102
MULTIPORT SPOOLER VIII (4-, 8-, and 12-Port Models)
A.2.6 X-ON/X-OFF H
ANDSHAKE
3-W
IRE
DB25 (EYN251)
Computer (DTE) Female DB25
MPS-VIII (DTE)
Printer (DTE) Male DB25
Female DB25
TXD
23
RXD
RXD
32
TXD
RTS
4
CTS
5
GND
77
GND
DSR
6
DTR
20
A.2.7 X-ON/X-OFF H
ANDSHAKE
3-W
IRE FOR
AT (9-P
IN
) (Q
UOTE
)
Computer (DTE)
MPS-VIII (DTE)
Female DB9
Female DB25
TXD
33
RXD
RXD
22
TXD
RTS
7
CTS
8
GND
57
GND
DSR
6
DTR
4
A.2.8 M
ODEM
7-
OR
8-W
IRE
(ECN25C)
Modem (DCE)
MPS-VIII (DTE)
Male DB25
Female DB25
TXD
22
RXD
RXD
33
TXD
RTS
44
RTS
CTS
55
CTS
(optional) DSR
66
DSR (optional)
GND
77
GND
DCD
88
DCD
DTR
2020
DTR
If a modem is connected to the MPS-VIII, see the notes for the DTR/CTS
Handshake diagram on page 100.
Summary of Contents for PI750A
Page 119: ...111 APPENDIX A Cable Pinouts IBM AT to MPS VIII DB9M to DB25M...
Page 173: ...NOTES...