EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 4
Title "cat-a-hack"
Date ""
Rev "r1"
Comp "Vasile Vilvoiu (YO7JBP)"
Comment1 "CAT and audio hackable isolation board"
Comment2 "UART interface"
Comment3 ""
Comment4 ""
$EndDescr
Text GLabel 1900 1800 2    50   Input ~ 0
USB_D-
$Comp
L power:GND #PWR?
U 1 1 5FAB43A9
P 1100 2700
AR Path="/5FAB43A9" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FAB43A9" Ref="#PWR03"  Part="1" 
F 0 "#PWR03" H 1100 2450 50  0001 C CNN
F 1 "GND" H 1105 2527 50  0000 C CNN
F 2 "" H 1100 2700 50  0001 C CNN
F 3 "" H 1100 2700 50  0001 C CNN
	1    1100 2700
	1    0    0    -1  
$EndComp
Text GLabel 1900 1900 2    50   Input ~ 0
USB_D+
$Comp
L Power_Protection:SN65220 U?
U 1 1 5FABC8C9
P 1750 3200
AR Path="/5FABC8C9" Ref="U?"  Part="1" 
AR Path="/5F9E7705/5FABC8C9" Ref="U3"  Part="1" 
F 0 "U3" H 1750 3425 50  0000 C CNN
F 1 "SN65220" H 1750 3334 50  0000 C CNN
F 2 "Package_TO_SOT_SMD:SOT-23-6" H 2100 3050 50  0001 L CNN
F 3 "http://www.ti.com/lit/ds/symlink/sn65220.pdf" H 1750 3350 50  0001 C CNN
	1    1750 3200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FABC8CF
P 1650 3500
AR Path="/5FABC8CF" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FABC8CF" Ref="#PWR04"  Part="1" 
F 0 "#PWR04" H 1650 3250 50  0001 C CNN
F 1 "GND" H 1655 3327 50  0000 C CNN
F 2 "" H 1650 3500 50  0001 C CNN
F 3 "" H 1650 3500 50  0001 C CNN
	1    1650 3500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FABC8D5
P 1850 3500
AR Path="/5FABC8D5" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FABC8D5" Ref="#PWR06"  Part="1" 
F 0 "#PWR06" H 1850 3250 50  0001 C CNN
F 1 "GND" H 1855 3327 50  0000 C CNN
F 2 "" H 1850 3500 50  0001 C CNN
F 3 "" H 1850 3500 50  0001 C CNN
	1    1850 3500
	1    0    0    -1  
$EndComp
Text GLabel 1150 3200 0    50   Input ~ 0
USB_D+
Text GLabel 2350 3200 2    50   Input ~ 0
USB_D-
Text GLabel 1300 3950 0    50   Input ~ 0
USB_D+
Text GLabel 2200 3950 2    50   Input ~ 0
USB_D-
$Comp
L power:GND #PWR?
U 1 1 5FABC8DF
P 1750 4050
AR Path="/5FABC8DF" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FABC8DF" Ref="#PWR05"  Part="1" 
F 0 "#PWR05" H 1750 3800 50  0001 C CNN
F 1 "GND" H 1755 3877 50  0000 C CNN
F 2 "" H 1750 4050 50  0001 C CNN
F 3 "" H 1750 4050 50  0001 C CNN
	1    1750 4050
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R?
U 1 1 5FABC8E5
P 1550 3950
AR Path="/5FABC8E5" Ref="R?"  Part="1" 
AR Path="/5F9E7705/5FABC8E5" Ref="R1"  Part="1" 
F 0 "R1" V 1450 3950 50  0000 C CNN
F 1 "15k" V 1650 3950 50  0000 C CNN
F 2 "" H 1550 3950 50  0001 C CNN
F 3 "~" H 1550 3950 50  0001 C CNN
	1    1550 3950
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R?
U 1 1 5FABC8EB
P 1950 3950
AR Path="/5FABC8EB" Ref="R?"  Part="1" 
AR Path="/5F9E7705/5FABC8EB" Ref="R2"  Part="1" 
F 0 "R2" V 1850 3950 50  0000 C CNN
F 1 "15k" V 2050 3950 50  0000 C CNN
F 2 "" H 1950 3950 50  0001 C CNN
F 3 "~" H 1950 3950 50  0001 C CNN
	1    1950 3950
	0    1    1    0   
$EndComp
Text Notes 850  4450 0    39   ~ 0
* See Chapter 13.2 of SN65220 datasheet\n* See Table 3.5 of FT232R datasheet, series resistors are internal
$Comp
L Connector_Generic:Conn_01x02 J?
U 1 1 5FAF9339
P 10650 1200
AR Path="/5FAF9339" Ref="J?"  Part="1" 
AR Path="/5F9E7705/5FAF9339" Ref="J6"  Part="1" 
F 0 "J6" H 10730 1192 50  0000 L CNN
F 1 "XCVR_PTT" H 10500 1000 50  0000 L CNN
F 2 "" H 10650 1200 50  0001 C CNN
F 3 "~" H 10650 1200 50  0001 C CNN
	1    10650 1200
	1    0    0    -1  
$EndComp
$Comp
L Connector_Generic:Conn_01x03 J?
U 1 1 5FB0EB81
P 8200 1200
AR Path="/5FB0EB81" Ref="J?"  Part="1" 
AR Path="/5F9E7705/5FB0EB81" Ref="J5"  Part="1" 
F 0 "J5" H 8150 1400 50  0000 L CNN
F 1 "PTT choice" H 8000 1000 50  0000 L CNN
F 2 "" H 8200 1200 50  0001 C CNN
F 3 "~" H 8200 1200 50  0001 C CNN
	1    8200 1200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB135DA
P 6600 800
AR Path="/5FB135DA" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FB135DA" Ref="#PWR022"  Part="1" 
F 0 "#PWR022" H 6600 550 50  0001 C CNN
F 1 "GND" H 6600 650 50  0000 C CNN
F 2 "" H 6600 800 50  0001 C CNN
F 3 "" H 6600 800 50  0001 C CNN
	1    6600 800 
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB18AF0
P 8800 1350
AR Path="/5FB18AF0" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FB18AF0" Ref="#PWR025"  Part="1" 
F 0 "#PWR025" H 8800 1100 50  0001 C CNN
F 1 "GND" H 8800 1200 50  0000 C CNN
F 2 "" H 8800 1350 50  0001 C CNN
F 3 "" H 8800 1350 50  0001 C CNN
	1    8800 1350
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R?
U 1 1 5FB18AF8
P 8600 1200
AR Path="/5FB18AF8" Ref="R?"  Part="1" 
AR Path="/5F9E7705/5FB18AF8" Ref="R19"  Part="1" 
F 0 "R19" V 8500 1200 50  0000 C CNN
F 1 "1k" V 8700 1200 50  0000 C CNN
F 2 "" H 8600 1200 50  0001 C CNN
F 3 "~" H 8600 1200 50  0001 C CNN
	1    8600 1200
	0    1    1    0   
$EndComp
$Comp
L Device:C_Small C?
U 1 1 5FB75313
P 10150 3300
AR Path="/5FB75313" Ref="C?"  Part="1" 
AR Path="/5F9E7705/5FB75313" Ref="C14"  Part="1" 
F 0 "C14" V 10250 3300 50  0000 C CNN
F 1 "100n" V 10050 3300 50  0000 C CNN
F 2 "" H 10150 3300 50  0001 C CNN
F 3 "~" H 10150 3300 50  0001 C CNN
	1    10150 3300
	0    -1   -1   0   
$EndComp
Text GLabel 10450 3700 2    50   Input ~ 0
XCVR_GND
$Comp
L Device:C_Small C?
U 1 1 5FB75339
P 10150 3700
AR Path="/5FB75339" Ref="C?"  Part="1" 
AR Path="/5F9E7705/5FB75339" Ref="C15"  Part="1" 
F 0 "C15" V 10250 3700 50  0000 C CNN
F 1 "100n" V 10050 3700 50  0000 C CNN
F 2 "" H 10150 3700 50  0001 C CNN
F 3 "~" H 10150 3700 50  0001 C CNN
	1    10150 3700
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D?
U 1 1 5FAEABDF
P 6000 3650
AR Path="/5FAEABDF" Ref="D?"  Part="1" 
AR Path="/5F9E7705/5FAEABDF" Ref="D2"  Part="1" 
F 0 "D2" H 6000 3750 50  0000 C CNN
F 1 "RED" H 6000 3500 50  0000 C CNN
F 2 "" H 6000 3650 50  0001 C CNN
F 3 "~" H 6000 3650 50  0001 C CNN
	1    6000 3650
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R?
U 1 1 5FAEABD9
P 6400 3650
AR Path="/5FAEABD9" Ref="R?"  Part="1" 
AR Path="/5F9E7705/5FAEABD9" Ref="R17"  Part="1" 
F 0 "R17" V 6300 3650 50  0000 C CNN
F 1 "270" V 6500 3650 50  0000 C CNN
F 2 "" H 6400 3650 50  0001 C CNN
F 3 "~" H 6400 3650 50  0001 C CNN
	1    6400 3650
	0    1    1    0   
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5FAEABD3
P 6650 3650
AR Path="/5FAEABD3" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FAEABD3" Ref="#PWR023"  Part="1" 
F 0 "#PWR023" H 6650 3500 50  0001 C CNN
F 1 "VCC" H 6667 3823 50  0000 C CNN
F 2 "" H 6650 3650 50  0001 C CNN
F 3 "" H 6650 3650 50  0001 C CNN
	1    6650 3650
	1    0    0    -1  
$EndComp
Text GLabel 5700 3650 0    50   Input ~ 0
TXLED
$Comp
L Device:LED D?
U 1 1 5FAEABCA
P 6000 4050
AR Path="/5FAEABCA" Ref="D?"  Part="1" 
AR Path="/5F9E7705/5FAEABCA" Ref="D3"  Part="1" 
F 0 "D3" H 6000 4150 50  0000 C CNN
F 1 "GREEN" H 6000 3900 50  0000 C CNN
F 2 "" H 6000 4050 50  0001 C CNN
F 3 "~" H 6000 4050 50  0001 C CNN
	1    6000 4050
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R?
U 1 1 5FAEABC4
P 6400 4050
AR Path="/5FAEABC4" Ref="R?"  Part="1" 
AR Path="/5F9E7705/5FAEABC4" Ref="R18"  Part="1" 
F 0 "R18" V 6300 4050 50  0000 C CNN
F 1 "270" V 6500 4050 50  0000 C CNN
F 2 "" H 6400 4050 50  0001 C CNN
F 3 "~" H 6400 4050 50  0001 C CNN
	1    6400 4050
	0    1    1    0   
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5FAEABBE
P 6650 4050
AR Path="/5FAEABBE" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FAEABBE" Ref="#PWR024"  Part="1" 
F 0 "#PWR024" H 6650 3900 50  0001 C CNN
F 1 "VCC" H 6667 4223 50  0000 C CNN
F 2 "" H 6650 4050 50  0001 C CNN
F 3 "" H 6650 4050 50  0001 C CNN
	1    6650 4050
	1    0    0    -1  
$EndComp
Text GLabel 5700 4050 0    50   Input ~ 0
RXLED
Text Notes 5450 4350 0    39   ~ 0
* See Chapter 7.1 of FT232R datasheet
$Comp
L Connector:USB_C_Receptacle_USB2.0 J2
U 1 1 5FD235E4
P 1100 1800
F 0 "J2" H 1207 2667 50  0000 C CNN
F 1 "USB_C" H 1207 2576 50  0000 C CNN
F 2 "" H 1250 1800 50  0001 C CNN
F 3 "https://www.usb.org/sites/default/files/documents/usb_type-c.zip" H 1250 1800 50  0001 C CNN
	1    1100 1800
	1    0    0    -1  
$EndComp
NoConn ~ 800  2700
$Comp
L Device:C_Small C?
U 1 1 5FD78EA5
P 2000 1350
AR Path="/5FD78EA5" Ref="C?"  Part="1" 
AR Path="/5F9D7A3C/5FD78EA5" Ref="C?"  Part="1" 
AR Path="/5F9E7705/5FD78EA5" Ref="C6"  Part="1" 
F 0 "C6" H 1900 1400 50  0000 C CNN
F 1 "10n" H 2100 1300 50  0000 C CNN
F 2 "" H 2000 1350 50  0001 C CNN
F 3 "~" H 2000 1350 50  0001 C CNN
	1    2000 1350
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FD78EB1
P 2000 1500
AR Path="/5FD78EB1" Ref="#PWR?"  Part="1" 
AR Path="/5F9D7A3C/5FD78EB1" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FD78EB1" Ref="#PWR07"  Part="1" 
F 0 "#PWR07" H 2000 1250 50  0001 C CNN
F 1 "GND" H 2000 1350 50  0000 C CNN
F 2 "" H 2000 1500 50  0001 C CNN
F 3 "" H 2000 1500 50  0001 C CNN
	1    2000 1500
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5FD78EC1
P 2550 1100
AR Path="/5FD78EC1" Ref="#PWR?"  Part="1" 
AR Path="/5F9D7A3C/5FD78EC1" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FD78EC1" Ref="#PWR010"  Part="1" 
F 0 "#PWR010" H 2550 950 50  0001 C CNN
F 1 "VCC" H 2567 1273 50  0000 C CNN
F 2 "" H 2550 1100 50  0001 C CNN
F 3 "" H 2550 1100 50  0001 C CNN
	1    2550 1100
	1    0    0    -1  
$EndComp
$Comp
L Device:Ferrite_Bead_Small FB?
U 1 1 5FD78EC7
P 2250 1200
AR Path="/5FD78EC7" Ref="FB?"  Part="1" 
AR Path="/5F9D7A3C/5FD78EC7" Ref="FB?"  Part="1" 
AR Path="/5F9E7705/5FD78EC7" Ref="FB1"  Part="1" 
F 0 "FB1" V 2100 1200 50  0000 C CNN
F 1 "Fe" V 2350 1200 50  0000 C CNN
F 2 "" V 2180 1200 50  0001 C CNN
F 3 "~" H 2250 1200 50  0001 C CNN
	1    2250 1200
	0    1    1    0   
$EndComp
NoConn ~ 1700 1400
NoConn ~ 1700 1500
NoConn ~ 1700 2300
NoConn ~ 1700 2400
Text Notes 550  750  0    157  ~ 31
USB + ESD
$Comp
L power:GND #PWR?
U 1 1 5FADB619
P 5600 2550
AR Path="/5FADB619" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FADB619" Ref="#PWR019"  Part="1" 
F 0 "#PWR019" H 5600 2300 50  0001 C CNN
F 1 "GND" H 5605 2377 50  0000 C CNN
F 2 "" H 5600 2550 50  0001 C CNN
F 3 "" H 5600 2550 50  0001 C CNN
	1    5600 2550
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FADB61F
P 5450 2650
AR Path="/5FADB61F" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FADB61F" Ref="#PWR018"  Part="1" 
F 0 "#PWR018" H 5450 2400 50  0001 C CNN
F 1 "GND" H 5455 2477 50  0000 C CNN
F 2 "" H 5450 2650 50  0001 C CNN
F 3 "" H 5450 2650 50  0001 C CNN
	1    5450 2650
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FADB635
P 3350 2000
AR Path="/5FADB635" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FADB635" Ref="#PWR013"  Part="1" 
F 0 "#PWR013" H 3350 1750 50  0001 C CNN
F 1 "GND" H 3350 1850 50  0000 C CNN
F 2 "" H 3350 2000 50  0001 C CNN
F 3 "" H 3350 2000 50  0001 C CNN
	1    3350 2000
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C?
U 1 1 5FADB63B
P 3550 1950
AR Path="/5FADB63B" Ref="C?"  Part="1" 
AR Path="/5F9E7705/5FADB63B" Ref="C9"  Part="1" 
F 0 "C9" V 3450 1950 50  0000 C CNN
F 1 "100n" V 3650 1950 50  0000 C CNN
F 2 "" H 3550 1950 50  0001 C CNN
F 3 "~" H 3550 1950 50  0001 C CNN
	1    3550 1950
	0    1    1    0   
$EndComp
NoConn ~ 5350 3150
NoConn ~ 5350 3350
NoConn ~ 3750 3050
NoConn ~ 3750 2850
$Comp
L power:GND #PWR?
U 1 1 5FADB657
P 3700 3400
AR Path="/5FADB657" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FADB657" Ref="#PWR014"  Part="1" 
F 0 "#PWR014" H 3700 3150 50  0001 C CNN
F 1 "GND" H 3705 3227 50  0000 C CNN
F 2 "" H 3700 3400 50  0001 C CNN
F 3 "" H 3700 3400 50  0001 C CNN
	1    3700 3400
	1    0    0    -1  
$EndComp
NoConn ~ 3750 2650
$Comp
L power:GND #PWR?
U 1 1 5FADB666
P 4550 3750
AR Path="/5FADB666" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FADB666" Ref="#PWR015"  Part="1" 
F 0 "#PWR015" H 4550 3500 50  0001 C CNN
F 1 "GND" H 4555 3577 50  0000 C CNN
F 2 "" H 4550 3750 50  0001 C CNN
F 3 "" H 4550 3750 50  0001 C CNN
	1    4550 3750
	1    0    0    -1  
$EndComp
$Comp
L Interface_USB:FT232RL U?
U 1 1 5FADB66C
P 4550 2650
AR Path="/5FADB66C" Ref="U?"  Part="1" 
AR Path="/5F9E7705/5FADB66C" Ref="U5"  Part="1" 
F 0 "U5" H 4550 2650 50  0000 C CNN
F 1 "FT232RL" H 4550 2550 50  0000 C CNN
F 2 "Package_SO:SSOP-28_5.3x10.2mm_P0.65mm" H 5650 1750 50  0001 C CNN
F 3 "https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT232R.pdf" H 4550 2650 50  0001 C CNN
	1    4550 2650
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5FADB672
P 4650 1050
AR Path="/5FADB672" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FADB672" Ref="#PWR016"  Part="1" 
F 0 "#PWR016" H 4650 900 50  0001 C CNN
F 1 "VCC" H 4667 1223 50  0000 C CNN
F 2 "" H 4650 1050 50  0001 C CNN
F 3 "" H 4650 1050 50  0001 C CNN
	1    4650 1050
	1    0    0    -1  
$EndComp
Text GLabel 3750 2350 0    50   Input ~ 0
USB_D-
Text GLabel 3750 2250 0    50   Input ~ 0
USB_D+
Text GLabel 5350 2950 2    50   Input ~ 0
TXLED
Text GLabel 5350 3050 2    50   Input ~ 0
RXLED
$Comp
L Device:R_Small R?
U 1 1 5FADB628
P 5650 3250
AR Path="/5FADB628" Ref="R?"  Part="1" 
AR Path="/5F9E7705/5FADB628" Ref="R16"  Part="1" 
F 0 "R16" V 5550 3250 50  0000 C CNN
F 1 "10k" V 5750 3250 50  0000 C CNN
F 2 "" H 5650 3250 50  0001 C CNN
F 3 "~" H 5650 3250 50  0001 C CNN
	1    5650 3250
	0    1    1    0   
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5FADB60F
P 5850 3200
AR Path="/5FADB60F" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FADB60F" Ref="#PWR020"  Part="1" 
F 0 "#PWR020" H 5850 3050 50  0001 C CNN
F 1 "VCC" H 5867 3373 50  0000 C CNN
F 2 "" H 5850 3200 50  0001 C CNN
F 3 "" H 5850 3200 50  0001 C CNN
	1    5850 3200
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C?
U 1 1 5FB94B0A
P 4900 1500
AR Path="/5FB94B0A" Ref="C?"  Part="1" 
AR Path="/5F9D7A3C/5FB94B0A" Ref="C?"  Part="1" 
AR Path="/5F9E7705/5FB94B0A" Ref="C11"  Part="1" 
F 0 "C11" V 5000 1500 50  0000 C CNN
F 1 "100n" V 4800 1500 50  0000 C CNN
F 2 "" H 4900 1500 50  0001 C CNN
F 3 "~" H 4900 1500 50  0001 C CNN
	1    4900 1500
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB94B04
P 5200 1350
AR Path="/5FB94B04" Ref="#PWR?"  Part="1" 
AR Path="/5F9D7A3C/5FB94B04" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FB94B04" Ref="#PWR017"  Part="1" 
F 0 "#PWR017" H 5200 1100 50  0001 C CNN
F 1 "GND" H 5200 1200 50  0000 C CNN
F 2 "" H 5200 1350 50  0001 C CNN
F 3 "" H 5200 1350 50  0001 C CNN
	1    5200 1350
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C?
U 1 1 5FB94AFE
P 4900 1200
AR Path="/5FB94AFE" Ref="C?"  Part="1" 
AR Path="/5F9D7A3C/5FB94AFE" Ref="C?"  Part="1" 
AR Path="/5F9E7705/5FB94AFE" Ref="C10"  Part="1" 
F 0 "C10" V 4800 1200 50  0000 C CNN
F 1 "4.7u" V 5000 1200 50  0000 C CNN
F 2 "" H 4900 1200 50  0001 C CNN
F 3 "~" H 4900 1200 50  0001 C CNN
	1    4900 1200
	0    1    1    0   
$EndComp
Text GLabel 5850 2600 2    50   Input ~ 0
UART_BUS
Entry Wire Line
	5650 1950 5750 2050
Entry Wire Line
	5650 2050 5750 2150
Entry Wire Line
	5650 2150 5750 2250
Entry Wire Line
	5650 2250 5750 2350
Entry Wire Line
	5650 2350 5750 2450
Entry Wire Line
	5650 2450 5750 2550
Text Label 5350 1950 0    50   ~ 0
TXD
Text Label 5350 2050 0    50   ~ 0
RXD
Text Label 5350 2150 0    50   ~ 0
RTS
Text Label 5350 2250 0    50   ~ 0
CTS
Text Label 5350 2350 0    50   ~ 0
DTR
Text Label 5350 2450 0    50   ~ 0
DSR
Text Notes 3150 750  0    157  ~ 31
FTDI
Entry Wire Line
	5750 1000 5850 900 
Wire Wire Line
	1300 3950 1450 3950
Wire Wire Line
	1650 3950 1750 3950
Wire Wire Line
	2050 3950 2200 3950
Wire Wire Line
	1750 4050 1750 3950
Connection ~ 1750 3950
Wire Wire Line
	1750 3950 1850 3950
Wire Wire Line
	8950 1300 8800 1300
Wire Wire Line
	8800 1300 8800 1350
Wire Wire Line
	8700 1200 8950 1200
Wire Wire Line
	10350 3300 10250 3300
Wire Wire Line
	10350 3700 10250 3700
Wire Wire Line
	6500 3650 6650 3650
Wire Wire Line
	6150 3650 6300 3650
Wire Wire Line
	5700 3650 5850 3650
Wire Wire Line
	6500 4050 6650 4050
Wire Wire Line
	6150 4050 6300 4050
Wire Wire Line
	5700 4050 5850 4050
Wire Wire Line
	1700 1900 1800 1900
Wire Wire Line
	1800 1900 1800 2000
Wire Wire Line
	1800 2000 1700 2000
Connection ~ 1800 1900
Wire Wire Line
	1800 1900 1900 1900
Wire Wire Line
	1700 1800 1800 1800
Wire Wire Line
	1700 1700 1800 1700
Wire Wire Line
	1800 1700 1800 1800
Connection ~ 1800 1800
Wire Wire Line
	1800 1800 1900 1800
Wire Wire Line
	1700 1200 2000 1200
Wire Wire Line
	2000 1250 2000 1200
Wire Notes Line
	3000 500  3000 4500
Wire Wire Line
	5350 2650 5450 2650
Wire Wire Line
	5350 2550 5600 2550
Wire Wire Line
	3350 1950 3350 2000
Wire Wire Line
	3450 1950 3350 1950
Wire Wire Line
	3750 1950 3650 1950
Wire Wire Line
	4350 3700 4550 3700
Wire Wire Line
	4350 3650 4350 3700
Wire Wire Line
	3700 3350 3700 3400
Wire Wire Line
	3750 3350 3700 3350
Wire Wire Line
	4550 3700 4550 3750
Wire Wire Line
	4650 3700 4750 3700
Wire Wire Line
	4650 3650 4650 3700
Wire Wire Line
	4750 3700 4750 3650
Connection ~ 4650 3700
Connection ~ 4550 3700
Wire Wire Line
	4550 3700 4650 3700
Wire Wire Line
	4550 3650 4550 3700
Wire Wire Line
	5850 3250 5850 3200
Wire Wire Line
	5750 3250 5850 3250
Wire Wire Line
	5350 3250 5550 3250
Wire Wire Line
	4650 1650 4650 1500
Wire Wire Line
	4650 1200 4800 1200
Connection ~ 4650 1200
Wire Wire Line
	4650 1200 4650 1050
Wire Wire Line
	4800 1500 4650 1500
Connection ~ 4650 1500
Wire Wire Line
	4650 1500 4650 1200
Wire Wire Line
	5000 1200 5050 1200
Wire Wire Line
	5050 1200 5050 1350
Wire Wire Line
	5050 1500 5000 1500
Wire Wire Line
	5050 1350 5200 1350
Connection ~ 5050 1350
Wire Wire Line
	5050 1350 5050 1500
Wire Wire Line
	4650 1500 4450 1500
Wire Wire Line
	4450 1500 4450 1650
Wire Wire Line
	5350 1950 5650 1950
Wire Wire Line
	5350 2050 5650 2050
Wire Wire Line
	5350 2150 5650 2150
Wire Wire Line
	5350 2250 5650 2250
Wire Wire Line
	5350 2350 5650 2350
Wire Wire Line
	5350 2450 5650 2450
Wire Bus Line
	5750 2600 5850 2600
Wire Notes Line
	500  4500 7000 4500
Entry Wire Line
	5750 1200 5850 1100
Entry Wire Line
	5750 1300 5850 1200
Entry Wire Line
	5750 1400 5850 1300
$Comp
L Connector_Generic:Conn_01x06 J?
U 1 1 5FB135D4
P 6200 1000
AR Path="/5FB135D4" Ref="J?"  Part="1" 
AR Path="/5F9E7705/5FB135D4" Ref="J4"  Part="1" 
F 0 "J4" H 6300 750 50  0000 L CNN
F 1 "FTDI header" H 6000 600 50  0000 L CNN
F 2 "" H 6200 1000 50  0001 C CNN
F 3 "~" H 6200 1000 50  0001 C CNN
	1    6200 1000
	1    0    0    -1  
$EndComp
Wire Wire Line
	5850 900  6000 900 
Wire Wire Line
	5850 1100 6000 1100
Wire Wire Line
	5850 1200 6000 1200
Wire Wire Line
	5850 1300 6000 1300
Text Label 5850 900  0    50   ~ 0
CTS
Text Label 5850 1100 0    50   ~ 0
TXD
Text Label 5850 1200 0    50   ~ 0
RXD
Text Label 5850 1300 0    50   ~ 0
RTS
$Comp
L power:VCC #PWR?
U 1 1 5FB135E2
P 6400 1000
AR Path="/5FB135E2" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FB135E2" Ref="#PWR021"  Part="1" 
F 0 "#PWR021" H 6400 850 50  0001 C CNN
F 1 "VCC" H 6400 1150 50  0000 C CNN
F 2 "" H 6400 1000 50  0001 C CNN
F 3 "" H 6400 1000 50  0001 C CNN
	1    6400 1000
	1    0    0    -1  
$EndComp
Wire Wire Line
	6000 1000 6400 1000
Wire Wire Line
	6000 800  6600 800 
Text GLabel 7600 1450 0    50   Input ~ 0
UART_BUS
Wire Bus Line
	7600 1450 7700 1450
Entry Wire Line
	7700 1200 7800 1100
Entry Wire Line
	7700 1400 7800 1300
Wire Wire Line
	7800 1100 8000 1100
Wire Wire Line
	7800 1300 8000 1300
Text Label 7800 1100 0    50   ~ 0
RTS
Text Label 7800 1300 0    50   ~ 0
DTR
Wire Wire Line
	8000 1200 8500 1200
Wire Wire Line
	9850 1200 9950 1200
Wire Wire Line
	9850 1400 9950 1400
Wire Wire Line
	9950 1400 9950 1200
Connection ~ 9950 1200
Wire Wire Line
	9950 1200 10450 1200
Wire Wire Line
	9850 1300 10450 1300
Text Label 10000 1200 0    50   ~ 0
XCVR_PTT+
Text Label 10000 1300 0    50   ~ 0
XCVR_PTT-
Text Notes 7150 750  0    157  ~ 31
PTT + isolation
Wire Notes Line
	7000 2000 11200 2000
Text Notes 8050 1500 0    39   Italic 0
Use jumper
Text Notes 10450 1500 0    39   Italic 0
Screw terminal
Wire Wire Line
	2000 1200 2150 1200
Connection ~ 2000 1200
Wire Wire Line
	2350 1200 2550 1200
$Comp
L Device:R_Small R?
U 1 1 5FFE7E60
P 2550 1350
AR Path="/5FFE7E60" Ref="R?"  Part="1" 
AR Path="/5F9D7A3C/5FFE7E60" Ref="R?"  Part="1" 
AR Path="/5F9E7705/5FFE7E60" Ref="R9"  Part="1" 
F 0 "R9" H 2450 1350 50  0000 C CNN
F 1 "270" H 2650 1350 50  0000 C CNN
F 2 "" H 2550 1350 50  0001 C CNN
F 3 "~" H 2550 1350 50  0001 C CNN
	1    2550 1350
	1    0    0    -1  
$EndComp
$Comp
L Device:LED D?
U 1 1 5FFE90D2
P 2550 1650
AR Path="/5FFE90D2" Ref="D?"  Part="1" 
AR Path="/5F9D7A3C/5FFE90D2" Ref="D?"  Part="1" 
AR Path="/5F9E7705/5FFE90D2" Ref="D1"  Part="1" 
F 0 "D1" V 2550 1750 50  0000 C CNN
F 1 "GREEN" V 2550 1450 50  0000 C CNN
F 2 "" H 2550 1650 50  0001 C CNN
F 3 "~" H 2550 1650 50  0001 C CNN
	1    2550 1650
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FFEA299
P 2550 1850
AR Path="/5FFEA299" Ref="#PWR?"  Part="1" 
AR Path="/5F9D7A3C/5FFEA299" Ref="#PWR?"  Part="1" 
AR Path="/5F9E7705/5FFEA299" Ref="#PWR011"  Part="1" 
F 0 "#PWR011" H 2550 1600 50  0001 C CNN
F 1 "GND" H 2555 1677 50  0000 C CNN
F 2 "" H 2550 1850 50  0001 C CNN
F 3 "" H 2550 1850 50  0001 C CNN
	1    2550 1850
	1    0    0    -1  
$EndComp
Wire Wire Line
	2000 1450 2000 1500
Wire Wire Line
	2550 1450 2550 1500
Wire Wire Line
	2550 1800 2550 1850
Wire Wire Line
	2550 1250 2550 1200
Wire Wire Line
	2550 1200 2550 1100
Connection ~ 2550 1200
Text Notes 2700 1750 0    39   Italic 0
Power
$Comp
L custom:MAX3387ECUG+ U6
U 1 1 60048EC4
P 8400 3300
F 0 "U6" H 9150 2800 50  0000 C CNN
F 1 "MAX3387ECUG+" H 9150 2700 50  0000 C CNN
F 2 "SOP65P640X110-24N" H 11800 3300 50  0001 L CNN
F 3 "" H 10200 3900 50  0001 L CNN
F 4 "MAX3387ECUG+, Multichannel Line Transceiver, EIA/TIA-232, RS-232, V.24, V.28 3 3 3 250kbit/s, 3  5.5 V, 24-Pin" H 11750 2950 50  0001 L CNN "Description"
F 5 "1.1" H 10200 3700 50  0001 L CNN "Height"
F 6 "700-MAX3387ECUG" H 11800 3400 50  0001 L CNN "Mouser Part Number"
F 7 "https://www.mouser.co.uk/ProductDetail/Maxim-Integrated/MAX3387ECUG%2b?qs=1THa7WoU59HIOZvt2U3ItQ%3D%3D" H 11750 2650 50  0001 L CNN "Mouser Price/Stock"
F 8 "Maxim Integrated" H 11800 3200 50  0001 L CNN "Manufacturer_Name"
F 9 "MAX3387ECUG+" H 11800 3100 50  0001 L CNN "Manufacturer_Part_Number"
	1    8400 3300
	1    0    0    -1  
$EndComp
Text Notes 7150 2300 0    157  ~ 31
RS232 line driver
$Comp
L Device:C_Small C?
U 1 1 6005CF1E
P 8100 3300
AR Path="/6005CF1E" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6005CF1E" Ref="C12"  Part="1" 
F 0 "C12" V 8050 3200 50  0000 C CNN
F 1 "100n" V 8050 3450 50  0000 C CNN
F 2 "" H 8100 3300 50  0001 C CNN
F 3 "~" H 8100 3300 50  0001 C CNN
	1    8100 3300
	0    1    1    0   
$EndComp
Wire Wire Line
	8400 3300 8200 3300
Wire Wire Line
	8000 3300 7950 3300
Wire Wire Line
	7950 3300 7950 3400
Wire Wire Line
	7950 3400 8400 3400
$Comp
L Device:C_Small C?
U 1 1 6006969E
P 8100 3600
AR Path="/6006969E" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6006969E" Ref="C13"  Part="1" 
F 0 "C13" V 8050 3500 50  0000 C CNN
F 1 "100n" V 8050 3750 50  0000 C CNN
F 2 "" H 8100 3600 50  0001 C CNN
F 3 "~" H 8100 3600 50  0001 C CNN
	1    8100 3600
	0    1    1    0   
$EndComp
Wire Wire Line
	8200 3600 8400 3600
Wire Wire Line
	8000 3600 7950 3600
Wire Wire Line
	7950 3600 7950 3700
Wire Wire Line
	7950 3700 8400 3700
Text GLabel 9000 5750 0    50   Input ~ 0
XCVR_GND
Wire Wire Line
	9900 3700 10050 3700
Wire Wire Line
	10050 3300 9900 3300
Wire Wire Line
	10350 3300 10350 3700
Wire Wire Line
	10350 3700 10450 3700
Connection ~ 10350 3700
$Comp
L Device:R_Small R?
U 1 1 600B0297
P 9050 5400
AR Path="/600B0297" Ref="R?"  Part="1" 
AR Path="/5F9E7705/600B0297" Ref="R20"  Part="1" 
F 0 "R20" H 9150 5400 50  0000 C CNN
F 1 "10k" H 9150 5500 50  0000 C CNN
F 2 "" H 9050 5400 50  0001 C CNN
F 3 "~" H 9050 5400 50  0001 C CNN
	1    9050 5400
	-1   0    0    1   
$EndComp
Wire Wire Line
	9050 5200 9050 5300
Wire Wire Line
	9050 5500 9050 5600
Wire Wire Line
	9050 5600 9150 5600
Wire Wire Line
	9150 5600 9150 5200
Wire Wire Line
	9250 5200 9250 5600
Wire Wire Line
	9250 5600 9150 5600
Connection ~ 9150 5600
Wire Wire Line
	9150 5600 9150 5750
Wire Wire Line
	9150 5750 9000 5750
Text GLabel 7800 4900 0    50   Input ~ 0
XCVR_UART_BUS
Wire Bus Line
	7800 4900 7900 4900
Entry Wire Line
	7900 4150 8000 4050
Entry Wire Line
	7900 4250 8000 4150
Entry Wire Line
	7900 4350 8000 4250
Entry Wire Line
	7900 4600 8000 4500
Entry Wire Line
	7900 4700 8000 4600
Entry Wire Line
	7900 4800 8000 4700
Wire Wire Line
	8000 4050 8400 4050
Wire Wire Line
	8000 4150 8400 4150
Wire Wire Line
	8000 4250 8400 4250
Wire Wire Line
	8000 4500 8400 4500
Wire Wire Line
	8000 4600 8400 4600
Wire Wire Line
	8000 4700 8400 4700
Text Label 8000 4050 0    50   ~ 0
XCVR_TXD
Text Label 8000 4150 0    50   ~ 0
XCVR_RTS
Text Label 8000 4250 0    50   ~ 0
XCVR_DTR
Text Label 8000 4500 0    50   ~ 0
XCVR_RXD
$Comp
L Connector_Generic:Conn_01x08 J?
U 1 1 5FAF934F
P 11000 5550
AR Path="/5FAF934F" Ref="J?"  Part="1" 
AR Path="/5F9E7705/5FAF934F" Ref="J7"  Part="1" 
F 0 "J7" H 10950 6000 50  0000 L CNN
F 1 "XCVR_CAT_RS232" H 10500 5000 50  0000 L CNN
F 2 "" H 11000 5550 50  0001 C CNN
F 3 "~" H 11000 5550 50  0001 C CNN
	1    11000 5550
	1    0    0    -1  
$EndComp
Text GLabel 10800 5550 0    50   Input ~ 0
XCVR_GND
Text GLabel 10800 5250 0    50   Input ~ 0
XCVR_VCC
Entry Wire Line
	10500 4050 10600 4150
Entry Wire Line
	10500 4150 10600 4250
Entry Wire Line
	10500 4250 10600 4350
Entry Wire Line
	10500 4500 10600 4600
Entry Wire Line
	10500 4600 10600 4700
Entry Wire Line
	10500 4700 10600 4800
Text Label 8000 4600 0    50   ~ 0
XCVR_CTS
Text Label 8000 4700 0    50   ~ 0
XCVR_DSR
Text Label 9950 4050 0    50   ~ 0
RS232_TXD
Text Label 9950 4150 0    50   ~ 0
RS232_RTS
Text Label 9950 4250 0    50   ~ 0
RS232_DTR
Text Label 9950 4500 0    50   ~ 0
RS232_RXD
Text Label 9950 4600 0    50   ~ 0
RS232_CTS
Text Label 9950 4700 0    50   ~ 0
RS232_DSR
Wire Wire Line
	9900 4050 10500 4050
Wire Wire Line
	9900 4150 10500 4150
Wire Wire Line
	9900 4250 10500 4250
Wire Wire Line
	9900 4500 10500 4500
Wire Wire Line
	9900 4600 10500 4600
Wire Wire Line
	9900 4700 10500 4700
Entry Wire Line
	9850 5250 9950 5350
Entry Wire Line
	9850 5350 9950 5450
Entry Wire Line
	9850 5850 9950 5950
Entry Wire Line
	9850 5550 9950 5650
Entry Wire Line
	9850 5650 9950 5750
Entry Wire Line
	9850 5750 9950 5850
Wire Wire Line
	9950 5350 10800 5350
Text Label 9950 5350 0    50   ~ 0
RS232_TXD
Wire Wire Line
	9950 5450 10800 5450
Wire Wire Line
	9950 5650 10800 5650
Wire Wire Line
	9950 5750 10800 5750
Wire Wire Line
	9950 5850 10800 5850
Text Label 9950 5450 0    50   ~ 0
RS232_RXD
Wire Wire Line
	9950 5950 10800 5950
Text Label 9950 5650 0    50   ~ 0
RS232_RTS
Text Label 9950 5750 0    50   ~ 0
RS232_CTS
Text Label 9950 5850 0    50   ~ 0
RS232_DTR
Text Label 9950 5950 0    50   ~ 0
RS232_DSR
Wire Bus Line
	10600 5100 9850 5100
Text Notes 10650 6200 0    39   Italic 0
Screw terminal
Wire Notes Line
	7000 500  7000 6500
Text Notes 550  4800 0    157  ~ 31
UART isolation + crossover
Text GLabel 10450 2850 2    50   Input ~ 0
XCVR_5V
$Comp
L Device:C_Small C?
U 1 1 6025A677
P 10350 3100
AR Path="/6025A677" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6025A677" Ref="C16"  Part="1" 
F 0 "C16" H 10200 3100 50  0000 C CNN
F 1 "100n" H 10200 3200 50  0000 C CNN
F 2 "" H 10350 3100 50  0001 C CNN
F 3 "~" H 10350 3100 50  0001 C CNN
	1    10350 3100
	-1   0    0    1   
$EndComp
Wire Wire Line
	10350 3200 10350 3300
Connection ~ 10350 3300
Wire Wire Line
	9050 2900 9050 2850
Wire Wire Line
	9050 2850 9150 2850
Wire Wire Line
	10350 2850 10350 3000
Wire Wire Line
	9150 2900 9150 2850
Connection ~ 9150 2850
Wire Wire Line
	9150 2850 9250 2850
Wire Wire Line
	9250 2900 9250 2850
Connection ~ 9250 2850
Wire Wire Line
	9250 2850 10350 2850
Wire Wire Line
	10350 2850 10450 2850
Connection ~ 10350 2850
Text GLabel 1400 6000 0    50   Input ~ 0
UART_BUS
Text GLabel 5050 7100 2    50   Input ~ 0
XCVR_UART_BUS
Wire Bus Line
	1400 6000 1500 6000
Text GLabel 3600 5400 2    50   Input ~ 0
XCVR_5V
$Comp
L Device:C_Small C?
U 1 1 60386F7D
P 3400 5600
AR Path="/60386F7D" Ref="C?"  Part="1" 
AR Path="/5F9E7705/60386F7D" Ref="C8"  Part="1" 
F 0 "C8" V 3500 5600 50  0000 C CNN
F 1 "100n" V 3300 5600 50  0000 C CNN
F 2 "" H 3400 5600 50  0001 C CNN
F 3 "~" H 3400 5600 50  0001 C CNN
	1    3400 5600
	0    -1   -1   0   
$EndComp
Text GLabel 3600 5600 2    50   Input ~ 0
XCVR_GND
$Comp
L custom:Si8663AB-B-IS1 U4
U 1 1 60364EF5
P 2400 6100
F 0 "U4" H 3000 6450 50  0000 C CNN
F 1 "Si8663AB-B-IS1" H 3000 5700 50  0000 C CNN
F 2 "SOIC127P600X175-16N" H 4400 6200 50  0001 L CNN
F 3 "https://www.silabs.com/documents/public/data-sheets/Si86xx.pdf" H 4400 6100 50  0001 L CNN
F 4 "Isolator, Si8663AB-B-IS1 Silicon Labs Si8663AB-B-IS1 PCB SMT 6-channel Digital Isolator, 2500 Vrms, 16-Pin SOIC" H 4400 6000 50  0001 L CNN "Description"
F 5 "1.75" H 4400 5900 50  0001 L CNN "Height"
F 6 "634-SI8663AB-B-IS1" H 4400 5800 50  0001 L CNN "Mouser Part Number"
F 7 "https://www.mouser.co.uk/ProductDetail/Silicon-Labs/SI8663AB-B-IS1?qs=j6MGy4L9yX1tEaLVA9k5Dg%3D%3D" H 4400 5700 50  0001 L CNN "Mouser Price/Stock"
F 8 "Silicon Labs" H 4400 5600 50  0001 L CNN "Manufacturer_Name"
F 9 "Si8663AB-B-IS1" H 4400 5500 50  0001 L CNN "Manufacturer_Part_Number"
	1    2400 6100
	1    0    0    -1  
$EndComp
Wire Wire Line
	3500 5600 3600 5600
Wire Wire Line
	3200 5400 3600 5400
Wire Wire Line
	3200 5600 3300 5600
Connection ~ 3200 5600
Wire Wire Line
	3200 5600 3200 5650
Wire Wire Line
	3200 5400 3200 5600
Text GLabel 3250 7400 2    50   Input ~ 0
XCVR_GND
Wire Wire Line
	3200 7350 3200 7400
Wire Wire Line
	3200 7400 3250 7400
$Comp
L Device:C_Small C?
U 1 1 60404792
P 2600 5600
AR Path="/60404792" Ref="C?"  Part="1" 
AR Path="/5F9E7705/60404792" Ref="C7"  Part="1" 
F 0 "C7" V 2700 5600 50  0000 C CNN
F 1 "100n" V 2500 5600 50  0000 C CNN
F 2 "" H 2600 5600 50  0001 C CNN
F 3 "~" H 2600 5600 50  0001 C CNN
	1    2600 5600
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2800 5650 2800 5600
Wire Wire Line
	2800 5600 2700 5600
$Comp
L power:GND #PWR09
U 1 1 60417BF6
P 2400 5600
F 0 "#PWR09" H 2400 5350 50  0001 C CNN
F 1 "GND" H 2405 5427 50  0000 C CNN
F 2 "" H 2400 5600 50  0001 C CNN
F 3 "" H 2400 5600 50  0001 C CNN
	1    2400 5600
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR08
U 1 1 60417D6D
P 2400 5400
F 0 "#PWR08" H 2400 5250 50  0001 C CNN
F 1 "VCC" H 2417 5573 50  0000 C CNN
F 2 "" H 2400 5400 50  0001 C CNN
F 3 "" H 2400 5400 50  0001 C CNN
	1    2400 5400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2500 5600 2400 5600
Wire Wire Line
	2400 5400 2800 5400
Wire Wire Line
	2800 5400 2800 5600
Connection ~ 2800 5600
$Comp
L power:GND #PWR012
U 1 1 6042903B
P 2800 7350
F 0 "#PWR012" H 2800 7100 50  0001 C CNN
F 1 "GND" H 2805 7177 50  0000 C CNN
F 2 "" H 2800 7350 50  0001 C CNN
F 3 "" H 2800 7350 50  0001 C CNN
	1    2800 7350
	1    0    0    -1  
$EndComp
Entry Wire Line
	1500 6100 1600 6200
Entry Wire Line
	1500 6200 1600 6300
Entry Wire Line
	1500 6300 1600 6400
Entry Wire Line
	1500 6500 1600 6600
Entry Wire Line
	1500 6600 1600 6700
Entry Wire Line
	1500 6700 1600 6800
$Comp
L Device:R_Small R3
U 1 1 604CF3B9
P 2050 6200
F 0 "R3" V 2000 6050 50  0000 C CNN
F 1 "270" V 2000 6350 50  0000 C CNN
F 2 "" H 2050 6200 50  0001 C CNN
F 3 "~" H 2050 6200 50  0001 C CNN
	1    2050 6200
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R4
U 1 1 604DA10D
P 2050 6300
F 0 "R4" V 2000 6150 50  0000 C CNN
F 1 "270" V 2000 6450 50  0000 C CNN
F 2 "" H 2050 6300 50  0001 C CNN
F 3 "~" H 2050 6300 50  0001 C CNN
	1    2050 6300
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R5
U 1 1 604DA903
P 2050 6400
F 0 "R5" V 2000 6250 50  0000 C CNN
F 1 "270" V 2000 6550 50  0000 C CNN
F 2 "" H 2050 6400 50  0001 C CNN
F 3 "~" H 2050 6400 50  0001 C CNN
	1    2050 6400
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R6
U 1 1 604DC52A
P 2050 6600
F 0 "R6" V 2000 6450 50  0000 C CNN
F 1 "270" V 2000 6750 50  0000 C CNN
F 2 "" H 2050 6600 50  0001 C CNN
F 3 "~" H 2050 6600 50  0001 C CNN
	1    2050 6600
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R7
U 1 1 604DC530
P 2050 6700
F 0 "R7" V 2000 6550 50  0000 C CNN
F 1 "270" V 2000 6850 50  0000 C CNN
F 2 "" H 2050 6700 50  0001 C CNN
F 3 "~" H 2050 6700 50  0001 C CNN
	1    2050 6700
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R8
U 1 1 604DC536
P 2050 6800
F 0 "R8" V 2000 6650 50  0000 C CNN
F 1 "270" V 2000 6950 50  0000 C CNN
F 2 "" H 2050 6800 50  0001 C CNN
F 3 "~" H 2050 6800 50  0001 C CNN
	1    2050 6800
	0    1    1    0   
$EndComp
Wire Wire Line
	2150 6200 2400 6200
Wire Wire Line
	2150 6300 2400 6300
Wire Wire Line
	2150 6600 2400 6600
Wire Wire Line
	2150 6700 2400 6700
Wire Wire Line
	2150 6800 2400 6800
$Comp
L Device:R_Small R10
U 1 1 60517D42
P 3900 6200
F 0 "R10" V 3850 6050 50  0000 C CNN
F 1 "270" V 3850 6350 50  0000 C CNN
F 2 "" H 3900 6200 50  0001 C CNN
F 3 "~" H 3900 6200 50  0001 C CNN
	1    3900 6200
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R11
U 1 1 60517D48
P 3900 6300
F 0 "R11" V 3850 6150 50  0000 C CNN
F 1 "270" V 3850 6450 50  0000 C CNN
F 2 "" H 3900 6300 50  0001 C CNN
F 3 "~" H 3900 6300 50  0001 C CNN
	1    3900 6300
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R12
U 1 1 60517D4E
P 3900 6400
F 0 "R12" V 3850 6250 50  0000 C CNN
F 1 "270" V 3850 6550 50  0000 C CNN
F 2 "" H 3900 6400 50  0001 C CNN
F 3 "~" H 3900 6400 50  0001 C CNN
	1    3900 6400
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R13
U 1 1 60517D54
P 3900 6600
F 0 "R13" V 3850 6450 50  0000 C CNN
F 1 "270" V 3850 6750 50  0000 C CNN
F 2 "" H 3900 6600 50  0001 C CNN
F 3 "~" H 3900 6600 50  0001 C CNN
	1    3900 6600
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R14
U 1 1 60517D5A
P 3900 6700
F 0 "R14" V 3850 6550 50  0000 C CNN
F 1 "270" V 3850 6850 50  0000 C CNN
F 2 "" H 3900 6700 50  0001 C CNN
F 3 "~" H 3900 6700 50  0001 C CNN
	1    3900 6700
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R15
U 1 1 60517D60
P 3900 6800
F 0 "R15" V 3850 6650 50  0000 C CNN
F 1 "270" V 3850 6950 50  0000 C CNN
F 2 "" H 3900 6800 50  0001 C CNN
F 3 "~" H 3900 6800 50  0001 C CNN
	1    3900 6800
	0    1    1    0   
$EndComp
Wire Wire Line
	3600 6200 3800 6200
Wire Wire Line
	3600 6300 3800 6300
Wire Wire Line
	3600 6400 3800 6400
Wire Wire Line
	3600 6600 3800 6600
Wire Wire Line
	3600 6700 3800 6700
Wire Wire Line
	3600 6800 3800 6800
Wire Wire Line
	2150 6400 2400 6400
Text Label 1600 6200 0    50   ~ 0
TXD
Wire Wire Line
	1600 6200 1950 6200
Wire Wire Line
	1600 6300 1950 6300
Wire Wire Line
	1600 6400 1950 6400
Wire Wire Line
	1600 6600 1950 6600
Wire Wire Line
	1600 6700 1950 6700
Wire Wire Line
	1600 6800 1950 6800
Text Label 1600 6300 0    50   ~ 0
RTS
Text Label 1600 6400 0    50   ~ 0
DTR
Entry Wire Line
	4750 6200 4850 6300
Wire Wire Line
	4000 6200 4750 6200
Entry Wire Line
	4750 6300 4850 6400
Entry Wire Line
	4750 6400 4850 6500
Entry Wire Line
	4750 6600 4850 6700
Entry Wire Line
	4750 6700 4850 6800
Entry Wire Line
	4750 6800 4850 6900
Wire Wire Line
	4000 6300 4750 6300
Wire Wire Line
	4000 6400 4750 6400
Wire Wire Line
	4000 6600 4750 6600
Wire Wire Line
	4000 6700 4750 6700
Wire Wire Line
	4000 6800 4750 6800
Wire Bus Line
	4850 7000 4950 7000
Wire Bus Line
	4950 7000 4950 7100
Wire Bus Line
	4950 7100 5050 7100
Connection ~ 4950 7000
Wire Bus Line
	4950 7000 5050 7000
Text Label 4300 6200 0    50   ~ 0
XCVR_RXD
Text Label 4300 6300 0    50   ~ 0
XCVR_CTS
Text Label 4300 6400 0    50   ~ 0
XCVR_DSR
Text Label 4300 6600 0    50   ~ 0
XCVR_TXD
Text Label 4300 6700 0    50   ~ 0
XCVR_RTS
Text Label 4300 6800 0    50   ~ 0
XCVR_DTR
Text Label 1600 6600 0    50   ~ 0
RXD
Text Label 1600 6700 0    50   ~ 0
CTS
Text Label 1600 6800 0    50   ~ 0
DSR
Text Notes 5950 7050 0    39   Italic 0
Screw terminal
$Comp
L Connector_Generic:Conn_01x08 J?
U 1 1 5FAF9355
P 6150 6400
AR Path="/5FAF9355" Ref="J?"  Part="1" 
AR Path="/5F9E7705/5FAF9355" Ref="J3"  Part="1" 
F 0 "J3" H 6100 6850 50  0000 L CNN
F 1 "XCVR_CAT_TTL" H 5900 5850 50  0000 L CNN
F 2 "" H 6150 6400 50  0001 C CNN
F 3 "~" H 6150 6400 50  0001 C CNN
	1    6150 6400
	1    0    0    -1  
$EndComp
Text GLabel 5950 6100 0    50   Input ~ 0
XCVR_VCC
Text GLabel 5950 6400 0    50   Input ~ 0
XCVR_GND
Text Label 5150 6300 0    50   ~ 0
XCVR_RXD
Text Label 5150 6200 0    50   ~ 0
XCVR_TXD
Text Label 5150 6500 0    50   ~ 0
XCVR_RTS
Text Label 5150 6600 0    50   ~ 0
XCVR_CTS
Text Label 5150 6700 0    50   ~ 0
XCVR_DTR
Text Label 5150 6800 0    50   ~ 0
XCVR_DSR
Entry Wire Line
	5050 6300 5150 6200
Entry Wire Line
	5050 6400 5150 6300
Entry Wire Line
	5050 6600 5150 6500
Entry Wire Line
	5050 6700 5150 6600
Entry Wire Line
	5050 6800 5150 6700
Entry Wire Line
	5050 6900 5150 6800
Wire Wire Line
	5150 6200 5950 6200
Wire Wire Line
	5150 6300 5950 6300
Wire Wire Line
	5150 6500 5950 6500
Wire Wire Line
	5150 6600 5950 6600
Wire Wire Line
	5150 6700 5950 6700
Wire Wire Line
	5150 6800 5950 6800
Wire Notes Line
	3000 5000 3000 7500
Text Notes 3000 5350 1    50   ~ 0
Isolation
Wire Notes Line
	9400 750  9400 1900
Text Notes 9400 1900 1    50   ~ 0
Isolation
$Comp
L custom:VOR1121B6T U7
U 1 1 5F9F5535
P 8950 1200
F 0 "U7" H 9400 1465 50  0000 C CNN
F 1 "VOR1121B6T" H 9400 1374 50  0000 C CNN
F 2 "SOT254P980X380-6N" H 10300 1300 50  0001 L CNN
F 3 "https://componentsearchengine.com/Datasheets/1/VOR1121B6T.pdf" H 10300 1200 50  0001 L CNN
F 4 "Solid State Relays - PCB Mount Hi-Reliability SSR 5300 Vrms 370mA S Ch" H 10300 1100 50  0001 L CNN "Description"
F 5 "3.8" H 10300 1000 50  0001 L CNN "Height"
F 6 "78-VOR1121B6T" H 10300 900 50  0001 L CNN "Mouser Part Number"
F 7 "https://www.mouser.co.uk/ProductDetail/Vishay-Semiconductors/VOR1121B6T?qs=Vcr9%2FL0R50ifRPsBWuXdog%3D%3D" H 10300 800 50  0001 L CNN "Mouser Price/Stock"
F 8 "Vishay" H 10300 700 50  0001 L CNN "Manufacturer_Name"
F 9 "VOR1121B6T" H 10300 600 50  0001 L CNN "Manufacturer_Part_Number"
	1    8950 1200
	1    0    0    -1  
$EndComp
Wire Bus Line
	7700 1200 7700 1450
Wire Bus Line
	7900 4150 7900 4900
Wire Bus Line
	10600 4150 10600 5100
Wire Bus Line
	9850 5100 9850 5850
Wire Bus Line
	1500 6000 1500 6700
Wire Bus Line
	4850 6300 4850 7000
Wire Bus Line
	5050 6300 5050 7000
Wire Bus Line
	5750 1000 5750 2600
$EndSCHEMATC