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Reference Information
9-Pin D-Sub Connector Common Pinouts
Pin
DB9 (F)
DB9M (M)
DB9A
and DB9K
DB9R
DB9T
DB9U
DB9B
DB9G
DB9H
DB9I
DB9N
1
Current Out
NC
TX or B
TX or B
RX or A
Analog Out 2 RX or A
TX or B
NC
Power In
2
Analog Out 2 Analog Out
Analog Out
Analog Out
Analog Out Analog Out
Analog Out Analog Out
Analog Out Analog In
3
RX or A
Power In
Analog In
Power In
Power In
Power In
Ground
Analog In
Power In
Analog Out
4
Analog In
Ground
Ground
Ground
Ground
Ground
Power In
RX or A
Ground
NC
5
TX or B
TX or B
NC
NC
NC
Ground
Ground
Analog Out 2 NC
Ground
6
Analog Out
Analog In
RX or A
Analog In
Analog In
Analog In
TX or B
NC
Analog In
Ground
7
Power In
Ground
Power In
Ground
Ground
Ground
Analog In
Power In
Ground
RX or A
8
Ground
Ground
Ground
Ground
Ground
TX or B
Current Out Ground
RX or A
TX or B
9
Ground
RX or A
Ground
RX or A
TX or B
RX or A
Ground
Ground
TX or B
NC5
15-Pin D-Sub Connector Common Pinouts
Pin DB15
DB15A
DB15B
DB15H
DB15K
DB15O
DB15S
1
Ground
Ground
Ground
NC
NC
Ground
Ground
2
Analog Out
Analog Out
Analog Out
RX or A
Analog Out
NC
Analog Out
3
Ground
Analog In
NC
NC
NC
NC
NC
4
NC
Ground
NC
NC
NC
Analog Out
NC
5
Power In
Ground
Power In
Ground
Ground
Power In
Ground
6
NC
Ground
NC
Analog Out
NC
NC
NC
7
NC
Power In
NC
Ground
Power In
Analog In
NC
8
Analog In
TX or B
Analog In
NC
Analog In
NC5
Analog In
9
Ground
Ground
Ground
NC
Analog Out 2
Ground
Ground
10
Ground
NC
Ground
Analog Out 2
NC
Ground
Ground
11
Analog Out 2
NC
Analog Out 2
Power In
Ground
Analog Out 2
Analog Out 2
12
NC
Analog Out 2
NC
Ground
Ground
NC
RX or A
13
RX or A
NC
NC
NC
RX or A
NC
Power In
14
Ground
NC
RX or A
Analog In
TX or B
RX or A
TX or B
15
TX or B
RX or A
TX or B
TX or B
Ground
TX or B
Ground
Key of Terms:
Analog In
Remote tare (ground to tare)
Analog Out
0–5 Vdc output signal
(1–5, 0–10 Vdc optional)
Analog Out 2
5.12 Vdc or optional secondary
analog output
Current Out
Not connected
NC
Not connected
Power In
(+Vdc)
RX or A
Serial RS-232RX or RS-485 A
TX or B
Serial RS-232TX or RS-485 B
Ground
Common for power, digital
communications, analog signals, alarms
Female Connector
Male Connector
1
6
9
5
5
9
6
1
1
8
15
9
8
1
9
15
Female Connector: Cable
Male Connector: Device
