Video Grabber DGR-1000 User Manual - v. 1.4 (FW 1.9)
11
3.5.
Network connection
Video Grabber DGR-1000 has two RJ45 ports, named LAN 1 and LAN 2. When both interfaces are
configured and active (connected) then the same data is sent through both of them. This way two
independent systems can receive the same data from the Video Grabber using two physically separate
connections thus achieving redundancy.
Device can work in 10, 100 and 1000 Mbit/s network, however when higher framerates and resolutions
are in use 1000 Mbit/s network may be required to comply with higher data rates. Video Grabber
detects type of network automatically as long as network connection cable complies with network
standard CAT5e
2
or higher.
10 Mbit/s
100 Mbit/s
1000 Mbit/s
Figure 9: Indication of different port speeds on the LEDs:
10 Mbit/s – both LEDs on, 100 Mbit/s – right LED on, 1Gbit/s – left LED on
2
The specification for category 5 cable was defined in ANSI/TIA/EIA-568-A, with clarification in TSB-95. These
documents specify performance characteristics and test requirements for frequencies up to 100 MHz. Cable
types, connector types and cabling topologies are defined by TIA/EIA-568-B. Nearly always, 8P8C modular
connectors (often referred to as RJ45 connectors) are used for connecting category 5 cable. The cable is
terminated in either the T568A scheme or the T568B scheme. The two schemes work equally well and may be
mixed in an installation so long as the same scheme is used on both ends of each cable.