Gai-tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telep Uživatelský manuál stáhnout pdf (Strana 144)

Pl1877A – Radio Installation PL1877A Microprocessor Radio Telephone Interconnect

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If the PL1877A is to be dc-powered, connect the red lead in the dc power cable to TB2-1 and the black

lead to TB2-4; connect the other end of the dc power cable into the 5-pin DIN connector (DC PWR), on

the rear panel of the PL1877A. If the optional ac transformer and cable are to be used, install the ac

power connector into the 5-pin DIN connector (DC PWR), on the rear panel of the PL1877A.

Earth Ground – Run the supplied #12 or larger wire from the GND terminal on the rear of the PL1877A

to the base station chassis ground. This wire must be as short as practical, not coiled, and fastened

securely to the base station chassis. After this connection has been made, the installation is complete.

Using the Parameters Modification Procedure in this manual, set the following required parameter

settings:

Parameter Setting

1 0 (de-emphasis)

2 1, JU202 OUT (mid-level source)

3 0 (internal carrier detect)

4 Don’t care

5 0 (internal squelch for carrier detect)

6 0 (No PL detect input required)

1 (PL detect input required)

7 0 (PL detect input is active low)

1 (PL detect input is active high)

9 1 (simplex)

10 0 (active low PTT sense input

All other parameters are programmed as applicable to system requirements. Refer to “Level Setting” in

the “Parameters Modification Procedure” section of this manual.

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Gai-tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telep Uživatelský manuál Strana 144