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Cisco Systems VG204 Bedienungsanleitung

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Ähnliche Gebrauchsanleitungen

Richtige Gebrauchsanleitung

Die Vorschriften verpflichten den Verkäufer zur Übertragung der Gebrauchsanleitung Cisco Systems VG204 an den Erwerber, zusammen mit der Ware. Eine fehlende Anleitung oder falsche Informationen, die dem Verbraucher übertragen werden, bilden eine Grundlage für eine Reklamation aufgrund Unstimmigkeit des Geräts mit dem Vertrag. Rechtsmäßig lässt man das Anfügen einer Gebrauchsanleitung in anderer Form als Papierform zu, was letztens sehr oft genutzt wird, indem man eine grafische oder elektronische Anleitung von Cisco Systems VG204, sowie Anleitungsvideos für Nutzer beifügt. Die Bedingung ist, dass ihre Form leserlich und verständlich ist.

Was ist eine Gebrauchsanleitung?

Das Wort kommt vom lateinischen „instructio”, d.h. ordnen. Demnach kann man in der Anleitung Cisco Systems VG204 die Beschreibung der Etappen der Vorgehensweisen finden. Das Ziel der Anleitung ist die Belehrung, Vereinfachung des Starts, der Nutzung des Geräts oder auch der Ausführung bestimmter Tätigkeiten. Die Anleitung ist eine Sammlung von Informationen über ein Gegenstand/eine Dienstleistung, ein Hinweis.

Leider widmen nicht viele Nutzer ihre Zeit der Gebrauchsanleitung Cisco Systems VG204. Eine gute Gebrauchsanleitung erlaubt nicht nur eine Reihe zusätzlicher Funktionen des gekauften Geräts kennenzulernen, sondern hilft dabei viele Fehler zu vermeiden.

Was sollte also eine ideale Gebrauchsanleitung beinhalten?

Die Gebrauchsanleitung Cisco Systems VG204 sollte vor allem folgendes enthalten:
- Informationen über technische Daten des Geräts Cisco Systems VG204
- Den Namen des Produzenten und das Produktionsjahr des Geräts Cisco Systems VG204
- Grundsätze der Bedienung, Regulierung und Wartung des Geräts Cisco Systems VG204
- Sicherheitszeichen und Zertifikate, die die Übereinstimmung mit entsprechenden Normen bestätigen

Warum lesen wir keine Gebrauchsanleitungen?

Der Grund dafür ist die fehlende Zeit und die Sicherheit, was die bestimmten Funktionen der gekauften Geräte angeht. Leider ist das Anschließen und Starten von Cisco Systems VG204 zu wenig. Eine Anleitung beinhaltet eine Reihe von Hinweisen bezüglich bestimmter Funktionen, Sicherheitsgrundsätze, Wartungsarten (sogar das, welche Mittel man benutzen sollte), eventueller Fehler von Cisco Systems VG204 und Lösungsarten für Probleme, die während der Nutzung auftreten könnten. Immerhin kann man in der Gebrauchsanleitung die Kontaktnummer zum Service Cisco Systems finden, wenn die vorgeschlagenen Lösungen nicht wirksam sind. Aktuell erfreuen sich Anleitungen in Form von interessanten Animationen oder Videoanleitungen an Popularität, die den Nutzer besser ansprechen als eine Broschüre. Diese Art von Anleitung gibt garantiert, dass der Nutzer sich das ganze Video anschaut, ohne die spezifizierten und komplizierten technischen Beschreibungen von Cisco Systems VG204 zu überspringen, wie es bei der Papierform passiert.

Warum sollte man Gebrauchsanleitungen lesen?

In der Gebrauchsanleitung finden wir vor allem die Antwort über den Bau sowie die Möglichkeiten des Geräts Cisco Systems VG204, über die Nutzung bestimmter Accessoires und eine Reihe von Informationen, die erlauben, jegliche Funktionen und Bequemlichkeiten zu nutzen.

Nach dem gelungenen Kauf des Geräts, sollte man einige Zeit für das Kennenlernen jedes Teils der Anleitung von Cisco Systems VG204 widmen. Aktuell sind sie genau vorbereitet oder übersetzt, damit sie nicht nur verständlich für die Nutzer sind, aber auch ihre grundliegende Hilfs-Informations-Funktion erfüllen.

Inhaltsverzeichnis der Gebrauchsanleitungen

  • Seite 1

    Americas Headquarters Cisco Systems, In c. 170 West Tasman Drive San Jose, CA 951 34-1706 USA http://www.ci sco.com Tel: 408 526-4000 800 553-NETS (638 7) Fax: 408 527-0883 Cisco V G202, Cisco V G202XM, Cisco V G204, and Cisco V G204XM V oice Gate w a ys Hardw are Installation Guide Text Part Number: OL -15959-01[...]

  • Seite 2

    THE SPECIFICATION S AND INFORMATION REGARDING TH E PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITH OUT NOTICE. ALL STATEMENTS , INFORMATION, AND RECOMMENDATI ONS IN THI S MANUAL ARE BE LIEVED TO BE A CCURATE BUT ARE PRESENTED WI THOUT WARRANTY OF ANY KIND, EX PRESS OR IMPLIED. USERS MUST TAKE FULL RESPO NSIBILITY FOR THEIR APPLICATION OF ANY PRO[...]

  • Seite 3

    iii Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Hardware Installation Guide OL-15959-01 CONTENTS Preface v Audience v Documentation Conventions v Accessibility vi Related Documentation vi Obtaining Documentation and Submitting a Serv ice Request vii Safety Warnings vii Warning Definition vii CHAPTER 1 Overview of the C[...]

  • Seite 4

    Contents iv Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Temperature Contro l 2-2 Ventilation for Wall Mounting 2-2 Ventilation for Desktop Mounting 2-2 Distance Limitations for Interface Cables 2-2 Fast Ethernet Maximum Distance 2-3 FXS Analog Voice Port Maximum Distance 2-3 In[...]

  • Seite 5

    v Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Preface • Audience, p age v • Documentation Co n ven tions, page v • Accessibility , page vi • Related Documentati on, page vi • Obtaining Documentati on and Submitting a Service Requ est, page vii • Safety W arnings , p[...]

  • Seite 6

    vi Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Note Means reader take note . Notes contain helpful suggestions or references to mat erials not contained in this publicatio n. T imesaver Me ans the described action saves time . Y ou can sa ve time b y performing the acti on desc[...]

  • Seite 7

    vii Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 • Cisco VG202, Cisco VG202XM, Cisco VG 204, and Cisco VG204XM V oice Gateways Softwar e Confi gurati on Guide • Re gulatory Compli ance and Safety Information for th e Cisco VG202, Cisco VG202XM, Cisco VG204, and Ci sco VG204X[...]

  • Seite 8

    viii Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 this publication, see the translat ed safety warnings that accomp anied this device. Statement 1071 SA VE THESE INSTRUCTIONS Waarschuwing BELANGRIJKE VEILIGHEIDSINSTRUCTIES Dit waarschuwingssymbool betekent gevaar . U verk eert i[...]

  • Seite 9

    ix Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Advarsel VIKTIGE SIKKERHETSINSTRUKSJONER Dette varselssymbolet betyr fare. Du be finner deg i en situasjon som ka n forårsake personskade. Før du utfører arbeid med utstyret, bør du være oppmerksom på farene som er forbundet [...]

  • Seite 10

    x Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Avi s o INSTRUÇÕES IMPORT ANTES DE SEGURANÇA Este símbolo de aviso significa perigo. V ocê se enc ontra em um a situação em que há risco de lesões corporais. Antes de trabalhar com qua lquer equipam ento, esteja ciente dos [...]

  • Seite 11

    xi Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Advarsel VIGTIGE SIKKERHEDSANVISNINGER Dette advarselssymbol bet yder fare. Du befinder dig i en situatio n med risiko for legemesbeskadigelse. Før du begynder arbejde på udstyr , skal du være opmærksom på de involverede risic[...]

  • Seite 12

    xii Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 War ni ng Only trained and qualified personnel sh ould be allowed to install, replace, or service this equipmen t. Statement 1030 War ni ng Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink [...]

  • Seite 13

    xiii Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 War ni n g Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. Statement 1036 War ni n g Never touch uninsulated telephone wires or terminals unless the telephone line has be[...]

  • Seite 14

    xiv Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01[...]

  • Seite 15

    CH A P T E R 1-1 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 1 Overview of the Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways • Overvie w , page 1-1 • Physical Descript ion, page 1-2 • Port Numbering Con ventions, page 1-6 • Interfaces and Ser[...]

  • Seite 16

    1-2 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 1 Overview of the Cisco VG202, Cisc o VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Physical Description Note The Cisco VG202, Cisco V G202XM, Cisco V G204, and Cisco V G204XM v oice gate ways are fix ed-configura[...]

  • Seite 17

    1-3 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 1 Overview of th e Cisco VG202, Cisco VG202XM, Cisco VG 204, and Cisco VG204XM Voice Gateways Physical Description Figure 1 -2 Cisco V G204 Chassis Front P ane l Back Panel Description The Cisco VG202 voice gateway support[...]

  • Seite 18

    1-4 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 1 Overview of the Cisco VG202, Cisc o VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Physical Description Note The Cisco VG204 and the Cisco V G204XM chassi s are identical. The onl y difference is th e model numbe[...]

  • Seite 19

    1-5 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 1 Overview of th e Cisco VG202, Cisco VG202XM, Cisco VG 204, and Cisco VG204XM Voice Gateways Physical Description Figur e 1 -5 Cisco V G 204 Chassis LEDs Ta b l e 1 - 1 describes the status of each LED on the Cisco VG202,[...]

  • Seite 20

    1-6 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 1 Overview of the Cisco VG202, Cisc o VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Port Numbering Conven tions Figur e 1 -6 Serial Number Loca tion on Cisco V G202, Cisco V G202XM, Cisco V G 204, and Cisco V G204[...]

  • Seite 21

    1-7 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 1 Overview of th e Cisco VG202, Cisco VG202XM, Cisco VG 204, and Cisco VG204XM Voice Gateways Software Elements Ta b l e 1 - 3 lists the interf ace options that are a v ailable for the Cisco VG202, Cisco V G202XM, Cisco VG[...]

  • Seite 22

    1-8 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 1 Overview of the Cisco VG202, Cisc o VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Memory • Remotely , with a conn ection through the seri al port • Through T elnet and TFTP Memory The Cisco VG202, Cisco V G2[...]

  • Seite 23

    1-9 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 1 Overview of th e Cisco VG202, Cisco VG202XM, Cisco VG 204, and Cisco VG204XM Voice Gateways Voice Gateway Deployment War ni n g This unit is intend ed for installation in restricted access are as. A restricted access are[...]

  • Seite 24

    1-10 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 1 Overview of the Cisco VG202, Cisc o VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Voice Gateway Deplo yment Figur e 1 -7 T ypical Deployment of a Cisco V G202, Cisco V G202XM, Cisco V G204, or Cisco V G204XM V [...]

  • Seite 25

    CH A P T E R 2-1 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 2 Planning Your Installation • Location and Mountin g Requirements, page 2-1 • Distance Limitations for Interf ace Cables, page 2-2 Location and Mounting Requirements • About Mounting Locati on Requirements, pag[...]

  • Seite 26

    2-2 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 2 Planning Yo ur Installation Distance Limitations fo r Interface Cables Power Source War ni ng Do not work on the sy stem or connect or disconnect ca bles during periods of lightning activity . Statement 1001 War ni ng Re[...]

  • Seite 27

    2-3 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 2 Plann ing Your Installation Distance Limitation s for Interface Cables • FXS Analog V oice Port Maximum Distance, page 2-3 • Interference Considerations, page 2-3 Fast Ethernet Maximum Distance The maximum segmen t d[...]

  • Seite 28

    2-4 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 2 Planning Yo ur Installation Distance Limitations fo r Interface Cables[...]

  • Seite 29

    CH A P T E R 3-1 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 3 Installing the Voice Gateway • Safety Recommendations, page 3-1 • Site Log, page 3-3 • Installation Checklist, p age 3-3 • Mounting T ools and Equipment, page 3-4 • Unpacking and Inspection, p age 3-4 • [...]

  • Seite 30

    3-2 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 3 Installing the Voic e Gateway Safety Re commendations War ni ng This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260. Incorrectly connecting this equipment to a general-purpose o[...]

  • Seite 31

    3-3 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 3 Inst alling the Vo ice Ga teway Site Log • Connect the clip to the ESD-strap co nnection jack (to the left o f the po wer switch on the back of the chassis) or to an unpainted chassis frame surface. Caution For safety [...]

  • Seite 32

    3-4 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 3 Installing the Voic e Gateway Mounting Too ls and Equipm ent Mounting Tools and Equipment Obtain the follo wing tools and parts to install your v oice gate way: • Scre ws and anchors for mounting th e chassis on the wa[...]

  • Seite 33

    3-5 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 3 Inst alling the Vo ice Ga teway Mounting the Cha ssis onto a Wall Mounting the Chassis onto a Wall The follo wing warnin g applies only when the v oice gate way chassis is mou nted on a wall: War ni n g This unit is inte[...]

  • Seite 34

    3-6 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 3 Installing the Voic e Gateway Mounting the Chassis onto a Wall Procedure Step 1 Secure two scre ws 5 7/16 in ( 13.81 cm) apart into a wall and 5/32 in (0 .40 cm) out from t he wall. Step 2 Hang the chassis on the screws [...]

  • Seite 35

    3-7 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 3 Inst alling the Vo ice Ga teway Setting the Chassis on a Desktop Step 3 Place the power supply on a horizontal surface. Caution If you are mountin g the voi ce gatew ay on dryw all, use hollo w-wal l anchors (1/8 inch wi[...]

  • Seite 36

    3-8 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 3 Installing the Voic e Gateway Installing the Ground Connection War ni ng This equipment must be grounded. Never de feat the ground conductor or operate the equipment in the absence of a suita bly installed ground conduct[...]

  • Seite 37

    3-9 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 3 Inst alling the Vo ice Ga teway Connecting Cab les Figure 3-5 Chassis Ground Connection Using Rin g T er minal Connecting Cables • W arnings, page 3-9 • Connecting Inpu t Power to the Chassis, page 3-10 • Connectin[...]

  • Seite 38

    3-10 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 3 Installing the Voic e Gateway Connecting Cables crosses. On-premise wiring is protected from power line crosses by a device that provides overcurrent and overvoltage protection. Neverthele ss, if the on-premise wiring i[...]

  • Seite 39

    3-11 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 3 Inst alling the Vo ice Ga teway Connecting Cab les Procedure Step 1 Connect the RJ-45 end of a DB-9–to–RJ-45 serial ca ble to the RJ-45 Console Aux port on the chassis. Figure 3-7 sho w s the RJ-45 end of the serial[...]

  • Seite 40

    3-12 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 3 Installing the Voic e Gateway Connecting Cables Procedure Step 1 Connect one end of the straight-t hrough RJ-11 cable to the FXS port. Fi gure 3-8 sho ws an FXS line connection. Figur e 3-8 Connecting an FXS Line Step 2[...]

  • Seite 41

    CH A P T E R 4-1 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 4 Powering On the Voice Gateway and Performing the Initial Configuration • Po wering On the V oice Gate way , page 4-1 • Performing the Initial Conf iguration, page 4-2 • T roubleshoot ing, page 4-6 Powering On [...]

  • Seite 42

    4-2 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 4 Pow ering On the Voice Gateway and Performing the Initial Con figuration Performing the In itial Configuration ... Copyright (c) 2013 by Cisco Systems, Inc. Compiled <date> <time> by <person> Step 4 Pre[...]

  • Seite 43

    4-3 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 4 Powering On the Voice Gateway and Perf orming the Initial Configuration Performing the Initial Co nfiguration Here are the Cisco IOS commands. username <myuser> privilege 15 secret 0 <mypassword> no username [...]

  • Seite 44

    4-4 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 4 Pow ering On the Voice Gateway and Performing the Initial Con figuration Performing the In itial Configuration Continue with configuration dialog? [yes/no]: Y ou are no w in the setup command facility . The prompts in th[...]

  • Seite 45

    4-5 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 Chapter 4 Powering On the Voice Gateway and Perf orming the Initial Configuration Performing the Initial Co nfiguration The system displays a summary of the av ailable interf aces. Step 9 Choose one of the av ailable interfaces fo[...]

  • Seite 46

    4-6 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hard ware Installation Guide OL-15959-01 Chapter 4 Pow ering On the Voice Gateway and Performing the Initial Con figuration Troublesho oting Troubleshooting This section describes possib le mechan ical problems and correctiv e actions. Before You Begin If there appears t[...]

  • Seite 47

    IN-1 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Hardware Installation Guide OL-15959-01 INDEX B brackets 3-5 C cable distance limitations 2-2 caution messages 3-7 chassis 1-3, 1-4, 1-5 chassis types (illustrated) 1-2 checklist, installation 3-3 Cisco IOS software 1-7 computer, for configuration 3-4 configuration metho[...]

  • Seite 48

    Index IN-2 Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG 204XM Voice Gateways Hardwa re Installation Guide OL-15959-01 L lightning, E MI effects 2-3 log, record keeping 3-3 M malfunctions, how to diagnose 4-6 mounting methods 2-1 N noise level, fan 1-8 O operating system 1-7 P packing li st 3-4 problems, diagno sing and correcting 4-6 R rad[...]