Fluke 633 QuickCHECK-T1 User Manual
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Fluke 633 QuickCHECK-T1 User Manual

Fluke 633 QuickCHECK-T1 User Manual

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Fluke 635A Specs
Provided by www.AAATesters.com
®
635/633
QuickBERT-T1 and QuickCHECK-T1
Users Manual
PN 1278087
July 1999 Rev.1, 9/99
© 1999 Fluke Corporation, All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

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  • Page 1 Fluke 635A Specs Provided by www.AAATesters.com ® 635/633 QuickBERT-T1 and QuickCHECK-T1 Users Manual PN 1278087 July 1999 Rev.1, 9/99 © 1999 Fluke Corporation, All rights reserved. Printed in USA All product names are trademarks of their respective companies.
  • Page 2 Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period.

  • Page 3: Table Of Contents

    Table of Contents Chapter Title Page Introduction ................1-1 1-1. Introduction .................. 1-1 1-2. Design Highlights ................. 1-2 1-3. Safety Information ................ 1-3 1-4. Software Revision ................. 1-3 1-5. Self Test ..................1-3 1-6. Supplied Equipment..............1-4 1-7. Toolpak Accessory Kit..............1-5 1-8.
  • Page 4 635/633 Users Manual 2-22. NTWRK ................2-14 2-23. LINE..................2-14 2-24. PYLD ................... 2-14 2-25. ARM (ADTRAN) ..............2-15 2-26. HTU-R (ADTRAN).............. 2-15 2-27. HTU-C (ADTRAN).............. 2-15 2-28. HRE1 (ADTRAN) ..............2-15 2-29. HRE2 (ADTRAN) ..............2-15 2-30. NREM (PairGain)..............2-15 2-31.
  • Page 5 Contents (continued) 2-70. YELLOW ALARM/HISTORY LEDs ........2-26 2-71. DS1 IDLE SIGNAL/HISTORY LEDs........2-26 2-72. PATTERN SYNC LOSS/HISTORY LED......2-26 2-73. Error Inject LEDs (QuickBERT-T1 only)......... 2-27 2-74. Receive Loop Up/Down LEDs (QuickBERT-T1 only) .... 2-27 2-75. Send Loop Up/Down LEDs (QuickBERT-T1 only) ....2-27 2-76.
  • Page 6 635/633 Users Manual...
  • Page 7 List of Tables Table Title Page 2-1. Loop Code Types................2-13 2-2. Signaling Bits Displayed Based on Framing and Signaling Type..2-23 A-1. Mechanical Specifications ..............A-1 A-2. Electrical Specifications..............A-2...
  • Page 8 635/633 Users Manual...
  • Page 9 List of Figures Figure Title Page 1-1. QuickBERT-T1 Test Set..............1-1 1-2. Supplied Equipment................1-4 1-3. ToolPak Accessory Kit ..............1-5 2-1. QuickBERT-T1 Front Panel .............. 2-3 2-2. QuickCHECK-T1 Front Panel............2-4 3-1. Live-Traffic Monitoring..............3-3 3-2. Capturing and Displaying DTMF Digits..........3-6 3-3.
  • Page 10 635/633 Users Manual viii...

  • Page 11: Introduction

    Chapter 1 Introduction 1-1. Introduction This chapter of the manual contains general information about the Fluke 635 QuickBERT-T1 and 633 QuickCHECK-T1. These units are compact, handheld, fully-featured T1 test sets designed to thoroughly verify the performance parameter of a T1 facility.

  • Page 12: Design Highlights

    633/635 Users Manual 1-2. Design Highlights The QuickBERT-T1 and QuickCHECK-T1 are designed to allow users to easily analyze and correct the common problems arising in T1 networks. Experienced and inexperienced users alike can determine the integrity, configuration parameters, and general performance of a T1 circuit when using these units.

  • Page 13: Safety Information

    Introduction Safety Information 1-3. Safety Information W Warnings and Precautions To avoid possible electric shock or personal injury, and to avoid possible damage to the Test Set or to the equipment under test, follow these guidelines: • Before using the Test Set inspect the case. Do not use the Test Set if it is damaged.

  • Page 14: Supplied Equipment

    633/635 Users Manual 1-6. Supplied Equipment The QuickBERT-T1 and QuickCHECK-T1 come with the following items. • Carrying case • ToolPak Accessory Kit • A/C power adapter • Two bantam-to-bantam cables • Users manual • Trimmer tool (used to adjust display view angle) The 635-1 version of the QuickBERT-T1 also comes with a cable kit, which includes the following items.

  • Page 15: Toolpak Accessory Kit

    Introduction Toolpak Accessory Kit 1-7. Toolpak Accessory Kit The QuickBERT-T1 and QuickCHECK-T1 come with a ToolPak accessories kit. This kit includes a universal hanger, hook-and-loop straps, and a magnet. The universal hanger attaches to the unit and can be used by itself on a nail or hook, with a piece of rope or stiff wire.

  • Page 16: View Angle Adjustment

    1-9. Accessories Additional cables and headsets for use with the QuickBERT-T1 and QuickCHECK-T1 are available from Fluke Corporation. For information, please contact customer service at 888-993-5853. 1-10. Cleaning When cleaning the display surface, use a soft cloth (such as a gauze) with mild soap and water.
  • Page 17 Introduction Manual • Appendix A, Specifications, provides the specifications of the QuickBERT-T1 and QuickCHECK-T1. References to front panel keys are designated in upper case bold letters.
  • Page 18 633/635 Users Manual...

  • Page 19: Overview

    Chapter 2 Overview 2-1. Introduction This chapter of the manual contains information to familiarize you with QuickBERT-T1 and QuickCHECK-T1 controls and indicators. Refer to Appendix A for test set specifications. Figure 2-1 and 2-2 illustrate all control and indicator locations. 2-2.

  • Page 20: Controls

    633/635 Users Manual The RX INPUT key is provided for the Rx T1 receiver. Before making a connection from a T1 line to the RX jack, the RX INPUT key should be set appropriately. For additional information on the RX INPUT key and its settings, see section 2-42.
  • Page 21 Overview Controls LOW BATTERY 635 QUICKBERT - T1 ERRORS RESULTS BIT ERR BPV ERR FRM ERR CRC ERR FREQDEV RESTART TEST SIGNALING TxClk LOOP MODE TYPE SOURCE CODE CHANNEL DATA BITS FT1 CHANNEL SELECT SIGNALING BITS A B C D Rx STATUS PATTERN QRSS...
  • Page 22 633/635 Users Manual LOW BATTERY 633 QUICKCHECK - T1 ERRORS RESULTS BIT ERR BPV ERR FRM ERR CRC ERR FREQDEV RESTART TEST SIGNALING MODE TYPE CHANNEL DATA BITS FT1 CHANNEL SELECT SIGNALING BITS A B C D Rx STATUS PATTERN QRSS B8ZS 1 IN 7...

  • Page 23: Results Keys

    Overview Controls 2-6. RESULTS Keys These keys are used to scroll through the paired results parameters that appear on the display screen. To go from one pair of results to the next, use the RESULTS UP/DOWN keys (located to the right of the display screen). BPV Error Frame Err abn06f.eps...

  • Page 24: Crc Error/Bit Error

    633/635 Users Manual LED will illuminate solid to indicate a frame error is present and will flash to indicate a history of frame errors. 2-8. CRC Error/Bit Error BPV Error Frame Err abn07f.eps CRC Error If the test set establishes frame sync with an ESF-framed signal, it will detect and count cyclic redundancy check (CRC) errors.

  • Page 25: Ds1 Freq/Clk Slips

    Overview Controls 2-9. DS1 Freq/Clk Slips DS1 Freq 1544000Hz Clk Slips abn09f.eps DS1 Freq When the DS1 frequency result is selected (using the RESULTS keys), the test set displays the frequency (in Hz) of the DS1 signal. If the DS1 frequency deviates from the nominal (1.544 MHz ±...

  • Page 26: E-Bit Sync

    633/635 Users Manual Note If no reference clock measurement is being made, remove the plug from the REF jack to extend battery life. 2-10. E-Bit Sync E-Bit Sync E-Bit abn10f.eps If E-Bit is the selected signaling type (chosen with the SIGNALING TYPE key), the E-Bit Sync results screen will display Yes or No to indicate whether or not the span is in E-Bit sync.

  • Page 27: Ds0 Freq/Ds0 Level

    Overview Controls DS1 Level (dBDSX) When the DS1 level result is selected (using the RESULTS keys), the test set displays the level of the DS1 signal in dBDSX. A DS1 signal is transmitted at a 0 dBDSX level. The reading, therefore, indicates the loss (in dB) from the point of transmission to the point of measurement.

  • Page 28: Ft1 (Fractional T1)

    633/635 Users Manual Note The test set develops the analog signal level from the decoded digital signal. Therefore, the isolation resistors at a DSX monitor jack do not affect eh DSO-level reading. See the note under step 7b in section 3-6. 2-13.

  • Page 29: Restart Key

    Overview Controls 2-15. RESTART Key Bit errors, BPV errors, CRC errors, frame errors, clock slips, and errored seconds are cleared to "0" when the RESTART key is pressed. If one of these results is being displayed when the RESTART key is pressed, it will continue to be displayed, but "0"...

  • Page 30: Signaling Type Key

    633/635 Users Manual 2-17. SIGNALING TYPE Key When the test set is in frame sync, either the D4, ESF, or SLC96 green Framing LED illuminates. For further analysis, the unit provides the ability to view the state of the signaling bits and data bits for a selected DS0 channel. There are four yellow Signaling Bits LEDs provided for this purpose (A, B, C, D).
  • Page 31 Overview Controls Table 2-1. Loop Code Types Loop Code Loop-Up Code Loop-Down Code Type 10000 (IN-BAND) 100 (IN-BAND) NIU4 1100 (IN-BAND) 1110 (IN-BAND) NIU5 11000 (IN-BAND) 11100 (IN-BAND) NTWRK (ESF) 1111111101001000 (OUT-BAND) 1111111100100100 (OUT-BAND) LINE (D4) 10000 (IN-BAND) 100 (IN-BAND) LINE (ESF) 1111111101110000 (OUT-BAND) 1111111100011100 (OUT-BAND)

  • Page 32: Csu

    633/635 Users Manual 2-20. CSU This selection is made to loop up/down a CSU, typically on the far end of a T1 span (see Chapter 3). 2-21. NIU4, NIU5 This selection is made to loop an NIU. The NIU (sometimes called smart jack) is part of the network equipment and belongs to the service provider.

  • Page 33: Arm (Adtran)

    Overview Controls 2-25. ARM (ADTRAN) When ARM is selected and the SEND LOOP UP key is pressed, all ADTRAN HDSL equipment is armed, enabling the HDSL elements to be looped. When ARM is selected and the SEND LOOP DOWN key is pressed, all ADTRAN HDSL equipment is disarmed.

  • Page 34: Crem (Pairgain)

    633/635 Users Manual 2-34. CREM (PairGain) This selection causes the CREM (customer remote) to transition to a loopback state. 2-35. CLOC (PairGain) This selection causes the CLOC (customer local loop) to transition to a loopback state. 2-36. CDU1 (PairGain) This selection causes the CDU1 (customer doubler 1) to transition to a loopback state.

  • Page 35: Error Inject Keys (Quickbert-T1 Only)

    Overview Controls to the speaker (and headset jack). The DS0 channel selection (1-24) is shown on the display that is located to the left of the CHANNEL UP/DOWN keys. These keys are also used with Fractional T1 to select fractional channels. 2-40.

  • Page 36: Tx Pattern Key (Quickbert-T1 Only)

    633/635 Users Manual DSX MON - The DSX Monitor Mode is typically used to monitor in-service T1 spans through a DSX monitor jack that is resistor-isolated from the span. When DSX MON is selected, the receiver is terminated into 100 ohms. Due to the loading effect of the 100-ohm termination in series with the isolation resistors, there is approximately a 20 dB line drop seen by the receiver.

  • Page 37: All 0'S

    Overview Controls 2-45. 1 IN 7 This pattern is a sequence of a one and seven zeros in the following form: 0100 0000. The maximum number of sequential zeros is eight, when transmitted framed, and seven when transmitted unframed. This pattern is useful when testing for mis-optioned AMI/B8ZS equipment.

  • Page 38: Oct55

    633/635 Users Manual 2-52. OCT55 This pattern is a modified 2 -1 pseudorandom pattern which allows a maximum number of 14 sequential zeros and 20 sequential ones. 01 01 01 01 01 01 00 01 01 01 01 01 01 03 01 01 01 01 07 01 01 01 01 55 55 55 55 AA...

  • Page 39: Thru

    Overview Controls 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ←...

  • Page 40: Tx Frame Key (Quickbert-T1 Only)

    633/635 Users Manual 2-57. TX FRAME Key (QuickBERT-T1 only) Four possible framing selections are available with the QuickBERT-T1 (NONE, D4, ESF, SLC96). If NONE is selected, the QuickBERT-T1 will transmit the selected pattern unframed. That is, no framing bits are generated and no channels (DS0s) are defined.

  • Page 41: Signaling Bits Leds

    Overview Indicators positions. The first bit received for each DS0 byte is displayed in bit position 1 (least significant bit). If no channel is selected, the Data Bits LEDs will be off. 2-62. Signaling Bits LEDs The signaling for the selected DS0 channel is dropped to the Signaling Bits LEDs.

  • Page 42: Signal Present/History Leds

    633/635 Users Manual Note An out-of –service T1 usually has framed all ones or a keep-alive signal present. The test set cannot detect B8ZS in this condition. In order to make a declaration of line coding, eight consecutive zeros or a B8ZS substitution (for eight zeros) must be received.

  • Page 43: Ones Density/History Leds

    Overview Indicators out-of-frame condition clears, or if 15 or more zeros are counted in 13,895 or less bit times. The BLUE ALARM (AIS) HISTORY LED illuminates when a blue alarm is detected and then clears. Once the BLUE ALARM (AIS) HISTORY LED illuminates, it will remain illuminated until the RESTART key is pressed.

  • Page 44: Yellow Alarm/History Leds

    633/635 Users Manual (see sections 2-43). If the DS1 is a B8ZS circuit and the circuit is provisioned properly, excess-zero violations should not occur. The EXCESS ZEROS HISTORY LED illuminates when an excess-zeros condition is detected and then clears. Once the EXCESS ZEROS HISTORY LED illuminates, it will remain illuminated until the RESTART key is pressed.

  • Page 45: Error Inject Leds (Quickbert-T1 Only)

    Overview Indicators 2-73. Error Inject LEDs (QuickBERT-T1 only) These three LEDs illuminate to indicate that a logic, BPV, or frame bit error has been injected. When the ERROR INJECT key is momentarily pressed, the LED will flash and one error will be injected. When the ERROR INJECT key is pressed and held for approximately two seconds, the LED will constantly illuminate and inject the selected error at an error rate of 1.0E-4.

  • Page 46: Tx Line Code Leds (Quickbert-T1 Only)

    633/635 Users Manual expected customer payload, can provide an accurate estimate of the actual in- service network performance. The QuickBERT-T1 and QuickCHECK-T1 have the ability to obtain pattern sync with the following patterns: QRSS, 1 IN 7, 2 IN 8, 3 IN 24, ALL ZEROS, ALL ONES, 1:1, NET55, OCT55, and DALY55.

  • Page 47: Battery Safe Mode

    Overview Battery Safe Mode 2-81. Battery Safe Mode In order to protect the battery pack from being damaged by a complete discharge, the QuickBERT-T1 and QuickCHECK-T1 incorporate a Battery Safe mode. If the test set is left on, the power supply will shut down internally to prevent a complete discharge.
  • Page 48 633/635 Users Manual 2-30...

  • Page 49: Operation

    Chapter 3 Operation 3-1. Introduction This chapter of the manual includes operation procedures for the most commonly used tests of the QuickBERT-T1 and QuickCHECK-T1 test sets. 3-2. Automatic Evaluation When the RESTART key is pressed, the unit automatically evaluates the incoming signal for framing type, line coding, and BERT patterns.

  • Page 50: Pattern Evaluation

    633/635 Users Manual 3-4. Pattern Evaluation The QuickBERT-T1 and QuickCHECK-T1 evaluate the data of the incoming signal to determine if it matches one of the supported BERT patterns. The unit supports QRSS, 1 IN 7, 2 IN 8, 3 IN 24, ALL 0’S, ALL 1’S, 1:1, NET55, OCT55, DALY55, or USER (QuickBERT-T1 only).
  • Page 51 Operation Evaluating Live Traffic Note Not all CSU manufacturers provide proper isolation from the monitor jacks to the T1 line. Consult the literature from your CSU manufacturer to determine the proper setting for the test set. Central Office Customer Premises LINE Bantam-to-Bantam Cable ON 9VDC RED-CHARGING...
  • Page 52 633/635 Users Manual 5. Press the RESTART key to erase any errors registered during setup and initiate auto evaluate. 6. Observe indicators. Status LEDs These LEDs provide information about the health of the T1 signal. See section 2-63 for a full definition of the functions of these indicators.
  • Page 53 Operation Evaluating Live Traffic Note Care must be taken if the readings are taken from a DSX monitor jack with the RX INPUT key set to DSX MON. In that case, the isolation resistors will cause the level reading to be approximately –20 dB below the actual line level.

  • Page 54: Capturing And Displaying Dtmf Digits

    633/635 Users Manual 3-7. Capturing and Displaying DTMF Digits Network LINE LINE Bantam-to-Bantam Cable RX TX REF OFF ON 9VDC Top panel of the QuickBERT-T1 abn18f.eps Figure 3-2. Capturing and Displaying DTMF Digits To capture and display DTMF digits, proceed with the following steps: Turn the ON/OFF switch to On.

  • Page 55: Performing A Bit Error Rate Test (Bert) (Quick Bert-T1 Only)

    Operation Performing a BIT Error Rate Test (BERT) (Quick BERT-T1 only) 3-8. Performing a BIT Error Rate Test (BERT) (Quick BERT-T1 only) Network LINE LINE Bantam-to-Bantam Cables RX TX REF OFF ON 9VDC Top panel of the QuickBERT-T1 abn19f.eps Figure 3-3. Performing an Out-of-Service BERT The QuickBERT-T1 has the ability to perform two types of BERT: (1) an out- of-service BERT that allows one QuickBERT-T1 unit to send a loop code and then loop it back from the CSU (NIU), and (2) an end-to-end, out-of-service...
  • Page 56 633/635 Users Manual Press the TX LINE CODE key to select either AMI or B8ZS line coding to match the equipment being tested. Connect the test cord from the QuickBERT-T1 RX jack to the LINE OUT jack. Connect a test cord from the QuickBERT-T1 TX jack to the LINE IN jack.

  • Page 57: Performing Fractional T1 Bert

    Operation Performing Fractional T1 BERT Network LINE LINE Bantam-to-Bantam Bantam-to-Bantam Cables Cables RX TX REF OFF ON 9VDC RX TX REF OFF ON 9VDC Top panel of the QuickBERT-T1 Top panel of the QuickBERT-T1 abn20f.eps Figure 3-4. Performing an End-to End, Out-of-Service BERT 3-9.
  • Page 58 633/635 Users Manual To perform a Fractional T1 BERT using the transmit function (QuickBERT-T1 only), proceed with the following steps. Turn the ON/OFF switch to On. Select the appropriate channels. See section 2-38 for a description of the procedure used to select channels. Use the RX INPUT key to select TERM.

  • Page 59: Performing Clock-Slip Measurements

    Operation Performing Clock-Slip Measurements 3-10. Performing Clock-Slip Measurements Customer Premises Central Office Bantam-to-Bantam Cables ON 9VDC RED-CHARGING GREEN-CHARGED Top Panel of the QuickBERT-T1 abn21f.eps Figure 3-5. Clock-Slip Measurements In order to ensure proper network performance, clocks between various circuit elements must be synchronized. Clock-synchronization problems are a common occurrence when customer-premises equipment, such as PABXs and multiplexers, are connected to the public network.
  • Page 60 633/635 Users Manual is compared to the clock that is recovered from the DS1 signal transmitted from the customer side of the CSU. Turn the ON/OFF switch to ON. Insert a bantam-ended test cord into the Rx T1 receiver of the test set. Use the RX INPUT key to select DSX MON.

  • Page 61: Specifications

    Appendix A Specifications Introduction This section of the manual contains specifications for the QuickBERT-T1 and QuickCHECK-T1 test sets. Mechanical Specifications Table A-1 provides mechanical specifications for the QuickBERT-T1 and QuickCHECK-T1. Table A-1. Mechanical Specifications Characteristic Specification Enclosure Dimensions 1.75"H x 5"W x 9"D Weight 1 lb, 6 oz Connectors...
  • Page 62 635/633 Users Manual Electrical Specifications Table A-2 provides electrical specifications for the QuickBERT-T1 and QuickCHECK-T1. Table A-2. Electrical Specifications Characteristic Specification RX T1 Receiver Input Impedance Bridge > 1000 ohms Term = 100 ohms ± 5% Monitor = 100 ohms ± 5% Range Bridge = 6 to -36 dB Term = 6 to -36 dB...
  • Page 63 Appendices Specifications Table A-2. Electrical Specifications (cont) Characteristic Specification Ones Density (insufficient ones) <N ones in 8 (N + 1) bits, N = 1 to 23 per ANSI T1.403 Excess Zeros >15 consecutive zeros per ANSI T1.403 Excess Zeros >15 consecutive zeros per ANSI T1.403 Yellow Alarm D4: >255 consecutive DS0 channels with bit 2 = 0;...
  • Page 64 635/633 Users Manual Table A-2. Electrical Specifications (cont) Characteristic Specification Results Types clock slips, errors, signals Clock Slips positive number means reference clock faster; negative number means reference clock slower Errors BIT, BPV, FRAME, CRC, ERRORED SECONDS; maximum count: 2.8147E14 Signal DS1 FREQ, DS1 LEVEL, DS0 FREQ, DS0 LEVEL...

  • Page 65: Index

    Index —A— Error/Signal LEDs:DS1 LEVEL, 2-12 Excess Zeros, 2-30 Accessories, 1-9 EXCESS ZEROS, 2-30 AMI, 2-28 —F— —B— Frame LEDs, 2-33 B8ZS, 2-28 —H— Blue Alarm (AIS), 2-29 —C— Handling Precautions:Display:Environmental, CHANNEL UP/DOWN Keys, 2-20, 2-21 Controls:CHANNEL UP/DOWN Keys, —I— 2-20, 2-21 Controls:LOOP CODES Key, 2-16, 2-18 Indicators, 2-26...
  • Page 66 635/633 Users Manual Loop Codes, 2-16, 2-18 Rx Status/History LEDs:B8ZS, 2-28 LOOP CODES Key, 2-16, 2-18 Rx Status/History LEDs:BLUE Loop Codes:CSU, 2-18 ALARM(AIS), 2-29 Loop Codes:LINE, 2-18 Rx Status/History LEDs:DS1 IDLE Loop Codes:NIU4, 2-18 SIGNAL, 2-31 Loop Codes:NIU5, 2-18 Rx Status/History LEDs:PATTERN Loop Codes:NTWK, 2-18 SYNC LOSS, 2-31 Loop Codes:PYLD, 2-18, 2-19, 2-20...

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