Communications Specialties Pure Digital FIBERLINK 3800 Series 사용자 설명서 - 페이지 6

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8. Connect the various input signals to the proper positions on the removable

terminal blocks. Be certain to check all connections and assure that inputs

and outputs are not intermixed. Refer to the next section for the various

connections.

9. The system should now be operational.

NOTE: 3820 Card Only:

Optical 1 = Video/Data

Optical 2 = Data

System Switch Settings

The data interface circuit used in this product has external switches that are used

to configure the various signal options. These are preset to RS-232 at the time of

shipment. If changes are required, the positions of these switches must be changed

in accordance with the following table.

Data Input/Output Plug-in

Switches 1,2,3,7,8,9 and 10 are used to select the desired protocol. Positions for

these are as follows:

Protocol

RS-232

RS-422/485 4-wire

point-to-point

RS-485 2-wire

auto xmit/receive

RS-485 4-wire

multidrop

RS-485 2-Wire

Zero xmit/receive

Switches 4, 5 and 6 are used only in the RS-485 configurations to select the

auto time interval that the unit will wait before switching back to the receive

mode (tri-state). Refer to the table on the following page for switch positions.

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