Specifications - Velleman VWS2 Handbuch

When the alarm is triggered, "!!alarm1!!" will appear above the displayed image as shown below:
11. FAQ
1. I do not have a network or internet connection. Can I still use the VWS2?
Yes, you can connect the VWS2 directly to your PC or notebook for remote control and video storage purposes.
2. Can I use ISDN to connect to the VWS2?
No ; the VWS2 can only be connected via ADSL or cable modem. It does not support ISDN connection.
However, a router that supports ISDN, RJ-45 and port forwarding, can be used with the VWS2.
3. What kind of frame rate can be expected?
This depends on the bandwidth and the average image size.
The formula to calculate the frame rate is: bandwidth / (8 x average image size) = number of images per second.
The average image size is: CIF: low=6Kb ; middle=9Kb ; high=12Kb ; VGA: low=24Kb ; middle=36Kb ; high=48Kb
Example : at a 512Kbs bandwidth and low CIF image quality (1 image = 6kb),
the frame rate is: 512 / (8x6) = 512 / 48 = 10.6 images/second.

12. Specifications

Video input 2 channels for both analogue and digital products, 1.0Vp-p, 75, composite, BNC
Alarm input 4 inputs
Watchdog Yes
RS-485 port Yes
Network interface Ethernet (10/100 Base-T)
Image compression JPEG
Video adjustment Brightness, Contrast, Saturation, Quality Level adjust
Protocols TCP/IP, ICMP, SMTP
Hardware CPU: 32-bits RISC processor, 4MB Flash ROM, 16MB SDRAM, GPIO with e-mail trigger,
1 RJ-45 connector for 10/100Mbps Ethernet, LEDs to indicate link/act status
Resolution VGA: 640x480 ; CIF: 320x240
Performance video throughput: up to 15 (NTSC) / 12.5 (PAL) frames/sec. ; network throughput: up to 3MB/s.
Trigger & action triggered by GPIO input, action: e-mail image to specific account
Installation assign static & dynamic IP address
Software upgrade from FTP-site
Security password protection
Power 12V/1.25A switching power
The information in this manual is subject to change without prior notice.
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