GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual User Manual
Page 158
Pl1877A – Radio Installation
PL1877A Microprocessor Radio Telephone Interconnect
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Earth ground - Run the supplied # 12 black ground wire from the PL1877A ground terminal to the
repeater chassis frame. This wire must be as short as practical, not coiled, and connected securely to the
chassis.
Required Parameter Settings – Using the “Parameter Modification Procedure” section of this manual
set the following parameters:
Parameter Setting
1 0
(de-emphasis)
2
1, JU202 OUT (low-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
1 (PL detect input is active high)
If parameter 6 = 0, parameter 7 = don’t care
9
0 (half duplex)
10
0 (active low PTT sense input
All other parameters are programmed as applicable to system requirements. Refer to the Parameter
Modification Procedure on page 77 and then the “Level Setting” section on page 17 of this manual.
Intercabling Diagram – Flexar Repeater to PL1877A