B. VIDEO COMPRESSION

a) How to compare our SMAC-M with other standard compression technologies, like MPEG-4, M-JPEG and JPEG?

Answer: SMAC-M is our proprietary video compression technology developed by TeleEye for IP and mobile video surveillance application. Unlike traditional video coders such as JPEG, M-JPEG or MPEG-4, SMAC-M is the first video coder which generates multiple video streams which allow multiple remote users to obtain optimal surveillance performance for their respective channel requirements without affecting each other. It records 60% longer and transmits 50% faster than MPEG-4.

b) How to compare SMAC-M with H.264?

Answer: H.264 is one of the video compression technologies that can be used in MPEG-4 system. H.264 is also known as MPEG-4 Part 10. On the contrary, the video compression technology usually being used in MPEG-4 system is H.263 that is also known as MPEG-4 Part 2. No matter if H.263 or H.264 are implemented in the MPEG-4 coder, both of them would come with the characteristics of the traditional video coder i.e. video transmission and recording performances would be affected by each other. MPEG-4 and H.264 both employ Motion Predictive Coding in order to remove the redundancy between successive frames. One of the drawbacks of this technique is the non-uniform image quality on successive frames. Since both MPEG-4 and H.264 are not designed particularly for remote video surveillance applications hence their error handling is not good enough for streaming video over very bursty communication channels, like broadband Internet or mobile data networks. So both MPEG-4 and H.264 would result in significant artifacts especially when there is a traffic problem over the network.

On the other hand, SMAC-M generates multiple video streams which allow multiple remote users to obtain optimal surveillance performance for their respective channel requirements without affecting each other. The video stream at different bit rates covering LAN, ADSL and mobile communications. User can view live video on a mobile phone with our mobile monitoring software.

c) What factors would affect the video refreshing rate in the TeleEye?

Answer: The frame refreshing rate on the TeleEye depends on the actual data throughput on the communication channel, amount of change between successive frames, picture resolution and quality selected by user.

d) Would the picture quality be affected on poor communication network condition?

Answer: No. The picture quality of the TeleEye would not be affected regardless of the communication network condition and the actual data throughput on the communication channel. The communication network condition would only affect the actual frame refreshing rate on the TeleEye.

C. REMOTE RECORDING

a) How can remote recording be done in TeleEye NX?

Answer: With our versatile video management software such as multi-site WX-M4Lite and WX-M16, the video recording of TeleEye NX can be recorded in remote monitoring PC. User can extract the video remotely without the need being to the site.

D. REMOTE MONITORING

a) How can I remotely monitoring the site via PC?

Answer: By using multi-site monitoring software WX-M4Lite and WX-M16 for 4 and 16 sites respectively and web browser, you can conduct remote surveillance via LAN or Internet on PC. Functions include triplex operations, digital video recording and electronic patrol, sophisticated event management and full screen display.

b) What types of mobile phone can work with M-303 M-Monitoring Solution?

E. ALARM

a) What types of sensors are compatible with the TeleEye network camera?

Answer: All alarm sensors, including magnetic door contacts, PIR motion detector, etc. with dry-contact (i.e. normal open or normal close) outputs are fully compatible with the TeleEye network camera.

b) How would TeleEye network camera handle if an alarm trigger is detected?

Answer: If the TeleEye network camera has not been connected to a receiving PC, it would automatically make connection to the TeleEye receiving PC when an alarm goes off. Video(s) from the camera(s) associated to the alarm input would be transmitted to the receiving PC after the connection has been made. Meanwhile the TeleEye receiving software would indicate the alarm input that has been triggered and give an alarm sound through the PC speaker. All the incoming videos into the receiving PC would be recorded automatically into the hard drive of the receiving PC.

c) How would TeleEye network camera handle if the alarm triggered simultaneously?

Answer: The video would be transmitted to the TeleEye receiving PC. These incoming video would be recorded into the computer hard drive.

d) How would the TeleEye network camera handle if it finds that the receiving PC is busy?

Answer: Each TeleEye network camera can accommodate up to 1 alarm dial-back numbers. If the TeleEye server finds the 1st number is busy, it will try to make connection to the 2nd number. If the 2nd number is also busy, it will try to make connection to the 3rd number. After trying on these 4 numbers and if all of them are busy, the TeleEye will repeat and try on the 1st number again until the connection can be made.

F. AUDIO TRANSMISSION

a) How many audio channel does TeleEye NX have?

Answer: TeleEye NX301 video server comes with 1 audio input and 1 audio output. The audio bit rate is 7.2 / 32kbps.

G. POWER SUPPLY

a) What is Power over Ethernet (PoE)?

Answer: TeleEye NX301 and NX288 come with PoE. PoE refers to data and power supplying on a single CAT5 cable. They are fully Clause 33 of IEEE802.3:2005 (IEEE802.3af) compliant. The DC is 48V and maximum current is 400mA. The maximum power is 12.95W according to the IEEE802.3af standard. The maximum distance between power sourcing equipment (PSE) and powered device is 100m. Examples of PSE are network switches such as D-Link DES-1008PA, Linksys SRW2008MP, 3Com 4500G PWR, etc.

H. ADVANCED SECURITY MODE

a) How many accounts are there in advanced security mode?

Answer: There are 20 definable user accounts. 1 of them is special defined user accounts (‘ADMINISTRATOR’) and others are normal user accounts. Different access rights such as video monitoring, audio monitoring, camera control and event control can be assigned between each user account. There is password encryption in network transmission. There can be 6 concurrent users.

I. PRODUCT FEATURES

a) What is a network video server?

Answer: TeleEye NX301 network video server converts analogue cameras’ video into IP-based streams and transmits this video through the LAN, Internet and mobile network.

b) Why you need a network video server?

Answer: When there are many existing analogue cameras installed in different sites, users can use network video server to converts these analogue cameras to IP-based that allows cameras to transmit video through different network directly.

c) What are the advantages of using network video server?

Answer: Users can enhance existing security CCTV system by just adding a network video server to converts existing analogue cameras to IP-based with lower cost relatively. It adds value to existing network infrastructure and can lower the cost of ownership.

d) What is switchable IR-cut filter?

Answer: The IR-cut filter can be switched automatically under different environment. The IR-cut filter is on when there is in daytime with a sufficient lighting. The IR-cut filter is off where there is at night with an insufficient lighting and the camera changes to monochrome mode.

f) What is the advantage of the auto iris IR lens?

Answer: Since the wavelength of IR light is significantly longer than that of visible light, the focus of ordinary lens will be shifted between daytime and IR operation, making the image blur at night-time. The built-in auto-iris lens with zero focus shift in TeleEye IR cameras produce sharp images under both visible and IR illuminations environment.

e) What is back light compensation (BLC)?

Answer: BLC is a technology that allows cameras to adjust the light level compensation to fit the environment and provide a clear images and video.

f) What is 3-axis adjustment?

Answer: The lens in a camera can be rotated horizontally or vertically. The camera can be mounted to ceiling, wall or slope. The viewing angle can be adjusted easily after installation.

g) What is auto gain control?

Answer: Auto gain control is to maintain a constant output voltage by adjusting the amplifier automatically even the input voltage is unstable.

J. TELEMETRY CONTROL

a) Can TeleEye NX301 work with 3rd party telemetry systems and speed dome cameras?

Answer: TeleEye is compatible with various third party telemetry systems and speed dome cameras like Panasonic, Kampro, BBV, Pelco, VCL, Canon, Demco, Lilin, C&B, Kalatel, etc.