1. Manuals
  2. Brands
  3. AMERITEC Manuals
  4. Test Equipment
  5. AM8a
  6. Test procedure

AMERITEC AM8a Test Procedure

Pcm/vf call analyzer
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
AM8a PCM/VF Call Analyzer
Test Procedure Guide
Addendum to
AM8a Instruction Manual
www.valuetronics.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AM8a and is the answer not in the manual?

Questions and answers

Related Manuals for AMERITEC AM8a

Summary of Contents for AMERITEC AM8a

  • Page 1 AM8a PCM/VF Call Analyzer Test Procedure Guide Addendum to AM8a Instruction Manual www.valuetronics.com...
  • Page 2 AM8A PCM/VF CALL ANALYZER Test Procedure Guide Addendum to Am8a Instruction Manual June 1996 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 For extra copies of this manual order P/N 18-0133 ©...

  • Page 3: Table Of Contents

    INTRODUCTION This Test Procedure Guide provides summarized information about the setup and operation of the AM8a PCM/VF Call Analyzer. It consists of General Information on the operation of the unit and Application Notes. This Test Procedure Guide can be ordered separately as Part Number 18-0133. It is also included at the end of AM8a PCM/VF Call Analyzer Instruction Manuals (18- 0037).
  • Page 4 AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 THE ON/OFF SECTION ....................3 INPUT........................3 TIMS ........................3 TALK ........................3 AUTO........................3 FUNCTION KEYS AND STATUS LEDs ...............4 SEIZE........................4 START........................4 RING........................4 REV (Reverse) ......................4 STORE/RECALL OF AM8a PARAMETERS..............4 APPLICATION NOTE #1: CUSTOM CALLING FEATURES USING THE AUDODIAL FIELD..................5...
  • Page 5 AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 APPLICATION NOTE #5: DS1/T1 SIGNAL MONITORING .........18 SETUP PROCEDURES ....................18 PARAMETER CHANGES..................19 METER DISPLAY (A/B BIT STATES, SPAN ERRORS, ETC.) ........19 A/B SIGNALING .....................20 APPLICATION NOTE #6: ORIGINATING OR TERMINATING A DS/T1 CALL ................21 SETUP PROCEDURES ....................21...

  • Page 6: General Information

    GENERAL INFORMATION This section provides general information about the front panel of the Ameritec AM8a Test Set. Topics are limited to the location and function of switches, keys, LEDs, and displays used for controlling the unit and indicating its operational status.

  • Page 7: Start-Up And Default Settings

    INPUT selection switch to ON. SHIFT KEY The SHIFT key is located to the left of the bantam input jacks of the AM8a. This key allows the AM8a to use one key for several different functions. When the SHIFT key is not illuminated (off), the function of the keys will be written in black/white.

  • Page 8: The Setup Section

    This menu is only used to set up user-defined error thresholds for any signaling event whether it be wink timing, digit analysis, tone analysis, etc. This menu does not affect the AM8a’s ability to decode any event — only whether that event is to be considered in violation of preset thresholds.

  • Page 9: The Display Section

    FUNCTION KEYS AND STATUS LEDs In the center of the AM8a front panel, there reside 4 function keys labeled SEIZE, START, RING (SEND TONE) and REV. These keys provide manual control (on/off) of these functions and are described briefly below: * SEIZE - Controls On Hook and Off Hook state of circuit under test.

  • Page 10: Rev (Reverse)

    Custom Calling Features Using the Autodial Field The following example illustrates how the AM8a can be configured to simulate a conference call over the Sprint network by programming a complex dial sequence into the AM8a’s autodial field. Through the front panel keypad an operator can dial any sequence of digits and events either manually or automatically and store up to 10 of these sequences in the autodial section for later recall.
  • Page 11 This example shows the sequence of events used to test the conference calling feature on a switch utilizing the Sprint network: Power up the AM8a and wait 3 seconds for self test to complete. Press [SHIFT], [8] to enter autodial section.

  • Page 12: Start Signal

    The AM8a is now ready to originate a call. Press [SHIFT], [1] so that the AM8a will display the call. Press [SHIFT], [KP] to toggle the INPUT LED on. This connects the AM8a to the circuit under test.
  • Page 13 AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 Press [SHIFT], [AUTO] to toggle the AUTODIAL LED on. The AM8a will now dial upon the detection of the proper start signal, in this case, a wink. Make sure the autodial number you programmed earlier is still displayed in the SETUP: AUTODIAL section if the AM8a does not outpulse.

  • Page 14: Setup Procedures

    AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 SETUP PROCEDURES Power up the AM8a and wait 3 seconds for self test to complete. Press [SHIFT], [5] to enter the SETUP: CONFIGURATION menu. Press the MENU keys until the display shows: INPUT...

  • Page 15: Important Note

    Locate the monitor jack for the other direction (LED above DSX MON JACK will be blinking) and connect the RX for PCM2 to it. c. At this point, ABCD signaling bit LEDs on AM8a front panel should stop scrolling indicating frame synchronization has been established.
  • Page 16 AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 TX/2W PCM2 PCM1 TRUNK INPUTS LOOP TIMS CAUTION: 10 VOLTS MAX 860 Ω 860 Ω Network Equipment Network Equipment Using the A/B bit display, identify either an idle timeslot or the timeslot you are interested in dropping out.

  • Page 17: Configure Dialed Digits And Dial Type

    Press the FIELD and VALUE keys until the display shows: MODE emulate The AM8a is now working in a drop and insert mode of operation for an E&M circuit. For other types of circuits, it would be necessary to select those values in the SETUP: CONFIGURATION menu.

  • Page 18: Drop And Insert Test

    (18-0133) Addendum to 18-0037 DROP AND INSERT TEST The AM8a is now ready to originate a call. Press [SHIFT], [1] so that the AM8a will display the call. To originate a call, Press the SEIZE key. The AM8a will automatically outpulse the digit sequence selected in the SETUP: AUTODIAL menu.

  • Page 19: Application Note #3: Direct Inward Dial (Did)/911

    This application note will explain the procedure for emulating the customer terminal with the AM8a. This allows for DID/911 turn-ups to occur without the need for customer equipment to be in the picture. The user can now know if the circuit will work before the customer is hooked up and the service is delivered, eliminating turn up problems and allowing for quick and error free service to be delivered.

  • Page 20: Trunk Type

    If pulse dialing is not desirable, press the value keys until DTMF is selected. OPERATION Press [SHIFT], [1] so that the AM8a will display the call. Press [SHIFT], [KP] to toggle the INPUT LED on. This connects the AM8a to the circuit under test.

  • Page 21: And Data Link Analysis

    T1 span line errors, SLC® Datalink and Alarm information, signaling activity and channel level impairments. SETUP PROCEDURES Power up the AM8a and wait 3 seconds for self test to complete. Press [SHIFT], [5] to enter the SETUP: CONFIGURATION menu. Press the MENU keys until the display shows:...

  • Page 22: View Span Results And Alarm Conditions

    Single party is selected for loop start trunks for Mode I and Mode II. If ground start is desirable, press the value keys until “universal vg” is selected. Connect the AM8a’s PCM1 RX jack to the DSX monitor jack coming from the central office equipment. (PCM1 RX must always be connected to the timing source).
  • Page 23 AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 June 28, 1996...

  • Page 24: View Signaling Events (Digits, Tones, Seizures)

    MODE II OPERATION The AM8a can also be configured to monitor MODE II (Concentrated) types of calls. This type of operation involves having 48 subscribers (channels) vying for 24 available timeslots. In addition to performing its usual analysis, the AM8a can also perform channel to timeslot mapping and a detailed analysis of the 4 kb datalink messaging.
  • Page 25 “0” values to a “1” value. It is suggested that the user disable the “idle” messages as they will quickly overrun the AM8a’s display buffer and thus prevent the user from capturing those messages of special interest.

  • Page 26: Application Note #5: Ds1/T1 Signal Monitoring

    DS1/T1 Signal Monitoring This application note describes the capabilities of the Ameritec Model AM8a PCM/VF Call Analyzer to perform T1 signal monitor testing. The AM8a provides a variety of non-intrusive PCM digital tests including transmission errors, frame synchronization, signaling bit status and channel noise measurements. The unit is also equipped with a digital dual multimeter for measuring level, frequency and amplitude on selected channels and the span itself.

  • Page 27: Setup Procedures

    (18-0133) Addendum to 18-0037 Upon power-up, the AM8a will default to monitoring a T1 with E&M signaling. The framing is set to D3/D4 and channel 1 has already been selected for monitoring. This application note will help step the user through any changes necessary for configuring the AM8a for circuits other than the AM8a’s default state.

  • Page 28: Parameter Changes

    Locate the monitor jack for the other direction (LED above DSX MON JACK will be blinking) and connect the TX for PCM1 to it. c. At this point, ABCD signaling bit LEDs on the AM8a front panel should stop scrolling indicating frame synchronization has been established.

  • Page 29: Meter Display (A/B Bit States, Span Errors, Etc.)

    AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 METER DISPLAY (A/B BIT STATES, SPAN ERRORS, ETC.) All T1 span measurements such as slips, frame errors, level, etc. are displayed in the Meter Section. To access these results: Press [SHIFT], [2] to enter the Meter Display.

  • Page 30: Application Note #6: Originating

    • • • • • • RX A B • • • • • • If the AM8a is not in a valid mode for this display, dots will appear in all bit positions. APPLICATION NOTE #6 Originating or Terminating a DS/T1 Call The following example illustrates how the AM8a can be configured to originate or terminate a call on one channel of a T1.
  • Page 31 (18-0133) Addendum to 18-0037 To originate a call, the AM8a will only dial if the IMITATE field is set to “te/line”. The only exception to this operation is for E&M circuits which can dial regardless of setting since E&M circuits are symmetrical in design.

  • Page 32: Operation

    Immediate, Delay or Dial tone. Note: MF(R1) is normally used on E&M trunks and pulse/DTMF are normally used on loop and ground trunks. Dialing digits on a channel can be accomplished on the AM8a either by using the AUTO DIAL mode or by dialing manually from the keypad.

  • Page 33: Terminating An Inbound Call

    LEDs will indicate channel conditions. Also the status LEDs will show the trunk selection, whether the unit is emulating switch or terminal/line and if the PCM1 or PCM2 jacks on the AM8a has been selected. Press [SHIFT], [AUTO] to automatically enable the auto dial feature if desirable.

  • Page 34: And Exception Reporting

    APPLICATION NOTE #7 Digit Analysis and Exception Reporting The following example illustrates how the AM8a monitors dialed digits and reports exceptions based on preset thresholds. Exceptions can be shown via both the display and printout. This application note assumes the user has already configured the AM8a for proper trunk type, start signal, etc.

  • Page 35: Configuring Analyze Thresholds

    AM8a Test Procedure Guide (18-0133) Addendum to 18-0037 Press the MENU keys until the display shows: BAUD RATE PARITY CR DELAY 9600 none Press the FIELD and VALUE keys to select the appropriate values that match your printer settings. CONFIGURING ANALYZE THRESHOLDS Press [SHIFT], [7] to enter ANALYZE menu.

  • Page 36: Operation

    The GUARD field is important because it is used to determine the minimum on-time that a digit must be present before the AM8a will analyze it. Any event shorter than the GUARD time will be ignored by the AM8a regardless of how any other parameter is programmed.

  • Page 37: Displaying Exceptions

    (18-0133) Addendum to 18-0037 DISPLAYING EXCEPTIONS To display exceptions on hard-copy printout, connect the AM8a's RS232 port to a serial ASCII printer. As errored calls are detected, the information will print out automatically to the printer based on those settings configured in this application note.
  • Page 38 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...

Table of Contents