Section 5. Installation
5-28
Connections to a Tait T300 series Base/Repeater
For: Zetron Model 37-MAX
To: Tait T300 series 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 Pin 8, +VE 12V
Ground 2 BLACK Pin 5, Ground
Discriminator Input 3 WHITE Pin 6, RX AF
Ground 4 BRAID No connection
TX Audio Output 5 BLUE Pin 7, TX AF
Ground (spare) 6 N/C
PTT Output 7 ORANGE Pin 10, TX Key
Ground 8 BROWN No connection
COR Input 9 YELLOW Pin 20, RX GATE, see Note 2
CTCSS/DCS Encode 10 GREEN Pin 2, CTCSS ENCODE
Tait T300 Configuration Notes
1. All connections are made to the radio on 25-pin D-connector. Additional jumper to be
made at the D-connector are:
pin 1 to pin 4 = Earth to one side RX 600Ω
pin 1 to pin 3 = Earth to one side TX 600Ω
pin 1 to pin 5 = Earth
2. Check that the RX GATE lead goes to the RX GATE connection on the Tait Base Station
you are using. This lead has been left unconnected on some models.
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