Manuel d'utilisation / d'entretien du produit NVR-2028 du fabricant Appro
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Before trying to connect or operate this product, please read this manual complete ly INST ALLA TION & OPERA TING MANU AL Wireless Network Video Recorder NVR-2028.
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1 SAFETY PRECA UTIONS A ll the following safety and operated instructions which w ill prevent ha rm or damage to the operator and other per sons should be read be fore the unit is opera ted. W ARNING T o reduce the risk of f ire or electr ic shock , do not expos e this appliance to rain or mois ture.
2 T able Of Content s 1. PRODUCT FEA TURES .................................................................................................. 4 1.1 Pr oduct Intr oduction ................................................................................
3 6. IDE HA RD DISK INST ALLA TION ................................................................................ 53 6.1 Built-in har d disk......................................................................................................... ...
4 1. PRODUCT FEA TURES 1.1 Product Introduction The W IRELESS NVR-202 8 is a storag e m edia of d igital vi deo im age, which uses hard d isk dr ives instead of NAS dev ices to s tore vid eo. This wire less stor age media provid es the u ser with the p ower of rem ote control of the I nternet.
5 * Password protec tion. * Motion detection: user c an select the range and 5 levels of sens itivity of detec tion. * Automatic search of all available LAN cam era within the Ethernet. * Disk -full warning and operation s tatus LEDs. * RS-232 com m unication port.
6 2. DESCRIPTI ON OF THE FRONT/REA R VIEW 2.1 Front V iew Power Display Save Enter Setup PLAY STOP REC FWD REV PAUSE A-rec Search T-rec POWER DISK 1 3 4 5 6 7 8 9 10 11 14 13 12 15 16 17 18 19 20 21 22 2 23 24 Shift Seq.
7 Setup/Sav e button: Press this to enter the setup m enu. Press again to exit the setup m ode. In SD card back up m ode, press to save the desired st ill image to SD c ard. Search button: Press to enter the search m ode to acc ess recor ded video. In the LANCAM SETT ING m ode, use these buttons to s earch f or the desired LAN Cam era in the LAN.
8 A -rec Indicat or: This indicator of the alar m r ecording m ode lights up to indicate the alarm rec ord setting is on. DISK Indicator: The indica tor sho ws the op eration s tatus of the un it’s hard-dis k drives . The gree n light i ndicates th e hard-disk drive is storin g or r etrievin g data.
9 2.2 Rear V iew SD Card RS-232 ALARM DC12V MONIT OR AUDIO ANT I/O 25 26 35 34 27 28 29 30 31 32 33 WAN LAN A NTENNA: This is one standard wireless ac cess , com plies with IEEE 802.1 1g/b. SD CA RD Slot : This is used f or system s oftware updating and archiving/acces sing critic al images .
10 2.3 A LARM In/Out ALARM OUT RECORD IN GROUND DISK FULL NO CONNECTION NO CONNECTION NO CONNECTION NO CONNECTION NO CONNECTION 1 2 3 4 5 6 7 8 9 THIS FIGURE IS LO OKED FROM THE REAR VIEW 1. GND: Ground Contact. 2. ALARM OUT (OUT PUT): This is an alar m output tr igger .
11 3. INST A LLA TION 3.1 Basic Connection Please follow the instr uctions below to connect your WIRELESS NVR-2028 to a LANCAM or a com puter and to choose a m ode f or connections. 3.1.1 Use a RS-232 cable to inst all a wireless setting in a LA NCA M Use a RS-232 cable to c onnect a wireless LANCAM.
12 xi. P ush the Setup button to save the setup data. xii. W hen the words "W AITING" f lash on and of f at the bottom of the screen, if th e scr een goes bla nk, you can pres s the "P ower" b utton to c lose the device and pr ess it again to resum e its operation.
13 3.2 Hard-Disk Driv e Installat ion The WIRELESS NVR-2 028 is equ ipped with t wo com partments of hard disk drive. T he unit us uall y comes with one h ard-dis k driv e installe d in the com partment HD1, which is default-c onfigur ed as a master .
14 3.3 Sy stem Information Y ou can displa y system settings inform ation as s hown on T able 3.3 A below at any time by press ing the Display button . In the pla yback m ode, the recor ded vi deo infor mation is displa yed. In t he live or recording m ode, th e Manual Rec ordin g inform ation is displa yed.
15 3.4 Up dating System Sof tware If the s ystem software of the NVR needs t o be u pgraded , please t ake the f ollo wing ste ps to saf ely update it. Important: Before carrying out t he follow ing pro cedures, please ensure t he SD card is w orking and the file o f system software is intact 1.
16 4. BA SIC OPERA TIONS This s ection shows you how to operate and manage the NVR when it gets in the way . 4.1 Configuring Recording Settings Recording Time settings (Image R esolution and Image Qualit y Setting) Recording tim e will var y de pending on th e im age size, qualit y , and the capacit y of the har d-disk drives.
17 4.2 Recording Operations This section details the way to record video into hard-disk drives. Bef ore com m encing with the recor ding function, pleas e configure the r ecording setting pr operly according to y our needs.
18 NOTE: Y ou can pro ceed to start the s cheduled recording from t he cur rent time if it is in t he scheduled interlude as soon as setting is completed, and come out from menu to st art recording.
19 MA IN ME NU LA N CA MERA RECORD / BA NDWIDTH CLOCK / TIM ER / SEQ AL AR M COMM UNICA TION DISK SYST EM GOTO CLOCK/TIMER/SEQ P AGE CLOCK / TIM ER / SEQ CLOCK SETT ING : SET T I M E R : S E T SEQUENC.
20 4.2.3 A larm Recordi ng T ake the f ollowing ste ps to activat e the pr ogramm ed alarm rec ording. For ALM OPER A TION , ALM DURA TION , MA X RE C RA TE , and PRE- AL ARM settings, please r efer t o sectio n 5.4 for mor e details. (1) Press the Setup button to enter the MA IN MEN U .
21 4.2.4 Mot ion Detection Tak e the steps detailed below to activate a pr ogram med m otion detection. For MOTI ON SETT ING, as well as its two distinct func tions of MOT ION ENABLE and SENSIT IVIT Y / REGION, please ref er to section 5.4 f or fur ther details.
22 SENSITIVIT Y / REGION SET TING SENSITIVIT Y HIGHEST REGION ( 30, 25 ) – ( 90, 70 ) OK CA NCEL MOTIO N S ETTI NG MOT ION ENA BLE : OFF ON SET LA NCA M P AGE SET M OT ION ENABLE MOTIO N S ETTI NG M.
23 4.2.5 External ly triggered Recording By connecting the RECORD IN of ALARM I/O on the rear panel of the NVR, y ou can activate/deactivate the rec ording function of a NVR. Please ref er to section 2.3 f or m ore details. NOTE: The status of reco rding operat ions wh en an alarm takes place are shown in the diagrams below .
24 4.3 Play back Operations This s ection sho ws you ho w to operate the fast, s low , and sing le-pictur e pla yback func tions, and d etails how the unit is to playbac k a file in a d ifferent operati on status. Pleas e refer to the follo wing paragrap hs specif ying the r eleva nt de tails.
25 4.3.2 Slow Forw ard/Reverse There ar e 5 speeds available f or a slow play back : 1/2, 1/4, 1/8, 1/16, 1/32. W hile play ing bac k r ecorded video at the rec orded speed: (1) Press th e P AUSE button for the s low play bac k m ode.
26 4.4 Search Operations This section shows you how to access rec orded video. 4.4.1 Full List Search T ake the f ollowing steps to proceed with the full-lis t search f unction. (1) Press th e Search button to enter the s earch m ode. (2) Sel ect the FULL LIST and press the Ent er button to acces s the complete l ist of rec orded video.
27 4.4.3 TIME Search T ake the f ollowing steps to proceed with the tim e-list searc h function. (1) Press th e Search button to enter the s earch m ode. (2) Sele ct the TIM E SEARCH and press the Enter button to ac cess the tim e-s etting page. (3) Set the tim e period you wi sh to sear ch for the r ecorded video.
28 (5) There ar e 5 l evels of rec ording ra nge m odes to choose f rom : 1 Hour , 10 M inutes, 1 Minute, 10 Seconds and 1 Second. Select the specific field of your requirem ent and press the Enter button to enter t he next level.
29 4.5 Backup Operations 4.5.1 Mobi le Rack HD Backup Operati ons There ar e three way s available to duplicate the rec orded video fr om HD 1 (F ixed HD) to HD 2 (Mobile Rack HD). Please take the f ollowing steps to proceed. (1) Set HD 2 to BACKUP first.
30 SELECT : Duplic ate a particular recor ded video from HD1 to HD2. St ay on the DISK SETT ING page. Us e the “ ^ ” and “v” buttons , and , to highli ght B ACKUP , select SELECT an d the n press the En ter button to list all the r ecorded video.
31 4.5.2 Secure Digi t al Card (SD Card) Backup O perations The SD car d slot of the rear unit has three func tions as shown below: 1. A rchive Sing le image Clips into SD Card Please take the f ollowing steps to archive a cr itical im age in a SD card.
32 4.6 Key Lock Operation The Ke y lock oper ation prot ects the unit aga inst unaut hori zed use b y disabling the entire fr ont panel controls. Sim ultaneousl y press thes e t wo “<” and “&.
33 5. M ENU SETUP There ar e 6 categories f or operation setting in the s etup menu s y stem as shown below . The f ollowing sections will instr uct you step by step to conf igure the operation setting and s tate each menu’s purpose and options. Press the Setup button to access the setup m enu.
34 5.1 LAN CA MERA SE TTING This page allows you can select your desired LAN Cam era, whose im ages you can save in the NVR hard disk . The login nam e and password m ust be entered corr ectly . IP / ACCOUNT : Set the des ired c hannel, entering its num ber (1 to 8) in the given spac e.
35 MA IN ME NU L A N C A M E R A RECORD / BA NDWIDTH CLOCK / TIM ER / SEQ AL AR M COMM UNICA TION DISK SYST EM LA NCA M SET TING LA NCA M SET TING IP / ACCOUNT : SET IMAGE : SET A UDIO ENABLE : OFF MO.
36 IMAGE: (1) Press the Setu p button to enter the MA IN ME NU . (2) Select the item term ed " LA N CAMERA " and press the En ter button to enter the LA NCA M SET TING page. (3) Select the item term ed " IMAGE " and push the Enter button to enter the IM AGE SE TTING page.
37 A UDIO ENA BLE: (1) Press the Setu p button to enter the MA IN ME NU . (2) Select the item term ed " LA N CAMERA " and press the En ter button to enter the LA NCA M SET TING page. (3) Select the item term ed " A UDIO ENABLE " and push the Ent er button to selec t the A UDIO ENA BLE .
38 MOTIO N S ETTI NG MOT ION ENA BLE : OFF ON SET LA NCA M P AGE SET M OT ION ENABLE MOTIO N S ETTI NG MOTI ON E NA BL E SENSITIVIT Y/REGION : CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 LA NCA M P AGE SET MOT IO.
39 MOTI ON: Take the s teps d etailed belo w to ac tivate a program m ed motion de tection. For MOTIO N SE TTING , as well as its two distinct functions of MOTI ON E NA BL E and SENSITI VITY / REG ION . (1) Press the Setu p button to enter the MA IN ME NU .
40 5.2 REC SE TTING This page allows you to set the re cording r ate and rec ording qualit y , and e nables you to cont inue recor ding when the disk is full. MAX REC RA TE: This option is used for limiting the num ber of pictures recorded ever y second into a s torage disk .
41 5.3 CLOCK / TIMER / SEQ SETTING The NVR-2028 pr ovides a weekly table, consisti ng of two periods of time eac h day for scheduled recording. T his option allows you to set the time each day that the NVR will start and stop recording. CLOCK SETT ING: This entry allows users to set the system tim e.
42 5.4 A LAR M SETTING This m enu allows user s to program the conf igurat ion of alar m r ecording only when an alarm input is activated. The device will rec ord as long as the alar m input is activated. A LM OPERA T ION: This option deter mines whether to activate/deactivate the alarm recor ding when it detects an alarm input.
43 5.5 COMMUNICA TION This optio n allo ws you to configure th e status of the RS-232 c omm unication po rt when conn ected to an external device, a nd the wir eless com municatio ns settings . (Please r efer to the APPENDIX 2 and N etwork Function f or m ore details) WIRELESS: This entr y allows users to set the wireless setting.
44 CHA NNEL: Specify the bandwidth that the wi reless radio operates in. T he NVR and wireless LANCAMs ar e associated with operations in one of the frequenc y channels. NOTE: The standar d norms of channel number s and frequency ranges differ from countr y to country .
45 LA NCA M SETUP: This option is used to sel ects either RS232 or WL A N . If yo u wish t o tran sfer i nfor mati on to th e wire les s LANCAM via the NVR, y ou m ust select the LA NCAM SETUP option to conf igure the wireless or wired (RS-232) f unction installation.
46 ST A TUS: Show W AN leased IP table. CONNECT T YPE: This enables you to choose y our connection style. AU T O : Dy nam ic IP from DHCP server, no dialing necessary. MANUA L: Static IP, no dialing needed. Enter the W ide Area Network (W AN) IP Address , Subnet Mask , ISP Gatewa y Ad dress , and DNS values .
47 COMM SET TING WIRELESS W AN SETTING N E T I P NET DHCP LEA SED IP T A BLE IP POOL RANGE SET CO MM ID RS232 MAIN P AGE SET IP POOL RANGE IP POOL RA NGE SETT ING 192.168. 1. 1 ― 192.168. 1.254 SET IP POOL RANGE NET IP: This option is used to conf igure the Ethernet com m unication settings .
48 CO MM ID: Comm unication ID f or RS232 com m unication. Af ter the NVR receives a RS232 com mand, it c heck s if the <Dest ID> within the code is the sam e as the COMM ID, in which c ase the particular com mand c an be accept.
49 5.6 DISK SETTING REFORMA T : This option allo ws you to cl ear out al l the data in the hard- disk dr ive. Y ou will be re quired to enter the pr e-set password before proc eeding with clearing out the data. Enter the standard password “9999” if you don’t set y our individual password.
50 5.7 SYSTEM SETTING This page is us ed for acc essing the h istory of the operation status , setting th e password, resu ming f actory default, and determ ining the m enu display background. OPERA TION LOG: This log s hows the history of the operation status in chr onological order .
51 MENU BACKGND: There ar e 3 levels of bac kground c olor transpar ency, y ou c an choose fr om : level 1 is totally transparent, level 3 is opaque, and level 2 is between level 1 and 3. The back ground c olor is used in setup m enu and search f unction.
52 SD SETUP: The NVR of fers a quic k s etup method by using a SD card. If the us er wants to set up m any a number of the sam e devices with the same settings , he can save the whole settings to a SD c ard, then transfer to another NVR. SA VE: Saves the whole setting to the SD card.
53 6. IDE Hard Disk Inst allation Usually , th e unit c omes with one hard- disk drive ins talled in com partment HD 1, which is default-c onfigure d as a master . The j um per settings configur ation of the installe d hard- disk drives f or the un it and com patible drives which c an be us ed with this un it are listed in the table b elow .
54 6. 6. Secure the driver in the rack using two mounting s crews in both the side-m ounting holes. Please don’t tighten the screws too m uch, otherwise that may damage the driver . 7. 8. 7. Screw the rack in to the de vice, screwi ng in all the four s crews.
55 2. Pull the active-handle outward to rem ove the carr ier body aw ay from the mobile r ack 3. Slide the top cover back ward and rem ove. 4. Setting the jum per of your hard disk driver .
56 7. Place the top cover bac k to the c arrier body by s liding forward to secure. 8. Slide the carrier body back in the m obile rac k. 9. Push the carr ier body further into the mobile r ack until fully inserted. 10. Push the active-handle inward. 11.
57 7. O.S.D Message No. O.S.D Message Meanings 1 NO DISK No hard-disk detected after power activated 2 B A TTER Y LO W Suggest change the battery and reset the s y stem tim e 3 LOADING Sy stem Boot up.
58 8. Index T able The f ollowing description details how the NVR-2028 m anages an index table issue. The NVR will generate a tim e index table indicating re c orded data is kept in a particular HDD. This allows to individually selec ting recorded data to be displayed via the alarm list searc h and full list search.
59 9. Wireless Networ k Configuration 9.1 Configure Y our NVR-2028 Network Settings Upon wir eless net work hardware con nection, you ne ed to ac tivate th e wirel ess net work f unction and configur e the proper network s ettings of the NVR.
60 Use the “ ^ ” and “v” buttons , and , to highlight the NET IP . Pres s the Enter button to enter the NET IP page Set the IP , MASK and GA T EWA Y . Then press the Ent er button to proceed. The f ollowing is a sam ple setting. IP: 192.168.
61 9.2 TCP/IP Communication Sof tware Follow the instructions below to install the TCP/IP comm unication progr am into your com puter . Click the Star t Menu fr om your com puter , and point to the Settings/Control p anel. Click the NETWORK ic on twice to enter the NETW ORK setting windows.
62 9.3 TCP/IP inst allation During the installation, y ou will be requested to inser t the windows 98 CD ROM. After installation, the PC will be restarted. 9.4 TCP/IP Configuration setting C lick Star t Settings Control Pa nel Network .
63 If you are us ing a DHCP server , please s elect Obtain an IP add ress auto matically . A ny assigned IP addres s for the connected NVRs mus t be in the sam e class t ype as the server . If there is no DHCP server , please s elect spec ify an IP addres s and type in the IP address of y our PC.
64 If you receive a response as in the s ample s creen below , the connection has n’t been succe ssfully established. Please re- check all the hardware and software installation by repeating steps 1 to 5. If you still can’t establish the c onnection after rechec king, pleas e contact your dealer .
65 10. Netw ork Viewer and Image View er This section provides instructions for ins talling and using the Network Viewer and Image Viewer , which are included with the NVR. The program s can be operated by a selected PC equipped with the following requirem ents.
66 RJ-45 PIN c onfiguration for Etherne t PIN NO. PIN A ssignment 1. TX + 2. TX - 3. RX + 4. Not Connected 5. Not Connected 6. RX - 7. Not Connected 8.
67 10.1.3 View the NVR vid eo from a remote PC Once the Network View er is ex ecuted a Login inset will appear . Y ou m ust enter the default Us er Nam e: admin , and password: 9999 into the respective entries and clic k OK to log into the applic ation.
68 Functions Description Dev ice List Displays the entir e list of connect ed devic es if and as necessar y . T his list includes a lot of inform ation about all the connected devic es. NVR Number As signs a display location when y ou have m ultiple devices connec ted.
69 Function Buttons Description Play back func tion bar . Pla y- Cl ick to a r ecorded video f rom the PLA Y LIST . Paus e- Click to freeze the im age. Stop- Click to stop p laying bac k the recorded video or cease recor ding. REC- Cl ick to activate the recording function of the device.
70 This allows you to se arch a r ecorde d video kept in the HDD of the device. Enter the MONTH/DA Y/YEAR HOU R: MINUT E you wish to search and c lick GO to proceed. Every NVR has to o wn an IP address and a title to be id entif ied on th e net work. T his space displays the title and the IP address of the NVR.
71 10.1.4 Change th e PC SYSTEM SET TING Follow the instructions below to reconfigure the System Setup and the Alarm Setup: A. B. Set the System Setup 1. W hen in the Wireless NVR Netw ork Viewer Console, c lick the button to enter the PC System Setup page.
72 10.1.5 Change the Reco rd & Timer Propert ies Via the Network Follo w the instruct ions bel ow to rec onfigur e the recor d and sc hedule re cording s ettings via the net work.
73 Set the regu lar record sett ings 1. When in the s ingle –de vice m ode, click to enter the NVR S ETUP page. (See the sam ple sc reen in A above) 2.
74 10.1.6 A rchive Images t o the Comput er Play back im ages can be stor ed in a local PC in the JPEG f orm at. Follow the instruc tions below to save the viewed images to y our PC. 1. Click an entry from the Recorded video list box and click the button to review a recorded video.
75 10.2 The Image Viewer The Wire less NVR is equipped with a di gital watermar k. It's a check software whic h protects archived im ages and i nform s you whether the images have been m odified or not. Follo w the instructions below to open an archived im age fr om an SD c ard or a HDD.
76 1 1 . Mi crosoft Internet Explorer If you wish to connec t your c omputer with a WIR ELESS NVR , your PC needs to h ave a wireles s card. This section provides instruct ions for us ing the Microsoft Internet Ex plorer , which are inc luded with the NVR.
77 Function Buttons Description Click to stop pla ying back the r ecorded v ideo or to cease rec ording. Click to a recorded video f rom the PLA Y LIST . Click to freeze the image. Click to activate the recor ding function of the device. Click to leave the home page of the NVR.
78 Recorded v ideo list box . T his box allo ws you to acces s all rec orded video, which are st ored in t he HDD of the c onnected d evices. T o revie w a recorded video, s impl y select a n ent ry from the list a nd c lick the button. PgUp/PgDn : Ena bles you to scr oll up a nd down th e list.
79 1 1.2 Change LA NCA M SETUP Setting Please follow the steps given below to change the LANCAM setting thr ough the network as and when necessary . (1) Click the button on the home page to enter the setup m ode. (2) At the top of the page are item ized CAMs 1 to 8, each of which is c onnected to the corres ponding cam era.
80 1 1.3 Change Record / Alarm Set ting Please follow the steps given below to change the RECORD / ALARM s etting through the network as and when necessar y . 1. Click the button on the home page to enter the setup m ode. 2. Click the connec tion on the setting page to enter the RECORD / ALARM setting page.
81 1 1.4 Change Schedule Setting Please follow the steps below to change the Timer Record s etting through the network as and when necessar y . 1. Click the button on the home page to enter the setup m ode. 2. Click the connection on the setting page to enter the Timer Recor d setting page.
82 1 1 .5 Change Wireless Sett ing Please follow the steps below to change the Timer Record s etting through the network as and when necessar y . 1. Click the button on the home page to enter the setup m ode. 2. Click the connection on the setting page to enter the W IRELESS SETT ING page.
83 12. SPECIFICA T IONS Mo del Number WIRELESS NVR-2028 Lancam Connection Lancam x 8 Image System NTSC P AL Image Res olution 720 x 480 pixels 352 x 240 pixels 720 x 576 pixels 352 x 288 pixels Video .
84 A PPENDI X 1. –SCA NIP Follow the instructi ons belo w to use the SC ANIP software to search the N VR-202 8 devices from a local location. 1. Click the button to disco ver the co nnection of the al l-type device in the L AN. The Device List will display the connection of the all-type device.
85 5. Manual insertion of “Free IP Address ”. If you have clicked “ No”, please m anually ty pe in inser tions as requir ed in the “Free IP Address” , “Gat eway Address ”, and “ NET Mask ”.
86 9. T o change any IP address, ty pe in the new address in the “ Free IP Address” box on the right as well as the device “Login Nam e” and “ Password” in their r espective blank s at bottom left, then click “UPDA TE” , and the new address will autom atically be sent to the device.
87 A PPENDIX 2. –RS-232 Protocol 1. Setup 1.1 Us e a Null Modem c able (the standard RS-232 9 Pin Cable with Pin 2 and Pin 3 exchange d, see pin c onfigur ation chart be low f or details) to c onnect the CO M 1 on the rear panel of the NVR-2028 to a PC.
88 < The v alue of a specif ic front panel key > KEY_PLA Y 1 KEY_STOP 3 K E Y _ P A U S E 4 KEY_POW ER 5 KEY_REC 6 KEY_SETUP 7 KEY_ENTER 8 KEY_SEARCH 10 KEY_DISPLA Y 1 1 KEY_UP 13 KEY_DOW N 14 K.
89 3.2 Request Time (Second Category=0x02) PC Request: <0x41>, <0x01>, <0x 20>, <0x02>, <0x02>, <0x 00>, <0x4f> NVR Response: <0x41>, <0x 20>, <.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Appro NVR-2028 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Appro NVR-2028 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Appro NVR-2028, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Appro NVR-2028 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Appro NVR-2028, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Appro NVR-2028.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Appro NVR-2028. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Appro NVR-2028 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.