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WSP-3442
DS0, DS1, DS3 and Ethernet Cable Testing Standard
Revision 1.0 - 9/01/2012
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012
WINDSTREAM Proprietary and Confidential ii
Copyright Notice
Copyright © 2012 Windstream® Incorporated. All rights reserved. The entire contents of this document are protected under the United States copyright laws.
You may print and download portions of material from this document for your own internal, non-commercial use. For any other copying, redistribution, retransmission or publication of any downloaded material; you must have the express written prior consent of Windstream Incorporated.
“Windstream” and all related products and service names, marks, and slogans are trademarks of Windstream Incorporated. Other product and company names mentioned herein may be trademarks of their respective companies.
Misuse of the trademarks or any other content in this publication is strictly prohibited.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 Table of Contents
WINDSTREAM Proprietary and Confidential iii
Table of Contents
List of Figures ............................................................................................................................................... iv
List of Tables ................................................................................................................................................ iv
Document Purpose ........................................................................................................................................ v
Revision History ............................................................................................................................................. v
Areas Affected .............................................................................................................................................. vi
Approval ........................................................................................................................................................ vi
1. OVERVIEW ....................................................................................................................... 1
2. TESTING OF INSTALLED DS0 CABLES ....................................................................... 2
2.1. DS0 Test Procedure ....................................................................................................................... 2
2.2. Visual Inspection ............................................................................................................................ 2
2.3. End-to-End Testing ........................................................................................................................ 3
3. TESTING OF INSTALLED DS1 CABLES ....................................................................... 5
3.1. DS1 Test Procedure ....................................................................................................................... 5
3.2. Visual Inspection ............................................................................................................................ 5
3.3. End-to-End Testing ........................................................................................................................ 6
3.3.2. Detailed Test Procedure for Checking Intermittent Connections ..................................................... 6
4. TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES .............................................. 9
4.1. DS3/EC-1 Test Procedures ............................................................................................................ 9
4.2. Visual Inspection ............................................................................................................................ 9
4.3. Pin Height ...................................................................................................................................... 10
4.4. End-to-End Testing ...................................................................................................................... 11
4.4.2. Detailed Test Procedure for Checking Continuity, Facility Transposes, and Intermittent Connections .................................................................................................................................... 11
4.4.3. Detailed Test Procedure for Checking ”In” to “Out” Cables Transposed ....................................... 15
5. TESTING OF INSTALLED 10 MB/S ETHERNET CABLES ........................................... 18
5.1. 10 MB/S Ethernet Test Procedure ............................................................................................... 18
5.2. Visual Inspection .......................................................................................................................... 18
5.3. End-to-End Testing ...................................................................................................................... 18
6. DEFINITIONS .................................................................................................................. 28
7. REFERENCES ................................................................................................................. 29
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 List of Figures
WINDSTREAM Proprietary and Confidential iv
List of Figures
Figure 1 Checking the Continuity of AnyMedia DS0 cables using a digital multimeter ........................ 3
Figure 2 Checking the Continuity of DS0 cables terminated at the CAP-D panel using a digital multimeter ......................................................................................................................................... 4
Figure 3 DS1 Test Set Configured for a T1-6/55 OCT signal ................................................................. 6
Figure 4 DS1 Test Set connected to the In and Out DS1 pairs at the DSX-1 Panel .............................. 7
Figure 5 Looping back the In and Out DS1 Cable Pairs with a Bantam to Bantam patch cord ............. 8
Figure 6 DS3 Test Set configured for a 2^23-1 PRBS signal ............................................................... 11
Figure 7 DS3 Test Set Connected to a coaxial cable pair at the DSX-3 panel .................................... 12
Figure 8 Looping-Back a coaxial cable pair with a patch cord.............................................................. 13
Figure 9 Looping-Back a coaxial cable pair with a barrel connector .................................................... 14
Figure 10 Testing an Ethernet patch cord end-to-end with a cable Test Set pair ................................ 19
Figure 11 The local unit of a cable testing pair displaying the results of a wire map test ..................... 20
Figure 12 The local unit of a cable testing pair displaying the results of an attenuation test ............... 22
Figure 13 The local unit of a cable testing pair displaying the results of a NEXT test .......................... 24
Figure 14 The local unit of a cable testing pair displaying the results of a length test ......................... 26
List of Tables
Table 1 Insertion Loss ........................................................................................................................... 21
Table 2 NEXT Loss ............................................................................................................................... 23
Table 3 Return Loss .............................................................................................................................. 25
Table 4 Link/Channel Test Limits .......................................................................................................... 27
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 Document Purpose
WINDSTREAM Proprietary and Confidential v
Document Purpose
This WSP shall detail the testing procedures that must be performed on all DS3/EC1, DS1, DS0, and 10
Mb/s Ethernet cables that are installed in the Windstream network, without regard to their points of
termination. The test procedure, for the cable type being installed, must be completed in its entirety
before it will be considered for placement in to service within Windstream’s network. Also, the test
procedures, detailed in this document, are meant to illustrate just one method of verifying the necessary
test criteria. Other methods may be used depending on the personnel and test equipment available at the
time of testing as long as the required test criteria are verified.
Revision History
Version: 1.0 Release Date:
Summary of Changes:
Author:
Subject Matter Expert:
File Name:
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 Areas Affected
WINDSTREAM Proprietary and Confidential vi
Areas Affected
The areas affected by this document are Equipment Engineering, Transport Engineering, Implementation
Engineering and Operations.
Approval
Network Engineering
Name: Job Title:
Name: Job Title:
Network Operations
Name: Job Title:
Name: Job Title:
Technical Review Approvers
Name: Job Title:
Name: Job Title:
Name: Job Title:
Name: Job Title:
Name: Job Title:
Name: Job Title:
Name: Job Title:
Name: Job Title:
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 Overview
WINDSTREAM Proprietary and Confidential 1
1. OVERVIEW
This WSP details the procedures and requirements for the testing of DS0, DS1, DS3, and
Ethernet cables that are installed within the Windstream network.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS0 CABLES
WINDSTREAM Proprietary and Confidential 2
2. TESTING OF INSTALLED DS0 CABLES
2.1. DS0 Test Procedure
The test procedure for the verification of installed DS0 cables is a two step procedure. The
two steps of the procedure are as follows:
1. A visual inspection of the installed DS0 cables shall be performed to determine that they
are properly ran, formed into place, secured, and terminated according to Windstream
workmanship standards.
2. An end-to-end test, of each installed DS0 cable, shall be performed to determine the
integrity of the cable and all the wire pairs within it.
Both of these steps must be successfully completed before an installed and terminated DS0
cable run will be deemed acceptable for placement into service.
2.2. Visual Inspection
A visual inspection of all installed and terminated DS0 cables shall be conducted at the end of
the installation phase in order to determine that they are properly ran, formed into place,
secured, and terminated. Windstream WSP-3262, Inside Plant Installation and Workmanship
Standard, details the workmanship standards for these items. Windstream WSP-3039,
Element and Cable Labeling Standard, details the necessary labeling needed for these cables
and termination blocks.
A number of the more salient items to visually inspect for are listed below for convenience.
However, WSP-3262, section 7, should be referenced for a complete account of
Windstream’s workmanship standards.
• Signal cables shall not be installed on any tray that carries power cable.
• Nylon cable ties may be used only for preliminary positioning of cables.
• Cables shall be protected from damage due to abrasion or compression at points of
contact with cable trays, hanger rods, cable falls to equipment, within equipment and all
other locations where the cable may become damaged.
• Soldered connections are not permitted in Windstream facilities.
• Wire shall be carefully formed to avoid excessive strain and congestion, to insure
accessibility for maintenance, and to maintain clearance between terminals.
• Spares and unused pairs will be left long enough to reach any circuit served by that cable,
folded back, and laced into the existing form. These pairs shall be accessible without
undoing the lacing for the working pairs of the cable.
• Wire-wrapped connections shall be installed and removed with an approved tool.
• An unacceptable wire-wrapped connection must be re-skinned and re-terminated.
Refer to WSP-3039 for a complete account of any labeling related items.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS0 CABLES
WINDSTREAM Proprietary and Confidential 3
2.3. End-to-End Testing
Upon the completion of running, securing, and termination of a DS0 cable run it shall be
tested end-to-end to verify it’s integrity. This testing shall consist of checking every wire pair
in every cable run for continuity, shorts, opens, and tip-ring reversals, transposing cables, and
splits. A multi-meter, tone generator, or other applicable test equipment may be used to
perform these tests. All defects, discovered during this testing phase, shall be documented
even if they were corrected upon discovery. (See Figure 1 and Figure 2, below, which show a
digital multi-meter being used to verify the continuity of the wires in a DS0 cable. In both
cases, one of the digital multi-meter leads is connected to a ground and the other lead is
connected to the wire under test. Also, the other end, of the wire under test, needs to be
grounded.)
Figure 1 Checking the Continuity of AnyMedia DS0 cables using a digital multimeter
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS0 CABLES
WINDSTREAM Proprietary and Confidential 4
Figure 2 Checking the Continuity of DS0 cables terminated at the CAP-D panel using a digital multimeter
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS1 CABLES
WINDSTREAM Proprietary and Confidential 5
3. TESTING OF INSTALLED DS1 CABLES
3.1. DS1 Test Procedure
The test procedure for the verification of installed DS1 cables is a two step procedure. The
two steps of the procedure are as follows:
1. A visual inspection of the installed DS1 cables shall be performed to determine that they
are properly ran, formed into place, secured, labeled, and terminated according to
Windstream workmanship standards.
2. End-to-end testing, of each installed DS1 cable, shall be performed to determine the
integrity of the cable and all the wire pairs within it.
Both of these steps must be successfully completed before an installed and terminated DS1
cable run will be deemed acceptable for placement into service.
3.2. Visual Inspection
A visual inspection of all installed and terminated DS1 cables shall be conducted at the end of
the installation phase in order to determine that they are properly ran, formed into place,
secured, labeled, and terminated. Windstream WSP-3262, Inside Plant Installation and
Workmanship Standard, details the workmanship standards for these items. Windstream
WSP-3039, Element and Cable Labeling Standard, details the necessary labeling needed for
these cables and termination blocks.
A number of the more salient items to visually inspect for are listed below for convenience.
However, WSP-3262, section 7, should be referenced for a complete account of
Windstream’s workmanship standards.
• Signal cables shall not be installed on any tray that carries power cable.
• Nylon cable ties may be used only for preliminary positioning of cables.
• Cables shall be protected from damage due to abrasion or compression at points of
contact with cable trays, hanger rods, cable falls to equipment, within equipment and all
other locations where the cable may become damaged.
• Soldered connections are not permitted in Windstream facilities.
• Wire shall be carefully formed to avoid excessive strain and congestion, to insure
accessibility for maintenance, and to maintain clearance between terminals.
• Spares and unused pairs will be left long enough to reach any circuit served by that cable,
folded back, and laced into the existing form.
• Wire-wrapped connections shall be installed and removed with an approved tool.
• An unacceptable wire-wrapped connection must be re-skinned and re-terminated.
Please refer to WSP-3039 for a complete account of any labeling related items.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS1 CABLES
WINDSTREAM Proprietary and Confidential 6
3.3. End-to-End Testing
The second step in the DS1 cable testing procedure is to verify the cable runs end-to-end.
This procedure is comprised of the following two steps.
1. Each DS1 cable run shall be tested end-to-end to verify its integrity. This testing shall
consist of checking every wire pair in every cable run for continuity, shorts, opens,
grounds, transposed cables, transposed In/Out pairs, and tip-ring reversals. A multi-
meter, tone generator, or other applicable test equipment may be used to perform these
tests. All defects, discovered during this testing phase, shall be documented even if they
were corrected upon discovery.
2. Each DS1 cable shall be checked for intermittent connections. The detailed procedure for
this step is listed below.
3.3.2. Detailed Test Procedure for Checking Intermittent Connections
Set up a test set for a DS1 signal and a T1-6/55 OCT stress pattern. (See Figure 3, below,
showing a DS1 test set configured T1-6/55 OCT test pattern.)
Figure 3 DS1 Test Set Configured for a T1-6/55 OCT signal
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS1 CABLES
WINDSTREAM Proprietary and Confidential 7
1. Connect the test set to the first pair of the “In” and “Out” DS1 cables. For equipment
facility cabling the test set should be connected to each DS1 cable pair at the DSX-1
panel and when testing tie cables it should be connected to the appropriate termination
panel. (See Figure 4, below, which shows a DS1 test set connected to the “In” and “Out”
DS1 cable pairs at the DSX-1 panel.)
Figure 4 DS1 Test Set connected to the In and Out DS1 pairs at the DSX-1 Panel
2. At the far-end, loop-back the first pair of the “In” DS1 cable to the first pair of the “Out”
DS1 cable. For equipment facility cabling loop the “In” to the “Out” DS1 cable pairs by
the appropriate means. For tie cables the far-end is normally terminated into a patch
panel, so the loop-back can be accomplished by inserting a looping plug or patch cable
into the appropriate jacks. (See Figure 5, below, which shows looping-back the “In” and
“Out” DS1 cable pairs via a bantam-to-bantam patch cord.)
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS1 CABLES
WINDSTREAM Proprietary and Confidential 8
Figure 5 Looping back the In and Out DS1 Cable Pairs with a Bantam to Bantam patch cord
3. Verify the test set is in pattern sync or lock.
4. Reset the bit error counters on the test set.
5. Manually insert errors on the line to make sure you have a good loop-back. Reset the bit
error counters on the test set.
6. Verify that the test set will run error-free for one minute.
7. Firmly wiggle the “In” and “Out” DS1 cable pairs, at each end, at a point, one inch from
the point of termination.
8. Verify that the test set is still running error-free.
Repeat steps 2 through 8 for each of the remaining cable pairs in the “In” and “Out” DS1
cable runs.
Remove the test set connections and all loopback connectors from the far-end.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 9
4. TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
4.1. DS3/EC-1 Test Procedures
The test procedure for the verification of an installed and terminated DS3/EC1 coaxial cable
run shall be comprised of the following three steps.
1. A visual inspection of the installed DS3/EC1 coaxial cables shall be performed to
determine that they are properly ran, formed into place, secured according to Windstream
workmanship standards and terminated with the proper BNC, per Windstream WSP-
3265, DSX-3 Standard.
2. Every BNC termination shall be checked for the proper pin height.
3. End-to-end testing shall be performed on every installed DS3/EC1 coaxial cable.
All three of these steps must be successfully completed before an installed and terminated
DS3/EC1 coaxial cable run will be deemed acceptable for placement into service.
4.2. Visual Inspection
A visual inspection of all installed and terminated DS3/EC1 coaxial cables shall be conducted
at the end of the installation phase in order to determine that they are properly ran, formed
into place, secured, and terminated. Windstream WSP-3262, Inside Plant Installation and
Workmanship Standard, details the workmanship standards for these items. Windstream
WSP-3039, Element and Cable Labeling Standard, details the necessary labeling needed for
these cables and termination blocks.
A number of the more salient items to visually inspect for are listed below for convenience.
However, WSP-3262, section 7, should be referenced for a complete account of
Windstream’s workmanship standards.
• Signal cables shall not be installed on any tray that carries power cable.
• Nylon cable ties may be used only for preliminary positioning of cables.
• Cables shall be protected from damage due to abrasion or compression at points of
contact with cable trays, hanger rods, cable falls to equipment, within equipment and
all other locations where the cable may become damaged.
• Soldered connections are not permitted in Windstream facilities.
• Wire shall be carefully formed to avoid excessive strain and congestion, to insure
accessibility for maintenance, and to maintain clearance between terminals.
• Spares and unused pairs will be left long enough to reach any circuit served by that
cable, folded back, and laced into the existing form.
• Coaxial cable shall not be spliced except for temporary restorations of service.
• Coaxial connectors shall be of the crimp type and shall be attached to the coaxial by
crimping the center pin as well as the sleeve with the approved crimp tool and die.
Screw type connectors are not permitted in Windstream facilities.
Please refer to WSP-3039 for a complete account of any labeling related items.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 10
In addition to the items listed in the Workmanship section, of WSP-3262, the following items
should be checked for as well.
• The ferrule should be butted against the connector.
• The center pin shall be gold in color and shall not be discolored in any way.
• The center pin shall not be bent or off center.
• No stray shielding should be visible outside of the ferrule.
• Verify that the ferrule was crimped to the appropriate hex dimension. Typically, the
crimping tool will emboss this dimension on the ferrule during use. For Lucent 735
and 734 type coax cable, the hex dimension should be, nominally, 0.178” and 0.255”,
respectively.
• The ferrule shall be single crimped.
• The ferrule should exhibit six flat surfaces. No fins or excessive rounding of the
corners shall be allowed.
4.3. Pin Height
All BNC terminations shall be tested for the proper pin height. A Windstream approved pin
height tester shall be used to perform this test. Currently, Windstream approves the following
BNC pin height testers.
Trompeter Coax Cable Assembly 75 Ohm BNC Plug Test Set – Part Number 010-0133.
Mitutoyo Dial Indicator Depth Gauge – Part Number 1411.
The preferred BNC pin height tester, for Windstream technicians, shall be the Trompeter
Coax Cable Assembly 75-Ohm BNC Plug Test Set. When using this tester a BNC will pass
the pin height test when the Pin Height LED lights green. All BNCs must pass the pin height
test to be acceptable. Otherwise, the coaxial cable must be re-terminated with a new BNC
and then re-tested for pin height until it passes.
If the Mitutoyo Pin Height Dial Gauge is utilized to test a BNC for the correct pin height then
the following two criteria must be met for the connector to pass the test.
• The main dial must show a reading between +0.023” to –0.010”.
• The revolution dial must show a reading of 1.
Otherwise, the coaxial cable must be re-terminated with a new BNC and then re-tested for pin
height until it passes.
All BNC pin height testers shall be calibrated according to the manufacturers specifications
and calibration schedule.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 11
4.4. End-to-End Testing
The last step in the DS3/EC1 coaxial cable testing procedure is to verify the cable runs end-
to-end. This procedure is comprised of the following two steps.
1. Each DS3/EC1 coaxial cable pair (i.e., out and in) shall be checked for continuity, facility
transposes, labeling, and intermittent connections.
2. Each DS3/EC1 coaxial cable shall be checked for “In” to “Out” cables that may have
been transposed.
The detailed procedures for each of these steps are listed below.
4.4.2. Detailed Test Procedure for Checking Continuity, Facility Transposes, and Intermittent
Connections
Set up a test set for a DS3 signal and a 2^23-1 PRBS stress pattern. (See Figure 6 below
showing a DS3 test set configured for 2^23-1 test pattern.)
Figure 6 DS3 Test Set configured for a 2^23-1 PRBS signal
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 12
1. Connect the test set to the In and Out cables of the first DS3/EC1 coaxial cable pair. For
equipment facility cabling the test set should be connected to each DS3/EC1 coaxial
cable pair at the DSX-3 panel and when testing tie cables it should be connected to the
appropriate termination panel. (See Figure 7, below, showing a DS3 test set connected to
a DS3/EC1 coaxial cable pair at the DSX-3 panel.)
Figure 7 DS3 Test Set Connected to a coaxial cable pair at the DSX-3 panel
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 13
2. Loop-back the first DS3/EC1 coaxial cable pair at the far-end. For equipment facility
cabling loop the “In” to “Out” coaxial cables together with a BNC barrel connector. For
tie cables the far-end is normally terminated into a patch panel, so the loop-back can be
accomplished by inserting a looping plug or patch cable into the appropriate jacks. (See
Figure 8 and Figure 9, below, which show looping-back a DS3/EC1 coaxial cable pair
via a patch cord and a barrel connector, respectively.)
Figure 8 Looping-Back a coaxial cable pair with a patch cord
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 14
Figure 9 Looping-Back a coaxial cable pair with a barrel connector
3. Verify the test set is in pattern sync or lock.
4. Reset the bit error counters on the test set.
5. Manually insert errors on the line to make sure you have a good loop-back. Reset the bit
error counters on the test set.
6. Verify that the test set will run error-free for one minute.
7. Firmly wiggle each of the four coaxial cable ends, at a point, one inch from the BNC
connectors.
8. Verify that the test set is still running error-free.
Repeat steps 2 through 8 for each of the remaining DS3/EC1 coaxial cable pairs.
Remove the test set connections and all loop-back connectors from the far-end. The same
test set configuration will be utilized for the next procedure, so it can be left as is.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 15
4.4.3. Detailed Test Procedure for Checking ”In” to “Out” Cables Transposed
1. Using the test set, from the previous procedure, connect the transmit to the “Out” of
the first DS3/EC1 coaxial cable pair and the receive to the “Out” of the second
coaxial cable pair.
2. At the far-end connect the “Out” of the first coaxial cable pair to the “Out” of the
second coaxial cable pair, by the appropriate means.
3. Is the test set is in pattern sync or lock?
• If yes, proceed to step 11.
• If no, proceed to step 4.
4. Move the test set’s transmit to the “In” of the first coaxial cable pair.
5. Is the test set now in pattern sync or lock?
• If yes, proceed to step 6.
• If no, proceed to step 7.
6. The first coaxial cable pair has an “In” to “Out” transposed. Correct this defect.
Then, move the test set’s transmit back to the “Out” of the first coaxial cable pair.
Verify that the test set is in pattern sync or lock. Proceed to step 11.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 16
7. Move the test set’s transmit back to the out of the first coaxial cable pair and then
move the test set’s receive to the “In” of the second coaxial cable pair.
8. Is the test set now in pattern sync or lock?
• If yes, proceed to step 9.
• If no, proceed to step 10.
9. The second coaxial cable pair has an “In” to “Out” transposed. Correct this defect.
Then, move the test set’s receive back to the “Out” of the second coaxial cable pair.
Verify that the test set is in pattern sync or lock. Proceed to step 11.
10. Both the first and the second coaxial cable pairs have an “In” to “Out” transposed.
Correct both defects. Then, move the test set’s receive back to the “Out” of the
second coaxial cable pair. Verify that the test set is in pattern sync or lock. Proceed
to step 11.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED DS3/EC1 COAXIAL CABLES
WINDSTREAM Proprietary and Confidential 17
11. Move the test set’s receive to the “Out” of the third coaxial cable pair.
12. At the far-end connect the “Out” of the first coaxial cable pair to the “Out” of the
third coaxial cable pair.
13. Is the test set now in pattern sync or lock?
• If yes, proceed to step 15.
• If no, proceed to step 14.
14. The third coaxial cable pair has an “In” to “Out” transposed. Correct this defect.
Then, verify that the test set is in pattern sync or lock. Proceed to step 15.
15. Repeat steps 11 through 14 for each of the remaining coaxial cable pairs.
16. Remove the test set connections and reconnect any disconnected coaxial cables, at
the far-end. Double check that all the coaxial cables are properly connected, at each
end.
DS0, DS1, DS3 and Ethernet Cable Testing Standard WSP-3442 Revision 1.0 - 9/01/2012 TESTING OF INSTALLED 10 Mb/s ETHERNET CABLES
WINDSTREAM Proprietary and Confidential 18
5. TESTING OF INSTALLED 10 MB/S ETHERNET CABLES
5.1. 10 MB/S Ethernet Test Procedure
The test procedure for the verification of installed 10 Mb/s Ethernet cables is a two step
procedure. The two steps of the procedure are as follows:
1. A visual inspection of the installed 10 Mb/s Ethernet cables shall be performed to
determine that they are properly ran, formed into place, secured, and terminated
according to Windstream workmanship standards.
2. An end-to-end test, of each installed 10 Mb/s Ethernet cable, shall be performed to
determine the integrity of the cable and all the wire pairs within it.
Both of these steps must be successfully completed before an installed and terminated 10
Mb/s Ethernet cable run will be deemed acceptable for placement into service.
5.2. Visual Inspection
A visual inspection of all installed and terminated 10 Mb/s Ethernet cables shall be conducted
at the end of the installation phase in order to determine that they are properly ran, formed
into place, secured, and terminated. Windstream WSP-3262, Inside Plant Installation and
Workmanship Standard, details the workmanship standards for these items. Windstream
WSP-3039, Element and Cable Labeling Standard, details the necessary labeling needed for
these cables and termination blocks.
A number of the more salient items to visually inspect for are listed below for convenience.
However, WSP-3262, section 7, should be referenced for a complete account of
Windstream’s workmanship standards.
• Signal cables shall not be installed on any tray that carries power cable.
• Nylon cable ties may be used only for preliminary positioning of cables.
• Cables shall be protected from damage due to abrasion or compression at points of
contact with cable trays, hanger rods, cable falls to equipment, within equipment and
all other locations where the cable may become damaged.
• Wire shall be carefully formed to avoid excessive strain and congestion, to insure
accessibility for maintenance, and to maintain clearance between terminals.
Please refer to WSP-3039 for a complete account of any labeling related items.
5.3. End-to-End Testing
Upon the completion of running, securing, and termination of a 10 Mb/s Ethernet cable run it
shall be tested end-to-end to verify it’s integrity. The following tests shall be performed for
every installed and terminated 10 Mb/s Ethernet cable run: (See Figure 10, below, which
shows a local and remote pair of cable test units being used to verify the integrity of an
Ethernet patch cord. Note: that not all of the test procedures, listed in this section, require
both the local and remote cable test units to be utilized.)
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Figure 10 Testing an Ethernet patch cord end-to-end with a cable Test Set pair
1. Wire Map Test – This test will check all pairs within the cable for the following
defects:
• Opens – Lack of continuity between pins at both ends of the cable.
• Shorts – Two or more lines short-circuited together.
• Crossed pairs – A pair is terminated to different pins at each end of the cable
run.
• Reversed pairs – The individual conductors of a cable pair are terminated to
opposite pins at each end of the cable run.
• Split pairs – A conductor from each of two different cable pairs are
terminated as though they were from the same cable pair.
(See Figure 11, below, which shows the local unit, of a cable testing pair,
displaying the results of a wire map test. Note: that the remote test unit is
required for this test procedure.)
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Figure 11 The local unit of a cable testing pair displaying the results of a wire map test
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2. Insertion Loss – Insertion loss is a measure of signal loss in each individual
cable pair. The wire pair with the worst value for insertion loss is used for
comparison to acceptable test limits. See Table 1, below, for the acceptable test
limits, for insertion loss, per frequency.
Table #1 – Insertion Loss
Per ANSI/TIA/EIA 568 & TSB67 Category 3
Frequency
(MHz/dB) Link Channel
1.00 3.20 4.20
4.00 6.10 7.30
8.00 8.80 10.20
10.00 10.00 11.50
16.00 13.20 14.90
Table 1 Insertion Loss
(See Figure 12, below, which shows the local unit, of a cable testing pair,
displaying the results of an attenuation or insertion loss test. Note: that the
remote test unit is required for this test procedure.)
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Figure 12 The local unit of a cable testing pair displaying the results of an attenuation test
3. NEXT Loss – NEXT loss measures the cross-talk disturbance on a wire pair at
the end from which the disturbance signal is transmitted on the disturbing pair.
This test shall be performed from each end of the cable. The wire pair
combination with the worst value for NEXT loss is used for comparison to
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acceptable test limits. See Table 2, below, for the acceptable test limits, for
NEXT loss, per frequency.
Table #2 – NEXT Loss
Per ANSI/TIA/EIA 568 & TSB67 Category 3
Frequency
(MHz/dB) Link Channel
1.00 40.10 39.10
4.00 30.70 29.30
8.00 25.90 24.30
10.00 24.30 22.70
16.00 21.00 19.30
Table 2 NEXT Loss
(See Figure 13 below, which shows the local unit, of a cable testing pair,
displaying the results of a NEXT test. Note: that the remote test unit is required
for this test procedure.)
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Figure 13 The local unit of a cable testing pair displaying the results of a NEXT test
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4. Return Loss – Return loss measures the total energy reflected on each wire pair,
within the cable. This test shall be performed from each end of the cable. The
wire pair with the worst value for return loss is used for comparison to
acceptable test limits. See Table 3, below, for the acceptable test limits, for
return loss, per frequency.
Table #3 – Return Loss
Per ANSI/TIA/EIA 568 & TSB67 Category 3
Frequency
(MHz/dB) Link Channel
1.00 15.00 15.00
4.00 15.00 15.00
8.00 15.00 15.00
10.00 15.00 15.00
16.00 15.00 15.00
Table 3 Return Loss
5. The following parameters shall be tested and the results compared to the test
limits as given in Table 4, below.
• Length (Meter) – The length of all cable pairs shall be tested and is based on
the propagation delay measurement and the average value for NVP
(Nominal Velocity of Propagation)
(See photo #4.5, below, which shows the local unit, of a cable testing pair,
displaying the results of a length test. Note: that the remote test unit is not
required for this test procedure.)
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Figure 14 The local unit of a cable testing pair displaying the results of a length test
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Propagation Delay (@10 MHz) – The time required for a signal to travel from one end of the
cable to the other. All cable pairs shall be tested.
• Delay Skew (ns) – The difference in propagation delay between the cable
wire pairs. The pair with the shortest propagation delay is used as a
reference, which all other cable pairs are measured against. The pair with
the largest difference in propagation delay is used for comparison to the
acceptable test limit.
Table #4 – Link/Channel Test Limits
Per ANSI/TIA/EIA 568 & TSB67 Category 3
Test Limits
Parameter Link Channel
Length (m) 94 100
Propagation Delay @10 MHz (ns)
510 548
Delay Skew (ns) 43 50
Table 4 Link/Channel Test Limits
All defects, discovered during this testing phase, shall be documented even if they were
corrected upon discovery.
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6. DEFINITIONS
Term/Acronym Definition
DS0 Digital Signal Level 0. The basic building block of digital
communications. The DS-0 may be digitized voice or data and is a 64
kb/s data stream.
DS1 Digital Signal Level 1. A 1.544 Mb/s data stream that supports 24
DS0 traffic signals.
DSX-1 An access point for DS1 signals. The DSX-1 allows individual DS1
signals to be monitored, tested, or re-routed.
DS3 Digital Signal Level 3.
DSX-3 An access point for DS3/EC1 signals. The DSX-3 allows individual
DS3/EC1 signals to be monitored, tested, or re-routed.
EC-1 Electrical Carrier level 1. One designation for the electrical interface
signal that is counterpart to an STS-1.
Ethernet A local area network used for connecting computers, printers,
workstations, terminals, servers, etc., within the same building or
campus. Ethernet operates over twisted pair wire and coaxial cable at
speeds up to 10 Mb/s.
PRBS Pseudo Random Bit Sequence. A test pattern having the properties of
random data, but generated in such a manner that another device can
synchronize on the pattern and detect bit errors.
PRBS 2^23-1 An 8,388,607 bit PRBS pattern, which generates a maximum of 22
sequential zeros and 23 sequential ones. The pattern exceeds excess
zeros and does not meet the minimum ones density requirements for
T1 applications.
T1-6/55 OCT A test pattern that provides a fixed, unframed, 55-octet, hex pattern
and a variant of the MIN/MAX repeater stress pattern used to test a
repeaters’ ability to lock onto the incoming clock when the data
changes from high ones density to low ones density.
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7. REFERENCES
Windstream WSP-3262 Inside Plant Installation and Workmanship Standard
Windstream WSP-3039 Element and Cable Labeling Standard
Wavetek, Wandel, & Goltermann LT8000 Series Manual
Ameritech AM-TR-EEN-000011 Ameritech Installation, Administration and
Workmanship Requirements
Tellabs Document # 03.0317 Rev. F Installation Standards
Qwest Tech. Pub. 77350 Issue L Telecommunications Equipment Installation
Guidelines