Bio-Rad Model 680 Microplate Reader Accessories - Manual (Page 51)

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7.2 Interface Specifications
The following specification describes the syntax and language required for computer control of the reader.
1. SIGNALS
TXD:
transmit data
RXD: receive data
DTR: data terminal ready
DSR: data set ready
CTS: clear to send
RTS: request to send
2. TRANSMISSON
Baud rate: 9600
Data width: 8
Stop width: 1
Parity :
None
3. DATA
All data must be transmitted in ASCII.
The READER command interpreter must be “case blind” (no distinction between upper or lower case
ASCII characters).
The first two characters of the command can distinguish all READER commands from each other.
4. SIGNAL ASSIGNMENT
8
7
6
5
4
3
2
7
8
4
5
6
2
3
Model 680
DSUB 9pin
TXD
RXD
DSR
Signal ground
DTR
CTS
RTS Host computer
DSUB 9pin
RXD
TXD
DTR
Signal ground
DSR
RTS
CTS