Fairbanks 26889 Slimline Health Scale - Manual (Page 12)

04/09 12 51142 Revision 2
Appendix I: Data Output Specifications
INTRODUCTION
The single RS232-C Output Port is designed for interface with the customer’s data
processing equipment.
SPECIFICATIONS
• RS232-C compatible Data Signal
• Seven (7) Data Bits
• Odd
Parity
• 9600 Baud Rate (+0.1%)
• Two Stop Bits
• US-ASCII
Character Set
• Mark = -3 to -15V
• Space = + 3 to +15V
• Maximum distance of 50 cable-feet
• Connector (at end of the attached cable)
• DB9 Female for connection to a PC Serial Port
CHARACTER FRAME
Characters are transmitted in an ASCII format at 9600 Baud (+ 0.1%).
• The receiver must be capable of a tolerance of 9600 (+/- 2.5%) Baud to allow for
line losses and frequency skew.
• Character frames consist of one start bit, 7-bit character length, odd parity bit and
two stop bits.
3 to 15 VDC
ON State (Spacing)
Logic State
-3 to -15 VDC
OFF State (Marking)
S
T
A
R
T
B
I
T
0
ON OFF OFF
D
0
L
S
B
D
1
D
2
D
3
D
4
D
5
D
6
P
A
R
I
T
Y
B
I
T
S
T
O
P
B
I
T
0
S
T
O
P
B
I
T
0
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