
Network Design
and Setup
3–19
Network Design and Setup
Slaves: DL305 RS422 DCU
RS232C
2 RXD
3
5
1
6
TXD
GND
DCD
DSR
3 RXD
2
7
20
TXD
GND
DTR
Master
FA–UNICON
Converter for Slave
4 DTR 25 +5V
7RTS
8 CTS
9-pin
Connector
Male connector plugs onto DCU
A
B
DL305
w/DCU
A
B
9-pin Connector 25-pin Connector
2 TXD
3
7
4
RXD
GND
RTS
5 CTS
25-pin
DTE Con-
nector
6 DSR
8 DCD
20 DTR
2 TXD
3 RXD
7 GND
20 DTR
25 +5
25-pin DCE
Connector
25-pin DCE
Connector
DL305
w/DCU
RS232C
Master
FA–UNICON
Converter for Slave
A
B
DL305
w/DCU
Pin labeling conforms to the IBM DTE and DCE standards.
Host as Master
(continued)
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