Información sobre equipo

Wandel & Goltermann PCM-3 Communications Test Set
Fabricante:
Wandel & Goltermann
Modelo: PCM-3
Fecha: 1979
Categoría: Los instrumentos de medición
Grupo: Communications Test Set
Descripción:
Información:

Estos manuales están disponibles para el equipo anterior:

Tipo de Manual:: Manual del usuario Wandelgoltermann-8447-Manual-Page-1-Picture
Páginas:: 117
Tamaño:: 87.31 Mbytes (91555429 Bytes)
Idioma: Inglés
Revisión:
Número de identificación: 0.2.1 .80 2650 GN V . 2596
Fecha: 01 enero 1979
Calidad: Documento Scaneds, en parte leyendo mal, no parcialmente legible.
Añadir fecha:
MD5: c0c0abcae08eb6e92fc2688fda6c88a1
Descargas: 108 desde 21 enero 2017
Información:

Description and Operating Manual INTRODUCTION 1. SPECIFICATIONS ... 1-1 1.1. Operating function ... 1-1 1.2. Test object matching ... 1-1 1.3. Send signals ... 1-2 1 .4. Summary of measurement modes, level ranges and frequency ranges 1-4 1.5. Use as level Generator or as level meter ... 1-5 1 .6. Measurement modes and their error limits in the preferred range of relative level and for Generator terminated by Z and receiver fed by Z source = 0 ... 1-5 1.7. Attenuation characteristic of the filters ... 1-10 1.8. Additional inputs and outputs (rear side) ... 1-13 1.9. Measuring sequence ... 1-13 1.10. Additional devices ... 1-16 1.11. General data ... 1-18 1.12. Ordering information ... 1-20 2. OPERATION ... 2-5 2.1. Setting-up and putting into service ... 2-5 2.1.1. Setting-up the instrument ... 2-5 2.1.2. Operating controls ... 2-5 2.1.3. A.C. line connection ... 2-5 2.2. Prel iminary settings ... 2-6 2.2.1. Operating functions ... 2-6 2^2.2. Matching to the object under test ... 2-7 2.2.2. 1. Setting relative level ... 2-7 2.2.2.2. Generator output; output impedance ... 2-7 2.2.2.3. Receiver input/ input impedance ... 2-8 2.3. Test set-up and connection of objects under test ... 2-8 2.3.1. Loop measurements ... 2-8 2.3.2. End-to-end measurements ... 2-9 2.3.3. Separate measurement of the send or receive part of a PCM multiplex equipment ... 2-10 2.3.4. Measurements on a test object with digital interfaces . . . 2-11 2.3.5. Connection through the Test Point Scanner MU-3 ... 2-11 2.4. Measurement modes of the PCM-3 ... 2-12 2.4.1. Summary of measurement modes ... 2-13 2.4.2. Explanation of particular measurement modes ... 2-15 2.4.2.1. Overall loss ... 2-15 2.4.2.2. Attenuation/frequency distortion ... 2-16 2.4.2.3. Variation of gain with input level ... 2-16 2.4.2.4. Crosstalk ... 2-16 2.4.2.5. Impedance balance ratio ... 2-16 2.4.3. Measurement mode number ... 2-17 2.4.4. Single measurement and incremental step measurement . . . 2-17 2.4.5. Block measurement and measuring program ... 2-18 2.5. Data entry ... 2-18 2.5.1. Entry of a single measurement ... 2-19 2.5.1.1. Selection of measurement mode ... 2-19 2.5.1.2. Entry of send parameters ... 2-22 2.5.1.3. Run of single measurements ... 2-23 2.5.1.4. Measurement by incremental step ... 2-23 2.5.2. Entry of a block measurement ... 2-24 2.5.2.1. Selection of measurement mode ... 2-24 2.5.2.2. Indication of the send parameters and tolerance limits . . .2-25 2.5.2.3. Run of block measurements ... 2-25 2.5.3. Entry of a measuring program ... 2-26 2.5.3.1. Assembly of the program ... 2-26 2.5.3.2. Change of program,clear ... 2-27 2.5.3.3. Program configuration and execution ... 2-27 2.6. Measurement sequence conditions ... 2-31 2.6.1. Measurement run switch ... 2-31 2.6.2. Halt switch ... 2-31 2.6.3. Print release ... 2-32 2.7. Indicator area ... 2-33 2.7.1. Measurement run information ... 2-33 2.7.2. Measurement mode display ... 2-34 2.7.3. Send parameter display ... 2-34 2.7.3.1. Send level indicator ... 2-34 2.7.3.2. Send frequency indicator ... 2-35 2.7.3.3. Additional symbols ... 2-35 2.7.4. Measured result display ... 2-36 2.8. Rear connections ... 2-37 2.8.1. A.C. voltage output ... 2-37 2.8.2. Receiver input ... 2-37 2.9. Additional devices (Plug-in subassemblies) ... 2-38 2.9.1. Printer interface ... 2-38 2.9.2. lEC-Bus-interface ... 2-40 2.9.3. End-to-end and signal ling distortion measuring device . . .2-41 2.9.3.1. End-to-end measuring device ... 2-41 2.9.3.2. Signalling distortion measuring device ... .2-41 2.9.4. Interface for PDA-3, PDG-3, MU-3 ... 2-44 TECHNICAL INSTRUCTIONS ... 3-1 3.1 . Extension to the Automatic Measuring System PA-3 ... 3-1 3.1.1. Setting-up instruments and connecting cables ... 3-1 3.1.2. Instrument adjustments ... 3-1 3.1 .3. Measurement run and indication of results ... 3-5 3.1.4. Computer control ... 3-5 3.2. Characteristics of the Digital Signal Instruments PDA-3 and PDG-3 ... 3-5 3.2.1. PCM DigitaI SignaI Analyzer PDA-3 ... 3-6 3.2.2. PCM Digital Signal Generator PDG-3 ... 3-6 3.3. Consideration of CC ITT Recommendation G.712 as affecting PCM-3/PA-3 ... 3-7 3.3.1. Attenuation/frequency distortion ... 3-8 3.3.2. Variation of gain with input level ... 3-8 3.3.3. Measurement of idle channel noise ... 3-9 3.3.4. Total distortion, including quantizing distortion ... 3-10 3.3.5. Interchannel crosstalk ... 3-11 3.3.6. Go-to-return crosstalk or level in own channel ... 3-13 3.3.7. Impedance of audio input and output parts ... 3-14 3.3.8. Out-of-band signals at the channel input ... 3-14 3.3.9. Spurious out-of-band signals at the channel output ... 3-15 4. FUNCTION AND CHARACTERISTICS ... 4-3 4.1. Send section ... 4-3 4.2. Receive section ... 4-4 4.3. Digital section ... 4-7 4.4. End-to-end and signa I ling distortion measuring device . . . 4-10 5. FUNCTION CHECKING, MAINTENANCE AND GENERAL INFORMATION ... 5-1 5.1. Function checking ... 5-1 5.1.1. Short test of digital section ... 5-1 5.1.2. Short test of measuring section ... 5-1 5.1 .3. Further checks on measuring sections ... 5-2 5.1 .4. Operation of PCM-3 as level Generator only ... 5-3 5.1.5. Operation of PCM-3 as Level Meter only ... 5-4 5.1.6. Additional test modes ... 5-4 5.2. Maintenance and general information ... 5-5 5.2.1. Mechanical assembly ... 5-5 5.2.2. Insertion of Plug-In subassemblies ... 5-6 5.2.3. Changing the customer program memory ... 5-6 5.2.4. Conversion from dBm to dB calibration ... 5-6 5.2.5. Changing fuses ... 5-8 5.2.6. Modification of the measuring signal for signalling distortion . 5-8 5.2.7. Use in 19-inch racks ... 5-8 5.2.8. Shipping instructions ... 5-10 5.2.9. Matching to the V.24 Printer Interface ... 5-11 5.2.9.1 . Baud rate ... 5-12 5.2.9.2. Acknowledgements from the printer ... 5-12 5.2.9.3. Waiting (Standby) Time during "CR" and "LF" ... 5-12 5.2.9.4. Interface testing ... 5-13 5.2.9.5. Matching to special properties of a printer ... 5-13

Wandelgoltermann-8447-Manual-Page-1-Picture


Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics