diff --git a/docs/STM_74HCT125_74HCT126.pdf b/docs/STM_74HCT125_74HCT126.pdf
new file mode 100644
index 0000000..49fc8e5
Binary files /dev/null and b/docs/STM_74HCT125_74HCT126.pdf differ
diff --git a/schem/avr_board.sch b/schem/avr_board.sch
index 0e606b1..fe5fd13 100644
--- a/schem/avr_board.sch
+++ b/schem/avr_board.sch
@@ -1,425 +1,407 @@
 v 20130925 2
-C 47000 44000 1 0 0 atmega164-644.sym
+C 47400 49400 1 0 0 atmega164-644.sym
 {
-T 51000 48800 5 10 1 1 0 6 1
+T 51400 54200 5 10 1 1 0 6 1
 refdes=U1
-T 47400 49000 5 10 0 0 0 0 1
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 device=ATMEGA164/324/644
-T 47400 49200 5 10 0 0 0 0 1
+T 47800 54600 5 10 0 0 0 0 1
 footprint=DIP40
 }
-C 48300 42800 1 90 0 capacitor-1.sym
+C 48700 48200 1 90 0 capacitor-1.sym
 {
-T 47600 43000 5 10 0 0 90 0 1
+T 48000 48400 5 10 0 0 90 0 1
 device=CAPACITOR
-T 48000 43500 5 10 1 1 180 0 1
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 refdes=C2
-T 47400 43000 5 10 0 0 90 0 1
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 symversion=0.1
-T 47500 43000 5 10 1 1 0 0 1
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 value=100 nF
-T 48300 42800 5 10 0 1 0 0 1
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 footprint=ACY100
 }
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-N 46500 46500 46500 46400 4
-N 46500 48900 46500 46700 4
-N 46500 46700 47100 46700 4
-N 43800 47500 47100 47500 4
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 {
-T 43800 47500 5 10 1 1 0 0 1
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 netname=PROG_MOSI
 }
-N 47100 47300 43800 47300 4
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 {
-T 43800 47300 5 10 1 1 0 0 1
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 netname=PROG_MISO
 }
-N 43800 47100 47100 47100 4
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 {
-T 43800 47100 5 10 1 1 0 0 1
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 netname=PROG_SCK
 }
-N 47100 46900 43800 46900 4
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 {
-T 43800 46900 5 10 1 1 0 0 1
+T 44200 52300 5 10 1 1 0 0 1
 netname=RESET
 }
-C 49200 42800 1 90 0 capacitor-1.sym
+C 49600 48200 1 90 0 capacitor-1.sym
 {
-T 48500 43000 5 10 0 0 90 0 1
+T 48900 48400 5 10 0 0 90 0 1
 device=CAPACITOR
-T 48300 43000 5 10 0 0 90 0 1
+T 48700 48400 5 10 0 0 90 0 1
 symversion=0.1
-T 48900 43500 5 10 1 1 180 0 1
+T 49300 48900 5 10 1 1 180 0 1
 refdes=C3
-T 48400 43000 5 10 1 1 0 0 1
+T 48800 48400 5 10 1 1 0 0 1
 value=100 nF
-T 49200 42800 5 10 0 1 0 0 1
+T 49600 48200 5 10 0 1 0 0 1
 footprint=ACY100
 }
-C 48900 42400 1 0 0 gnd-1.sym
-N 49000 42800 49000 42700 4
-N 49000 43700 49000 43900 4
-C 51500 45400 1 0 0 gnd-1.sym
-N 51300 46700 51600 46700 4
-N 51600 46700 51600 45700 4
-N 51300 46500 52000 46500 4
-N 52000 46500 52000 47200 4
-C 52600 45900 1 90 0 capacitor-1.sym
+C 49300 47800 1 0 0 gnd-1.sym
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+N 49400 49100 49400 49300 4
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+N 52000 52100 52000 51100 4
+N 51700 51900 52400 51900 4
+N 52400 51900 52400 52600 4
+C 53000 51300 1 90 0 capacitor-1.sym
 {
-T 51900 46100 5 10 0 0 90 0 1
+T 52300 51500 5 10 0 0 90 0 1
 device=CAPACITOR
-T 51700 46100 5 10 0 0 90 0 1
+T 52100 51500 5 10 0 0 90 0 1
 symversion=0.1
-T 52300 46600 5 10 1 1 180 0 1
+T 52700 52000 5 10 1 1 180 0 1
 refdes=C4
-T 51800 46100 5 10 1 1 0 0 1
+T 52200 51500 5 10 1 1 0 0 1
 value=100 nF
-T 52600 45900 5 10 0 1 0 0 1
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 footprint=ACY100
 }
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-N 52400 46900 52400 46800 4
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-N 44100 45700 47100 45700 4
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 {
-T 44600 45700 5 10 1 1 0 0 1
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 netname=MODEM_TXD
 }
-N 38800 44800 40100 44800 4
+N 37900 44000 39600 44000 4
 {
-T 38800 44800 5 10 1 1 0 0 1
+T 37900 44000 5 10 1 1 0 0 1
 netname=SIM300_RXD
 }
-N 38800 45100 40100 45100 4
+N 37900 44300 39000 44300 4
 {
-T 38800 45100 5 10 1 1 0 0 1
+T 37900 44300 5 10 1 1 0 0 1
 netname=SIM300_TXD
 }
-N 44500 45900 47100 45900 4
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 {
-T 44600 45900 5 10 1 1 0 0 1
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 netname=MODEM_RXD
 }
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 {
-T 38800 44500 5 10 1 1 0 0 1
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 netname=SIM300_RTS
 }
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 {
-T 38800 44200 5 10 1 1 0 0 1
+T 37900 43400 5 10 1 1 0 0 1
 netname=SIM300_CTS
 }
-N 38800 43900 40500 43900 4
+N 37900 43100 40000 43100 4
 {
-T 38800 43900 5 10 1 1 0 0 1
+T 37900 43100 5 10 1 1 0 0 1
 netname=SIM300_DTR
 }
-N 38800 43600 40700 43600 4
+N 37900 42800 39400 42800 4
 {
-T 38800 43600 5 10 1 1 0 0 1
+T 37900 42800 5 10 1 1 0 0 1
 netname=SIM300_DCD
 }
-N 38800 43300 40900 43300 4
+N 37900 42500 40200 42500 4
 {
-T 38800 43300 5 10 1 1 0 0 1
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 netname=SIM300_RI
 }
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+N 45000 50500 47500 50500 4
 {
-T 44600 45100 5 10 1 1 0 0 1
+T 45000 50500 5 10 1 1 0 0 1
 netname=MODEM_RTS
 }
-N 43900 44900 47100 44900 4
+N 45000 50300 47500 50300 4
 {
-T 44600 44900 5 10 1 1 0 0 1
+T 45000 50300 5 10 1 1 0 0 1
 netname=MODEM_CTS
 }
-C 53100 42500 1 0 0 MAX485-1.sym
+C 52900 44900 1 0 0 MAX485-1.sym
 {
-T 53375 45750 5 10 0 0 0 0 1
+T 53175 48150 5 10 0 0 0 0 1
 device=MAX487
-T 54200 43650 5 10 1 1 0 0 1
+T 54000 46050 5 10 1 1 0 0 1
 refdes=U2
-T 53375 44950 5 10 0 0 0 0 1
+T 53175 47350 5 10 0 0 0 0 1
 footprint=SO8
 }
-C 40200 48600 1 0 0 header6-2.sym
+C 39800 49700 1 0 0 header6-2.sym
 {
-T 40500 50300 5 10 0 0 0 0 1
+T 40100 51400 5 10 0 0 0 0 1
 device=HEADER6
-T 40800 49900 5 10 1 1 0 0 1
+T 40400 51000 5 10 1 1 0 0 1
 refdes=J1
-T 40700 48400 5 10 1 1 0 0 1
+T 40300 49500 5 10 1 1 0 0 1
 value=ISP
-T 40200 48600 5 10 0 0 0 0 1
+T 39800 49700 5 10 0 0 0 0 1
 footprint=HEADER6_1
 }
-C 41600 48400 1 0 0 gnd-1.sym
-N 41700 48700 41700 48800 4
-N 41700 48800 41600 48800 4
-N 41600 49600 41700 49600 4
-N 41700 49600 41700 49800 4
-N 41600 49200 43300 49200 4
+C 41200 49500 1 0 0 gnd-1.sym
+N 41300 49800 41300 49900 4
+N 41300 49900 41200 49900 4
+N 41200 50700 41300 50700 4
+N 41300 50700 41300 50900 4
+N 41200 50300 42900 50300 4
 {
-T 41800 49200 5 10 1 1 0 0 1
+T 41400 50300 5 10 1 1 0 0 1
 netname=PROG_MOSI
 }
-N 40200 49600 38800 49600 4
+N 39800 50700 38400 50700 4
 {
-T 39100 49600 5 10 1 1 0 0 1
+T 38700 50700 5 10 1 1 0 0 1
 netname=PROG_MISO
 }
-N 40200 48800 38800 48800 4
+N 37400 49900 39800 49900 4
 {
-T 39100 48800 5 10 1 1 0 0 1
+T 36200 49900 5 10 1 1 0 0 1
 netname=RESET
 }
-N 40200 49200 38800 49200 4
+N 39800 50300 38400 50300 4
 {
-T 39100 49200 5 10 1 1 0 0 1
+T 38700 50300 5 10 1 1 0 0 1
 netname=PROG_SCK
 }
-C 44400 51900 1 90 0 resistor-2.sym
+C 37500 50000 1 90 0 resistor-2.sym
 {
-T 44050 52300 5 10 0 0 90 0 1
+T 37150 50400 5 10 0 0 90 0 1
 device=RESISTOR
-T 44100 52600 5 10 1 1 180 0 1
+T 37200 50700 5 10 1 1 180 0 1
 refdes=R1
-T 43800 52100 5 10 1 1 0 0 1
+T 36900 50200 5 10 1 1 0 0 1
 value=10k
-T 44400 51900 5 10 0 0 0 0 1
+T 37500 50000 5 10 0 0 0 0 1
 footprint=ACY300
 }
-C 44500 50800 1 90 0 capacitor-1.sym
+C 37600 48900 1 90 0 capacitor-1.sym
 {
-T 43800 51000 5 10 0 0 90 0 1
+T 36900 49100 5 10 0 0 90 0 1
 device=CAPACITOR
-T 44200 51500 5 10 1 1 180 0 1
+T 37300 49600 5 10 1 1 180 0 1
 refdes=C1
-T 43600 51000 5 10 0 0 90 0 1
+T 36700 49100 5 10 0 0 90 0 1
 symversion=0.1
-T 43800 51000 5 10 1 1 0 0 1
+T 36900 49100 5 10 1 1 0 0 1
 value=47 nF
-T 44500 50800 5 10 0 0 0 0 1
+T 37600 48900 5 10 0 0 0 0 1
 footprint=RCY100
 }
-N 44300 51700 44300 51900 4
-N 44300 51800 45300 51800 4
+N 37400 49800 37400 50000 4
+C 41100 50900 1 0 0 5V-plus-1.sym
+C 48300 49300 1 0 0 5V-plus-1.sym
+C 49200 49300 1 0 0 5V-plus-1.sym
+C 52200 52600 1 0 0 5V-plus-1.sym
+N 37400 50900 37400 51100 4
+C 37200 51100 1 0 0 5V-plus-1.sym
+C 37300 48500 1 0 0 gnd-1.sym
+N 37400 48800 37400 48900 4
+C 46700 54300 1 0 0 5V-plus-1.sym
+N 47500 50700 45000 50700 4
 {
-T 44600 51800 5 10 1 1 0 0 1
-netname=RESET
-}
-C 41500 49800 1 0 0 5V-plus-1.sym
-C 47900 43900 1 0 0 5V-plus-1.sym
-C 48800 43900 1 0 0 5V-plus-1.sym
-C 51800 47200 1 0 0 5V-plus-1.sym
-N 44300 52800 44300 53000 4
-C 44100 53000 1 0 0 5V-plus-1.sym
-C 44200 50400 1 0 0 gnd-1.sym
-N 44300 50700 44300 50800 4
-C 46300 48900 1 0 0 5V-plus-1.sym
-N 47100 45300 44600 45300 4
-{
-T 44600 45300 5 10 1 1 0 0 1
+T 45000 50700 5 10 1 1 0 0 1
 netname=DMX_TX
 }
-C 41300 43900 1 0 0 74HC4050.sym
+C 42300 39400 1 0 1 74HC4050.sym
 {
-T 42295 46795 5 10 0 0 0 0 1
+T 41305 42295 5 10 0 0 0 6 1
 device=74HC4050
-T 42295 46995 5 10 0 0 0 0 1
+T 41305 42495 5 10 0 0 0 6 1
 footprint=DIP16
-T 42095 43895 5 10 1 1 0 0 1
-refdes=U3
-T 42295 47393 5 10 0 0 0 0 1
-net=+5V:1
-}
-C 42700 40700 1 0 1 74HC4050.sym
-{
-T 41705 43595 5 10 0 0 0 6 1
-device=74HC4050
-T 41705 43795 5 10 0 0 0 6 1
-footprint=DIP16
-T 41905 40695 5 10 1 1 0 6 1
+T 41505 39395 5 10 1 1 0 6 1
 refdes=U4
-T 41705 44193 5 10 0 0 0 6 1
+T 41305 42893 5 10 0 0 0 6 1
 net=Vsim_ref:1
 }
-C 37100 42800 1 0 0 connector9-1.sym
+C 36200 42000 1 0 0 connector9-1.sym
 {
-T 37200 46300 5 10 0 0 0 0 1
+T 36300 45500 5 10 0 0 0 0 1
 device=CONNECTOR_9
-T 37200 45700 5 10 1 1 0 0 1
+T 36300 44900 5 10 1 1 0 0 1
 refdes=J2
-T 37100 42600 5 10 1 1 0 0 1
+T 36200 41800 5 10 1 1 0 0 1
 value=SIM300
-T 37100 42800 5 10 0 0 0 0 1
+T 36200 42000 5 10 0 0 0 0 1
 footprint=JUMPER9
 }
-C 38800 42600 1 0 0 gnd-1.sym
-N 38800 43000 38900 43000 4
-N 38900 43000 38900 42900 4
-C 38700 45500 1 0 0 generic-power.sym
+C 37900 41800 1 0 0 gnd-1.sym
+N 37900 42200 38000 42200 4
+N 38000 42200 38000 42100 4
+C 37800 44700 1 0 0 generic-power.sym
 {
-T 38900 45750 5 10 1 1 0 3 1
+T 38000 44950 5 10 1 1 0 3 1
 net=Vsim_ref:1
 }
-N 38900 45500 38900 45400 4
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-N 40900 45000 41300 45000 4
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-N 40100 43000 41300 43000 4
-N 40300 44500 40300 42600 4
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-N 40500 42200 41300 42200 4
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-N 44500 46200 42700 46200 4
-N 44100 45700 44100 43000 4
-N 44100 43000 42700 43000 4
-N 44300 45100 44300 42600 4
-N 44300 42600 42700 42600 4
-N 43900 44900 43900 45800 4
-N 43900 45800 42700 45800 4
-C 54200 40900 1 90 0 capacitor-1.sym
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+N 40000 43100 40000 40900 4
+N 40000 40900 40900 40900 4
+N 43700 41700 42300 41700 4
 {
-T 53500 41100 5 10 0 0 90 0 1
+T 42500 41700 5 10 1 1 0 0 1
+netname=MODEM_TXD
+}
+N 43700 41300 42300 41300 4
+{
+T 42500 41300 5 10 1 1 0 0 1
+netname=MODEM_RTS
+}
+C 54000 43300 1 90 0 capacitor-1.sym
+{
+T 53300 43500 5 10 0 0 90 0 1
 device=CAPACITOR
-T 53300 41100 5 10 0 0 90 0 1
+T 53100 43500 5 10 0 0 90 0 1
 symversion=0.1
-T 53900 41600 5 10 1 1 180 0 1
+T 53700 44000 5 10 1 1 180 0 1
 refdes=C6
-T 53400 41100 5 10 1 1 0 0 1
+T 53200 43500 5 10 1 1 0 0 1
 value=100 nF
-T 54200 40900 5 10 0 1 0 0 1
+T 54000 43300 5 10 0 1 0 0 1
 footprint=ACY100
 }
-C 53900 40500 1 0 0 gnd-1.sym
-N 54000 40900 54000 40800 4
-N 54000 41800 54000 42000 4
-C 53800 42000 1 0 0 5V-plus-1.sym
-C 54600 44100 1 0 0 5V-plus-1.sym
-C 54700 42300 1 0 0 gnd-1.sym
-N 54700 42700 55300 42700 4
-N 54800 42700 54800 42600 4
-N 54700 43300 54800 43300 4
-N 54800 43300 54800 44100 4
-C 58200 42300 1 0 1 connector5-1.sym
+C 53700 42900 1 0 0 gnd-1.sym
+N 53800 43300 53800 43200 4
+N 53800 44200 53800 44400 4
+C 53600 44400 1 0 0 5V-plus-1.sym
+C 54400 46500 1 0 0 5V-plus-1.sym
+C 54500 44700 1 0 0 gnd-1.sym
+N 54500 45100 55100 45100 4
+N 54600 45100 54600 45000 4
+N 54500 45700 54600 45700 4
+N 54600 45700 54600 46500 4
+C 58000 44700 1 0 1 connector5-1.sym
 {
-T 56400 43800 5 10 0 0 0 6 1
+T 56200 46200 5 10 0 0 0 6 1
 device=CONNECTOR_5
-T 58100 44000 5 10 1 1 0 6 1
+T 57900 46400 5 10 1 1 0 6 1
 refdes=CONN3
-T 57500 42100 5 10 1 1 0 0 1
+T 57300 44500 5 10 1 1 0 0 1
 value=DMX_OUT
-T 58200 42300 5 10 0 0 0 0 1
+T 58000 44700 5 10 0 0 0 0 1
 footprint=JUMPER5
 }
-N 56500 43700 55300 43700 4
-N 55300 43700 55300 42700 4
-N 54700 43100 55500 43100 4
-N 55500 43100 55500 43400 4
-N 55500 43400 56500 43400 4
+N 56300 46100 55100 46100 4
+N 55100 46100 55100 45100 4
+N 54500 45500 55300 45500 4
+N 55300 45500 55300 45800 4
+N 55300 45800 56300 45800 4
 {
-T 55700 43400 5 10 1 1 0 0 1
+T 55500 45800 5 10 1 1 0 0 1
 netname=DMX_D-
 }
-N 54700 42900 55700 42900 4
-N 55700 42900 55700 43100 4
-N 55700 43100 56500 43100 4
+N 54500 45300 55500 45300 4
+N 55500 45300 55500 45500 4
+N 55500 45500 56300 45500 4
 {
-T 55700 43100 5 10 1 1 0 0 1
+T 55500 45500 5 10 1 1 0 0 1
 netname=DMX_D+
 }
-N 53100 43100 52900 43100 4
-N 52900 42900 52900 44000 4
-N 52900 44000 54800 44000 4
-N 53100 42900 52900 42900 4
-N 53100 42700 51900 42700 4
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+N 52900 45300 52700 45300 4
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 {
-T 51900 42700 5 10 1 1 0 0 1
+T 51700 45100 5 10 1 1 0 0 1
 netname=DMX_TX
 }
-N 47100 45500 44600 45500 4
+N 47500 50900 45000 50900 4
 {
-T 44600 45500 5 10 1 1 0 0 1
+T 45000 50900 5 10 1 1 0 0 1
 netname=DBG_RX
 }
-C 46700 40800 1 0 0 connector3-1.sym
+C 44600 39800 1 0 0 connector3-1.sym
 {
-T 48500 41700 5 10 0 0 0 0 1
+T 46400 40700 5 10 0 0 0 0 1
 device=CONNECTOR_3
-T 46700 41900 5 10 1 1 0 0 1
+T 44600 40900 5 10 1 1 0 0 1
 refdes=CONN2
-T 46700 40600 5 10 1 1 0 0 1
+T 44600 39600 5 10 1 1 0 0 1
 value=DEBUG
-T 46700 40800 5 10 0 0 0 0 1
+T 44600 39800 5 10 0 0 0 0 1
 footprint=JUMPER3
 }
-C 48400 40600 1 0 0 gnd-1.sym
-N 48500 40900 48500 41000 4
-N 48500 41000 48400 41000 4
-N 48400 41300 49500 41300 4
+C 46300 39600 1 0 0 gnd-1.sym
+N 46400 39900 46400 40000 4
+N 46400 40000 46300 40000 4
+N 46300 40300 47400 40300 4
 {
-T 48700 41300 5 10 1 1 0 0 1
+T 46600 40300 5 10 1 1 0 0 1
 netname=DMX_TX
 }
-N 48400 41600 49500 41600 4
+N 46300 40600 47400 40600 4
 {
-T 48700 41600 5 10 1 1 0 0 1
+T 46600 40600 5 10 1 1 0 0 1
 netname=DBG_RX
 }
-T 48700 41100 9 10 1 0 0 0 1
+T 46600 40100 9 10 1 0 0 0 1
 DMX_TX is also DBG_TX
-C 47200 50800 1 0 0 connector2-1.sym
+C 37200 53300 1 0 0 connector2-1.sym
 {
-T 47400 51800 5 10 0 0 0 0 1
+T 37400 54300 5 10 0 0 0 0 1
 device=CONNECTOR_2
-T 47200 51600 5 10 1 1 0 0 1
+T 37200 54100 5 10 1 1 0 0 1
 refdes=CONN1
-T 47200 50600 5 10 1 1 0 0 1
+T 37200 53100 5 10 1 1 0 0 1
 value=POWER
-T 47200 50800 5 10 0 0 0 0 1
+T 37200 53300 5 10 0 0 0 0 1
 footprint=JUMPER2
 }
-C 49700 50200 1 0 0 gnd-1.sym
-C 49600 51600 1 270 0 capacitor-2.sym
+C 39700 52700 1 0 0 gnd-1.sym
+C 39600 54100 1 270 0 capacitor-2.sym
 {
-T 50300 51400 5 10 0 0 270 0 1
+T 40300 53900 5 10 0 0 270 0 1
 device=POLARIZED_CAPACITOR
-T 50100 51300 5 10 1 1 0 0 1
+T 40100 53800 5 10 1 1 0 0 1
 refdes=C5
-T 50500 51400 5 10 0 0 270 0 1
+T 40500 53900 5 10 0 0 270 0 1
 symversion=0.1
-T 50000 50900 5 10 1 1 0 0 1
+T 40000 53400 5 10 1 1 0 0 1
 value=10µF
-T 49600 51600 5 10 0 0 0 0 1
+T 39600 54100 5 10 0 0 0 0 1
 footprint=ACY100
 }
-N 48900 51000 49100 51000 4
-N 49100 51000 49100 50600 4
-N 49100 50600 49800 50600 4
-N 49800 50500 49800 50700 4
-C 49600 51800 1 0 0 5V-plus-1.sym
-N 49800 51600 49800 51800 4
-N 49800 51700 49100 51700 4
-N 49100 51700 49100 51300 4
-N 49100 51300 48900 51300 4
-C 35400 38900 1 0 0 title-A2.sym
+N 38900 53500 39100 53500 4
+N 39100 53500 39100 53100 4
+N 39100 53100 39800 53100 4
+N 39800 53000 39800 53200 4
+C 39600 54300 1 0 0 5V-plus-1.sym
+N 39800 54100 39800 54300 4
+N 39800 54200 39100 54200 4
+N 39100 54200 39100 53800 4
+N 39100 53800 38900 53800 4
+C 35400 38900 0 0 0 title-A2.sym
 T 51700 39300 9 10 1 0 0 0 1
 avr_board
 T 51700 39000 9 10 1 0 0 0 1
@@ -431,3 +413,131 @@ T 55500 39300 9 10 1 0 0 0 1
 T 56500 39000 9 10 1 0 0 0 2
 Matthias Blankertz 
 <matthias@blankertz.org>
+C 40500 46000 1 0 0 74HCT125-1.sym
+{
+T 42600 47540 5 10 0 0 0 0 1
+device=74HCT125
+T 42600 47340 5 10 0 0 0 0 1
+footprint=DIP14
+T 42200 47000 5 10 1 1 0 6 1
+refdes=U3
+}
+N 42500 46600 43700 46600 4
+{
+T 42500 46600 5 10 1 1 0 0 1
+netname=MODEM_RXD
+}
+C 40500 44800 1 0 0 74HCT125-1.sym
+{
+T 42600 46340 5 10 0 0 0 0 1
+device=74HCT125
+T 42600 46140 5 10 0 0 0 0 1
+footprint=DIP14
+T 42200 45800 5 10 1 1 0 6 1
+refdes=U5
+}
+N 39200 45400 40500 45400 4
+N 42500 45400 43700 45400 4
+{
+T 42500 45400 5 10 1 1 0 0 1
+netname=MODEM_CTS
+}
+C 40500 43600 1 0 0 74HCT125-1.sym
+{
+T 42600 45140 5 10 0 0 0 0 1
+device=74HCT125
+T 42600 44940 5 10 0 0 0 0 1
+footprint=DIP14
+T 42200 44600 5 10 1 1 0 6 1
+refdes=U6
+}
+N 40500 44200 39400 44200 4
+N 42500 44200 43700 44200 4
+{
+T 42500 44200 5 10 1 1 0 0 1
+netname=MODEM_DCD
+}
+C 40500 42400 1 0 0 74HCT125-1.sym
+{
+T 42600 43940 5 10 0 0 0 0 1
+device=74HCT125
+T 42600 43740 5 10 0 0 0 0 1
+footprint=DIP14
+T 42200 43400 5 10 1 1 0 6 1
+refdes=U7
+}
+N 40200 42500 40200 43000 4
+N 40200 43000 40500 43000 4
+N 42500 43000 43700 43000 4
+{
+T 42700 43000 5 10 1 1 0 0 1
+netname=MODEM_RI
+}
+N 40500 42600 40400 42600 4
+N 40400 42400 40400 46200 4
+N 40500 46200 40400 46200 4
+N 40500 45000 40400 45000 4
+N 40500 43800 40400 43800 4
+C 40300 42100 1 0 0 gnd-1.sym
+N 42300 40900 43700 40900 4
+{
+T 42500 40900 5 10 1 1 0 0 1
+netname=MODEM_DTR
+}
+N 37400 49900 36200 49900 4
+B 36000 52000 5000 3000 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 36000 54800 9 10 1 0 0 0 1
+Power
+B 36000 48300 7100 3500 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 36000 51600 9 10 1 0 0 0 1
+Reset & ISP
+B 44000 47600 9200 7400 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 44000 54800 9 10 1 0 0 0 1
+MCU
+B 36000 39300 7900 8600 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 36000 47700 9 10 1 0 0 0 1
+Modem interface w/ level shifters
+B 51500 42700 6800 4400 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 51500 46900 9 10 1 0 0 0 1
+DMX Output
+B 44400 39300 4500 2100 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 44400 41200 9 10 1 0 0 0 1
+Serial Debug
+C 36900 45900 1 90 0 capacitor-1.sym
+{
+T 36200 46100 5 10 0 0 90 0 1
+device=CAPACITOR
+T 36000 46100 5 10 0 0 90 0 1
+symversion=0.1
+T 36900 45900 5 10 0 1 0 0 1
+footprint=ACY100
+T 36600 46600 5 10 1 1 180 0 1
+refdes=C7
+T 36100 46100 5 10 1 1 0 0 1
+value=100 nF
+}
+C 36600 45500 1 0 0 gnd-1.sym
+N 36700 45900 36700 45800 4
+N 36700 46800 36700 47000 4
+C 36500 47000 1 0 0 5V-plus-1.sym
+C 37800 45900 1 90 0 capacitor-1.sym
+{
+T 37100 46100 5 10 0 0 90 0 1
+device=CAPACITOR
+T 36900 46100 5 10 0 0 90 0 1
+symversion=0.1
+T 37800 45900 5 10 0 1 0 0 1
+footprint=ACY100
+T 37500 46600 5 10 1 1 180 0 1
+refdes=C8
+T 37000 46100 5 10 1 1 0 0 1
+value=100 nF
+}
+C 37500 45500 1 0 0 gnd-1.sym
+N 37600 45900 37600 45800 4
+N 37600 46800 37600 47000 4
+C 37400 47000 1 0 0 generic-power.sym
+{
+T 37600 47250 5 10 1 1 0 3 1
+net=Vsim_ref:1
+}
diff --git a/schem/syms/74HCT125-1.sym b/schem/syms/74HCT125-1.sym
new file mode 100644
index 0000000..81ea601
--- /dev/null
+++ b/schem/syms/74HCT125-1.sym
@@ -0,0 +1,60 @@
+v 20130925 2
+P 0 600 300 600 1 0 0
+{
+T 200 650 5 8 1 1 0 6 1
+pinnumber=2
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+pinseq=1
+T 350 600 9 8 1 1 0 0 1
+pinlabel=A
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+pintype=in
+}
+P 2000 600 1700 600 1 0 0
+{
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+pinnumber=3
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+pinseq=2
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+pinlabel=Y
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+pintype=tri
+}
+P 0 200 200 200 1 0 0
+{
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+pinnumber=1
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+pinseq=3
+T 350 200 9 8 1 1 0 0 1
+pinlabel=\_EN\_
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+pintype=in
+}
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+device=74HCT125
+T 2100 1340 5 10 0 0 0 0 1
+footprint=DIP14
+T 2100 1140 5 10 0 0 0 0 1
+numslots=4
+T 2100 940 5 10 0 0 0 0 1
+slotdef=1:2,3,1
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+slotdef=2:5,6,4
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+slotdef=3:9,8,10
+T 2100 340 5 10 0 0 0 0 1
+slotdef=4:12,11,13
+T 1700 1000 8 10 1 1 0 6 1
+refdes=U?
+T 2100 1750 5 10 0 0 0 0 1
+description=4 busline drivers
+T 2100 1950 5 10 0 0 0 0 1
+net=+5V:14
+T 2100 2150 5 10 0 0 0 0 1
+net=GND:7
+T 300 940 9 10 1 0 0 0 1
+74HCT125