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Chapter 15: Appendix
(4) Relay connector
This connector is used to make a connection between coaxial cables. Although the repeater is used
to extend a segment, a relay connector is used to extend a cable in the same segment. Be careful
because the use of multiple relay connectors on the same line may change the electrical resistance
of the coaxial cable. (We recommend not using more than one relay connector in the same line.)
(5) Terminator (terminating resistor)
This is a device attached to the two ends of a cable, in order to prevent reflection of the signals in a
bus type arrangement. Terminators should always be connected to the ends of the cable. Without
termination device, signal reflection (collisions) may occur and the network may go down. Both "J"
type (used with a tap type transceiver) and "P" type (used for a connector type transceiver) termina-
tors are available. Install the terminators at one of the marks on the outer insulation of the coaxial
cable.
15
Relay connector for Ethernet use
Terminator (terminating resistor) for Ethernet use
15-36
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