Benutzeranleitung / Produktwartung 58502A des Produzenten Symmetricom
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097-585 02-01 Issue 1: Mar 00 Copyright © 2000 Symmetricom, Inc. All rights reserved. Printed in U.S.A. 58502A Broadband Distr ib ution Amplifier User’ s Guide.
This ma nual prov ides info rmation on the 5850 2A Broadband Dis tribution Amp lifier, includi ng performance tests, command refe rence, functional description, s ervice, an d specificati ons. For assistance, contact: Symmetricom, Inc. 2300 Orchard Parkw ay San Jose, CA 9513 1-1017 U.
Contents User ’s Guide iii In This Guide Guide Organization vii Descripti on of the 58502A Broadband Distribution Amplifier viii Overview viii Auto-Switc hing and Alarm-Inputs F eatures viii RS-232C.
Contents iv User ’s Guide 2 P erformance T ests Introduction 2-2 Operational V erificatio n 2-2 Pe r f o r m a n c e T e s t s 2 - 2 Calibrati on (Option 010 Only) 2-2 T est Record 2-2 Test Equipmen.
Contents User ’s Guide v Alarm Indicator 3-6 Input A and B Indicators 3-6 OUTPUT ST ATU S 1-12 Indic ators 3-6 Serial Interfac e Ports 3-7 RS-232 P ort 3-7 RS-232 P ort Configuration 3-7 Making Chan.
Contents vi User ’s Guid e 6S e r v i c e Introduction 6-2 Determining 58502A Fault Status 6-2 7 Specifications Introduction 7-2 Index.
User ’s Guide vii In This Guide This preface contai ns the following information: Guide Organization Table of C ontents Chapter 1, “ Getting Started ,” pro vides an over view of the 58502A Broadband Distr ibution Amplifi er’s indicato rs, connecto rs, inputs, and outputs.
In This Guide viii User ’s Guide Description of the 58502A Broadband Distributi on Amplifier Overview The 58502A is a 1- to-12 Broadband Di stribution Amplifier that is used to distrib ute precision sine wave signals from Cesium, Rubidium, quartz, or GPS frequenc y standards.
In This Guide User ’s Guide ix RS-232C Port and Indica tors Features Querying through the RS232 ser ial interfac e port an d viewing t he front-panel LEDs or indic ators facilitate monitoring the system.
In This Guide x User ’s Gui de.
1 Gettin g Starte d.
Chapter 1 Getting Star ted 58502A Broadband Di stributi on Amplifier at a Glance 1-2 User ’s Gui de 58502A Broa dband Distrib ution Amplifier at a Glance SYSTEM STATUS Power Alarm Input A Input B OU.
Chapter 1 Getting Started 58502A Broadband Di stributi on Amplifier at a Glance User ’s Guid e 1 -3 NOTE See Chapter 3, “Feat ures and Functi ons,” for a detai led discu ssion of the i tems desc ribed below. 1 When the Power ind icator lights , it indicate s that th e proper in put power is su pplied to the 58502 A.
Chapter 1 Getting Star ted Preparing t he Distributi on Amplifier for Use 1-4 User ’s Gui de Preparing the Distribution Amplifier for Use To Mount the 58502A Into an E quipment Rack (U sing Option AX4) 1 Position the 58502A on your work surf ace with the front panel faci ng you.
Chapter 1 Getting Star ted Connecting a T erminal or Computer to the 58502A User ’s Guid e 1 -5 To Connect AC Power The nominal ac input range is 100-132, 175-240 Vac, 47-63 Hz, 40 VA. The power module or jack senses the incoming voltage and automatically s elects t he proper setup.
Chapter 1 Getting Star ted Connecting a T erminal or Computer to the 58502A 1-6 User ’s Gui de to communicate via the RS-232 serial port . Most PCs contain a terminal emulatio n program, e specially PCs equi pped with Windows.
Chapter 1 Getting Star ted Connecting a T erminal or Computer to the 58502A User ’s Guid e 1 -7 To Configure Terminal C ommunications for NT 4.0 ® /Windows ® 95-Bas ed PC 1 In the NT (or Windows 95) main window, click the Start butt on then sele ct Programs .
Chapter 1 Getting Star ted Connecting a T erminal or Computer to the 58502A 1-8 User ’s Gui de To Configure Terminal C ommunications for Windows ® -Based PC 1 Select or double click on the Terminal icon (a picture of a PC with a telephone in fro nt of it) in the Accesso ries window.
Chapter 1 Getting Star ted Powering Up t he Distributi on Amplifier User ’s Guid e 1 -9 Powering Up the Distribution Amplifier Overview of the Power-Up Procedure (Wha t to Expect) When you power up .
Chapter 1 Getting Star ted Powering Up t he Distributi on Amplifier 1-10 User ’s Gui de Figure 1-3. Input s and Outputs Connections For Y our System (T erminal or PC is Optional ) HP 24542U, F1047-8.
Chapter 1 Getting Star ted Using Commands to Control Key Functi ons (Examples) User ’s Gui de 1-1 1 Using C ommands to C ontrol Key Fu nctions (Examples) Overview This section provid es you with specific program command examples that perf orm particular t asks.
Chapter 1 Getting Star ted Using Commands to Control Key Func tions (Examples) 1-12 User ’s Gui de Setup Commands for th e Different Distribu tion Applications Distributin g One Input Signal (A or B) To deter mine which inp ut channel is active: enter I NP:A:QUES? , an d press Retur n, or enter INP:B:QUES? , and press Ret urn.
Chapter 1 Getting Star ted Using Commands to Control Key Functi ons (Examples) User ’s Guid e 1 -13 T o Check the Input Channel Automatic Switching Status Enter INP:SEL:AUT O? , and pr ess Return. If 0 is returned, automa tic switching is disa bled.
Chapter 1 Getting Star ted Using Commands to Control Key Func tions (Examples) 1-14 User ’s Gui de Distributing of the Backup Oscillat or (Option 010) Signal Only Just app ly ac power to the 58 502A. After powerup, al low the o scillator to warm up for 5 minutes before using the signal.
Chapter 1 Getting Star ted Using Commands to Control Key Functi ons (Examples) User ’s Guid e 1 -15 T o Check Instrument Identifi cation Enter *IDN? , and press Return.
Chapter 1 Getting Star ted Using Commands to Control Key Func tions (Examples) 1-16 User ’s Gui de T o Set Baud Rat e, Pacing, Parity , and Dat a Bits To set the baud rate, for example, to 19200, enter SYST :COMM:SER:BAUD 19200 and press Return. To set p acing, f or example, to XON ent er SYST :COMM:SER:P ACE XON and press Return.
2 Performance Tests Verifying Specif ications.
Chapter 2 Performance T ests Introducti on 2-2 User ’s Gui de Introduction This chapter pr ovides proced ures to test the electr ical performance of the 58502A Dis tribution Ampli fier specif icatio.
Chapter 2 Performance T ests Introducti on User ’s Guid e 2 -3.
Chapter 2 Performance T ests T est Equipment Requir ed 2-4 User ’s Gui de Test Equi pment Required T able 2-1. Recommended T est Equipment Instrument Required Characte ristics Recomme nded Model Use.
Chapter 2 Performance T ests 58502A Opera tional V erification User ’s Guid e 2 -5 58502A Oper ationa l Verifica tion These following proc edures check the st andalone functional ity of the 58502A Broadband Distributio n Amplifier.
Chapter 2 Performance T ests 58502A Opera tional V erification 2-6 User ’s Gui de 3 Connect the equipment as shown i n Figure 2-1. ( Connect the Signal Generator outp ut to the 58502A’s input A or B rear- panel in put, and connect o scilloscope Channel 1 t o output 1 port of the 58502A.
Chapter 2 Performance T ests 58502A Opera tional V erification User ’s Guid e 2 -7 Alarm and Status Outpu t Verification 1 Connect the equipment as shown in Figure 2-2, using output 12 as the test outpu t. (Note that any one of the outp uts can be used for this alarm veri fication .
Chapter 2 Performance T ests 58502A Opera tional V erification 2-8 User ’s Gui de Figure 2-4. ALARM/ST A TUS Port If th e Alarm indica tor illumina tes and outp ut pins 2, 3, and 4 go low, then all as soc iate d ALARM/ST A TUS output c ircuitry is functional.
Chapter 2 Performance T ests 58502A Opera tional V erification User ’s Guid e 2 -9 RS-232 Verification (Opti onal) NOTE You may skip this verif ication if you do not pl an to use the RS 23 2 port. 1 Apply the proper power source to the rear -panel AC input jack of the Distributio n Amplifier.
Chapter 2 Performance T ests 58502A Opera tional V erification 2-10 User ’s Gui de 4 Set the RS-232 port of your PC to match t he following d efault val ues: If needed , see “ Connecting a Ter minal or Computer to the 5 8502A” starting on page 1-5 in Chapter 1 for informatio n on sett ing above paramete rs.
Chapter 2 Performance T ests 58502A Performance T ests User ’s Gui de 2-1 1 58502A Per formance Tests These tests verif y the specified elec trical perfo rmance of the 58502A Distributio n Amplifier. The tests do not requi re access to the inside of the instrument and do not test t ypical specifica tions or supple mentary characteri stics.
Chapter 2 Performance T ests 58502A Performance T ests 2-12 User ’s Gui de Test 1: +7 dBm Input L evel 1 Apply power to the 5 8502A and observe succes sful completion of self- test.
Chapter 2 Performance T ests 58502A Performance T ests User ’s Guid e 2 -13 Test 2: +15 dBm Inp ut Level 1 Using the s ame test setup (see Fig ure 2-6) and the RMS voltm eter sti ll set to 3V Full Scale Range, adjust t he signal gener ator to: LEVEL: +15 dBm 2 Verify that the RMS voltage on each of the twelve Output s is from 0.
Chapter 2 Performance T ests 58502A Performance T est Record (Page 1 of 2) 2-14 User ’s Gui de 58502A Per formance Test Record (Page 1 of 2) Model 585 02A Broadband Distribution Ampl ifier Serial Numb er:_______ ________ ______ ________ __ Repair/ Work Order No.
Chapter 2 Performance T ests 58502A Performance T est Record (Page 2 of 2) User ’s Guid e 2 -15 58502A Per formance Test Re cord (Page 2 of 2) 58502A Performance Tests (Continued) Input Level Re sponse Tests ( Continued) Test 2: +15 dBm Input Level Minimum Actual R eading (Output s 1 – 12) Maximum 0.
Chapter 2 Performance T ests 58502A Calibr ation (Option 010 Only) 2-16 User ’s Gui de 58502A Cali bration (Option 01 0 Only) This section provides procedure s to perform routine periodic calibration of the Option 010 Broadband Distribution Amplif ier.
Chapter 2 Performance T ests 58502A Calibr ation (Option 010 Only) User ’s Guid e 2 -17 Equipment • 10 MHz Primary Frequency or House Standard: HP 5071A (or equivalent) • Terminal or compute r (.
Chapter 2 Performance T ests 58502A Calibr ation (Option 010 Only) 2-18 User ’s Gui de Figure 2-7. 58502A Cali bration Setup 4 Observe Counter reading. If diff erence from 10 MHz is < 5 × 10 − 8 (0.5 Hz), t hen per form the “Software Oscillat or Adjustment” procedur e below.
Chapter 2 Performance T ests 58502A Calibr ation (Option 010 Only) User ’s Guid e 2 -19 2 Use the terminal and serial po rt to send one of the following SCPI commands to incremental ly adjust the EF.
Chapter 2 Performance T ests Calibration Re cord (Page 1 of 1) 2-20 User ’s Gui de Calibrati on Record (Pag e 1 of 1) Model 585 02A Option 010 Broadba nd Distribution Amplifier Serial Numb er: ________ ________ ______ _____ Repai r/Work Ord er No.
3 Features and Function s.
Chapter 3 Features and Functions Chapter Contents 3-2 User ’s Gui de Chapter Contents You will find that this chapter makes it easy to look up all the details about a particular feature of the 58502A Broadband Distribution Amplifier.
Chapter 3 Features and Functions Inputs User ’s Guid e 3 -3 Inputs AC Input This rear -panel ac power module o r jack sens es the incoming volt age and automatical ly selects t he proper setu p. The nominal ac input r ange is 100-132, 175-2 40 Vac, 47-63 Hz, 40 VA.
Chapter 3 Features and Functions Outputs 3-4 User ’s Gui de ALARM/STATUS Port Thi s DE -9P (m ale ) sub mi niat ure D connector or port allows you to monitor the status of the 58502A via pins 2, 3, and 4 (see Table 3-1).
Chapter 3 Features and Functi ons Outputs User ’s Guid e 3 -5 ALARM/STATUS Po rt Inputs The input pins (6 and 7) o f this port are shown in Figure 3-2. The input pins are a TTL high (3.5 Vdc, minimum) when operation is normal, and TTL low (1.5 Vdc, maximum) if there is an alarm.
Chapter 3 Features and Functions Indicator s 3-6 User ’s Gui de Indicators Power Indicator This indicator lights when the input power is supplied to the 58502A. The indicat or cannot b e set or queried via the seria l interface . Alarm Indicator This indicator lights when an alarm is detected in the distri bution system.
Chapter 3 Features and Functi ons Serial I nterface Por ts User ’s Guid e 3 -7 Serial Interface Ports RS-232 Port This 9-pin male subminiature D (DE-9P) rear- panel connector is a RS-232 DTE configuration serial int erface port. It allows serial interface connection to an external comput er for remote operat ions.
Chapter 3 Features and Functions Serial I nterface Por ts 3-8 User ’s Gui de Making Chan ges to the Serial Port Settings (If Need ed) CAUTION If you ch ange the seria l port set tings, your chan ges will be stored i n the 5 8502A. Cyclin g power w ill not reset to factor y defaults.
Chapter 3 Features and Functions Connecting a T erminal or Computer User ’s Guid e 3 -9 Issue the following queries to the serial port to verify its configurat ion.
Chapter 3 Features and Functions Connecting a T erminal or Computer 3-10 User ’s Gui de Figure 3-3. Connect ing a PC or T erminal to the 58502A HP 24542U, F1047-80002 or equivalent Interface cable (.
Chapter 3 Features and Functions Different W ays to Check Alarm Status User ’s Gui de 3-1 1 Different Ways to Check Alarm Status The 58502A pr ovides thre e ways to check its alarm s tatus: vi sually viewing the front-pa nel indicators, querying for status via the RS232 port, and mo nitoring the ALARM/ST A TUS port.
Chapter 3 Features and Functions Configuring th e Inputs 3-12 User ’s Gui de To Configure the Internal Oscillator as a Ba ckup (Option 010) Connect the input signal t o input A . Then connect the 58502A to ac power. The internal oscillator will provid e the sour ce signal f or the 58502A onl y if input A signal fails.
4 Command Reference.
Chapter 4 Command Reference Chapter Contents 4-2 User ’s Gui de Chapter Contents This chapte r provides a de scription for each command t hat can be used to operate the 58502 A Broadband Distributio n Amplifier. This chapt er is organized as follo ws: • SCPI Conformance page 4-3 – Command Syntax Con ventions page 4-3 – IEEE 488.
Chapter 4 Command Reference SCPI Conformance Informati on User ’s Guid e 4 -3 SCPI Conformance Information The Standard Command s for Programmable Instruments (SCPI) commands used in the 58502A are in conformance with the SCPI Standard Vers ion 1992.
Chapter 4 Command Reference 58502A Command Summary 4-4 User ’s Gui de 58502A Comma nd Summary Table 4-1 lists and briefly de fines all of t he commands that can be used to operate the 58502 A. T able 4-1. 5850 2A Command Sum mary Keyword/Syntax Parame ters Descrip tion *CLS C lears error queue.
Chapter 4 Command Reference 58502A Command Summary User ’s Guid e 4 -5 T able 4-1. 5850 2A Command Sum mary (Conti nued) Keyword/Syntax Pa ramete rs Desc ription INPut (Continued) INPUT S ubsystem (Continue d) :AU TO :AUTO? append 0 or OFF , or 1 or ON return s 0 or 1 Enable s or disabl es the automati c input switc hing featur e.
Chapter 4 Command Reference System Status Reporting Commands 4-6 User ’s Gui de System Sta tus Report ing Commands *CLS This command clears the error queue . ALARm? This query returns ala rm status of the 58502A. Returns a single character , 0 or 1.
Chapter 4 Command Reference System Status Reporting Commands User ’s Guid e 4 -7 OUTPut:QUEStionable[ :UNPacked]? This query retur ns the st atus on each output (l owest numbered output to hig hes t). Returns array of Boole an. 0 = signal at output; 1 = no signal at output.
Chapter 4 Command Reference Identificat ion Command 4-8 User ’s Gui de Identification Command *IDN? This query returns t he 58502A ident ification. A sequence of ASCII -encoded bytes: HEWLETT-PACKAR.
Chapter 4 Command Reference Internal Oscillator Calibrating and Status Commands ( Option 010 Only) User ’s Guid e 4 -9 Internal Oscillator Calibra ting and Status Commands (Option 01 0 Only) DIAGnostic:CALi bration:ROSCillat or:EFC:ABSolute UP | DOWN This command sets the absolute EFC (electronic f requency contr ol) of the osc illator.
Chapter 4 Command Reference Internal Oscillator Calibrating and Status Commands ( Option 010 Only) 4-10 User ’s Gui de [SOURce]:ROSCillator :W ARM? This query report s if the internal osci llator is warmed up. Returns a single character , 0 or 1. A value of 0 indicates osc illator is not warm.
Chapter 4 Command Reference Input Port Status and Setup Commands User ’s Gui de 4-1 1 Input Port Status and Setup Commands INPut:A:QUESti onable? This query report s if there is a signal pres ent on input A. Returns a single character , 0 or 1. A value of 0 indicates signal is present (not questionable) .
Chapter 4 Command Reference Input Port Status and Setup Commands 4-12 User ’s Gui de INPut:SELect? This query indicates whi ch input is selected as the sourc e input. Returns single charact er, A or B. INPut:SELect:AUT O 0 | 1 This command enables or disables the automat ic input switching feature.
Chapter 4 Command Reference Serial Inte rface Communicat ion Commands User ’s Guid e 4 -13 Serial Inter face Communic ation Commands SYST em:COMMunicate:SERial:BAUD <numeric_value> This command s ets the baud rate of the RS-232 port. The possible baud rate values that can be entered are 1200, 2400, 9600, or 19200.
Chapter 4 Command Reference Serial Inte rface Communicat ion Commands 4-14 User ’s Gui de SYST em:COMMunicate:SERial:FDUPlex? This query returns t he duplex s tate of the RS-232 port . Returns a single character , 0 or 1. A value of 0 indicates echo is OFF; a value of 1 indicates echo is ON.
5 Functional Description.
Chapter 5 Functional Description Introducti on 5-2 User ’s Gui de Introduction This chapter gives a simplified functio nal descripti on of the 58502A Broadband Distributio n Amplifier. The 58502A pro vides twelve-channel is olation and distr ibution for a input timing signal, which frequency can range from 100 kHz to 10 MHz.
Chapter 5 Functional Description Functional Block Descript ion of the 585 02A User ’s Guid e 5 -3 Functional Block Description of the 58502A The 58502A electronic cir cuits consist of five primary b.
Chapter 5 Functional Description Functional Block Descript ion of the 585 02A 5-4 User ’s Gui de Controller Block This block provides remote ins trument management via commands transfer red through the RS-232 serial por t.
Chapter 5 Functional Description Functional Block Descript ion of the 585 02A User ’s Guid e 5 -5 1-to-12 Amplifiers and Isol ators Block This block consists of twelve separate individual isolatio n.
Chapter 5 Functional Description Functional Block Descript ion of the 585 02A 5-6 User ’s Gui de.
6 Service.
Chapter 6 Service Introducti on 6-2 User ’s Gui de Introduction This chapter pr ovides the informati on required to deter mine if the 58502A Broadband Distributio n Amplifier i s faulty. Determ ining 5 8502A Fault Stat us Use the following pr ocedure to determine f ault stat us of t he 58502A Distri bution Amplifier .
7 Specif ications.
Chapter 7 Specifi cations Introducti on 7-2 User ’s Gui de Introduction This chapter pr ovides electri cal specification s and supplemental characteri stics for the 58502 A Broadband Distr ibution Amplifier . Electrical speci fications des cribe the instrument’s warranted performance .
Chapter 7 Specific ations Introducti on User ’s Guid e 7 -3 Electrical Spe cifications Input, A or B Frequency Rang e: 0.1 MHz to 10 MHz Impedance: 50 Ω nominal SWR < 1.
Chapter 7 Specifi cations Introducti on 7-4 User ’s Gui de.
User ’s Guide Index-1 Index SYSTEem COMMunicate SERial1 BAUD? , 4-13 SYSTem COMMunicate BAUD? , 4-13 BITS? , 4-13 FDUPle x? , 4- 14 PACE? , 4-1 4 PARity? , 4-1 4 SERial BAUD , 4-1 3 FDUPle x? , 4- 1.
Index Index-2 User ’s Gui de SYSTem:COMMunicate:SERial:BAUD , 4-13 SYSTem:COMMunicate:SERial:BAUD ? , 4-13 SYSTem:COMM unicate:SERial:BIT S? , 4-13 SYSTem:COMM unicate:SERial:FD UP lex , 4-13 SYSTem.
Index User ’s Guide Index-3 Input B indicator , 1-3 input ch anne l , 4-5 input channe ls , viii Inpu t Leve l Resp onse Test , 2-11 input ports , viii inpu t A , viii inpu t A , 3-3 Input A indicat.
Index Index-4 User ’s Gui de RS-232 port factory default values , 3-7 setting , 1-7 , 1-8 RS-232 serial in terface port , 1- 3 RS232C interfac e , 4-13 , 4-14 RS-232C parameters , 3-7 Rubidium , vii.
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Wenn Sie Symmetricom 58502A noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für Symmetricom 58502A - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von Symmetricom 58502A reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über Symmetricom 58502A erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon Symmetricom 58502A besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von Symmetricom 58502A verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit Symmetricom 58502A. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei Symmetricom 58502A gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
