UBI EasyCoder 501 Service Manual page 137

UBI EasyCoder 501 – Service Manual
18. "UART1:", cont'd.
18.2
RS 232C (V24), cont'd.
Printer ⇒ IBM-XT/IBM-PS2
Art.No. 1-975580-05
Length: 3 metres (9.8 ft.)
/. If the communication cable is not
1
configured to transmit any CTS signal to
the printer, a permanent CTS signal will
automatically be produced.
Printer ⇒ IBM-AT
Art.No. 1-975581-05
Length: 3 metres (9.8 ft.)
/. If the communication cable is not
1
configured to transmit any CTS signal to
the printer, a permanent CTS signal will
automatically be produced.
Cable configuration:
The following ready-made RS 232C connection cables can be
ordered from UBI. Cables procured from other sources should
follow the same wiring principles.
Note:
Be careful not to connect the external +5V unintentionally, which
may harm your computer or terminal.
To Printer ("uart1:")
DB25 female connector
Housing •
Cable shield 1 •
TXD out 2 •
RXD in 3 •
RTS out 4 •
CTS in 5 •
1
DSR in 6 •
Signal GND 7 •
not used 8-15 •
(+5V) 16 •
not used 17-19 •
DTR out 20 •
not used 21-25 •
To Printer ("uart1:")
DB25 female connector
Housing •
Cable shield 1 •
TXD out 2 •
RXD in 3 •
RTS out 4 •
CTS in 5 •
1
DSR in 6 •
Signal GND 7 •
not used 8-15 •
(+5V) 16 •
not used 17-19 •
DTR out 20 •
not used 21-25 •
To IBM-XT & PS/2
⇐ cable ⇒
DB25 female connector
• Housing
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8-25
To IBM-AT
⇐ cable ⇒
DB9 female connector
• Housing
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
Cable shield
TXD out
RXD in
RTS out
CTS in
DSR in
Signal GND
not used
not used
RXD in
TXD out
not used
Signal GND
DSR in
RTS out
CTS in
not used
137