Communications Specialties Pure Digital FIBERLINK 3800 Series 사용자 설명서 - 페이지 5

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INSTALLATION INSTRUCTIONS

Installation Procedure

The Pure Digital Fiberlink 3800 Series transmission systems are normally preset for

immediate use with the data protocol set to RS-232. If a different protocol is de-

sired, it can be easily selected using the flip switches located on the back panel of the

unit. (See table on next page.) There are indicator LEDs on the units for monitoring

purposes and various user selectable options for the various signals accommodated.

The following instructions describe the typical installation procedure and the function

of the LED indicators.

1. The various options, as already mentioned, have been preset, with data

protocol set as RS-232. If RS-422 or RS-485 (2

or 4 wire) protocol is desired instead, please refer

to instructions on the following page.

2. If connecting more than one Fiberlink unit on one

line (daisy chaining) while in either RS-422 or RS-

485 4-wire modes, you must set the unit to the RS-485 4-wire multidrop

mode.

3. Connect the video source to the video input BNC connector on

the transmitter unit.

4. Connect the video output BNC on the receiver unit to the coax cable BNC

connector.

5. Connect the fiber optic cable or cables between the two units.

6. Apply power to both Pure Digital Fiberlink units. Refer to Figure 1 for DC

power connections.

7. When power is applied, the green POWER LED will light, indicating the

presence of operating power. The green LINK LED should also light, indicat-

ing the presence of a received optical signal. Note that the card-cage version

will have a third red LED for indicating the presence of an alarm condition.