Star TSP400 Installation Manual page 34

[RS-422A]
Printer #n
RD
SD
Printer #n+1
RD
SD
Signal Name
DATA 1
DATA 8
STROBE
BUSY
ACK
Printer side
Twisted pair cable
17
18
9
10
17
18
9
10
Ω
4.7k
1kΩ
1.8kΩ
– 31 –
Host side
Sample Circuit
74LS-equivalent
74LS-equivalent
100Ω
1000pF
74LS-equivalent
SD
RD