Section 5. Installation
5-23
Connections to a Motorola MSR2000 Base/Repeater
For:
Zetron Model 37-MAX
To:
Motorola MSR2000 Base/Repeater
Using:
709-7179 Generic Radio Cable
37-MAX End
Function
J1
pin#
Wire
Color
Radio End
Connection/Notes
+12 volts DC
1
RED
E12 (A+)
Ground
2
BLACK
Ground Lug
Discriminator Input
3
WHITE
Audio Squelch, pin-7
Ground
4
BRAID
No connection
TX Audio Output
5
BLUE
Audio Squelch, pin-16
Ground (spare)
6
N/C
PTT Output
7
two 1N4148
diodes
Cathodes (banded ends) of both diodes
joined to Orange wire, anodes
(unbanded) connected to Squelch Gate
pin-3 and Squelch Gate pin-18
Ground
8
BROWN
No connection
COR Input
9
YELLOW
Audio Squelch, pin-20
CTCSS/DCS Encode
10
GREEN +
10 k
Ω
Resistor goes on radio end, connects to
Coded Squelch, pin-21
Motorola MSR-2000 Base / Repeater Configuration
1. Remove all jumpers on the RF control chassis backplane except JU1, JU4, JU5, and JU9.
2. Only the R1 Audio and Station Control modules are required. Make the following
changes to the control cards:
R1 Audio:
Install JU1 and JU101. Remove JU2, JU103, JU104, JU105, CR2, and
CR106
Station Card: Install JU2 through JU8. Remove JU9 through JU11.
Line Driver: Remove JU15 and CR3.
Summary of Contents for 37-MAX
Page 72: ...Section 6 Repair 6 6 MODEL 37 MAX REPEATER PAL 702 9808A Schematic 1 3...
Page 73: ...Section 6 Repair 6 7 2 3...
Page 74: ...Section 6 Repair 6 8 3 3...
Page 75: ...Section 6 Repair 6 9 MODEL 37 MAX REPEATER PAL 702 9808A Silkscreen...
Page 76: ...APPENDIX A PROGRAMMING LOG A 1 OVERVIEW A 1 SYSTEM PROGRAMMING A 2 USER PROGRAMMING A 3...
