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AMERITECH AM5 Instruction Manual

Wideband transmission test set
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MODEL AM5/AM5e
Classic
WIDEBAND
TRANSMISSION TEST SET
INSTRUCTION MANUAL

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Summary of Contents for AMERITECH AM5

  • Page 1 MODEL AM5/AM5e Classic WIDEBAND TRANSMISSION TEST SET INSTRUCTION MANUAL...
  • Page 2 MODEL AM5/AM5e Classic WIDEBAND TRANSMISSION TEST SET INSTRUCTION MANUAL May 1997 Technical Data Subject to Change without Notice 760 Arrow Grand Circle Covina, CA 91722 USA TEL 626.915.5441 FAX 626.915.7181 www.ameritec.com Test Complete ISO 9001 Certified Company For extra copies of this manual, order Part No.
  • Page 3 AM5(e) Classic Instruction Manual (18-0047) Record of Revisions RECORD OF REVISIONS March, 1993 Original Issue August, 1993 Corrections on page 3-5. December, 1993 Corrections on page 4-7, 10-3. April, 1994 Major update June, 1994 Added INDEX October, 1994 Major update...

  • Page 4: November

    (18-0047) DESCRIPTION CAUTION When using the padded carrying case for the AM5 or AM5e Classic (P/N 87-0070C), DO NOT PLACE the power cord around the side of the case in the manner demonstrated in Figure 1. Instead, be certain to WIND THE CORD UNDER THE CASING in the Area between the feet, as shown in Figure 2.

  • Page 5: November

    AM5(e) Classic Instruction Manual (18-0047) INTRODUCTION ORGANIZATION OF MANUAL OVERVIEW/UNPACKING describes the models of the AM5 and SECTION 1 — AM5e Classic that are available and provides guidance for proper unpacking and inspection of the unit. POWER CONSIDERATIONS describes the commercial power SECTION 2 —...
  • Page 6 Included in the description are all parameters that may be changed for each signaling requirement. AM5/AM5e CLASSIC TECHNICAL SPECIFICATIONS provides a SECTION 10 — tabular listing of the specifications for the AM5 Classic and the AM5e Classic. WARRANTY AND SERVICE POLICY provides information on SECTION 11 —...

  • Page 7: Table Of Contents

    AM5(e) Classic Instruction Manual (18-0047) TABLE OF CONTENTS TABLE OF CONTENTS CAUTION ........INSIDE OF FRONT COVER SECTION 1 —...
  • Page 8 AM5(e) Classic Instruction Manual (18-0047) TABLE OF CONTENTS 3.3.17 FILTER (left key) ........3–11 NOTE .
  • Page 9 NOTE ......... 5 – 1 BLOCK DIAGRAMS OF AM5 AND AM5E CLASSIC ... 5 – 2 5.2.1 LINE 4W selection .
  • Page 10 AM5(e) Classic Instruction Manual (18-0047) TABLE OF CONTENTS TEST CONFIGURATIONS ........5 – 8 NOTE .
  • Page 11 SIGNALLING FREQUENCY SKIP (SF SKIP) ....9 – 8 9.5.1 SF SKIP Rejection for AM5 Classic ..... . 9 – 8 9.5.2 SF SKIP Rejection for AM5e Classic .
  • Page 12 AM5(e) Classic Instruction Manual (18-0047) TABLE OF CONTENTS A.1.3 CALIBRATION PROCEDURE ....... A1 – 1 A.1.4 VALIDATION PROCEDURE .
  • Page 13 Figure 3-3 — Level (dB/dBm) and Noise (dBrn ) Units of Measurement ..3 – 7 Figure 3-4 — AM5(e) Classic Rear Panel Drawing ......3–16 Figure 5-1 —...

  • Page 14: Section 1 - Overview And Unpacking

    Line Test Connections, Rechargeable batteries for cordless portable operation, a snap- on cover, and a rack-mounting kit for permanent installations. The 200 kHz Model of both the AM5 Classic and AM5e Classic extends the maximum frequency response measurement and generation from 120 kHz to 200 kHz.

  • Page 15: Section 2 - Power Considerations

    Section 3, sub-sections 3.3.1. and 3.4.1. All models of the AM5(e) Classic are powered from commercial 115 V AC or 230 V AC 50/60 Hz power, and have a power consumption of 26 Watts (VA). A rear-panel selector switch selects 115 V AC or 230 V AC.

  • Page 16: Section 3 - Physical And Functional Description

    3.1.4 Construction: The front panel (with switch and indicators labels appropriate for the AM5 Classic or AM5e Classic ) and a black, steel rear panel are attached to a sturdy aluminum case. Within the case, electronic components are mounted on three plug-in printed circuit boards, interconnected with ribbon cables.

  • Page 17: Figure 3-1 - Am5 Classic Front Panel

    AM5(e) Classic Instruction Manual (18-0047) DESCRIPTION Figure 3-1 — AM5 Classic Front Panel (Sheet 1 of 2) Figure 3-2 — AM5e Classic Front Panel (Sheet 1 of 2) November 19, 1997 Page 3-2...
  • Page 18 AM5(e) Classic Instruction Manual (18-0047) DESCRIPTION Figure 3-1 — AM5 Classic Front Panel (Sheet 2 of 2) Figure 3-2 — AM5e Classic Front Panel (Sheet 2 of 2) November 19, 1997 Page 3-3...
  • Page 19 AM5(e) Classic Instruction Manual (18-0047) DESCRIPTION For the AM5(e) Classic models that have extended frequency response, the following designation plate appears on the lower-left side of the panel: 200 kHz The front panel contains push-button switches, LED indicators, and LED displays for setting test conditions and displaying measurements.

  • Page 20: Caution

    (18-0047) DESCRIPTION 3.3.1 ON OFF Button (power switch): CAUTION: Before connecting the AM5(e) Classic to AC Power , be sure that the selector switch is in the correct position. For more details refer to 3.4.1. Push the button IN to turn power ON. Push the button again and the button will pop out to turn power OFF.

  • Page 21: Monitor (Tx, Meas, Rx) Switch

    AM5(e) Classic Instruction Manual (18-0047) DESCRIPTION 3.3.7 MONITOR (TX, MEAS, RX) switch: This three position switch selects the circuit point where the internal amplifier/speaker is connected: 3.3.8 Speaker Volume Control: After the MONITOR switch has been used to select the monitor point, the Volume control can be turned clockwise to increase the speaker volume and counter-clockwise to decrease the volume.

  • Page 22: Figure 3-3 - Level (Db/Dbm) And Noise (Dbrn) Units Of Measurement

    AM5(e) Classic Instruction Manual (18-0047) DESCRIPTION Figure 3-3 - Level (db/dbm) and Noise (dBrn) Units of measurement November 19, 1997 Page 3-7...

  • Page 23: Right-Hand 7-Segment Display

    AM5(e) Classic Instruction Manual (18-0047) DESCRIPTION 3.1.7 Right-Hand 7-Segment Display: This is a red LED display containing four 7-segment characters with floating decimal point display. These characters will indicate values for the SEND or MEASURE frequency, time, or impulse noise count selections in accordance with the LED indicators to the right of the display (Refer to 3.3.13).
  • Page 24 AM5(e) Classic Instruction Manual (18-0047) DESCRIPTION November 19, 1997 Page 3-9...

  • Page 25: Start/Stop Key (Impulse Noise Measurement)

    Selection is by rotation and is indicated by the lighting of the LED adjacent to the abbreviation for the measurement. Measurements are always made from a signal source coming into the AM5(e) Classic (RX for 4-wire lines, or TX/2W for 2-wire lines). The following table identifies the measurements, indicates units of measurement, and whether there are parameters.

  • Page 26: Am5(E) Classic Instruction Manual

    (in addition to Voice Frequencies) on the line could give false readings. Filters are described in detail in Section 7 for the AM5 Classic, and in Section 8 for the AM5e Classic.

  • Page 27: Note

    ON. SF skip prevents any tones from being sent in the SF signaling range (2450 - 2750 Hz for AM5 Classic; 2130 - 2430 Hz for AM5e Classic). This skip prevents interference with other equipment while making tests.

  • Page 28: Tx/2W (Right Key)

    • ON HOOK (OFF HOOK not lighted) is the default. 3.3.24 RX (left key): This key selects, in rotation, the impedance of the input of the AM5(e) Classic for MEASURE functions at the RX (and rear-panel T1 and R1 terminals) when the LINE selector (3.3.27) is set to 4W.

  • Page 29: Line Key

    3.3.28 DIAL key: This key selects, in rotation, the DIAL and MEAS(ure) functions. When DIAL is selected, the TX/2W jack is directly connected to the DIAL terminals on the front panel and all internal AM5(e) Classic circuitry is disconnected. When MEAS(ure) is selected, the DIAL terminals are disconnected and the internal AM5(e) Classic circuitry is connected.

  • Page 30: Rear Panel

    DESCRIPTION REAR PANEL The rear panel of the AM5(e) Classic is shown in Figure 3-4. The AC power supply assembly is mounted on the right side of the rear panel. It has a CCE standard V-type connector for the power cord, a fuse holder for the replaceable 1/2 Ampere fuse, and a selector switch for 115 V AC or 230 V AC.operation.

  • Page 31: 3.4.5 Screw Terminal, Ground

    Optional Rear-Panel Self-Test CAUTION Connections • • VERIFY PROPER VOLTAGE SELECTION BEFORE CONNECTING POWER use 1/2A fuse (Sleeves) (TX/2W) (RX) Location of Fuse Holder Power Cord Connection Figure 3-4 — AM5(e) Classic Rear Panel Drawing November 19, 1997 Page 3-16...

  • Page 32: Optional Factory-Installed Equipment

    3.5.3 Model 30-0033XT Signaling Adapter with Ring Generator: This is an adapter unit which is attached to the clips on the left- and right-front sides of the AM5(e) Classic . The Signaling Adapter provides Loop Start, Ground Start, DID, and Types I, II, and III E &...

  • Page 33: 3.6 Accessories

    3.6.2 Protective front panel (85-0078): This is a plastic cover which is designed to fit over the front panel of the AM5(e) Classic . It clips to the slots on either side of the front panel bezel and protects the front panel from damage.

  • Page 34: Section 4 - Self Test And Calibration

    It also identifies the “factory default” settings and provides a calibration procedure. SELF TEST CONFIGURATION Self tests are performed with the AM5(e) Classic looped back on itself and not connected to any external equipment. Signals sent through the transmit (TX/2W) jack are routed directly back to the Receive (RX) jack through a Bantam Cable (48-0047) plugged into these jacks.

  • Page 35: Parameter Settings At Power Turn-On

    AM5(e) Classic Instruction Manual (18-0047) SELF TEST and CALIBRATION 4.3.2 Parameter Settings at Power Turn-on: Many of the functions have parameters that may be changed for a specific test setup. More detail on the settings of parameters and measurements are described in Sections 6 and 9 that describe MEASURE and SEND, respectively.

  • Page 36: Note

    Except for IMPulse NOISE measurements, the left display will be a level in dB, dBm, or dBrn (AM5 Classic only). The right display will be a frequency in kHz. NOTE: If the level is too low (or nothing is connected) “UndR” will be displayed in the left window, and the right window will be blank..

  • Page 37: Loopback Tests

    This sub-section contains some basic procedures for verifying the operation of the AM5(e) Classic. In these procedures, those steps identified as “(df)” do not have to be performed if the factory defaults are in effect, as indicated by the LED display described in the step.
  • Page 38 The most that should be heard is hiss from the internal electronics of the AM5(e) Classic since SEND is set to QUIET. Turn volume control back to about 1/8 turn from full counter-clockwise limit before starting the next test.

  • Page 39: Send 1004 Hz Test

    • Green HOLD TONE LED will be lighted beside left display. • For AM5 — Left display will read less than 40.0 with dBrn lighted. • For AM5e – Left display will read less than –50.0 with dBm lighted. •...

  • Page 40: Calibration Procedure

    NOTE: If a problem is found in any of the checkouts or the Calibration Procedure contact Ameritec Customer service. See Section 11, Warranty. CALIBRATION PROCEDURE The AM5(e) Classic was calibrated at the Factory for proper measurement accuracy by loading preset values into its internal RAM. RAM is maintained by a small internal battery.
  • Page 41 AM5(e) Classic Instruction Manual (18-0047) SELF TEST and CALIBRATION 4.6.3 Calibration Procedure: This procedure may be performed at any time to bring up the calibration function. If power has just been turned on, the display at step 4 will already have appeared.
  • Page 42 AM5(e) Classic Instruction Manual (18-0047) SELF TEST and CALIBRATION 10. Press key again to accept the reading and display the self calibration prompt. 11. Disconnect the voltmeter, then press the key to start the self- calibration process. • MEASURE will automatically go to L/F 15 kHz (L/F UNWTD on AM5e Classic ) and the appropriate LED will be lighted.

  • Page 43: Line Cables

    LINE CABLES Figure 5-1 shows the line cables which may be ordered as accessories for the AM5(e) Classic. The bantam plug on any of the cables plugs into either the TX/2W or RX jack. The bantam or the PL310 plug on the other end of the 48-0047 or 48-0048 cables can be plugged into jacks at the Central Office or other connectorized equipment.

  • Page 44: Line 4W Selection

    Circuitry shown for LINE 4W Position. In 4W REVerse position T and R are exchanged with T1 and R1. Figure 5–2 — 4-Wire Line Circuit Block Diagram FUNCTIONAL DIAGRAMS OF AM5(e) CLASSIC Figures 5-2 and 5-3 are Block Diagrams of the 4-Wire and 2-Wire line terminating circuitry.

  • Page 45: Line 2W Selection

    RX jack is routed to the DIAL terminals). A circuit connected to the jack is only terminated by an instrument connected to the DIAL terminals. Terminals are labelled “TIP” and “RING” for an AM5 DIAL Classic (shown at right) and “A” and “B” for an AM5e Classic.

  • Page 46: Rx Off Hook Selection

    AM5(e) Classic Instruction Manual (18-0047) LINE FUNCTIONS 5.2.6 TX/2W 135 , 150 , 600 , 900 , 1200 selections: The SEND impedances are selected by the left 1200 TX/2W front-panel switch, and the corresponding LEDs are lighted for each impedance selection.

  • Page 47: Send Quiet Selection

    15kHz WIDE characteristics. Refer to Section 7 for filters supplied with the AM5 Classic and Section 8 for filters supplied 3kHz 50kBit with the AM5e Classic. NOTE: These filters are only switched into the circuitry...

  • Page 48: Measure Ntg Selection

    LEVEL circuitry. FREQ The frequency measurement circuitry is disconnected, and only noise in dBrn (for AM5 Classic) or dBm (for AM5e Classic) is displayed. (The right display reads MEA SUR E “NTG–”). The ground connection must be made to the (AM5 Classic) equipment ground for NTG measurements.

  • Page 49: Line Termination Impedances

    (see 5.2.8). The terminations provided by the AM5(e) Classic are resistive for AC and open-circuit for DC. However, for some types of 2-Wire lines, a series capacitance may be inserted into the circuit through the LINE 2W 2µf selection.

  • Page 50: End-To-End Testing

    Western Electric Model 829 or an Ameritec AM3-4A Responder. (Responders can do additional tests as described in 5.4.3). The AM5(e) Classic at the near end sends (from the TX/2W jack) a signal into the November 19, 1997 Page 5-8...

  • Page 51: 4-Wire Testing With Responder

    RX jack to the RCV pair. Ground the sleeves (or ground terminal) to the CO ground if Noise-to-Ground tests are required. 2. Turn off SF SKIP, if lighted, then send a brief 2713 Hz tone from the AM5 Classic. (If a different loopback frequency is required, set the QUIET mode parameter for F4 to that frequency before sending the tone.) This will activate...

  • Page 52: 2-Wire Testing With Responder

    (Automatic Milliwatt Test Line) or AM3-2A (DTMF Commandable 2-Wire Responder) can be dialed up over the network by connecting an external handset to the DIAL terminals of the AM5(e) Classic and selecting the DIAL connection. Figure 5-6 (shows a 2-Wire network with responders and AM5(e) Classic units at strategic locations.

  • Page 53: Figure 5-6 - 2-Wire Testing With Responders

    In addition to the AM3-2C functions, the AM3-2A can also be used to perform far-to- near gain slope and near-to-far level tests. In near-to-far tests the responder receives a tone from the AM5(e) Classic. Results are then transmitted as a frequency deviation of a returned signal. This can be observed at the AM5(e) Classic.

  • Page 54: Section 6 - Measure Functions And Parameters

    MEASURE key (bottom to top, left to right). Unless otherwise specified, the descriptions apply to both the AM5 Classic and the AM5e Classic. Views of the LED indicators and displays showing typical readings are provided. A lighted LED is shown by shading, as shown by above defaults.

  • Page 55: Measure Level And Frequency (Level Freq)

    AM5(e) Classic Instruction Manual (18-0047) MEASURE FUNCTIONS LEVEL MEASURE LEVEL AND FREQUENCY (LEVEL FREQ) FREQ To measure level and frequency, an auto-ranging amplifier, average detector, and frequency counter are connected to the signal. A 120 kHz low-pass filter is used for full bandwidth operation.
  • Page 56 The dBrn measurement is designed to present a 0 reading for an optimally quiet line (-90 dBm) and is determined by the formula dBrn = dBm + 90. A –40 dBm noise level would read 50 dBrn on an AM5 Classic as below: SEND...

  • Page 57: Units Of Noise Measurement

    The tone is removed in the measuring circuit of the AM5(e) Classic through a 1010 Hz notch filter, then the residual noise is measured. Both level and frequency displays operate when this function is selected. (See 6.3 for units of noise measurement).

  • Page 58: Test Setup For Notch Noise

    When the responder answers, send the appropriate code to put it into the “send 1004 Hz” mode. For loopback tests, one AM5(e) Classic is used. The SEND selection is 1004 Hz and the MEASURE selection is NOISE W/T.

  • Page 59: Test Setup For Ntg

    6.5.3 Noise Weighting Filters: The default filter selection is usually used for NTG measurements (CMSG for the AM5; PSHO for the AM5e Classic). Other filters may be selected by the left FILTER key to “weight” the measurement over the band of frequencies that is important for the circuit. Filters are described in detail in Sections 7 and 8.

  • Page 60: Signal-To-Noise Ratio Measurements

    AM5(e) Classic Instruction Manual (18-0047) MEASURE FUNCTIONS 6.6.1 Signal-to-Noise Ratio Measurements: The range of the S/N Ratio measurements is 10 to 50 dB with accuracy as follows: • 10 to 40 dB at ±1 dB • 40 to 45 dB at ±2 dB •...

  • Page 61: Test Setup For S/N Ratio

    When the responder answers, send the appropriate code to put it into the “send 1004 Hz” mode. For loopback tests, one AM5(e) Classic is used. The SEND selection is 1004 Hz and the MEASURE selection is NOISE W/T.

  • Page 62: Impulse Noise Measurements, Parameters, And Procedure

    AM5(e) Classic Instruction Manual (18-0047) MEASURE FUNCTIONS Without a blanking interval, several counts could be made immediately after the first pulse, due to secondary pulses caused by ringing. (For more explanation and a graphic representation, refer to 6.7.3). After the parameters are set, the measurement display must be selected.

  • Page 63: Figure 6–1 — Impulse Noise Measurement Selection/Displays

    AM5e LED & received 0 level reading. of arrows mSEC PRESS TO START OR STOP NOISE TEST (IMP NOISE or AM5 LED & received 0 level reading. IMP N W/T) LED flashes Noise reading for very quiet line. while test is running.

  • Page 64: Figure 6-2 - Impulse Noise Parameters Selection/Display

    AM5e LED and default value value. mSEC To change any single digit of parameter, press the left-arrow key then use the AM5 LED and default value up- or down-arrow keys in the flashing-digit mode. DO NOT CHANGE PARAMETERS WHILE TEST IS RUNNING...

  • Page 65: Evaluation Of Measurement Data

    NOTE: For Impulse Noise with Tone test, “no TonE” will be displayed and test will not start if hold tone is not being received by the AM5(e) Classic To observe the measurements while the test is running, press up- or down-arrow key until the desired measurement is displayed.

  • Page 66: Figure 6-3 - Illustration Of Impulse Noise Measurement

    (e.g: iLo - iMid = iLo abs ; iMid - IHi = iMid abs ) Parameters Final bLnC Measurements 76 dBrn -14 dBm idLT 72 dBrn iMid -18 dBm dBrn is for AM5 Classic 68 dBrn -22 dBm dBm is for AM5e Classic iTHd 68.0 –22.0 noiS always measured 015.0 TiMe 015.0 START...

  • Page 67: Test Setup For Impulse Noise Without Tone

    (refer to sub-section 3.3.29). When the responder answers, send the appropriate code to put it into the “send 1004 Hz” mode. For loopback tests, one AM5(e) Classic is used. The SEND selection is 1004 Hz and the MEASURE selection is IMP NOISE W/T.

  • Page 68: Noise Weighting Filters

    This Section describes the filters that are supplied with the AM5 3kHz 50kBit Classic. Except for the 60 Hz filter, which is common to the AM5 and the AM5e Classic, the filters described comply with the IEEE 743-1984 Standards and are used for noise measurements described in Section 6 (sub-sections 6.3 through 6.7).

  • Page 69: Figure 7-1 - Cmsg Bandwidth Filter (Cmsg)

    AM5(e) Classic Instruction Manual (18-0047) AM5 CLASSIC FILTERS 50 60 500 600 1000 1500 2000 3000 4000 5000 2/15/93 CMSG Filter FREQUENCY CMSG WEIGHTING CHARACTERISTIC Frequency Design Loss Frequency Design Loss (Hz) (dB) & Tolerance (Hz) (dB) & Tolerance ± 2 dB ±...

  • Page 70: Figure 7-2 - Program Bandpass Filter

    AM5(e) Classic Instruction Manual (18-0047) AM5 CLASSIC FILTERS – 10 – 5 02/15/93 300 400 600 800 1K 8K 10K FREQUENCY kHz Program Weighting PROGRAM WEIGHTING CHARACTERISTIC Frequency Design Loss Frequency Design Loss (Hz) (dB) & Tolerance (Hz) (dB) & Tolerance ±...

  • Page 71: Figure 7-3 - 3 Khz Low Pass Filter (3 Khz)

    AM5(e) Classic Instruction Manual (18-0047) AM5 CLASSIC FILTERS – 10 – 5 2/16/93 300 400 600 800 1K 8K 10K FREQUENCY kHz 3 kHz Lo Pass 3 kHz WEIGHTING CHARACTERISTIC Frequency Design Loss Frequency Design Loss (Hz) (dB) (Hz) (dB) 6000 12.3...

  • Page 72: Figure 7-4 - 15 Khz Low Pass Filter (15 Khz)

    AM5(e) Classic Instruction Manual (18-0047) AM5 CLASSIC FILTERS 100K 40 60 80100 4K 6K 8K 10K 40K 60K 15 kHz Flat Characteristic FREQUENCY (Hz) 15 kHz FLAT CHARACTERISTIC Frequency Design Loss Frequency Design Loss (Hz) (dB) (Hz) (dB) 1000 (Ref) 30000 12.3...

  • Page 73: Figure 7-5 - 50 Kilobit Filter (50 Kbit)

    AM5(e) Classic Instruction Manual (18-0047) AM5 CLASSIC FILTERS 2/13/93 22:10 40 60 80100 4K 6K 8K 10K 40K 60K 50 Kilobit Weighting Noise Characteristic FREQUENCY (Hz) 50 KILOBIT WEIGHTING CHARACTERISTIC Frequency Design Loss Frequency Design Loss (Hz) (dB) & Tolerance (Hz) (dB) &...

  • Page 74: Figure 7-6 - Wideband 120 Khz Filter

    400 600 800 1 K 2 K 10 K 20 K 40 K60 K80 K 100K 200K 400K800K 160 KHz Noise Wideband FREQUENCY (Hz) Figure 7–7 — Wideband 160 kHz Filter (WIDE — AM5-200 Model) November 19, 1997 Page 7-7...

  • Page 75: 60 Hz Filter

    AM5(e) Classic Instruction Manual (18-0047) AM5 CLASSIC FILTERS 60 Hz FILTER The 60 Hz high-pass filter is provided to eliminate frequencies of 60 Hz or lower. Power line interference due to 60 Hz, 50 Hz or lower components may cause erratic readings on the display.

  • Page 76: Section 8 - Ccitt Noise Weighting Filters For Am5E Classic

    This Section describes the filters that are supplied with the AM5e 2kHz SWTD Q PEAK Classic. Except for the 60 Hz filter, which is common to the AM5 SWTD and the AM5e Classic, the filters described comply with CCITT UNWTD...

  • Page 77: Figure 8-1 - Psophometric Filter (Psho)

    AM5(e) Classic Instruction Manual (18–0047) AM5e CLASSIC FILTERS – 10 – 20 – 30 – 40 – 50 – 60 – 70 0.04 0.06 0.08 0.1 0.3 0.4 0.5 0.6 0.8 1 Frequency in kHz 2/26/93 PSOPHOMETRIC WEIGHTING CHARACTERISTIC Frequency...

  • Page 78: Figure 8-2 - Sound Unweighted Filter (Unwtd Q-Peak/Unwtd Rms)

    AM5(e) Classic Instruction Manual (18–0047) AM5e CLASSIC FILTERS + 0,5 dB 1 1 1 1 0 0 0 0 – 0,5 dB – 6 – 10 – 20 – 30 – 40 – 50 – 60 – 70 10 2...

  • Page 79: Figure 8-3 - Sound Weighted Filter (Swtd Q-Peak/Swtd Rms)

    AM5(e) Classic Instruction Manual (18–0047) AM5e CLASSIC FILTERS – 4 – 8 – 12 – 16 – 20 – 24 – 28 – 32 – 36 – 40 – 44 – 48 10 2 10 2 10 2 CCITT – 15680...

  • Page 80: Figure 8-4 - 2 Khz Flat Filter (2 Khz Flat)

    AM5(e) Classic Instruction Manual (18–0047) AM5e CLASSIC FILTERS – 10 – 20 – 30 – 40 – 50 400 600 800 1000 3 K 4 K 6 K 8 K 10 K Frequency (Hz) 2 kHz FLAT WEIGHTING CHARACTERISTIC Frequency...

  • Page 81: Figure 8-5 - Wideband 120 Khz Filter (Wide -Am5E-120 Model)

    AM5(e) Classic Instruction Manual (18–0047) AM5e CLASSIC FILTERS 2/25/93 400 600 0 8 0 10 K 20 K 40 K 60 K 80 K100K 200K 400K800K 120 KHz Noise Wideband FREQUENCY (Hz) Figure 8–5 — Wideband 120 kHz Filter (WIDE —AM5e-120 Model)

  • Page 82: 60 Hz Filter

    AM5(e) Classic Instruction Manual (18–0047) AM5e CLASSIC FILTERS 60 Hz FILTER The 60 Hz high-pass filter is provided to eliminate frequencies of 60 Hz or lower. Power line interference due to 60 Hz, 50 Hz or lower components may cause erratic readings on the display.

  • Page 83: Section 9 — Send Functions And Parameters

    SEND keys. Unless otherwise specified, the descriptions apply to both the AM5 Classic and the AM5e Classic. Views of the LED indicators and displays showing typical readings are provided. A lighted LED is shown by shading, as shown by above defaults.

  • Page 84: No-Signal, Terminated (Quiet)

    Figure 9–1 — Send QUIET Data Display 9.1.2 QUIET Parameters: The QUIET parameter displays and default values (for an AM5 Classic) are shown in Figure 9–2. To select the parameters, press the PARAMeter SELect key. Each press of the key will display another parameter.

  • Page 85: 1004 Hz Tone (1004 Hz)

    PARAMeter SELect key. This function is useful for tests which require that a hold tone be sent to a remotely- located AM5(e) Classic. The level should be set so that at least –40 dBm is received at the remote-end.

  • Page 86: 1004 Hz Data Display

    The Variable Frequency generator can be selected to send out any frequency within the range of the AM5(e) unit. This generator is very flexible and may be adjusted while a signal is being sent. Both level (LEVL) and FREQuency may be set.

  • Page 87: Figure 9-3 - Send 1004 Hz Data And Parameter Displays

    AM5(e) Classic Instruction Manual (18-0047) SEND FUNCTIONS Display of 1004 Hz level and frequency unless Press to select parameter the LEVeL parameter is selected. SEND PARAM d B r n MEAS mSEC DISPLAY HOLD TONE Selects flashing mode. Increase or decrease value.

  • Page 88: Sweep Generator (Sweep)

    999.9 Frequency NOTE: The finest resolution of sweep rate and delay is .24 seconds (based on change over frequency) Due to this fact, the AM5(e) Classic will round the entered value to the nearest 0.24 second November 19, 1997 Page 9-6...

  • Page 89: Figure 9-5 - Send Sweep Data And Parameter Display

    AM5(e) Classic Instruction Manual (18-0047) SEND FUNCTIONS Parameter changes take effect as soon as they are made. If a start or stop frequency is set within the SF SKIP rejection band (see 9.5), the start or stop frequency will be moved to the lower or upper frequency limit of the rejection band (depending on which is closest) when SF SKIP is turned on.

  • Page 90: Signalling Frequency Skip (Sf Skip)

    When SF SKIP is ON, the SWEEP generator start or stop frequencies cannot be set (or remain) within the rejection band. If the SWEEP range includes the SF SKIP rejection band, those frequencies will not be output. The rejection band is different for the AM5 and AM5e Classic.

  • Page 91: Section 10 - Am5 And Am5E Classic Specifications

    SPECIFICATIONS AM5 and AM5e CLASSIC SPECIFICATIONS This Section consists of the specifications for all models of the AM5 Classic. It is in a tabular format (beginning on Page 10-2) , and should be consulted for an overview of each model’s capabilities. A left arrow (“ <———”) indicates specifications identical to previous columns.
  • Page 92 AM5(e) Classic Instruction Manual (18-0047) SPECIFICATIONS Technical Specifications (Sheet 1 of 5) AM5/AM5e TRANSMITTER LEVEL/FREQUENCY Classic-200 Specification AM5 Classic-120 AM5e Classic-120 Models VAR Hz Mode 20Hz to 20Hz to 120kHz 200kHz in 10Hz or <——— in 10Hz or 100Hz steps...
  • Page 93 AM5(e) Classic Instruction Manual (18-0047) SPECIFICATIONS Technical Specifications (Sheet 2 of 5) RECEIVER LEVEL/FREQUENCY Specification AM5 Classic-120 AM5/AM5e Classic-200 Specification AM5 Classic-120 AM5e Classic-120 Models Level Range –64.9 to +13dBm < 20 Hz 200 Hz 20 kHz 150 kHz 200 kHz +10dBm —...
  • Page 94 AM5(e) Classic Instruction Manual (18-0047) SPECIFICATIONS Technical Specifications (Sheet 3 of 5) AM5/AM5e IDLE LINE NOISE Classic-200 AM5e Classic-120 Models Specification AM5 Classic-120 Transmitter QUIET termination <——— <——— Receiver Range 10 to 99dBrn –80 to +9dBm (20 to 99dBrn (–70 to +9dBm <———...
  • Page 95 AM5(e) Classic Instruction Manual (18-0047) SPECIFICATIONS Technical Specifications (Sheet 4 of 5) AM5/AM5e SIGNAL TO NOISE RATIO Classic-200 AM5e Classic-120 Models Specification AM5 Classic-120 Transmitter QUIET termination <——— <——— Receiver Signal Range –40 to +10dBm <——— <——— Noise Range 10 to 70dBrn –80 to –20dBm...
  • Page 96 AM5(e) Classic Instruction Manual (18-0047) SPECIFICATIONS Technical Specifications (Sheet 5 of 5) AM5/AM5e GENERAL SPECIFICATIONS Classic-200 Specification AM5 Classic-120 AM5e Classic-120 Models Input 4-Wire 4-Wire Reverse <——— <——— 2-Wire 2-Wire with 2.16 µf Termination Receive 135 Ω, 150 Ω, Impedance 600 Ω, 900 Ω,...

  • Page 97: 11.1 Warranty

    AM5 (e) Classic Instruction Manual (18-0047) WARRANTY, SERVICE AND CALIBRATION WARRANTY, SERVICE AND CALIBRATION 11.1 WARRANTY AMERITEC Corporation warrants that its electronic instrument products are manufactured to the highest commercial standards and are free from any defects in material or workmanship.

  • Page 98: Return Of Unit

    AM5 (e) Classic Instruction Manual (18-0047) WARRANTY, SERVICE AND CALIBRATION 11.4 RETURN OF UNIT In the event of a malfunction, call or write to the AMERITEC factory and obtain a return authorization number. Return the unit to AMERITEC freight prepaid with a note (in-warranty...

  • Page 99: A.1.1. Scope

    TRANSMIT AND RECEIVE CALIBRATION 1. Remove all input leads. 2. Connect T1 and R1 leads of the AM5- Classic of either the front right bantam jack or rear terminal screws to the AC Voltmeter. 3. Set the voltmeter to measure AC voltage.
  • Page 100 10. After V9 is entered, display will be blank on the left and read “CAL?” on the right. 11. Disconnect the AC voltmeter leads from the AM5-Classic being calibrated. Press [ENTER] key. The unit will begin to calibrate itself. This process takes approximately 4 minutes.

  • Page 101: November 19, 1997

    600 ohm load resistor 3. Set the voltmeter to measure AC voltage. 4. Program the AM5-Classic to 4W, 600 Ohm Term and transmit 1004 Hz at different levels. Read AC voltage on the Voltmeter and make sure readings correspond to the values below:...
  • Page 102 AM5(e) Classic Instruction Manual (18-0047) APPENDIX 5. Refer to the Self-Test Instructions in the User Manual, Ameritec Part No. 18- 0047, to verify proper operation of the unit. If the unit fails Calibration, Validation of Calibration, or the Self Test Instructions twice, the unit should be sent to Ameritec for repair.

  • Page 103: Index

    AM5(e) Classic I I I I n n n n s s s s t t t t r r r r u u u u c c c c t t t t i i i i o o...
  • Page 104 AM5(e) Classic I I I I n n n n s s s s t t t t r r r r u u u u c c c c t t t t i i i i o o...
  • Page 105 AM5(e) Classic I I I I n n n n s s s s t t t t r r r r u u u u c c c c t t t t i i i i o o...

  • Page 106: Loop Back Tone

    AM5(e) Classic I I I I n n n n s s s s t t t t r r r r u u u u c c c c t t t t i i i i o o...
  • Page 107 AM5(e) Classic I I I I n n n n s s s s t t t t r r r r u u u u c c c c t t t t i i i i o o...
  • Page 108 ....... . 3–1 (WIDE — AM5-200 Model) ... . . 7–7 Western Electric Model 829 Responder .
  • Page 109 Ameritec is dedicated to serving the worldwide telecommunications community by providing competitively priced, state-of-the-art test equipment that is supported by the finest in marketing, engineering development and customer service. 760 Arrow Grand Circle Covina, CA 91722 USA TEL 626.915.5441 FAX 626.915.7181 www.ameritec.com...

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