9-Pin Serial Port Connector Pinout (DTE) |
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Pin |
I/O |
Name |
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1 |
I |
Data Carrier Detect |
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2 |
I |
Receive Data |
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3 |
O |
Transmit Data |
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4 |
O |
Data Terminal Ready |
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5 |
NA |
Ground |
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6 |
I |
Data Set Ready |
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7 |
O |
Request To Send |
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8 |
I |
Clear To Send |
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9 |
I |
Ring Indicator |
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25-Pin Serial Port Connector Pinout (DTE) |
25-Pin Parallel Port Connector Pinout (DTE) |
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Pin |
I/O |
Name |
Pin |
I/O |
Name |
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1 |
NA |
Chassis ground |
1 |
I/O |
-Strobe |
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2 |
O |
Transmit Data |
2 |
I/O |
+Data bit 0 |
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3 |
I |
Receive Data |
3 |
I/O |
+Data bit 1 |
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4 |
O |
Request To Send |
4 |
I/O |
+Data bit 2 |
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5 |
I |
Clear To Send |
5 |
I/O |
+Data bit 3 |
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6 |
I |
Data Set Ready |
6 |
I/O |
+Data bit 4 |
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7 |
NA |
Signal ground |
7 |
I/O |
+Data bit 5 |
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8 |
I |
Data Carrier Detector |
8 |
I/O |
+Data bit 6 |
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9 |
NC |
Not Connected |
9 |
I/O |
+Data bit 7 |
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10 |
NC |
Not Connected |
10 |
I |
-Acknowledge |
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11 |
NC |
Not Connected |
11 |
I |
+Busy |
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12 |
NC |
Not Connected |
12 |
I |
+P end (out of paper) |
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13 |
NC |
Not Connected |
13 |
I |
-Select |
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14 |
NC |
Not Connected |
14 |
O |
-Auto feed |
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15 |
NC |
Not Connected |
15 |
I |
-Error |
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16 |
NC |
Not Connected |
16 |
O |
-Initialize Printer |
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17 |
NC |
Not Connected |
17 |
O |
-Select Input |
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18 |
NC |
Not Connected |
18 |
NA |
Ground |
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19 |
NC |
Not Connected |
19 |
NA |
Ground |
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20 |
O |
Data Terminal Ready |
20 |
NA |
Ground |
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21 |
NC |
Not Connected |
21 |
NA |
Ground |
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22 |
I |
Ring Indicate |
22 |
NA |
Ground |
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23 |
NC |
Not Connected |
23 |
NA |
Ground |
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24 |
NC |
Not Connected |
24 |
NA |
Ground |
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25 |
NC |
Not Connected |
25 |
NA |
Ground |
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Keyboard |
Mouse |
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Pin |
Keyboard Signal |
Pin |
Mouse Signal |
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1 |
KDATA |
1 |
MDATA |
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2 |
Reserved |
2 |
Reserved |
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3 |
Ground |
3 |
Ground |
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4 |
+5.0 VDC |
4 |
+5.0 VDC |
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5 |
KCLK |
5 |
MCLK |
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6 |
Reserved |
6 |
Reserved |
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DTE = Data Terminal Equipment |
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DCE = Data Communication Equipment (Pasangan dari DTE) |
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Kalau DTE adalah TX (OUT), maka DCE adalah RX (IN) |