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USER MANUAL FOR HARDWARE REV 3.11    

07-APR-2018      

PAGE 7 

3.1.8

 

PORT CONNECTOR & PIN 1 

Each repeater port comes out to a 2x5 male header.  This header is typically connected 1:1 into a DB9 
Female  connector,  but  the  user  may  also  make  a  custom  cable/adaptor  for  their  own  equipment  if 
desired. 

 Connector Selection:  Due to the tight spacing of the board, it is important to select mating connectors 
that do not exceed the width of the male pin alignment blocks, or you risk mechanical interference with 
the port 2 header.  For custom cables we suggest using connector block 

952-2033-ND from Digikey

, or a 

similar variant.  

STANDARD IDC RIBBON CABLE CONNECTORS WILL NOT FIT. 

Pin 1 is located in the bottom left corner as shown above in section 3.1. When using ICS-CTRL provided 
DB9 connectors, will correspond with the brown wire.   

CONNECTOR PINOUT:  

1-

 

CTCSS ENCODE OUTPUT 

2-

 

CTCSS INPUT FROM RX RADIO 

3-

 

PUSH TO TALK (OPEN COLLECTOR) 

4-

 

AUDIO OUTPUT 

5-

 

AUDIO INPUT 

6-

 

GROUND 

7-

 

COS INPUT FROM RX RADIO 

8-

 

GROUND 

9-

 

GROUND 

10-

 

GROUND (DB9 SHELL) 

3.2

 

OUTPUT AMPLIFIER GAIN 

This is a multi-turn, 10kΩ potentiometer that can be used to further adjust the output audio amplitude.  
It is recommended to leave this potentiometer at the midpoint value for normal operations. 

3.3

 

BUILT-IN AUDIO 

The system contains a 

SGTL5000 Audio codec chip

 which provides stereo input and output capability so 

you won’t require a USB sound card to have receive audio capability. 

The stereo audio is split into 2 mono channels, channel 1 uses the RIGHT audio channel and channel 2 
uses the LEFT channel.   

Software is required to provide the mixing of the channels should you desire to blend channel 1 and 2 
audio. Any base images provided by ICS-CTRL will have this built in by default. 

 

 

Содержание PI-REPEATER-2X

Страница 1: ...ur station including simplex duplex 2 independent repeaters a voting station etc Anything you can imagine that can be done with 2 receive radios and 2 transmit radios is possible We use multiturn pote...

Страница 2: ...lect 6 3 1 5 Output Audio Adjust 6 3 1 6 CTCSS Active High Low 6 3 1 7 Port Connector Pin 1 7 3 2 Output amplifier gain 7 3 3 Built in Audio 7 3 4 Analog to Digital Converter 8 3 5 GPIO Expansion 8 3...

Страница 3: ...tains the following features which will be discussed in more detail in the following sections 2 independent repeater channels o Selectable High Low COS COR o Selectable High Low CTCSS o Selectable Fla...

Страница 4: ...your radio typically active low Selectable High Low CTCSS o Select the switch setting as shown in the following sections to select the polarity of active signaling for your radio typically active low...

Страница 5: ...eeds confirmed This is an 18 turn 10k potentiometer multiple turns are required to effect a large change in amplitude while fractional turns yield fine resolution adjustments The input audio should be...

Страница 6: ...large change in amplitude while fractional turns yield fine resolution adjustments This function is used to adjust the amplitude of the repeated audio being sent to your transmitter radio This output...

Страница 7: ...ovided DB9 connectors will correspond with the brown wire CONNECTOR PINOUT 1 CTCSS ENCODE OUTPUT 2 CTCSS INPUT FROM RX RADIO 3 PUSH TO TALK OPEN COLLECTOR 4 AUDIO OUTPUT 5 AUDIO INPUT 6 GROUND 7 COS I...

Страница 8: ...consumes most of the signals from the 40 pin header an additional 8 pins are made available through a 16 pin header This header connects to PORT A on a MCP23017 IC and provides input circuit protectio...

Страница 9: ...back a ribbon cable while having the GPS unit installed but the clearances are tight and the tight bend radius may damage your flex cable have a spare flex cable and proceed with caution NOTE UART GP...

Страница 10: ...y It is recommended to utilize MCP23S17 gpio expander device if a Chip Select source is needed for multiple SPI devices are desired The MCP23S17 device is recommended due to wide usage and support pro...

Страница 11: ...HEADER As it has been anticipated that users may wish to design custom daughter boards the primary 40 pin header has been left exposed so the user may design standard form factor boards It is importa...

Страница 12: ...Active Low CTCSS GPIO25 Active Low Audio input FE Pi Left Channel Audio output FE PI Left Channel GPIO PINS GPA0 GPIO496 GPA1 GPIO497 GPA2 GPIO498 GPA3 GPIO499 GPA4 GPIO500 GPA5 GPIO501 GPA6 GPIO502...

Страница 13: ...WWW ICS CTRL COM USER MANUAL FOR HARDWARE REV 3 11 07 APR 2018 PAGE 13 5 SCHEMATICS EMBEDDED PDF open for high resolution copy...

Страница 14: ...TS NOT RESPONDING BELOW 12V Affects serial numbers 1813XXXX and lower The pull up resistors for the COS R10 and R19 and CTCSS R12 and R17 inputs are incorrect value at 1 0 kohm These resistors need to...

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