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13. OP-03 RS-232C SERIAL INTERFACE
This interface allows the HC-i series to be connected with a multifunction printer or a
personal computer.
The OP-03 unit includes an interface board, a connector plug (DIN type) and two
screws. (M3x6 tapping type).
13-1. Installation
1. Disconnect the AC adapter from the scale. If the battery is used, switch off the
scale.
2. Loosen the screw and remove the panel covering the option slot.
3. Connect the connector cable on the OP-03 to the connector inside the option slot.
4. Fix the OP-03 unit using the two screws included in the OP-03.
13-2. RS-232C Specifications
Transmission form Asynchronous, bi-directional, half-duplex
Data format Baud rate: 2400, 4800, 9600 bps
Data: 7 bits + parity 1bit (even / odd) or 8 bits (non-parity)
Start bit: 1 bit
Stop bit: 1 bit
Code: ASCII
Terminator: Data Send / C
R
L
F
Data Receive / C
R
or C
R
L
F
LSB
012345
MSB
6
Pin connections
2 Receive data
3 Transmit data
5 Signal ground
7 Data set ready
1, 4, 6 and 8 N.C.
O
p
tion slot
Screw
Interface
Sc
r
e
w
s
Stop b
i
t
1 (-15V~-5V)
0 (5V~15V)
Start bit Data bit Parity bit
Inside of the HC-
i
(View from outside)
Mating connector: JA+TCP0586
(Included in the OP-03)