Etx-oh / etx® connectors – Kontron ETX-OH User Manual
Page 42
ETX-OH / ETX® Connectors
65
GND
Ground
PWR
-
-
66
GND
Ground
PWR
-
-
67
RTS2#
Request to Send COM2
O-3,3
PU 100k 3,3V -
68
PD5
LPT Data Bus D5
IO-3,3 -
-
69
DTR2#
Data Terminal Ready COM2
O-3,3
PU 100k 3,3V -
70
SLIN# / STEP#
LPT Select / Floppy Motor Step
O-3,3
-
-
71
DCD2#
Data Carrier Detect COM2
I-3,3
PU 4k7 5V
-
72
PD4 / DSKCHG# LPT Data Bus D4 / Floppy Disk Change
IO-3,3 -
-
73
DSR2#
Data Set Ready COM2
I-3,3
PU 4k7 5V
-
74
PD3 / RDATA#
LPT Data Bus D3 / Floppy Raw Data Read
IO-3,3 -
-
75
CTS2#
Clear to Send COM2
I-3,3
PU 4k7 5V
-
76
PD2 / WP#
LPT Data Bus D2 / Floppy Write Protect Signal IO-3,3 -
-
77
TXD2
Data Transmit COM2
O-3,3
-
Bootstrap PU 1k 3,3V
78
PD1 / TRK0#
LPT Data Bus D1 / Floppy Track Signal
IO-3,3 -
-
79
RI2#
Ring Indicator COM2
I-3,3
PU 4k7 5V
-
80
PD0 / INDEX#
LPT Data Bus D0 / Floppy Index Signal
IO-3,3 -
-
81
VCC
Power +5V
PWR
-
-
82
VCC
Power +5V
PWR
-
-
83
RXD1
Data Receive COM1
I-3,3
PU 100k 3,3V 5V tolerant
84
ACK# / DRV
LPT Acknowledge / Floppy Drive Select
IO-3,3 -
-
85
RTS1#
Request to Send COM1
O-3,3
-
Bootstrap PU 1k 3,3V
86
BUSY / MOT
LPT Busy / Floppy Motor Select
IO-3,3 -
-
87
DTR1#
Data Terminal Ready COM1
O-3,3
-
Bootstrap PU 1k 3,3V
88
PE / WDATA#
LPT Paper Empty / Floppy Raw Write Data
IO-3,3 -
-
89
DCD1#
Data Carrier Detect COM1
I-3,3
PU 100k 3,3V -
90
SLCT#/WGATE#
LPT Power On / Floppy Write Enable
IO-3,3 -
-
91
DSR1#
Data Set Ready COM1
I-3,3
PU 100k 3,3V -
92
MSCLK
Mouse Clock
I-3,3
PU 4k7 3,3V
-
93
CTS1#
Clear to Send COM1
I-3,3
PU 100k 3,3V -
94
MSDAT
Mouse Data
I-3,3
PU 4k7 3,3V
-
95
TXD1
Data Transmit COM1
O-3,3
-
Bootstrap PU 1k 3,3V
96
KBCLK
Keyboard Clock
I-3,3
PU 4k7 3,3V
-
97
RI1#
Ring Indicator COM1
I-3,3
PU 100k 3,3V -
98
KBDAT
Keyboard Data
I-3,3
PU 4k7 3,3V
-
99
GND
Ground
PWR
-
-
100 GND
Ground
PWR
-
-
The termination resistors in this table are already mounted on the ETX® board. Please refer
to the design guide for information about additional termination resistors.
LPC,Mouse, Keyboard and COM signals are 5V tolerant.
42