Section 5. Installation
5-14
Connection to an EF Johnson CR1010
For:
Zetron Model 37-MAX
To:
EF Johnson CR1010
Using:
709-7179 Generic Radio Cable
37-MAX End
Function
J1
pin#
Wire
Color
Radio End
Connection/Notes
+12 volts DC
1
RED
Logic Drawer, pin-15, +13.8 V
Ground
2
BLACK
Logic Drawer, pin-13, Ground
Discriminator Input
3
WHITE
Logic Drawer, pin-5, CG Audio
Ground
4
BRAID
No connection
Ground (spare)
6
N/C
PTT Output
7
ORANGE
Logic Drawer, pin-23, PTT
Ground
8
BROWN
Ground
COR Input
9
YELLOW
Logic Drawer, pin-19, fast squelch
TX Audio Output
5
BLUE +
56 k
Ω
Logic Drawer, pin-18, TX Tone CG
CTCSS/DCS Encode
10
GREEN +
15 k
Ω
Logic Drawer, pin-18, TX Tone CG
CR1010 Configuration
1. Remove the brown wire from receiver going to the exciter transmit audio (pin 1).
2. Add a 10 k
Ω
resistor across R123 in the exciter.
3. Add a 56 k
Ω
resistor to the radio end of the blue TX audio wire, and a 15 k
Ω
to the radio
end of the green CTCSS/DCS encode wire. The other end of both resistors are tied to the
TX Tone CG input on the Logic drawer (pin-18).
NOTE: This configuration does not use the deviation limiter in the exciter. It does provide a
higher quality repeat audio than the alternate hookup that follows this.
Содержание 37-MAX
Страница 72: ...Section 6 Repair 6 6 MODEL 37 MAX REPEATER PAL 702 9808A Schematic 1 3...
Страница 73: ...Section 6 Repair 6 7 2 3...
Страница 74: ...Section 6 Repair 6 8 3 3...
Страница 75: ...Section 6 Repair 6 9 MODEL 37 MAX REPEATER PAL 702 9808A Silkscreen...
Страница 76: ...APPENDIX A PROGRAMMING LOG A 1 OVERVIEW A 1 SYSTEM PROGRAMMING A 2 USER PROGRAMMING A 3...