ZETRON 025-9581M, Руководство по установке и обслуживанию

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Appendix A: Details of Model 6203/6204 Hardware
164 025-9581M
This jumper should be in the position that matches the serial data source on the mating
connector. The Model 6203 will always use Position A. An alternate connection is
supplied to support some older Zetron equipment which uses pin 4 of the serial cable for
received data.
Jumper JP14 (Source of Audio to PA)
This jumper selects the source of the voice audio signal that is put out on the PA pins
when the Model 6203 is handling a Dispatcher Announcement. The Station Transponder
unit will arrive from the factory with a “summing” jumper installed that uses all the pins of
JP14 and sums the inputs from both the normal (J5, pin-3) and auxiliary audio (J4, pin-4)
inputs. For all types of FSA systems, leave the summing jumper in.
If the Model 6203 is being used as a Model 6 replacement, then the summing jumper
should be replaced with a normal, single jumper positioned in
A or B , as appropriate.
There are three positions for this jumper:
Position A = PA audio taken from the normal 2 or 4 wire receive
input (J5, pin 3)
Position B = PA audio taken from the auxiliary audio input (J4, pin-4)
No jumper = No audio connected to the PA
If no jumper is installed, the Model 6203 will still output alert tones to the PA but no voice
audio will be possible.
Jumper JP15 (Auxiliary Audio RCV Impedance)
This jumper selects the impedance of the 2-wire auxiliary receive audio. There are three
choices for the position of this jumper:
Position A = is 600 Ω
Position B = is 10 k
Ω
No Jumper = the same as position “B” (10 k Ω )
This jumper should be in the “B” position (10 k Ω ) for one Model 6203. If there is a Model
6204 whose auxiliary audio is connected in parallel to the primary Model 6203, then the
Model 6204 jumper should also be in the “B” position. (10 k
Ω ).
Power Supply Board Jumpers
The four jumpers on this circuit board select whether the four sense inputs are pulled-up to
+12 Vdc through 1.5-k
Ω resistors or left floating. (See Figure 51 on page 155 for jumper
locations.)
For contact closures and signals from open collector outputs, this jumper should be in the
“B” (Pulled-up) position. For voltage level inputs, this jumper should be in the “A”
(floating) position. If the “A” position is used, then both the positive and negative pins for
a sense input (for example J11 and J12) need to be connected to the sensor. If the “B”
position is used, then connecting the negative pin of the sense input to ground activates the