Connectors Location and Pinout

Drawing of front panel showing the location of connectors, LED indicators and switch

Picolo.net HD1 front panel

Property Value
Name SDI AUDIO/VIDEO IN
Type 2-pin female receptacle, right-angled PCB-mount, BNC connector
Usage HD/3G-SDI audio/video input

Pin Signal Usage
Center SDI IN SD/HD/3G-SDI Audio/Video Input
Outer GND Ground
Property Value
Name HDMI AUDIO/VIDEO IN
Type HDMI type A (full size) receptacle (female) connector
Usage HDMI audio/video input

Property Value
Name HDMI AUDIO/VIDEO OUT
Type HDMI type A (full size) receptacle (female) connector
Usage HDMI audio/video output

Property Value
Name AUDIO IN
Type Black TRS 3.5mm jack socket connector
Usage Analog audio input

Pin Signal Usage
Ring AUDIO IN - Right channel Unused
Tip AUDIO IN - Left channel Analog audio input
Sleeve GND Chassis ground
Property Value
Name AUDIO OUT
Type Black TRS 3.5mm jack socket connector
Usage Analog audio output

Pin Signal Usage
Ring AUDIO OUT - Right channel Unused
Tip AUDIO OUT - Left channel Analog audio output
Sleeve GND Chassis ground
Property Value
Name COM
Type 8-pin (1x8) 3.81 mm pitch terminal socket
Usage RS-232/RS-422/RS-485 serial COM port

Pin Signal Usage
1 RxD- 422:RxD-(A)input
2 RxD+ 422:RxD+(B) input
3 (Rx/)TxD- 485:Data-(A) input/output 422:TxD-(A)output
4 (Rx/)TxD+ 485:Data+(B)input/output 422:TxD-(B)output
5 GND Cable shield
6 GND Cable shield
7 RxD 232:RxD input
8 TxD 232:TxD output
Property Value
Name GPIO
Type 4-pin (1x4) 3.81 mm pitch terminal socket
Usage Alarm input and relay output

Pin Signal Usage
1 INA Alarm Input - Terminal A
2 INB Alarm Input - Terminal B
3 OUTA Relay Output - Terminal A
4 OUTB Relay Output - Terminal B
Property Value
Name POWER IN
Type 2-pin 3.81mm pitch terminal socket
Usage DC power input

Pin Signal Usage
1 GND DC Power Input - Ground terminal
2 + DC Power Input - Positive terminal