Blackbox PI320A-R3, Руководство пользователя, Страница: 8 / 22

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DISTANCE EXTENDERS
These multi-purpose units have the ability to remote your receiving device up
to 4000 feet (1219.2 m) from the sending device. There are two basic types of
Extenders: serial and parallel. Each serial or parallel Extender comes in 115-
and 230-V input, output, and universal models. The Extenders are available in
kits (parallel-parallel or serial-serial), or you can order them separately to
accommodate a mixed application.
Each of the universal modules can be set to be either an input or an output
device. The non-universal modules are preset during assembly as transmitting
(input) devices or receiving (output) devices. The serial modules are switch-
selectable for either DTE or DCE application, eliminating the need for special
cables and preventing confusion in installation. Connecting the units
together has been made easier by using straight-through Category 5 cable,
connected to either the RJ-11 jack or the 4-screw terminal block.
2. Introduction