Bioscrypt Inc. 4GCRO Manual Do Utilizador
Part # 430-4G-050-00-005
© 2011 - L-1 Identity Solutions Inc. All rights reserved
© 2011 - L-1 Identity Solutions Inc. All rights reserved
Planning the Installation
transmission line problems at the unterminated ends. A true daisy chain configuration avoids
these problems.
these problems.
NOTICE
The device on the end of the network should be
terminated with a 120 ohm resistor
terminated with a 120 ohm resistor
.
Figure 2-3 Network Topologies Star and Daisy Chain Configurations
NOTICE
A Daisy configuration is recommended over a Star configuration.
2.1.6.2 ETHERNET
If your system is to be configured for use over Ethernet, the wiring will be slightly different.
Communication cables for Ethernet logically form a straight line bus but the more devices on
that bus, the less efficient the network becomes due to increased collisions, and the weaker
the signal will get over distance. Repeaters can be used to boost the signal strength;
however, a better solution is to place switches at intermediate positions along the bus. The
most common Ethernet topology in use today is the star configuration with a hub or switch in
the center.
Communication cables for Ethernet logically form a straight line bus but the more devices on
that bus, the less efficient the network becomes due to increased collisions, and the weaker
the signal will get over distance. Repeaters can be used to boost the signal strength;
however, a better solution is to place switches at intermediate positions along the bus. The
most common Ethernet topology in use today is the star configuration with a hub or switch in
the center.
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