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Serial Port 1 (SER1 Connector)
Table 6: (SER1) Connector Pinout for Basic Configuration
Connector type: D-type 9-pin Male.
Pin
Signal
Type
1
SER1_IN1
(DSR)
2
RXD
(COM1)
3
TXD (COM1)
4
RTS (COM1)
5
GND
6
CTS (COM1)
7
SER1_OUT2
(DTR)
8
+VIN
9
SER1_IN3
(RI)
Function
Typical Min Max
I
Control
Input/
Input Low: V
Counter
30V 6V
Input High: V
24V
Frequency: Up to
1KHz
I
Receive
EIA-RS232 level
Data
O
Transmit
EIA-RS232 level
Data
O
Request To
EIA-RS232 level
Send
G
MDT Power Supply
Ground
I
Clear To
EIA-RS232 level
Send
O
Control
Open Collector
Output
Max. switchable
current = 300mA
Max. switchable
voltage = +V
Max. saturation
voltage = 0.6V
V
MDT Power
Typical Min Max
Supply
+12V-24V
Voltage
I
Control
Typical Min Max
Input/
Input Low: V
Counter
30V 6V
Input High: V
24V
Frequency: Up to
1KHz
Specifications
0V -
IL
12V-
IH
8V +30V
+
IN
8V +30V
+
0V -
IL
12V-
IH
8V +30V
+
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