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10.3 Interface Specifications
(1) Transmission system
Serial transmission with start-stop synchronization
(2) Transmission rates
1200/2400/4800/9600 bps.
(3) Transmission codes
ASCII codes (8-bit)
(4) Signal levels
Compliant with EIA RS-232C
HIGH level (Data logic 0)
+5 to +15 V
LOW level (Data logic 1)
-5 to -15 V
(5) One-character bit configuration Start bit:
1 bit
Data bit:
8 bits
Parity bit: 0/1 bits
Stop bit:
2 bits
(6) Parity bit:
none/odd/even
LSB
MSB
1
2
3
4
5
6
7
8
9
10
11
12
Logic
“1”
Logic
“0”
Data bit
Start bit
Parity bit
(may be omitted)
Stop bit
Summary of Contents for GAI2200
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