EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:dcdc
LIBS:74hct125
LIBS:sss7modem-cache
EELAYER 27 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "Seidenstrasse Signaling System 7 Modem"
Date "21 may 2015"
Rev "0.2"
Comp "Telebørken"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L R R3
U 1 1 5557C097
P 7300 5900
F 0 "R3" V 7380 5900 40  0000 C CNN
F 1 "120" V 7307 5901 40  0000 C CNN
F 2 "~" V 7230 5900 30  0000 C CNN
F 3 "~" H 7300 5900 30  0000 C CNN
	1    7300 5900
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 5557C0BD
P 5200 4100
F 0 "R2" V 5280 4100 40  0000 C CNN
F 1 "1k" V 5207 4101 40  0000 C CNN
F 2 "~" V 5130 4100 30  0000 C CNN
F 3 "~" H 5200 4100 30  0000 C CNN
	1    5200 4100
	1    0    0    -1  
$EndComp
$Comp
L R R1
U 1 1 5557C0CC
P 4800 4100
F 0 "R1" V 4880 4100 40  0000 C CNN
F 1 "1k" V 4807 4101 40  0000 C CNN
F 2 "~" V 4730 4100 30  0000 C CNN
F 3 "~" H 4800 4100 30  0000 C CNN
	1    4800 4100
	1    0    0    -1  
$EndComp
$Comp
L LED D1
U 1 1 5557C0EA
P 4800 4650
F 0 "D1" H 4800 4750 50  0000 C CNN
F 1 "LED" H 4800 4550 50  0000 C CNN
F 2 "~" H 4800 4650 60  0000 C CNN
F 3 "~" H 4800 4650 60  0000 C CNN
	1    4800 4650
	0    1    1    0   
$EndComp
$Comp
L LED D2
U 1 1 5557C0F9
P 5200 4650
F 0 "D2" H 5200 4750 50  0000 C CNN
F 1 "LED" H 5200 4550 50  0000 C CNN
F 2 "~" H 5200 4650 60  0000 C CNN
F 3 "~" H 5200 4650 60  0000 C CNN
	1    5200 4650
	0    1    1    0   
$EndComp
$Comp
L CONN_4 P1
U 1 1 5557C144
P 2250 3500
F 0 "P1" V 2200 3500 50  0000 C CNN
F 1 "CONN_4" V 2300 3500 50  0000 C CNN
F 2 "~" H 2250 3500 60  0000 C CNN
F 3 "~" H 2250 3500 60  0000 C CNN
	1    2250 3500
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR01
U 1 1 5557C1DC
P 2750 3900
F 0 "#PWR01" H 2750 3900 30  0001 C CNN
F 1 "GND" H 2750 3830 30  0001 C CNN
F 2 "" H 2750 3900 60  0000 C CNN
F 3 "" H 2750 3900 60  0000 C CNN
	1    2750 3900
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR02
U 1 1 5557C20B
P 2750 3150
F 0 "#PWR02" H 2750 3240 20  0001 C CNN
F 1 "+5V" H 2750 3240 30  0000 C CNN
F 2 "" H 2750 3150 60  0000 C CNN
F 3 "" H 2750 3150 60  0000 C CNN
	1    2750 3150
	1    0    0    -1  
$EndComp
$Comp
L CONN_3 K1
U 1 1 5557C2A1
P 10600 5350
F 0 "K1" V 10550 5350 50  0000 C CNN
F 1 "CONN_3" V 10650 5350 40  0000 C CNN
F 2 "~" H 10600 5350 60  0000 C CNN
F 3 "~" H 10600 5350 60  0000 C CNN
	1    10600 5350
	1    0    0    1   
$EndComp
$Comp
L R R4
U 1 1 5557C303
P 9650 4800
F 0 "R4" V 9730 4800 40  0000 C CNN
F 1 "60" V 9657 4801 40  0000 C CNN
F 2 "~" V 9580 4800 30  0000 C CNN
F 3 "~" H 9650 4800 30  0000 C CNN
	1    9650 4800
	1    0    0    -1  
$EndComp
$Comp
L JUMPER JP1
U 1 1 5557C31C
P 10050 4800
F 0 "JP1" H 10050 4950 60  0000 C CNN
F 1 "JUMPER" H 10050 4720 40  0000 C CNN
F 2 "~" H 10050 4800 60  0000 C CNN
F 3 "~" H 10050 4800 60  0000 C CNN
	1    10050 4800
	0    -1   -1   0   
$EndComp
$Comp
L C C2
U 1 1 5557C4B0
P 5100 2000
F 0 "C2" H 5100 2100 40  0000 L CNN
F 1 "100nF" H 5106 1915 40  0000 L CNN
F 2 "~" H 5138 1850 30  0000 C CNN
F 3 "~" H 5100 2000 60  0000 C CNN
	1    5100 2000
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR03
U 1 1 5557C4BF
P 5450 2750
F 0 "#PWR03" H 5450 2750 30  0001 C CNN
F 1 "GND" H 5450 2680 30  0001 C CNN
F 2 "" H 5450 2750 60  0000 C CNN
F 3 "" H 5450 2750 60  0000 C CNN
	1    5450 2750
	1    0    0    -1  
$EndComp
$Comp
L CP1 C1
U 1 1 5557C4CE
P 4750 2000
F 0 "C1" H 4800 2100 50  0000 L CNN
F 1 "47uF" H 4800 1900 50  0000 L CNN
F 2 "~" H 4750 2000 60  0000 C CNN
F 3 "~" H 4750 2000 60  0000 C CNN
	1    4750 2000
	1    0    0    -1  
$EndComp
$Comp
L R R5
U 1 1 5557C4DD
P 5450 1900
F 0 "R5" V 5530 1900 40  0000 C CNN
F 1 "1k" V 5457 1901 40  0000 C CNN
F 2 "~" V 5380 1900 30  0000 C CNN
F 3 "~" H 5450 1900 30  0000 C CNN
	1    5450 1900
	1    0    0    -1  
$EndComp
$Comp
L LED D3
U 1 1 5557C4EC
P 5450 2450
F 0 "D3" H 5450 2550 50  0000 C CNN
F 1 "LED" H 5450 2350 50  0000 C CNN
F 2 "~" H 5450 2450 60  0000 C CNN
F 3 "~" H 5450 2450 60  0000 C CNN
	1    5450 2450
	0    1    1    0   
$EndComp
$Comp
L GND #PWR04
U 1 1 5557C505
P 5100 2750
F 0 "#PWR04" H 5100 2750 30  0001 C CNN
F 1 "GND" H 5100 2680 30  0001 C CNN
F 2 "" H 5100 2750 60  0000 C CNN
F 3 "" H 5100 2750 60  0000 C CNN
	1    5100 2750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR05
U 1 1 5557C51E
P 4750 2750
F 0 "#PWR05" H 4750 2750 30  0001 C CNN
F 1 "GND" H 4750 2680 30  0001 C CNN
F 2 "" H 4750 2750 60  0000 C CNN
F 3 "" H 4750 2750 60  0000 C CNN
	1    4750 2750
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR06
U 1 1 5557C627
P 4750 1450
F 0 "#PWR06" H 4750 1540 20  0001 C CNN
F 1 "+5V" H 4750 1540 30  0000 C CNN
F 2 "" H 4750 1450 60  0000 C CNN
F 3 "" H 4750 1450 60  0000 C CNN
	1    4750 1450
	1    0    0    -1  
$EndComp
$Comp
L MCP2551-I/SN IC1
U 1 1 5557C9B9
P 7950 5350
F 0 "IC1" H 7700 5650 40  0000 C CNN
F 1 "MCP2551-I/SN" H 8200 5050 40  0000 C CNN
F 2 "SO8" H 7950 5350 35  0000 C CIN
F 3 "~" H 7950 5350 60  0000 C CNN
	1    7950 5350
	1    0    0    -1  
$EndComp
$Comp
L LTV-352T IC3
U 1 1 555DB3D8
P 6400 5500
F 0 "IC3" H 6186 5679 40  0000 C CNN
F 1 "LTV-352T" H 6505 5315 40  0000 C CNN
F 2 "MFSOP6" H 6236 5325 29  0000 C CNN
F 3 "~" H 6400 5500 60  0000 C CNN
	1    6400 5500
	1    0    0    -1  
$EndComp
$Comp
L LTV-352T IC2
U 1 1 555DB3E7
P 6400 5050
F 0 "IC2" H 6186 5229 40  0000 C CNN
F 1 "LTV-352T" H 6505 4865 40  0000 C CNN
F 2 "MFSOP6" H 6236 4875 29  0000 C CNN
F 3 "~" H 6400 5050 60  0000 C CNN
	1    6400 5050
	-1   0    0    -1  
$EndComp
Text GLabel 7950 4200 1    60   Input ~ 0
BUS_5V
$Comp
L R R8
U 1 1 555DB5D6
P 6750 4550
F 0 "R8" V 6830 4550 40  0000 C CNN
F 1 "390" V 6757 4551 40  0000 C CNN
F 2 "~" V 6680 4550 30  0000 C CNN
F 3 "~" H 6750 4550 30  0000 C CNN
	1    6750 4550
	1    0    0    -1  
$EndComp
Text GLabel 6750 4200 1    60   Input ~ 0
BUS_5V
$Comp
L R R9
U 1 1 555DB70E
P 7000 4550
F 0 "R9" V 7080 4550 40  0000 C CNN
F 1 "1k" V 7007 4551 40  0000 C CNN
F 2 "~" V 6930 4550 30  0000 C CNN
F 3 "~" H 7000 4550 30  0000 C CNN
	1    7000 4550
	1    0    0    -1  
$EndComp
Text GLabel 7000 4200 1    60   Input ~ 0
BUS_5V
$Comp
L R R7
U 1 1 555DB78B
P 5900 4550
F 0 "R7" V 5980 4550 40  0000 C CNN
F 1 "R" V 5907 4551 40  0000 C CNN
F 2 "~" V 5830 4550 30  0000 C CNN
F 3 "~" H 5900 4550 30  0000 C CNN
	1    5900 4550
	1    0    0    -1  
$EndComp
$Comp
L R R6
U 1 1 555DB83F
P 5700 4550
F 0 "R6" V 5780 4550 40  0000 C CNN
F 1 "390" V 5707 4551 40  0000 C CNN
F 2 "~" V 5630 4550 30  0000 C CNN
F 3 "~" H 5700 4550 30  0000 C CNN
	1    5700 4550
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR07
U 1 1 555DB8F2
P 5900 6150
F 0 "#PWR07" H 5900 6150 30  0001 C CNN
F 1 "GND" H 5900 6080 30  0001 C CNN
F 2 "" H 5900 6150 60  0000 C CNN
F 3 "" H 5900 6150 60  0000 C CNN
	1    5900 6150
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR08
U 1 1 555DB901
P 5900 3750
F 0 "#PWR08" H 5900 3840 20  0001 C CNN
F 1 "+5V" H 5900 3840 30  0000 C CNN
F 2 "" H 5900 3750 60  0000 C CNN
F 3 "" H 5900 3750 60  0000 C CNN
	1    5900 3750
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR09
U 1 1 555DB910
P 5700 3750
F 0 "#PWR09" H 5700 3840 20  0001 C CNN
F 1 "+5V" H 5700 3840 30  0000 C CNN
F 2 "" H 5700 3750 60  0000 C CNN
F 3 "" H 5700 3750 60  0000 C CNN
	1    5700 3750
	1    0    0    -1  
$EndComp
Text GLabel 6850 6200 3    60   Input ~ 0
BUS_GND
Text GLabel 7300 6200 3    60   Input ~ 0
BUS_GND
Text GLabel 7950 6200 3    60   Input ~ 0
BUS_GND
Text GLabel 10250 6200 3    60   Input ~ 0
BUS_GND
$Comp
L +5V #PWR010
U 1 1 555DBD12
P 4800 3750
F 0 "#PWR010" H 4800 3840 20  0001 C CNN
F 1 "+5V" H 4800 3840 30  0000 C CNN
F 2 "" H 4800 3750 60  0000 C CNN
F 3 "" H 4800 3750 60  0000 C CNN
	1    4800 3750
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR011
U 1 1 555DBD18
P 5200 3750
F 0 "#PWR011" H 5200 3840 20  0001 C CNN
F 1 "+5V" H 5200 3840 30  0000 C CNN
F 2 "" H 5200 3750 60  0000 C CNN
F 3 "" H 5200 3750 60  0000 C CNN
	1    5200 3750
	1    0    0    -1  
$EndComp
Wire Wire Line
	7300 6150 7300 6200
Wire Wire Line
	2600 3650 2750 3650
Wire Wire Line
	2750 3650 2750 3900
Wire Wire Line
	2600 3350 2750 3350
Wire Wire Line
	2750 3350 2750 3150
Wire Wire Line
	7950 5750 7950 6200
Wire Wire Line
	8400 5250 10250 5250
Wire Wire Line
	8400 5450 10150 5450
Wire Wire Line
	9650 5250 9650 5050
Connection ~ 9650 5250
Wire Wire Line
	9650 4550 9650 4450
Wire Wire Line
	9650 4450 10050 4450
Wire Wire Line
	10050 4450 10050 4500
Wire Wire Line
	10050 5450 10050 5100
Connection ~ 10050 5450
Wire Wire Line
	10250 5450 10250 6200
Wire Wire Line
	10150 5450 10150 5350
Wire Wire Line
	10150 5350 10250 5350
Wire Wire Line
	5450 2750 5450 2650
Wire Wire Line
	5450 2250 5450 2150
Wire Wire Line
	5100 2750 5100 2200
Wire Wire Line
	4750 2750 4750 2200
Wire Wire Line
	4750 1450 4750 1800
Wire Wire Line
	4750 1600 5850 1600
Wire Wire Line
	5450 1600 5450 1650
Wire Wire Line
	5100 1800 5100 1600
Connection ~ 5100 1600
Connection ~ 4750 1600
Wire Wire Line
	7300 5650 7300 5550
Wire Wire Line
	7300 5550 7500 5550
Wire Wire Line
	6750 5150 7500 5150
Wire Wire Line
	7950 4950 7950 4200
Wire Wire Line
	6750 4950 6750 4800
Wire Wire Line
	6750 4300 6750 4200
Wire Wire Line
	7500 5250 7000 5250
Wire Wire Line
	7000 4800 7000 5400
Wire Wire Line
	7000 5400 6750 5400
Connection ~ 7000 5250
Wire Wire Line
	6750 5600 6850 5600
Wire Wire Line
	6850 5600 6850 6200
Wire Wire Line
	7000 4300 7000 4200
Wire Wire Line
	5900 4950 5900 4800
Wire Wire Line
	4450 4950 6050 4950
Wire Wire Line
	5700 5400 6050 5400
Wire Wire Line
	5700 5400 5700 4800
Connection ~ 5900 4950
Wire Wire Line
	5900 4300 5900 3750
Wire Wire Line
	5700 4300 5700 3750
Wire Wire Line
	5200 4950 5200 4850
Wire Wire Line
	5200 4350 5200 4450
Wire Wire Line
	4800 4450 4800 4350
Wire Wire Line
	5900 6150 5900 5150
Wire Wire Line
	5900 5150 6050 5150
Connection ~ 5200 4950
Wire Wire Line
	5200 3850 5200 3750
Wire Wire Line
	4800 3850 4800 3750
Wire Wire Line
	4800 4850 4800 5600
Connection ~ 5450 1600
$Comp
L C C4
U 1 1 555DC2DE
P 7600 2000
F 0 "C4" H 7600 2100 40  0000 L CNN
F 1 "100nF" H 7606 1915 40  0000 L CNN
F 2 "~" H 7638 1850 30  0000 C CNN
F 3 "~" H 7600 2000 60  0000 C CNN
	1    7600 2000
	1    0    0    -1  
$EndComp
$Comp
L CP1 C3
U 1 1 555DC2EA
P 7250 2000
F 0 "C3" H 7300 2100 50  0000 L CNN
F 1 "47uF" H 7300 1900 50  0000 L CNN
F 2 "~" H 7250 2000 60  0000 C CNN
F 3 "~" H 7250 2000 60  0000 C CNN
	1    7250 2000
	1    0    0    -1  
$EndComp
$Comp
L R R10
U 1 1 555DC2F0
P 7950 1900
F 0 "R10" V 8030 1900 40  0000 C CNN
F 1 "1k" V 7957 1901 40  0000 C CNN
F 2 "~" V 7880 1900 30  0000 C CNN
F 3 "~" H 7950 1900 30  0000 C CNN
	1    7950 1900
	1    0    0    -1  
$EndComp
$Comp
L LED D4
U 1 1 555DC2F6
P 7950 2450
F 0 "D4" H 7950 2550 50  0000 C CNN
F 1 "LED" H 7950 2350 50  0000 C CNN
F 2 "~" H 7950 2450 60  0000 C CNN
F 3 "~" H 7950 2450 60  0000 C CNN
	1    7950 2450
	0    1    1    0   
$EndComp
Wire Wire Line
	7950 2750 7950 2650
Wire Wire Line
	7950 2250 7950 2150
Wire Wire Line
	7600 2750 7600 2200
Wire Wire Line
	7250 2750 7250 2200
Wire Wire Line
	7950 1600 7950 1650
Wire Wire Line
	7600 1600 7600 1800
Connection ~ 7600 1600
Connection ~ 7950 1600
Wire Wire Line
	7250 1800 7250 1600
Wire Wire Line
	6950 1600 8250 1600
Wire Wire Line
	8250 1600 8250 1450
Text GLabel 8250 1450 1    60   Input ~ 0
BUS_5V
Text GLabel 7250 2750 3    60   Input ~ 0
BUS_GND
Text GLabel 7600 2750 3    60   Input ~ 0
BUS_GND
Text GLabel 7950 2750 3    60   Input ~ 0
BUS_GND
Wire Notes Line
	6400 2300 6400 4850
Wire Notes Line
	6400 5750 6400 7350
$Comp
L DCDC U1
U 1 1 555DC8A6
P 6400 1850
F 0 "U1" H 6400 1750 60  0000 C CNN
F 1 "SIM1-0505" H 6400 1950 49  0000 C CNN
F 2 "~" H 6400 1850 60  0000 C CNN
F 3 "~" H 6400 1850 60  0000 C CNN
	1    6400 1850
	1    0    0    -1  
$EndComp
Connection ~ 7250 1600
Text GLabel 6950 2750 3    60   Input ~ 0
BUS_GND
$Comp
L GND #PWR012
U 1 1 555DC925
P 5850 2750
F 0 "#PWR012" H 5850 2750 30  0001 C CNN
F 1 "GND" H 5850 2680 30  0001 C CNN
F 2 "" H 5850 2750 60  0000 C CNN
F 3 "" H 5850 2750 60  0000 C CNN
	1    5850 2750
	1    0    0    -1  
$EndComp
Wire Wire Line
	6950 2100 6950 2750
Wire Wire Line
	5850 2100 5850 2750
Wire Notes Line
	6400 1400 6400 750 
$Comp
L DIODE D5
U 1 1 555DD07E
P 8850 4950
F 0 "D5" H 8850 5050 40  0000 C CNN
F 1 "DIODE" H 8850 4850 40  0000 C CNN
F 2 "~" H 8850 4950 60  0000 C CNN
F 3 "~" H 8850 4950 60  0000 C CNN
	1    8850 4950
	0    -1   -1   0   
$EndComp
$Comp
L DIODE D7
U 1 1 555DD095
P 9200 4950
F 0 "D7" H 9200 5050 40  0000 C CNN
F 1 "DIODE" H 9200 4850 40  0000 C CNN
F 2 "~" H 9200 4950 60  0000 C CNN
F 3 "~" H 9200 4950 60  0000 C CNN
	1    9200 4950
	0    -1   -1   0   
$EndComp
$Comp
L DIODE D6
U 1 1 555DD09B
P 8850 5750
F 0 "D6" H 8850 5850 40  0000 C CNN
F 1 "DIODE" H 8850 5650 40  0000 C CNN
F 2 "~" H 8850 5750 60  0000 C CNN
F 3 "~" H 8850 5750 60  0000 C CNN
	1    8850 5750
	0    -1   -1   0   
$EndComp
$Comp
L DIODE D8
U 1 1 555DD0A1
P 9200 5750
F 0 "D8" H 9200 5850 40  0000 C CNN
F 1 "DIODE" H 9200 5650 40  0000 C CNN
F 2 "~" H 9200 5750 60  0000 C CNN
F 3 "~" H 9200 5750 60  0000 C CNN
	1    9200 5750
	0    -1   -1   0   
$EndComp
Wire Wire Line
	9200 5150 9200 5550
Connection ~ 9200 5250
Wire Wire Line
	8850 5150 8850 5550
Connection ~ 8850 5450
Text GLabel 9200 6200 3    60   Input ~ 0
BUS_GND
Text GLabel 8850 6200 3    60   Input ~ 0
BUS_GND
Wire Wire Line
	9200 6200 9200 5950
Wire Wire Line
	8850 6200 8850 5950
Text GLabel 8850 4200 1    60   Input ~ 0
BUS_5V
Text GLabel 9200 4200 1    60   Input ~ 0
BUS_5V
Wire Wire Line
	9200 4750 9200 4200
Wire Wire Line
	8850 4750 8850 4200
$Comp
L 74HCT125 U2
U 1 1 555DD9E4
P 2750 5550
F 0 "U2" H 2750 5300 60  0000 C CNN
F 1 "74HCT125" V 2750 5600 60  0000 C CNN
F 2 "~" H 3300 5850 60  0000 C CNN
F 3 "~" H 3300 5850 60  0000 C CNN
	1    2750 5550
	1    0    0    -1  
$EndComp
Connection ~ 4800 5300
Wire Wire Line
	4800 5600 6050 5600
Wire Wire Line
	4450 5300 4800 5300
Text GLabel 4450 4950 0    60   Input ~ 0
RXD
Text GLabel 4450 5300 0    60   Input ~ 0
TXD
Text GLabel 3550 4950 2    60   Input ~ 0
TXD
Wire Wire Line
	3450 4950 3550 4950
Text GLabel 1950 5300 0    60   Input ~ 0
RXD
Wire Wire Line
	1950 5300 2050 5300
Text GLabel 3550 5300 2    60   Input ~ 0
RXDout
Text GLabel 1950 4950 0    60   Input ~ 0
TXDin
Wire Wire Line
	1950 4950 2050 4950
Wire Wire Line
	3450 5300 3550 5300
Wire Wire Line
	2050 5100 1650 5100
Wire Wire Line
	1650 5100 1650 6650
Wire Wire Line
	2050 5450 1650 5450
Connection ~ 1650 5450
Wire Wire Line
	2750 6500 2750 6650
$Comp
L GND #PWR013
U 1 1 555DDFCF
P 1650 6650
F 0 "#PWR013" H 1650 6650 30  0001 C CNN
F 1 "GND" H 1650 6580 30  0001 C CNN
F 2 "" H 1650 6650 60  0000 C CNN
F 3 "" H 1650 6650 60  0000 C CNN
	1    1650 6650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR014
U 1 1 555DDFDE
P 2750 6650
F 0 "#PWR014" H 2750 6650 30  0001 C CNN
F 1 "GND" H 2750 6580 30  0001 C CNN
F 2 "" H 2750 6650 60  0000 C CNN
F 3 "" H 2750 6650 60  0000 C CNN
	1    2750 6650
	1    0    0    -1  
$EndComp
Wire Wire Line
	2750 4600 2750 4450
$Comp
L +5V #PWR015
U 1 1 555DE04E
P 2750 4450
F 0 "#PWR015" H 2750 4540 20  0001 C CNN
F 1 "+5V" H 2750 4540 30  0000 C CNN
F 2 "" H 2750 4450 60  0000 C CNN
F 3 "" H 2750 4450 60  0000 C CNN
	1    2750 4450
	1    0    0    -1  
$EndComp
Wire Wire Line
	2600 3450 2900 3450
Wire Wire Line
	2900 3450 2900 3400
Wire Wire Line
	2900 3400 3100 3400
Wire Wire Line
	2600 3550 2900 3550
Wire Wire Line
	2900 3550 2900 3600
Wire Wire Line
	2900 3600 3100 3600
Text GLabel 3100 3400 2    60   Input ~ 0
TXDin
Text GLabel 3100 3600 2    60   Input ~ 0
RXDout
Text Notes 7550 900  0    197  ~ 0
Bus side
Text Notes 3950 900  0    197  ~ 0
Input side
$EndSCHEMATC