AHDS204CWT4 - Surveillance Camera NEDIS - Free user manual and instructions

Product type	Surveillance camera (DVR system + 4 cameras)
Brand	Nedis
Model	AHDS204CWT4
Number of channels	4
Recording resolution	Up to 1080p (AHD/TVI/CVI)
Signal type	AHD, TVI, CVI, AUTO
Recording modes	Continuous, scheduled, motion detection
Motion detection	Yes, 3 sensitivity levels and customizable areas
Remote viewing	N_EYE PRO mobile app (iOS and Android)
Connectivity	Ethernet RJ45, VGA and HDMI outputs, USB ports, BNC inputs
Power supply	Power adapter included (DVR) and power splitter for cameras
Hard drive	Internal SATA hard drive (not included)
Interface language	Multilingual (including French)
Playback functions	Fast forward/rewind, pause, zoom, screenshot
Backup	Via USB flash drive through USB port
Security	Adjustable username and password (default: admin/123456)
Maintenance	Clean the device with a dry, soft cloth
Included accessories	Coaxial cables, mouse, power adapter
Camera compatibility	AHD, TVI, CVI, analog

Frequently Asked Questions - AHDS204CWT4 NEDIS

How to reset forgotten password?

By default, the username is admin and the password is 123456. If you have changed the password and forgotten it, you will need to contact technical support. No reset procedure is described in the manual.

How to configure motion detection?

Go to Context Menu > Main Menu > System Setup > Output Mode. Enable motion detection, adjust sensitivity (3 levels), choose actions (recording, capture, email, full screen) and define the detection area by highlighting.

How to access the DVR from my smartphone?

Make sure the DVR is connected to the router. Download the N_EYE PRO app. Create an account or use local session. Add the device by scanning the P2P QR code on the DVR or by entering network parameters.

What to do if the camera image is black?

Check the BNC connections of the coaxial cables. Make sure the cameras are powered via the power splitter. Also verify that the monitor is on the correct input source.

How to schedule recording at specific times?

In the Recording Configuration menu, select the channel. Choose the recording type (None, Normal, Motion). Click and drag on the time grid to set time ranges. Copy the schedule to other channels if needed.

How to backup recordings to a USB flash drive?

Insert a USB flash drive into a USB port of the DVR. In playback mode, click the Backup icon. Select the period and channels, then start the backup.

What types of cameras are compatible?

The DVR is compatible with AHD, TVI, CVI cameras and standard analog cameras. The maximum supported resolution is 1080p.

How to properly shut down the DVR?

Right-click to open the context menu, choose System Shutdown then Close. Avoid holding down the power button, as this could damage the hard drive.

How to change the interface language?

Go to Main Menu > System Setup > System Configuration. In the Language option, select the desired language (French is available).

What to do in case of sudden system shutdown?

The DVR automatically saves ongoing videos. After a restart, the system resumes to the last known state. If the problem persists, check the power supply and hard drive.

USER MANUAL AHDS204CWT4 NEDIS

Exterior view of a black Nedis networking device with ports and control buttons (no readable text beyond branding)

User manual

Sensor	Main Board Sensor Industrial Embedded Microprocessor
	Operating System Embedded LINUX operating system
System	Signal Support AHD, IPC, CVBS, TVI, CVI (5 in 1)
	Video Coding H.264
	Video Format 4CH / 8CH 1080p
	Video Frame PAL: 1 - 25 FPS / NTSC: 1 - 30 FPS
	Double Stream Support
	Interface USB Port (2x), RS485, SATA HDD (max 8 GB), VGA, HDMI, CVBS,BNC (4x / 8x), RCA input, RCA output
Recording Manage	Recording Mode Automatic / Manual / Scheduled / Motion Detection / Alarm Recording
	Recording Resolution Self-adaption
	Playback 4CH 1080p
	Playback Mode Instant / Search / Event
	Backup Mode USB / Network
Network	Protocol	Support TCP/IP, UDP, PPPoE, DHCP, DDNS, NTP etc.
	P2P Cloud	N_EYE Pro APP / www.yunyis.com
	Supported access	Mobile App (iOS / Android), UTC control, 3G, WIFI
Power	Power 12 VDC
	Power Consumption	< 15W (no HDD)
Others	Operating conditions	-10 - 55 °C / 10 - 90% humidity
	Physical	255 x 215 x 45 mm / < 1,5 KG (no HDD)

CH01 CH02 2017/08/12 White 1ST/08/03/08/09 NEXA GNTWY CH03 CH04

Figure "A"

Record Config Basic Manual Event Schedule Camera CH 1 R:30, R:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Figure "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Figure "C"

1. Connect

• Connect the cameras to the recorder with the coaxial cables using BNC connector
• Use the power splitter to power the cameras
• Connect the DVR to a TV or monitor using the preferred connector
• Connect the mouse using USB
• Connect the recorder to the internet using an Ethernet cable (if desired)
• Finally power up the recorder with the included power adapter.

2. Start Up

Press the start button and make sure the TV/monitor is set to the right input source. It will enter the real-time monitoring screen as shown in figure "A".

3. Navigation

Right-click anywhere to access the "Right-click menu".

At first attempt login is required, default username is admin, default password is 123456

Use the left mouse button to navigate through the menu, right click in the menu to go back.

4. Shutdown

• Right-click anywhere to access the "Right-click menu", choose "Shut down system" and "Close", or
• Long press the startup button at the front panel (not recommended as it may damage the hard disk)

5. Recovery

At sudden system power off, the recording video will be stored automatically and after reboot, the recorder will automatically resume to the status before power off.

6. Recording

In the Record Config menu you can set each camera's recording schedule. By selecting the preferred recording mode and clicking individual timeslots or dragging to set a larger timezone or to cover multiple days at once.

White means that no recording will be done in this timeslot, blue means constant recording is done and green means that recording will only happen after motion is being detected.

After a schedule is finished, it can easily be copied to one or more cameras. See figure "B"

7. Motion detection

In right-click menu - main menu - system settings - output mode the motion detection can be enabled and different settings can be set:

• 3 different sensitivity settings
• exact action(s) to take: Record one or more channels, take snapshot, send Email or show triggered camera fullscreen.
• Area setting (motion mask): if set only motion in the highlighted areas trigger the set action(s).

8. Playback

When watching back earlier recordings, you get the interface like figure "C":

The 4 grey timelines at the bottom represent the 4 different channels. Differently coloured areas indicate different types of recording (scheduled, manual, alarm or triggered by motion detection).

Drag the timeline left or right to scroll in time, use the mouse's scroll-wheel to zoom the timeline.

Double click on a specific time to play back the recording starting from the selected time.

9. Mobile Application

To access the DVR on your smartphone make sure the DVR is connected to the router and the network is configured correctly. Download and open the App "N_EYE PRO", login or register your account or use local login if you only need access from within the local network. Add device using the plus sign and select Network Device. Scan the QR-tag shown at the DVR under P2P Cloud or copy the requested network parameters. The App can automatically detect the number of cameras on this DVR. After saving you will see all cameras added. On the top-right corner specific cameras can be switched on and off. Other options in the App include playback and manual recording on smartphone.

Image Color	Brightness
	Contrast
	Chroma
	Saturation
Video Mode Settings	AHD
	TVI
	AUTO
	CVI
Electronic Zoom	Click and drag in bottom right image to zoom in
PTZ control	not applicable with our cameras
Video Query	Select date and camera, search for made recordings in bottom timeline
	Play / Pause Play / Pau video
	Stop Stop the video, a screens close
	Fast Forward / Rewind Forward		/Rewind
	Slow / Fast Play the video speed of X/2X/4X/8X/16X
	Screen splitting mode 4 cameras simultaneously
	Backup Backup record on USB hard disk
	Capture Save still frame the selected channel
	Full Screen Single-click inter full screen
	Electronic zoom Use thumbnail on the bottom right corner to select an area to zoom in to
	Exit Playback Return to view page
Main Menu	Backup
	Record Configuration	Basic / Manual / Event	Channel default = ch. 1, select which channel to set.
			Stream type video = video only, composite = video and audio
			Video quality set quality (higher quality = larger files)
			Resolution	automatically defined by the camera
			Bit rate limit choose preset value or set manually
			Frame rate	choose any value, default is "full frame rate";
		Schedule	Channel	Select the camera for which to set the recording schedule
			Select the desired type of recording (No, Common or Motion)
			Click and drag to set the schedule for the entire week
			Copy the selected schedule to other cameras if needed.
	System Setting	Output Mode	Menu Output	Camera Name	Shown on each channel display
				Camera Mosaic	Define up to 4 areas which are blocked in recording (security/privacy)
				Video Loss	Set the required action when signal loss is detected
				Motion detection	Set sensitivity
					Set the required action(s) when motiomn is detected: recording one or more channels, showing fullscreen
					Area setting (motion mask): only movement in the highlighted areas triggers recording
				Color Settings	Set brightness, contrast, chroma and saturation for each channel individually
			Output Config	Menu Transparency	Set the transparency of menu item background
				Screen Saver Time	Set the time after which the screen automatically switches off
				Resolution	Set the resolution sent over VGA and HDMI output

Main Menu	System Setting	System Configure	Device Name
			Auto logout
			Video Standard
			Language
			System Time
			Date Format
			Time Format
			Time Zone
			Summer Time (daylight saving time)
		User Management	Add user
			Delete User
			Edit User
			User Ahorization
		Version Info
		System Update
	Hard Disk Management	Disk Type	Shows the code of the product model
		Disk Capacity	Shows the total capacity of the hard disk
		Free Space	Shows the remaining capacity of the hard disk
		Status	Current working status of the hard disk
		Initialize the hard disk	Start the disk format operation (needed before first use)
	Network Parameters	Basic	Network card type you can choose different network card based on your needs
			Obtain IP address automatically
			Update	can re-obtain a DHCP lease
			IP address
			Subnet mask
			Gateway
			MAC address	Shows physical address of the current network interface
			WLAN mode	Only applicable after new network card is installed
		Advanced Config	Set DDNS Parameters
			E-mail Settings
			PPPOE
			Port Setting
	Alarm Management	Alarm Input	Channel
			Alarm status
			Alarm time
			Linkage mode
			Copy to other channels
		Alarm Output	Channel
			Output Alarm Delay
			Alarm Time
			Copy to other channels
		Exception Configuration
System Info	Stream Statistics
	Log Info
	Export Configuration
	Import Configuration
Sensor	Moederbordsensor Industrieel geïntegreerde microprocessor
	Besturingssysteem Geïntegreerd LINUX besturingssysteem
Systeem	Signaal Ondersteuning AHD, IPC, CVBS, TVI, CVI (5 in 1)
	Videocodering	H.264
	Videoformaat 4CH/8CH 1080p
	Videoframe PAL: 1 - 25 fps / NTSC: 1 - 30 fps
	Dual stream Ondersteuning
	Interface USB-poort (2x), R5485, SATA HDD (max. 8 GB), VGA, HDMI, CVBS, BNC (4x/8x), RCA invoer, RCA uitvoer
Opname-manager	Opnamemodus Automatisch / Handmatig / Gepland / Bewegingsdetectie / Alarmopname
	Opnameresolutie	Zelfaanpassend
	Afspelen 4CH 1080p
	Afspeelmodus Direct / Zoeken / Gebeurtenis
	Back-upmodus USB / netwerk
Netwerk	Protocol Ondersteuning TCP/IP, UDP, PPPoE, DHCPDDNSNTP etc.
	P2P-cloud N_EYE Pro APP / www.yunyis.com
	Ondersteunde toegang Mobiele app (iOS / Android), UTC-bediening, 3G, WiFi
Voeding	Voeding 12 VDC
	Stroomverbruik < 15W (geen HDD)
Andere	Bedrijfsomstandigheden	-10 - 55 °C / 10 - 90% luchtvochtigheid
	Technisch	255 x 215 x 45 mm / < 1,5 kg (geen HDD)

CH01 CH02 2017/08/12 White 1ST/08/03/08/09 NEXA GNTWY CH03 CH04

Afbeelding "A"

Record Config Basic Manual Event Schedule Camera CH 1 B:200, B:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Afbeelding "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Afbeelding "C"

1. Aansluiten

Record Config Basic Manual Event Schedule Camera CH 1 R:30, R:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Abb "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Abb "C"

1. Verbinden

Record Config Basic Manual Event Schedule Camera CH 1 B:200, B:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Figure "B"

Flashbox vial Rpt 1917 G M T W F E S 7 3 5 6 7 8 0 0 1 2 3 4 5 16 22 23 24 25 26 22 24 25 26 27 28 AC Camera 1:2:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:0 OK 60.0% 34.0% 40.0% MODE 74.0% 73.0% 72.0% HOURS 19.0% 55.0% 45.0% B Camera 0 Camera 0 Camera 0 Camera 0 Auto Control Manual Display Mode

Figure "C"

1. Connexion

Record Config Basic Manual Event Schedule Camera CH 1 B:200, B:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Figura "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Video 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00 16:00:00

Figura "C"

1. Conexión

Record Config Basic Manual Event Schedule Camera CH 1 B:200, B:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Figura "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Figura "C"

1. Ligação

Record Config Basic Manual Event Schedule Camera CH 1 R:30, R:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Figur "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Figur "C"

1. Anslutning

Record Config Basic Manual Event Schedule Camera CH 1 B:200, B:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Figur "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Figur "C"

1. Tilslutning

Record Config Basic Manual Event Schedule Camera CH 1 R:30, R:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Kuva "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Kuva "C"

1. Liitäntä

Record Config Basic Manual Event Schedule Camera CH 1 B:200, B:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Obrázek "B"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Obrázek "C"

1. Připojení

Record Config Basic Manual Event Schedule Camera CH 1 B:200, B:30 Sun. Mon. Tue. Wed. Thu. Fri. Sat. No Record Common Motion Copy to All Cameras Copy OK Cancel Apply

Рисунок "В"

Flashbox vina Rat 2017 M E W F S 7 5 9 6 7 8 0 0 0 0 0 0 0 0 16 37 00 00 00 00 00 23 24 20 25 23 26 27 AV Camera(s) T: 25.00.00 Camera 01 Camera 02 Camera 03 Camera 04 Auto Audio Common Music Logic Motion

Рисунок "С"

1. Подключение