Communications - NCI 7620 Family User Manual

Communications

Interface Cable
* Jmp1 and Jmp2 pins
are connected
internally on the scale
PCB connector.
Communications
The NCI 7600 family scales come factory config-
ured as a serial RS-232 interface device. There
is one 9-pin DE type female connector accessible
at the rear of the unit. The functional pinout of
this connector is compatible with a standard PC
pass-through cable.
DE-9 Female Scale
Pin Name Direction Pin Name Direction
1.
2.
3.
4.
5.
6.
7.
8.
9.
The scale uses a DE-9 connector.
This standard is used by all NCI bench scale
products.
NCI STD
Symbol key:
<ETX>
Protocol
<LF>
<CR>
<SP>
x
hhh
uu
Model 7600 Family PWC User's Manual
JMP 1 -
TXD OUT
RXD IN
JMP 1 -
SGND -
JMP 1 -
JMP 2 -
JMP 2 -
NC -
End of Text character (03
hexadecimal).
Line Feed character (0A hex).
Carriage Return character (0D hex).
Space (20 hex).
Character from display including
minus sign.
Three status bytes.
Unit of measure using ANSI standard
abbreviations
DE-9 Male Host
1. DCD
2. RXD
3. TXD OUT
4. DTR OUT
5. GND
6. DSR
7. RTS OUT
8. CTS
9. RI
31
IN
IN
-
IN
IN
IN