling does not qualify for the
application, the Autotest’s fault information helps you
diagnose the problem.
You can save Autotest results to document the
installation.
The Autotest can qualify cabling for the following
applications:
•10BASE-T, 100BASE-TX, and 1000BASE-T twisted pair
Ethernet service
• VoIP (voice over internet protocol)
• Firewire (1394b-S100) service over twisted pair
cabling
• Analog telephone service
• Wiremap for any application
• 75 Ω coaxial applications, such as cable television
Qualification differs from the certification done by testers
such as the Fluke Networks DTX CableAnalyzer.
Certification involves testing against an industry standard
and a test limit (Category 6 and TIA Cat 6 Permanent Link,
for example). The cabling must perform within limits from
1 MHz to the highest frequency defined by standard.
Qualification means the cabling will support a selected
application, such as 100BASE-TX Ethernet service. The
Autotest qualifies cabling by testing the parameters
shown in Table 2 and comparing the results to the
selected application’s requirements.
If the Autotest fails, the results will help you diagnose the
problem. See also “Diagnosing Cabling Faults” on page 73
for common causes of failures.
Telephone cables wired in a bus topology (Figure 8)
connect the wall outlets in series. In this topology, you
measure the length from the last outlet to the
distribution center.
If you connect to an outlet in the middle of the series, the
tester reports a bridge tap. The length reported is the
length to the outlet, which is the patch cord length. The
tester cannot measure length past the outlet because
reflections from the cables on either side interfere with
measurements.
Tip: To quickly verify the wiremaps of telephone cabling
connected to a bridge tap, use the MultiMap
function in DISCOVER mode. See page 46.
If you are unsure which outlet is the last in the bus, do the
following:
1Connect the wiremap adapter or ID locator to the
beginning of the bus at the distribution center.
2Connect the tester to an outlet. Turn the rotary
switch to DISCOVER.
3If the tester reports a bridge tap, move to another
outlet. The last outlet will not show a bridge tap, and
will show the length to the distribution center.
About Qualification for VoIP (Voice Over Internet
Protocol)
Cabling that qualifies for VoIP will support the voice over
IP application; however, the quality of service may vary
depending on other factors. These factors include the
quality of the transmission system between the far-end
VoIP device and your cabling, the equipment used, and
the equipment’s QoS (quality of service) settings and
performance.
Tip: To determine if a fault is caused by a crosstalk or
impedance problem, use the Find Crosstalk Fault and
Find Impedance Fault functions in Diagnostic (DIAG)
mode.
•Fault detected: A localized impedance fault was
detected. Localized faults are usually caused by bad
connections. Check the cabling at the location given.
See the Appendix for other causes of impedance faults.
•Fault at connection to tester: The plug connected to the
tester is bad, or the tester’s connector is damaged.
Figure 11. Signal Performance Results (cont.)
•Insertion loss fault: The cabling’s attenuation is too
high. See the Appendix for causes of insertion loss
problems.
•1000BASE-T bandwidth fault: The cable has high
ELFEXT (equal-level far-end crosstalk). This may be
caused by poor-quality cable or connecting hardware.
See the Appendix for other causes of ELFEXT faults.
The distance to a bridge tap is approximate (
multiple reflections from the bridge tap interfere with
length measurements.
Note
Bridge tap detection requires a minimum of two
branches (excluding the branch connected to the
tester) at least 15 ft (4.6 m) long each, with a
combined length of at least 40 ft (12.2 m).
≈) because
Figure 12. Length Results Screens (cont.)
avv27.bmp
avv33.bmp
Delay skew failure (1000BASE-T only). Delay skew results are
available only if delay skew failed.
Delay skew is the difference in the arrival times of signals on
the cable pairs. See the Appendix for causes of delay skew
problems.
Note
If both the length test and skew test failed, only
the length results are shown.
The cabling passed the Autotest. The cabling is 80.2 m long,
with a wiremap adapter at the far end.
Figure 14. Autotest Results for Coaxial Cabling
avv43.bmp
The cabling passed the Autotest, but could not be
qualified because a far-end adapter was not used. The
tester cannot verify continuity to the end of the cabling.
The cabling failed the Autotest because it
is shorted. The short is at 82.9 m in this
example.
Note
Devices with low input resistance
may be reported as a short.
Figure 14. Autotest Results for Coaxial Cabling (cont.)
There is a splitter or fault somewhere along the cabling. Faults that typically
cause this message are impedance faults, such as a section of cable with the
wrong impedance.
If there is a splitter between the tester and wiremap adapter, the tester
cannot verify continuity to the adapter, and may indicate that a device is
connected.
Length cannot be determined because the splitter or fault interferes with
reflections used for length measurements.
Tip: Use the TDR plot in Discover mode to locate impedance problems on
coaxial cabling. See page 44.
The Splitter or Fault message may also appear on the other coaxial screens
described in this section.
The cabling is connected to a device, such as a television,
CATV service, VCR, DVD player, satellite dish, or antenna.
The device is turned off or its signal is outside the tester’s
detection band (40 MHz to 150 MHz).
The cabling cannot be qualified because length cannot be
determined. The device interferes with reflections used for
length measurements.
Some splitters may also appear as devices.
Figure 14. Autotest Results for Coaxial Cabling (cont.)
avv01.bmp
The cabling is connected to an active signal source that is
within the tester’s detection band (40 MHz to 150 MHz),
such as a television, CATV service, VCR, DVD player,
satellite dish, or antenna.
The cabling cannot be qualified because length cannot be
determined. The device interferes with reflections used for
length measurements.
Discover mode lets you quickly check wiremaps, measure
length, and determine if the cabling is connected to a
network or video device. Discover mode runs continuously
to help you isolate intermittent connections.
Discover mode tells you about the following:
For twisted pair cabling
• Wiremap
• Length
• Speed of an attached port (such as a hub or a
network interface card in a PC)
•Connection to telephone service
For 75 Ω coaxial cabling
• Continuity
• TDR (time domain reflectometry) plot. This shows
impedance changes along the cabling.
Results from Discover mode cannot be saved.
To test cabling in Discover mode:
Note
Not connecting a wiremap adapter or remote ID
locator to the far end of twisted pair cabling
limits the types of wiremap faults the tester can
detect.
1Connect the tester to the cabling. Figures 6, 7, 8, and
13 on pages 20, 21, 23, and 33 show typical
connections using a wiremap adapter.
You may also connect to cabling connected to
network or video devices.
2Turn the rotary switch to DISCOVER.
• Length
• Indicates signal presence or connection to a device
(such as CATV service, VCR, DVD player, satellite dish,
or antenna)
•W R: Wiremap adapter or remote ID locator, with its
number.
•
O: Open
• N: Short
• Q: Port, such as a hub, switch, or PC.
avv49.bmp
• E: Bridge tap.
• V: Voltage is detected. This may indicate an active
telephone circuit, ISDN line, or Power over Ethernet
(PoE) device. See page 6.
•U: The tester is connected to an active telephone
circuit.
•
T: A signal is present on the pair.
• ?: The tester cannot identify the termination.
Figure 15. Discover Mode Results for Twisted Pair Cabling (cont.)
Bridge tap detected at about 33.7 m.
The distance to a bridge tap is approximate (≈) because
multiple reflections from the bridge tap interfere with
length measurements.
Note
Bridge tap detection requires a minimum of
two branches (excluding the branch
connected to the tester) at least 15 ft (4.6 m)
long each, with a combined length of at least
40 ft (12.2 m).
Cabling is connected to a device at the far end, such as a
television, CATV service, VCR, DVD player, satellite dish,
or antenna.
The signal level graph indicates the strength of the
signal. Passive (non-amplifying) devices, such as satellite
dishes and antennas, usually produce low-level signals in
the cross-hatched area at the left side of the graph.
Active devices, such as CATV service or a DVD player,
produce levels beyond the cross-hatched area. The
example above shows a VCR’s signal level.
Figure 16. Discover Mode Results for Coaxial Cabling
Shorts and other decreases in impedance cause negative
spikes on the trace.
Figure 17. TDR Plots for Coaxial Cabling (cont.)
avv52.bmp
Reflection from a section of cable with the wrong impedance
(followed by the end of the cable).
The small positive spike at the start of the section indicates
higher impedance than the rest of the cable. The negative
spike is the end of the section, where the impedance drops to
the correct value.
You can use the tester with an optional tone probe to
locate cables in bundles, at patch panels, or behind walls.
Use the tester’s IntelliTone
Networks IP100 or IP200 tone probe. The digital
IntelliTone signal is easier to detect at a distance than
analog tones, and its frequency and encoding eliminate
cable misidentification due to signal bleed and radiated
or ambient noise.
The tester’s other tones, which are analog, can be
detected by most tone probes.
To use the toner:
1Connect the tester to twisted pair or coaxial cabling
as shown in Figure 20.
2Turn the rotary switch to TONE.
™
functions with a Fluke
3 Use
4 To tone coaxial cable, press
5 Use the probe to search for the cable.
The toner also turns on when you start an Autotest with
no adapter or ID locator connected.
DA to highlight a tone:
IntelliTone: One-note and two-note IntelliTone
signals for use with a Fluke Networks IP100 or IP200
probe.
Tone 1, Tone 2, Tone 3, Tone 4: Multi-note, analog
tones detectable by most tone probes.
For tones 1 through 4, press
tones.
J X to hear the
K c.
For details on using the IntelliTone function, see the
tone probe’s documentation.
The continuity function lets you test for opens and shorts
on the 8-pin modular jack or the coaxial connector. The
tester shows a bar graph of resistance from 500 Ω to
5000 Ω, and the tester’s audible tones vary depending on
the resistance measured.
On an 8-pin jack, the tester checks for continuity
between the wires in the pair you select. Pair 12 is the
default.
To check continuity:
1Verify that the circuit to be tested is not powered or
in service. For cabling, use DISCOVER mode to check
for active services. For other types of circuits or
components, use a voltage meter to check for
power.
2 Turn the rotary switch to DIAG.
3 Use
D to highlight Continuity; then press H,
J, or P.
4To check continuity using the coaxial connector,
press
K c.
5Connect the tester to the circuit, component, or
cabling to be tested. Figure 23 shows connections
using the optional 8-clip test lead.
The continuity function also acts as a toner for use with
an optional tone probe. The signal’s tone and rhythm
increase as resistance decreases. This lets you use a tone
probe to detect changes in resistance between wires in a
cable.
The tester’s continuity beeper is silent above
5 kΩ, but the toner signal is present for all resistance
values.
Figure 24 shows a typical application for the continuity
toner: testing security switches.
To use the continuity toner, refer to Figure 24 and use
the continuity function as described on page 52.
Locating Crosstalk and Impedance
Faults on Twisted Pair Cabling
The Find Crosstalk Fault and Find Impedance Fault
functions let you quickly check cable pairs for crosstalk
and impedance faults on twisted pair cabling.
Crosstalk is unwanted signal transmission between cable
pairs. Crosstalk can cause transmission errors in twisted
pair networks.
Impedance is electrical resistance to ac signals, such as
data and CATV transmissions. Impedance changes cause
signal reflections that can disrupt network operation and
cause poor CATV reception.
To find crosstalk or impedance faults:
Note
If you use patch cords at the near or far end
during crosstalk or impedance tests, Fluke
Networks recommends patch cords at least 2 m
long.
1Connect the tester to twisted pair cabling. A
wiremap adapter or ID locator is not required.
2 Turn the rotary switch to DIAG.
3 Use
4 To change the transmission standard, press
D to highlight Find Crosstalk Fault or Find
Impedance Fault; then press H or J.
J, use AD to select a standard; then press
H.
5To select a cable pair or pairs to test, press
highlight the pair(s), press H or J, use AD
to select a pair or pairs; then press H.
D to
H or
56
6Press
Table 3 describes the crosstalk and impedance fault
messages.
A localized crosstalk or impedance problem was detected. Localized faults are
usually caused by bad connections. Check the cabling at the location given.
Crosstalk or an impedance problem was detected along most or all of the cabling.
The cabling is of poor quality or is the wrong category for the selected application.
Marginal ELFEXT for 1000BASE-T Equal-level far-end crosstalk measurements are marginal.
Short or possible bridge tap The impedance is very low at the location given. Check for a short or bridge tap.
The tester uses an NVP value (nominal velocity of
propagation) and the signal delay through the cable to
calculate length. The tester’s default NVP values are
usually accurate enough to verify length; however, you
can increase the accuracy of length measurements by
adjusting the NVP to a specified or actual value.
The default NVP values are 70 % for twisted pair cable
and 82 % for coaxial cable.
Note
NVP values can vary among cable types, lots,
and manufacturers. In most cases, these
differences are minor and may be disregarded.
Setting the NVP to a Specified Value
To enter the NVP value specified by the manufacturer:
1Disconnect twisted pair and coaxial cables from the
tester.
2 Turn the rotary switch to SETUP.
3 Use D to highlight Length Calibration; then press
H or J.
Note
You may disregard the message “Cabling too
short” when setting the NVP to a specified
value.
4 To set the NVP for coaxial cable, press K
5 Press
To avoid possible fire, electric shock, personal
injury, or damage to the tester:
•Do not open the case. No user-serviceable parts
are inside.
•Replacing electrical parts yourself will void the
tester’s warranty and might compromise its
safety features.
•Use only specified replacement parts for userreplaceable items.
•Use only Fluke Networks authorized service
centers.
Updating the Tester’s Software
Keeping your tester’s software current gives you access to
the latest features. Software updates are available on the
Fluke Networks website.
To see the software version installed in your tester select
Version Information from the Setup menu. See “Checking
the Hardware and Software Versions” on page 15 for
details.
To determine if your tester needs a software update visit
the Fluke Networks website to see if an update is
available.
WCaution
To avoid unexpected loss of power, verify that
the tester’s battery level is at least 50 % before
updating the software.
Updating the software deletes saved results
from memory. If you need these results, use
CableIQ Reporter software to upload them to a
PC before updating the tester’s software.
Note
Changes to the update procedure may be posted
on the CableIQ Qualification Tester software
page on the Fluke Networks website.
1If you want to save any of the Autotests stored in the
tester, use CableIQ Reporter software to upload them
to a PC.
2Download the latest versions of CableIQ Reporter
software and the CableIQ update file from the Fluke
Networks website, or contact Fluke Networks to get
the files by other means. The files are available at
www.flukenetworks.com/support. Save the files to
your hard drive.
3Install the latest version of CableIQ Reporter on your
PC.
4Turn on the tester and connect it to the PC using the
USB cable provided.
5 On the CableIQ Reporter menu bar, select Utilities >
Update CableIQ Software , locate and select the CableIQ update file (.ref extension); then click OK.
Replacing the Batteries
Replace the 4 AA batteries when the message Low
Batteries! appears.
Note
Install new batteries within 3 minutes of
removing the old batteries. If you leave the
batteries out for more than 3 minutes, the time
and date may need to be reset.
The tester’s battery gauge is most accurate when
alkaline batteries are installed.
Figure 26 shows how to replace the batteries.
6To verify the update, turn the rotary switch to SETUP;
then select Version Information.
If the software update fails, repeat steps 4 through 6. If it
fails again, contact Fluke Networks for assistance.
Press and hold I until the tester turns off; then turn the tester on again.
Symptom 2: The tester reports an error.
Note the error number or type. Turn the rotary switch to a new position or cycle the power to clear the error. If the error
persists, contact Fluke Networks for assistance.
Symptom 3: The tester will not turn on.
Replace the batteries, verifying that they are installed correctly. See Figure 26.
Symptom 4: Length measurements are incorrect.
Check the NVP value. See “Calibrating Length Measurements” on page 60.
Symptom 5: Distance to a switch or hub does not appear, is changing, or is incorrect.
The device’s termination is affecting measurements. See page 40.
Tone generator Generates digital tones compatible with Fluke Networks IntelliTone probe and 4 tones
compatible with typical analog probes (all pairs, frequency 1-2 kHz).
Continuity test Resistance range: 0 Ω to 10,000 Ω
Tone generation: Variable tone between 500 Ω and 5,000 Ω. Tone is audible and can also
be detected by a tone probe.
Speaker test tone
Variable frequency with left and right speaker and polarity control.
generator
Crosstalk and impedance
Identifies
distributed and loca
fault diagnostics
Minimum and maximum lengths (using default NVP values):
Twisted pair
Coaxial
, Cat 6A and below: 3.4 m to 210.1 m (11.0 ft to 689.2 ft)
: 3.9 m to 246.0 m (12.9 ft to 807.4
Regulatory Information
This equipment generates, uses, and can radiate radio
frequency energy, and, if not installed and used in
accordance with the manual, may cause interference to
radio communications. It has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15, Subpart J of the FCC rules, which are
designed to provide reasonable protection against such
interference when operated in a commercial
environment. Operation of the equipment in a
lized crossta
lk and impedance faults on twisted pa
ir cabling.
ft)
residential area is likely to cause interference, in which
case the user, at his own expense, will be required to
take whatever measures may be required to correct the
interference.