EESchema Schematic File Version 4
EELAYER 26 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector:8P8C J?
U 1 1 5B72E546
P 7200 2150
F 0 "J?" H 7255 2817 50  0000 C CNN
F 1 "8P8C" H 7255 2726 50  0000 C CNN
F 2 "" V 7200 2175 50  0001 C CNN
F 3 "~" V 7200 2175 50  0001 C CNN
	1    7200 2150
	-1   0    0    1   
$EndComp
$Comp
L Interface_Expansion:PCF8574 U?
U 1 1 5B72E735
P 1400 5950
F 0 "U?" H 1400 6828 50  0000 C CNN
F 1 "PCF8574" H 1400 6737 50  0000 C CNN
F 2 "" H 1400 5950 50  0001 C CNN
F 3 "http://www.nxp.com/documents/data_sheet/PCF8574_PCF8574A.pdf" H 1400 5950 50  0001 C CNN
	1    1400 5950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5B72E959
P 1400 6800
F 0 "#PWR?" H 1400 6550 50  0001 C CNN
F 1 "GND" H 1405 6627 50  0000 C CNN
F 2 "" H 1400 6800 50  0001 C CNN
F 3 "" H 1400 6800 50  0001 C CNN
	1    1400 6800
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5B72E9AC
P 1400 5150
F 0 "#PWR?" H 1400 5000 50  0001 C CNN
F 1 "+5V" H 1415 5323 50  0000 C CNN
F 2 "" H 1400 5150 50  0001 C CNN
F 3 "" H 1400 5150 50  0001 C CNN
	1    1400 5150
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 5150 1400 5250
Wire Wire Line
	1400 6650 1400 6800
NoConn ~ 17850 -3100
NoConn ~ 24650 -800
$Comp
L Isolator:LTV-847 U?
U 1 1 5B733EB2
P 3200 3100
F 0 "U?" H 3200 3425 50  0000 C CNN
F 1 "LTV-847" H 3200 3334 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 2900 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 3100 50  0001 L CNN
	1    3200 3100
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 2 1 5B733FBE
P 3200 3650
F 0 "U?" H 3200 3975 50  0000 C CNN
F 1 "LTV-847" H 3200 3884 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 3450 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 3650 50  0001 L CNN
	2    3200 3650
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 3 1 5B734057
P 3200 4200
F 0 "U?" H 3200 4525 50  0000 C CNN
F 1 "LTV-847" H 3200 4434 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 4000 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 4200 50  0001 L CNN
	3    3200 4200
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 4 1 5B7340EB
P 3200 4750
F 0 "U?" H 3200 5075 50  0000 C CNN
F 1 "LTV-847" H 3200 4984 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 4550 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 4750 50  0001 L CNN
	4    3200 4750
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 1 1 5B7353E2
P 3200 950
F 0 "U?" H 3200 1275 50  0000 C CNN
F 1 "LTV-847" H 3200 1184 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 750 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 950 50  0001 L CNN
	1    3200 950 
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 2 1 5B7353E8
P 3200 1500
F 0 "U?" H 3200 1825 50  0000 C CNN
F 1 "LTV-847" H 3200 1734 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 1300 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 1500 50  0001 L CNN
	2    3200 1500
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 3 1 5B7353EE
P 3200 2050
F 0 "U?" H 3200 2375 50  0000 C CNN
F 1 "LTV-847" H 3200 2284 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 1850 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 2050 50  0001 L CNN
	3    3200 2050
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 4 1 5B7353F4
P 3200 2550
F 0 "U?" H 3200 2875 50  0000 C CNN
F 1 "LTV-847" H 3200 2784 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 2350 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 2550 50  0001 L CNN
	4    3200 2550
	1    0    0    -1  
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B738E50
P 5050 850
F 0 "Q?" H 5241 804 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 895 50  0000 L CNN
F 2 "" H 5250 950 50  0001 C CNN
F 3 "~" H 5050 850 50  0001 C CNN
	1    5050 850 
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B73B28F
P 5050 1400
F 0 "Q?" H 5241 1354 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 1445 50  0000 L CNN
F 2 "" H 5250 1500 50  0001 C CNN
F 3 "~" H 5050 1400 50  0001 C CNN
	1    5050 1400
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B73B2EB
P 5050 1950
F 0 "Q?" H 5241 1904 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 1995 50  0000 L CNN
F 2 "" H 5250 2050 50  0001 C CNN
F 3 "~" H 5050 1950 50  0001 C CNN
	1    5050 1950
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B741988
P 5050 2450
F 0 "Q?" H 5241 2404 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 2495 50  0000 L CNN
F 2 "" H 5250 2550 50  0001 C CNN
F 3 "~" H 5050 2450 50  0001 C CNN
	1    5050 2450
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B74198E
P 5050 3000
F 0 "Q?" H 5241 2954 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 3045 50  0000 L CNN
F 2 "" H 5250 3100 50  0001 C CNN
F 3 "~" H 5050 3000 50  0001 C CNN
	1    5050 3000
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B741994
P 5050 3550
F 0 "Q?" H 5241 3504 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 3595 50  0000 L CNN
F 2 "" H 5250 3650 50  0001 C CNN
F 3 "~" H 5050 3550 50  0001 C CNN
	1    5050 3550
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B741B64
P 5050 4100
F 0 "Q?" H 5241 4054 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 4145 50  0000 L CNN
F 2 "" H 5250 4200 50  0001 C CNN
F 3 "~" H 5050 4100 50  0001 C CNN
	1    5050 4100
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B741B6A
P 5050 4650
F 0 "Q?" H 5241 4604 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 4695 50  0000 L CNN
F 2 "" H 5250 4750 50  0001 C CNN
F 3 "~" H 5050 4650 50  0001 C CNN
	1    5050 4650
	1    0    0    1   
$EndComp
Wire Wire Line
	6800 1850 6700 1850
Wire Wire Line
	6700 1850 6700 1050
Wire Wire Line
	5150 1600 6650 1600
Wire Wire Line
	6650 1600 6650 1950
Wire Wire Line
	6650 1950 6800 1950
Wire Wire Line
	6800 2050 5850 2050
Wire Wire Line
	5850 2050 5850 2150
Wire Wire Line
	5850 2150 5150 2150
Wire Wire Line
	5150 2650 5900 2650
Wire Wire Line
	5900 2650 5900 2350
Wire Wire Line
	5900 2350 6800 2350
Wire Wire Line
	5150 3200 5950 3200
Wire Wire Line
	5950 3200 5950 2450
Wire Wire Line
	5950 2450 6800 2450
Wire Wire Line
	5150 3750 6000 3750
Wire Wire Line
	6000 3750 6000 2550
Wire Wire Line
	6000 2550 6800 2550
$Comp
L Connector:8P8C J?
U 1 1 5B742CE5
P 7200 3450
F 0 "J?" H 7255 4117 50  0000 C CNN
F 1 "8P8C" H 7255 4026 50  0000 C CNN
F 2 "" V 7200 3475 50  0001 C CNN
F 3 "~" V 7200 3475 50  0001 C CNN
	1    7200 3450
	-1   0    0    1   
$EndComp
Wire Wire Line
	5150 4300 6100 4300
Wire Wire Line
	6100 4300 6100 3150
Wire Wire Line
	6100 3150 6800 3150
Wire Wire Line
	5150 4850 6150 4850
Wire Wire Line
	6150 4850 6150 3250
Wire Wire Line
	6150 3250 6800 3250
$Comp
L Isolator:LTV-847 U?
U 1 1 5B745234
P 3200 5300
F 0 "U?" H 3200 5625 50  0000 C CNN
F 1 "LTV-847" H 3200 5534 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 5100 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 5300 50  0001 L CNN
	1    3200 5300
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 2 1 5B74523A
P 3200 5850
F 0 "U?" H 3200 6175 50  0000 C CNN
F 1 "LTV-847" H 3200 6084 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 5650 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 5850 50  0001 L CNN
	2    3200 5850
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 3 1 5B745240
P 3200 6400
F 0 "U?" H 3200 6725 50  0000 C CNN
F 1 "LTV-847" H 3200 6634 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 6200 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 6400 50  0001 L CNN
	3    3200 6400
	1    0    0    -1  
$EndComp
$Comp
L Isolator:LTV-847 U?
U 4 1 5B745246
P 3200 6950
F 0 "U?" H 3200 7275 50  0000 C CNN
F 1 "LTV-847" H 3200 7184 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 3000 6750 50  0001 L CIN
F 3 "http://optoelectronics.liteon.com/upload/download/DS-70-96-0016/LTV-8X7%20series.PDF" H 3200 6950 50  0001 L CNN
	4    3200 6950
	1    0    0    -1  
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B74524C
P 5050 5200
F 0 "Q?" H 5241 5154 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 5245 50  0000 L CNN
F 2 "" H 5250 5300 50  0001 C CNN
F 3 "~" H 5050 5200 50  0001 C CNN
	1    5050 5200
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B745252
P 5050 5750
F 0 "Q?" H 5241 5704 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 5795 50  0000 L CNN
F 2 "" H 5250 5850 50  0001 C CNN
F 3 "~" H 5050 5750 50  0001 C CNN
	1    5050 5750
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B745258
P 5050 6300
F 0 "Q?" H 5241 6254 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 6345 50  0000 L CNN
F 2 "" H 5250 6400 50  0001 C CNN
F 3 "~" H 5050 6300 50  0001 C CNN
	1    5050 6300
	1    0    0    1   
$EndComp
$Comp
L Device:Q_PNP_ECB Q?
U 1 1 5B74525E
P 5050 6850
F 0 "Q?" H 5241 6804 50  0000 L CNN
F 1 "Q_PNP_ECB" H 5241 6895 50  0000 L CNN
F 2 "" H 5250 6950 50  0001 C CNN
F 3 "~" H 5050 6850 50  0001 C CNN
	1    5050 6850
	1    0    0    1   
$EndComp
Wire Wire Line
	5150 5400 6200 5400
Wire Wire Line
	6200 5400 6200 3350
Wire Wire Line
	6200 3350 6800 3350
Wire Wire Line
	5150 5950 6250 5950
Wire Wire Line
	6250 5950 6250 3650
Wire Wire Line
	6250 3650 6800 3650
Wire Wire Line
	6300 6500 6300 3750
Wire Wire Line
	6300 3750 6800 3750
Wire Wire Line
	6350 7050 6350 3850
Wire Wire Line
	6350 3850 6800 3850
Wire Wire Line
	6500 7650 6500 3550
Wire Wire Line
	6500 2150 6800 2150
Wire Wire Line
	6800 2250 6500 2250
Connection ~ 6500 2250
Wire Wire Line
	6500 2250 6500 2150
Wire Wire Line
	6800 3450 6500 3450
Connection ~ 6500 3450
Wire Wire Line
	6500 3450 6500 2250
Wire Wire Line
	6800 3550 6500 3550
Connection ~ 6500 3550
Wire Wire Line
	6500 3550 6500 3450
Wire Wire Line
	3500 1050 3700 1050
Wire Wire Line
	3700 1050 3700 7250
Wire Wire Line
	3500 1600 3800 1600
Wire Wire Line
	3800 1600 3800 7250
Wire Wire Line
	3900 7250 3900 2150
Wire Wire Line
	3900 2150 3500 2150
Wire Wire Line
	4000 7250 4000 2650
Wire Wire Line
	4000 2650 3500 2650
Wire Wire Line
	4100 7250 4100 3200
Wire Wire Line
	4100 3200 3500 3200
Wire Wire Line
	4200 7250 4200 3750
Wire Wire Line
	4200 3750 3500 3750
Wire Wire Line
	4300 7250 4300 4300
Wire Wire Line
	4300 4300 3500 4300
Wire Wire Line
	4400 7250 4400 4850
Wire Wire Line
	4400 4850 3500 4850
$Comp
L Device:R_Network12 RN?
U 1 1 5B75BF03
P 4300 7450
F 0 "RN?" H 3620 7404 50  0000 R CNN
F 1 "R_Network12" H 3620 7495 50  0000 R CNN
F 2 "Resistor_THT:R_Array_SIP13" V 4975 7450 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 4300 7450 50  0001 C CNN
	1    4300 7450
	1    0    0    1   
$EndComp
$Comp
L Device:R_Network12 RN?
U 1 1 5B75C1E1
P 7900 5500
F 0 "RN?" H 8480 5546 50  0000 L CNN
F 1 "R_Network12" H 8480 5455 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP13" V 8575 5500 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 7900 5500 50  0001 C CNN
	1    7900 5500
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Network12 RN?
U 1 1 5B75C249
P 7900 6050
F 0 "RN?" H 8480 6096 50  0000 L CNN
F 1 "R_Network12" H 8480 6005 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP13" V 8575 6050 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 7900 6050 50  0001 C CNN
	1    7900 6050
	1    0    0    -1  
$EndComp
Wire Wire Line
	3500 5400 4500 5400
Wire Wire Line
	4500 5400 4500 7250
Wire Wire Line
	3500 5950 4600 5950
Wire Wire Line
	4600 5950 4600 7250
Wire Wire Line
	3500 6500 4700 6500
Wire Wire Line
	4700 6500 4700 7250
Wire Wire Line
	3500 7050 4800 7050
Wire Wire Line
	4800 7050 4800 7250
Wire Wire Line
	3500 6850 4850 6850
Wire Wire Line
	3500 6300 4850 6300
Wire Wire Line
	3500 5750 4850 5750
Wire Wire Line
	3500 5200 4850 5200
Wire Wire Line
	3500 4650 4850 4650
Wire Wire Line
	3500 4100 4850 4100
Wire Wire Line
	3500 3550 4850 3550
Wire Wire Line
	3500 3000 4850 3000
Wire Wire Line
	3500 2450 4850 2450
Wire Wire Line
	3500 1950 4850 1950
Wire Wire Line
	3500 1400 4850 1400
Wire Wire Line
	3500 850  4850 850 
Wire Wire Line
	5150 1050 6700 1050
$Comp
L Interface_Expansion:PCF8574 U?
U 1 1 5B797237
P 1400 2600
F 0 "U?" H 1400 3478 50  0000 C CNN
F 1 "PCF8574" H 1400 3387 50  0000 C CNN
F 2 "" H 1400 2600 50  0001 C CNN
F 3 "http://www.nxp.com/documents/data_sheet/PCF8574_PCF8574A.pdf" H 1400 2600 50  0001 C CNN
	1    1400 2600
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5B79723D
P 1400 3450
F 0 "#PWR?" H 1400 3200 50  0001 C CNN
F 1 "GND" H 1405 3277 50  0000 C CNN
F 2 "" H 1400 3450 50  0001 C CNN
F 3 "" H 1400 3450 50  0001 C CNN
	1    1400 3450
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5B797243
P 1400 1800
F 0 "#PWR?" H 1400 1650 50  0001 C CNN
F 1 "+5V" H 1415 1973 50  0000 C CNN
F 2 "" H 1400 1800 50  0001 C CNN
F 3 "" H 1400 1800 50  0001 C CNN
	1    1400 1800
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 1800 1400 1900
Wire Wire Line
	1400 3300 1400 3450
Wire Wire Line
	1900 2200 1950 2200
Wire Wire Line
	2900 1050 1950 1050
Wire Wire Line
	1950 1050 1950 2200
Wire Wire Line
	2900 1600 2000 1600
Wire Wire Line
	2000 1600 2000 2300
Wire Wire Line
	2000 2300 1900 2300
Wire Wire Line
	2900 2150 2050 2150
Wire Wire Line
	2050 2150 2050 2400
Wire Wire Line
	2050 2400 1900 2400
Wire Wire Line
	1900 2900 1950 2900
Wire Wire Line
	1900 2800 2000 2800
Wire Wire Line
	1900 2700 2050 2700
Wire Wire Line
	1900 2600 2100 2600
Wire Wire Line
	1900 2500 2150 2500
Wire Wire Line
	2150 2500 2150 2650
Wire Wire Line
	2150 2650 2900 2650
Wire Wire Line
	2900 3200 2100 3200
Wire Wire Line
	2100 2600 2100 3200
Wire Wire Line
	2900 3750 2050 3750
Wire Wire Line
	2050 2700 2050 3750
Wire Wire Line
	2900 4300 2000 4300
Wire Wire Line
	2000 2800 2000 4300
Wire Wire Line
	2900 4850 1950 4850
Wire Wire Line
	1950 2900 1950 4850
Wire Wire Line
	1900 5550 2500 5550
Wire Wire Line
	2500 5550 2500 5400
Wire Wire Line
	2500 5400 2900 5400
Wire Wire Line
	1900 5650 2500 5650
Wire Wire Line
	2500 5650 2500 5950
Wire Wire Line
	2500 5950 2900 5950
Wire Wire Line
	1900 5750 2450 5750
Wire Wire Line
	2450 5750 2450 6500
Wire Wire Line
	2450 6500 2900 6500
Wire Wire Line
	1900 5850 2400 5850
Wire Wire Line
	2400 5850 2400 7050
Wire Wire Line
	2400 7050 2900 7050
Wire Wire Line
	3700 7650 6500 7650
Wire Wire Line
	5150 7050 6350 7050
Wire Wire Line
	5150 6500 6300 6500
$EndSCHEMATC