TOHO ELECTRONICS TTM-00BT - Manual (Page 29)

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7.9.13 Table of ASCII codes
ASCII code 02H 03H 06H 15H
Code used STX ETX ACK NAK
ASCII code 30H 31H 32H 33H 34H 35H 36H 37H 38H 39H
Number used 0 1 2 3 4 5 6 7 8 9
2DH 20H
−
Minus
SP
Space
ASCII code 41H 42H 43H 44H 45H 46H 47H 48H 49H 4AH
Code used A B C D E F G H I J
ASCII code 4BH 4CH 4DH 4EH 4FH 50H 51H 52H 53H 54H
Alphabetical
character used
K L M N O P Q R S T
55H 56H 57H 58H 59H 5AH 20H 72H 77H
Y V W X Y Z
SP
Space
w
Lower case
r
Lower case
7.9.14 Communications specifications
1) Communications standard category: Compliant with EIA standard RS-232C or RS-485
2) Communications systems
: Network.................................. For RS-485: up to 1 pair, 16 stations
For RS-232C: 1 pair, 1 station
: Direction of information......... Half duplex
: Synchronization system.......... Asynchronous
: Transmission code .................. ASCII code
3) Interface system
: Signal line............................... For RS-485: Two-wire type (two transmission and
reception lines)
For RS-232C: Three-wire type (two transmission and
reception lines, one SG line)
: Communications speed .......... 4,800, 9600, 19,200 and 38,400 bps
Set this with DIP switches.
: Communications distance ...... For RS-485: 500 mm maximum
For RS-232C: 15 m maximum
Provided that it varies somewhat depending on the cable and other ambient conditions.