20
PC-905 Counting Scale User Instructions
Serial Communications
The functional pinout is as follows:
The scale has a remote base option. If this is installed, the connector will
show up in the position shown in Figure
4.1
. If the remote base is analog the
connector will be a DB-9 male. If the remote base is digital (QDT), the
connector will be DB-9 female. The pinouts for each are shown in the table
below.
DB-9F Scale Serial I/O Connector
Pin Signal
Description
1
Reserved
2
TXD
3
RXD
4
Reserved
5
SIG GND
6
Reserved
7
Reserved
8
Reserved
9
+5V
DB-9M Remote Analog Base Input
DB-9F Remote Digital Base Input
Pin
Analog Signal Desc
Pin
Digital Signal Desc
1
- SIGNAL
1
+7.5 VDC
2
+ SIGNAL
2
REC B
3
+ EXCITATION
3
XMT B
4
- EXCITATION
4
N/C
5
+ SENSE
5
SIG GND
6
N/C
6
N/C
7
N/C
7
XMT A
8
- SENSE
8
REC A
9
SHIELD
9
N/C
Summary of Contents for PC-905
Page 1: ...PC 905 Counting Scale PC 905 User Instructions ENGLISH 43002 0016 Issue AB June 2008...
Page 4: ...4 PC 905 Counting Scale User Instructions...
Page 27: ...PC 905 Counting Scale User Instructions 27 4 2 Preset Print Formats Status Bytes...
Page 34: ...34 PC 905 Counting Scale User Instructions Specifications...
Page 35: ......
