Custom Products for the Repeater Builder

CT-30 CTCSS Board
Pin assignments, function, signal flow direction, notes, and limitations.

PINFunctionDirectionNotes and limitations
1PL logic output (active low)Out
2Receive audio input - to high pass filterInOperates only in RX mode
3Discriminator audio inputInConnects also to pin 16
4CTCSS tone outputOutOperates only in TX mode
5Receive audio output - from HP filterOutOperates only in RX mode
6Transmit audio output - from HP filterOutOperates only in TX mode
7Spare - can be routed anywhere desiredIn/OutCan connect to A - B outputs or elsewhere
8Transmit audio input - to HP filterInOperates only in TX mode
9RX - TX mode switchInGround for TX mode (encode only)
10PL logic output (active high)OutCurrent limited - includes a pull-down
11Spare - can be routed anywhere desiredIn/OutCan connect to A - B outputs or elsewhere
12Spare - can be routed anywhere desiredIn/OutCan connect to A - B outputs or elsewhere
13Power supply positive (+7 to +16 VDC)In7 - 16 VDC typical, up to 24 VDC maximum
14PTL (push to listen)InSee FX465 data sheet for operation
15Spare - can be routed anywhere desiredIn/OutCan connect to A - B outputs or elsewhere
16Discriminator audio outputOutConnects to pin 3
17N/C
18Ground  
19Ground  
20Ground  
21Ground  
22Ground  
23Ground  
24Spare - can be routed anywhere desiredIn/OutCan connect to A - B outputs or elsewhere
25Spare - can be routed anywhere desiredIn/OutCan connect to A - B outputs or elsewhere
    
NOTE:Use outputs A - B only when primary logic outputs above cannot be used! NOTE:These can be tied to "Spare" pins 7, 11, 12, 15, 24, and 25
AAlternate Open Collector CTCSS output (active high)Out
BAlternate Open Collector CTCSS output (active low)Out

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Product of Kevin Custer - W3KKC, all rights reserved.
Specifications may change without notice.
HTML December 7, 2015, W3KKC All Rights Reserved!