B-2. Interface Connections (Serial Interface) - Star SP2000 serie Bedienungsanleitung

Pin No.
20
21 - 24
25
Note: DIP switch 2 displays the switches on the interface card.

B-2. Interface Connections (Serial Interface)

Refer to the interface specifications of the host for details on connecting to its
interface connector. The following illustration shows a typical connection
configuration.
F-GND
TXD
RXD
RTS
DSR
S-GND
DTR
INIT
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Signal Name Direction
DTR OUT
N.C.
INIT IN
13
25
Printer side
(D-sub 25 pin)
1
2
3
4
6
7
20
25
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X-On/X-Off Communication Mode
Always space, except during following conditions:
• Period between reset and communication enabled
• During self printing and dot alignment adjustment
Not connected
• DIP Switch 2-8 = OFF
This signal not used.
• DIP Switch 2-8 = ON
This signal becomes reset signal. Printer is reset whenever
signal is in space state with pulse width of 1mS or more.
25 pin
1
2
3
4
5
6
7
8
20
– 156 –
Function
1
14
IBM PC side
9 pin
F-GND
3 TXD
2 RXD
7 RTS
8 CTS
DSR
6
5 S-GND
1 DCD
4 DTR