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Monochrome / Color:

Number of Video Inputs:

Maximum Frame Rate:

frames per second

Video Storage Capacity:

LAN / WAN Technology:

Communication Protocol:

Control / Management Interface:

Video Format:

Video Compression:

Audio Capability?

Switching Capability?

E-mail Capability?

Microsoft® IE / Netscape® Compatible?

Event Detection / Triggering?

Password Security?

External Device Control?

Help with Video Servers specifications:

Monochrome / Color
   Monochrome / Color       
   Your choices are...         
   Monochrome       The image is presented in monotone black, white, and grayscale. 
   Color       The image is presented in a range of colors generated with varying combinations of different discrete colors. One common technique is sensing the red, green, and blue components (RGB) and combining them to create a wide spectrum of colors. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Performance Specifications
   Number of Video Inputs:       Number of inputs available may include cameras, recorded video sources, etc.  
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Maximum Frame Rate:       Frames that can be transmitted or broadcasted per unit time, typically frames per second. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Video Storage Capacity:       Storage capacity of digital video storage on a hard disk or other medium. In cases where this specification is dependent upon the video format or resolution being used, the maximum possible storage is given. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Interface & Protocol
   LAN / WAN Technology:       
   Your choices are...         
   10baseT Ethernet       10base-T (also called twisted pair Ethernet) is one adaptation of the IEEE 802.3 (Ethernet) standard for local area networks that uses twisted-pair cables with maximum lengths of 100 meters. The cable is thinner and more flexible than the coaxial cable used for the 10Base-2 or 10Base-5 standards. Cables in the 10Base-T system connect with RJ-45 connectors. The 10Base-T system operates at 10 Mbps and uses baseband type of transmission. 
   10base2 Ethernet       10base 2E Ethernet configurations use coaxial cable instead of twisted wire. 
   Fast Ethernet       Fast Internet is the 100 Mbps Ethernet Specification. The standards for this protocol were developed by the IEEE 802.3 committee. The general designation for these standards is 100Base-T. There are different alternatives that are used with different transmission media. The group called 100Base-X alternatives use two physical links between nodes (one for transmission and one for reception). The 100Base-T group uses the MAC (Medium Access Control) protocol. The media used in each is as follows:
  • 100Base-TX. Implemented with 2 pairs of shielded twisted pair (STP), or 2 pairs of high-quality (Category 5) unshielded twisted pair (UTP).
  • 100Base-FX. Implemented with 2 optical fibers.
  • 100Base-T4. Uses four twisted pair lines (Category 3, 4, or 5 UTP) between nodes. Transmission makes use of three pairs.
 
   ISDN       Integrated Services Digital Networks (ISDN) is a standard that supports very high data rates (100s of Mbps) and uses a packet-switching technology. The standards for ISDN are defined by ITU-T (International Telecommunication Union - Telecommunication Standardization Sector). ISDN is a system of digital phone connections that has been available for many years that allows data to be transmitted simultaneously across the world using end-to-end digital connectivity. 
   Token Ring       Token rings are a medium access control technique for ring topology. The token ring technology is based on the use of a small frame, called token, that circulates when all stations are idle. A host may transmit by seizing the token, inserting a packet onto the ring, and then retransmit ting the token. Token ring is a MAC (Medium Access Control) protocol. 
   Novell       Novell is a software company that produces Netware®, a widely used program in corporate LANs and WANs. 
   Wireless       Wireless network connections may include satellite networking. 
   Other         
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Communication Protocol:       
   Your choices are...         
   TCP/IP       Transmission Control Protocol / Internet Protocol is a standard industry suite of protocols for document and data transfer including: FTP: File Transfer Protocol, used for data transfer, Telnet: Remote execution protocol for other TCP/IP hosts, ARP: Address Resolution Protocol, used to obtain hardware addresses of co-networked TCP/IP hosts, UDP: User Datagram Protocol, transport protocol for applications with small delivery packets, and other resident file management, error detection, and data transmission protocols.  TCP/IP is not widely used for video transfer per se, due to the attendant flow control and bandwidth considerations. 
   HTTP       HyperText Transfer Protocol. (HTTP) is a standard transmission protocol on the World Wide Web. It is a very versatile protocol for transfer of text files, graphics, audio and video information; it typically depends upon a Web browser. 
   PPP       Point-to-Point Protocol (PPP) is a serial line protocol for transmission of TCP/IP. It was developed as an enhanced version of the Serial Line Interface Protocol (SLIP), which was designed for low rate serial transmission. 
   RTP       Real Time Protocol (RTP) is an Internet standard for real-time transmission of audio and video information; it contains provisions for loss detection, timing synchronization, and identification tags. 
   VDP       Video Datagram Protocol (VDP) is an enhanced RTP with an additional control channel to coordinate the content being sent on the streaming channel. 
   RSVP       Research ReSerVation Protocol (RSVP) is a transmission standard proposed by the Internet Engineering Task Force (IETF). Priorities and bandwidth parameters are requested over IP networks (such as the World Wide Web) and assignments are given for streaming applications such as audio and video. 
   RTSP       Real Time Streaming Protocol (RTSP) is an open, real-time protocol that has been endorsed by a group of Internet industry companies for multimedia content streaming. 
   Other       Unlisted, specialized, or proprietary protocol configuration. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Control / Management Interface:       
   Your choices are...         
   RS232       RS 232 is an interface between data terminal equipment and data communications equipment employing serial binary data interchange. 
   RS422       RS422 is a balanced serial interface for the transmission of digital data. It was designed for greater distances and higher Baud rates than RS232. 
   RS485       RS485 is a balanced serial interface for the transmission of digital data. The advantage of a balanced signal is the greater immunity to noise. The difference between RS422 and RS485 is that RS485 can be transformed into a multi-point application. 
   Web-based       Control interface via the Internet. 
   Wireless       Any wireless control and configuration interface. 
   Other       Unlisted interface. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Video Format
   Video Format       
   Your choices are...         
   NTSC       The National Television System Committee (NTSC) format is a 525-line color-television standard used in North America and Japan. Approximately 480 lines hold image information and the remaining lines contain synchronization, time delay, and other encoded information such as closed caption text. The standard frame rate is 30 frames per second. 
   PAL       Phase Alternate Line (PAL) is the European 625-line, 25-frame per second color-television standard. It is a modification of NTSC systems used with the CCIR video norm. The phase of the color carrier is shifted 180° every image line, making the PAL system less sensitive to color signal phase distortion. It provides somewhat lower vertical resolution than the NTSC system and requires complex processing equipment. 
   SECAM       SEquential Color And Memory, translated from the French SEquential Couleur Aver Memoire (SECAM) is a composite color transmission system where two color difference signals are transmitted on two separate lines. Memory is required to obtain both color difference signals for color decoding. This system is used in France and many East European, African, and Asian countries. 
   RS-170       RS-170 is the standard black-and-white video format used in the United States (525 lines, 30 frames per second). It was originally defined by the EIA (Electronic Industry Association) standards organization for use in North America, Japan, and a few other parts of the world. The EIA standard defines only the monochrome picture component but is mainly used with NTSC or PAL color encoding standards. 
   RS-330       RS-330 is a standard recommended by EIA for signals generated by closed-circuit TV cameras scanned at 525 lines, 60 frames per second and interlaced 2:1. The standard is similar to RS-170, but H-sync pulses are absent during V-sync. Equalizing pulses are not required and may be added optionally during the V-blanking interval. This standard is also used for color television station electrical signals. 
   CCIR       CCIR (Comité Consultatif International des Radio Communications, or International Radio Consultative Committee) is an international committee that sets and governs video signal standards. Merged with the ITU and became the ITU-R radio communications division. 
   Other       Any unlisted video format. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Video Compression
   Video Compression       
   Your choices are...         
   JPEG       Joint Products Experts Group (JPEG) is a standard still image format for network and Internet image transfer and download.  It is best suited for photographic and natural images. Compression ratios of 20:1 are possible with good fidelity; higher ratios can accrue looses, but 100:1 can be used for thumbnails or previews. 
   Motion JPEG       Motion JPEG (M-JPEG) is an informal reference to applying JPEG to individual frames of a video sequence. There is no governing standard; compression ratios of 6:1 to 10:1 are most common. 
   H.261       H.261 is a standard that optimizes bandwidth, particularly for applications such as teleconferencing and videophones. It uses somewhat less CPU power than MPEG compression formats, and is most-suitable for relatively still or slow-moving images rather than high-speed motion. 
   H.263       H.263 is an improved standard built on H.261 with enhancements such as half pixel precision, better error repair options, and more available resolutions. 
   MPEG-1       Motion Products Experts Group compression / decompression format 1 (MPEG 1) is targeted for bandwidth efficiency in the 1 Mbps range. VHS quality at 30 frames per second. 
   MPEG-2       MPEG-2 is a standard for higher resolution audio and video transmission. The bandwidth used by MPEG-2 is 4-15 Mbps and is intended for broadcast quality video. 
   MPEG-4       MPEG-4 compression format was developed for videoconferencing at relatively low data rates, such as 64 kbps or less. 
   Indeo       Intel data compression and video playback format works with real time video (RTV). 
   AVI       Audio Video Interleaved (AVI) recording and compression technique was developed by Microsoft for Video-for-Windows (VFW). 
   Other / Proprietary       Any unlisted or proprietary compression format. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Features
   Audio Capability?       The server can record and stream or send audio information as well as video. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Switching Capability?       The server has automatic or programmable switching modes to sequence through video inputs. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   E-mail Capability?       The server has functionality to e-mail video and/or audio to mailing lists on standard e-mail applications. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Microsoft® IE / Netscape® Compatible?       The server is designed for compatibility of use with Microsoft® Internet Explorer, and Netscape® Navigator browsers. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Event Detection / Triggering?       The server has a recording or streaming mode that can be triggered by a captured event or user-specified signal or message. It may also include visual or audible alarm signals. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Password Security?       The server has access-controlled security using passwords, frequently with multiple levels. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   External Device Control?       Provisions for controlling external devices such as VCRs, switchers, or camera functions such as Pan / Tilt / Zoom. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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