15
RS232 DTE connector pin-out:
N°
Function
1
CD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
-
Video input connector (HDMI 1.4)
Jack 3.5 mm connector (GPIO1/IR)
N°
Name
Write/Read
Control
1
Voltage reference 3.3 V
2
GPIO1
IN or OUT
CPU/GPIO1
3
Ground
Electrical features
Vin min
Vin max
VOH min
VOL max
VIH min
VIL max
GPIO1
-0.5 V
3.6 V
2.9 V
0.4 V
2.0 V
0.8 V
The 3.3 V pin must not be used as power supply, but rather as a reference voltage.
Along the device booting, the GPIO1 is configured as input during some seconds. And then after the system startup, the GPIO1 is operational.
The GPIO has a weak pull-up.
It is not recommended to hotplug/unplug the GPIO1 connector, which could damage the device.
Summary of Contents for DMB400
Page 1: ...User manual DMB400 4 14 14 002D...
Page 4: ...4 Part I Description and installation...
Page 7: ...7 1 2 1 Device xture...
Page 8: ...8 1 2 2 Device dimensions...
Page 18: ...18 Part II Applicative user interface...
Page 20: ...20 Part III Administration console user interface...
Page 48: ...48 Part IV Con guration by script...
Page 50: ...50 Part V Technical information...
Page 54: ...54 Part VI Contacts...
Page 56: ...56 Part VII Appendix...