EESchema Schematic File Version 2 date Fri Sep 30 02:13:49 2011 LIBS:power LIBS:device LIBS:conn LIBS:c8051f320 LIBS:mini_usb_b LIBS:opto-trans-4 LIBS:spdt-c LIBS:dual_diode LIBS:opto-trans-8 LIBS:labsw-cache EELAYER 24 0 EELAYER END $Descr A4 11700 8267 Sheet 2 4 Title "Lab Switch (CH1/2)" Date "30 sep 2011" Rev "1" Comp "Werner Almesberger" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L OPTO-TRANS-4 U7 U 1 1 4E854A18 P 5300 5650 F 0 "U7" H 5150 5850 60 0000 C CNN F 1 "OPTO-TRANS-4" H 5300 5425 60 0000 C CNN 1 5300 5650 -1 0 0 -1 $EndComp $Comp L OPTO-TRANS-4 U6 U 1 1 4E854A0D P 5300 3150 F 0 "U6" H 5150 3350 60 0000 C CNN F 1 "OPTO-TRANS-4" H 5300 2925 60 0000 C CNN 1 5300 3150 -1 0 0 -1 $EndComp Wire Wire Line 2900 5550 4900 5550 Connection ~ 6000 2750 Wire Wire Line 6000 2500 6000 2750 Wire Wire Line 7450 5650 7650 5650 Wire Wire Line 7450 3150 7650 3150 Wire Wire Line 5650 5750 6350 5750 Wire Wire Line 5650 3250 6350 3250 Wire Wire Line 7150 2750 5500 2750 Wire Wire Line 5650 3050 6750 3050 Wire Wire Line 7150 2750 7150 2950 Wire Wire Line 7150 3350 7150 3550 Wire Wire Line 6750 5000 6750 5550 Wire Wire Line 5500 5050 5500 5250 Connection ~ 6600 1750 Wire Wire Line 6600 1600 6600 1750 Wire Wire Line 6750 2000 6750 1750 Wire Wire Line 6750 1750 5500 1750 Wire Wire Line 5500 1750 5500 1950 Connection ~ 4500 2750 Wire Wire Line 4900 3250 4500 3250 Wire Wire Line 4500 3250 4500 2250 Wire Wire Line 2950 4750 4500 4750 Wire Wire Line 4500 5250 5300 5250 Wire Wire Line 5300 5250 5300 5050 Connection ~ 5300 4050 Wire Wire Line 5300 4450 5300 4050 Connection ~ 5100 4250 Wire Wire Line 5100 4450 5100 4250 Connection ~ 5100 1750 Wire Wire Line 5100 1950 5100 1750 Connection ~ 5200 2750 Wire Wire Line 5200 2550 5200 2750 Connection ~ 5300 1550 Wire Wire Line 5300 1950 5300 1550 Wire Wire Line 5400 1950 5400 1550 Wire Wire Line 5400 1550 4500 1550 Wire Wire Line 4500 1550 4500 2150 Wire Wire Line 4500 2150 2950 2150 Wire Wire Line 5300 2550 5300 2750 Wire Wire Line 5300 2750 4500 2750 Wire Wire Line 4500 2250 2950 2250 Wire Wire Line 2950 2350 4700 2350 Wire Wire Line 5200 1750 4700 1750 Wire Wire Line 5200 1750 5200 1950 Wire Wire Line 5200 4450 5200 4250 Wire Wire Line 5200 4250 4700 4250 Wire Wire Line 4700 4250 4700 4850 Wire Wire Line 4700 4850 2950 4850 Wire Wire Line 4500 4050 5400 4050 Wire Wire Line 4500 4050 4500 4650 Wire Wire Line 4500 4650 2950 4650 Wire Wire Line 5400 4050 5400 4450 Wire Wire Line 5200 5050 5200 5250 Connection ~ 5200 5250 Wire Wire Line 4700 1750 4700 2350 Wire Wire Line 4500 4750 4500 5750 Wire Wire Line 4500 5750 4900 5750 Connection ~ 4500 5250 Wire Wire Line 5500 4450 5500 4250 Wire Wire Line 5500 4250 6750 4250 Wire Wire Line 6750 4250 6750 4500 Wire Wire Line 6600 4100 6600 4250 Connection ~ 6600 4250 Wire Wire Line 5500 2750 5500 2550 Wire Wire Line 6750 3050 6750 2500 Wire Wire Line 7150 6050 7150 5850 Wire Wire Line 7150 5450 7150 5250 Wire Wire Line 6750 5550 5650 5550 Wire Wire Line 7150 5250 5500 5250 Wire Wire Line 8150 3150 8350 3150 Wire Wire Line 8150 5650 8350 5650 Wire Wire Line 6200 2000 6200 1750 Connection ~ 6200 1750 Wire Wire Line 6200 4250 6200 4500 Connection ~ 6200 4250 Wire Wire Line 6000 5000 6000 5250 Connection ~ 6000 5250 Wire Wire Line 2900 3050 4900 3050 $Comp L CONN_1 P6 U 1 1 4E8089CC P 2750 5550 F 0 "P6" H 2830 5550 40 0000 L CNN F 1 "CONN_1" H 2750 5605 30 0001 C CNN 1 2750 5550 -1 0 0 1 $EndComp $Comp L CONN_1 P5 U 1 1 4E8089C8 P 2750 3050 F 0 "P5" H 2830 3050 40 0000 L CNN F 1 "CONN_1" H 2750 3105 30 0001 C CNN 1 2750 3050 -1 0 0 1 $EndComp $Comp L +5V #PWR018 U 1 1 4E6BEEF5 P 6600 1600 F 0 "#PWR018" H 6600 1690 20 0001 C CNN F 1 "+5V" H 6600 1690 50 0000 C CNN 1 6600 1600 1 0 0 -1 $EndComp $Comp L +5V #PWR019 U 1 1 4E6BEEF4 P 6600 4100 F 0 "#PWR019" H 6600 4190 20 0001 C CNN F 1 "+5V" H 6600 4190 50 0000 C CNN 1 6600 4100 1 0 0 -1 $EndComp $Comp L R R19 U 1 1 4E6BEEF3 P 6750 2250 F 0 "R19" V 6830 2250 50 0000 C CNN F 1 "150" V 6750 2250 50 0000 C CNN 1 6750 2250 -1 0 0 1 $EndComp $Comp L R R20 U 1 1 4E6BEEF2 P 6750 4750 F 0 "R20" V 6830 4750 50 0000 C CNN F 1 "150" V 6750 4750 50 0000 C CNN 1 6750 4750 -1 0 0 1 $EndComp $Comp L CONN_3 K2 U 1 1 4E6BEEF0 P 2600 4750 F 0 "K2" V 2550 4750 50 0000 C CNN F 1 "CONN_3" V 2650 4750 40 0000 C CNN 1 2600 4750 -1 0 0 -1 $EndComp $Comp L CONN_3 K1 U 1 1 4E6BEEEF P 2600 2250 F 0 "K1" V 2550 2250 50 0000 C CNN F 1 "CONN_3" V 2650 2250 40 0000 C CNN 1 2600 2250 -1 0 0 -1 $EndComp $Comp L SPDT-C K4 U 1 1 4E6BEEEE P 5400 4750 F 0 "K4" H 5100 4750 60 0000 C CNN F 1 "SPDT-C" H 5850 4700 60 0000 C CNN 1 5400 4750 -1 0 0 -1 $EndComp $Comp L SPDT-C K3 U 1 1 4E6BEEED P 5400 2250 F 0 "K3" H 5100 2250 60 0000 C CNN F 1 "SPDT-C" H 5850 2200 60 0000 C CNN 1 5400 2250 -1 0 0 -1 $EndComp Text GLabel 6350 3250 2 60 Input ~ 0 CH1_OPT Text GLabel 6350 5750 2 60 Input ~ 0 CH2_OPT $Comp L NPN Q1 U 1 1 4E6BEEEC P 7250 3150 F 0 "Q1" H 7250 3000 50 0000 R CNN F 1 "NPN" H 7250 3300 50 0000 R CNN 1 7250 3150 -1 0 0 -1 $EndComp $Comp L NPN Q2 U 1 1 4E6BEEEB P 7250 5650 F 0 "Q2" H 7250 5500 50 0000 R CNN F 1 "NPN" H 7250 5800 50 0000 R CNN 1 7250 5650 -1 0 0 -1 $EndComp $Comp L GND #PWR020 U 1 1 4E6BEEEA P 7150 3550 F 0 "#PWR020" H 7150 3550 30 0001 C CNN F 1 "GND" H 7150 3480 30 0001 C CNN 1 7150 3550 1 0 0 -1 $EndComp $Comp L GND #PWR021 U 1 1 4E6BEEE9 P 7150 6050 F 0 "#PWR021" H 7150 6050 30 0001 C CNN F 1 "GND" H 7150 5980 30 0001 C CNN 1 7150 6050 1 0 0 -1 $EndComp Text GLabel 8350 3150 2 60 Input ~ 0 CH1_RELAY Text GLabel 8350 5650 2 60 Input ~ 0 CH2_RELAY $Comp L R R21 U 1 1 4E6BEEE8 P 7900 3150 F 0 "R21" V 7980 3150 50 0000 C CNN F 1 "1k" V 7900 3150 50 0000 C CNN 1 7900 3150 0 -1 -1 0 $EndComp $Comp L R R22 U 1 1 4E6BEEE7 P 7900 5650 F 0 "R22" V 7980 5650 50 0000 C CNN F 1 "1k" V 7900 5650 50 0000 C CNN 1 7900 5650 0 -1 -1 0 $EndComp Text Label 3150 2150 0 60 ~ 0 EXT_CH1_OFF Text Label 3150 2250 0 60 ~ 0 EXT_CH1_COM Text Label 3150 2350 0 60 ~ 0 EXT_CH1_ON Text Label 3150 4650 0 60 ~ 0 EXT_CH2_OFF Text Label 3150 4750 0 60 ~ 0 EXT_CH2_COM Text Label 3150 4850 0 60 ~ 0 EXT_CH2_ON Text Label 3150 3050 0 60 ~ 0 EXT_CH1_OPT Text Label 3150 5550 0 60 ~ 0 EXT_CH2_OPT $Comp L DS D1 U 1 1 4E6BEEE6 P 6200 2250 F 0 "D1" H 6000 2400 40 0000 C CNN F 1 "DS" H 6200 2100 40 0000 C CNN 1 6200 2250 1 0 0 -1 $EndComp $Comp L DS D2 U 1 1 4E6BEEE5 P 6200 4750 F 0 "D2" H 6000 4900 40 0000 C CNN F 1 "DS" H 6200 4600 40 0000 C CNN 1 6200 4750 1 0 0 -1 $EndComp NoConn ~ 6400 2500 NoConn ~ 6400 5000 $EndSCHEMATC