Toshiba Strata DK24 Installation And Maintenance Manual page 216

TOSHIBA LAPTOP OR IBM AT-TYPE
PERSONAL COMPUTER (DTE)
PIN DESIGNATIONS
COM PORT
PIN # 1 2
NAME DCD RD
Rear view of asynchronous (serial)
communication interface connector (DB9) of
Toshiba laptop or IBM AT personal computer
DB9
MALE
CONNECTOR
NOTES:
1. Some RS-232 EIA leads may be called by other names by some manufacturers.
2. The computer receives data on Pin 2 (RD) and sends data on Pin 3 (TD).
FIGURE 8-29
PDIU-DI TO IBM AT-TYPE COMPUTER RS-232 CONNECTOR/CABLE CONNECTIONS
3 4 5 6 7 8
TD DTR SG DSR RTS CTS
1 2 3 4 5
FEMALE
6 7 8 9
CONNECTOR
6 7 8 9
MALE
1 2 3 4 5
CONNECTOR
DB9
FEMALE
CONNECTOR
DB9
PIN #
1
2
3
4
5
6
7
8
9
INSTALLATION-PERIPHERALS
(FUNCTIONS LIKE A DCE)
PIN DESIGNATIONS
PDIU-DI
9 1 2 3 4
PIN #
FG TD RD RTS
RI NAME
Rear view of PDIU-DI DB25,
RS-232 female connector
DB25
22
22
DB25
DB25
NAME PIN #
DCD 8
RD 3
TD 2
DTR 20
SG 7
IBM PC AT modem style (serial)
DB25 to DB9, RS-232 cable.
DSR 6
Pin to pin connections are
confiqured as a straight cable,
RTS 4
not as a null modem cable
(50 ft max, 24AWG;
CTS 5
customer-supplied).
RI 22
8-45
SECTION 400-096-208
SEPTEMBER 1992
PDIU-DI
5 6 7 8 20 22
CTS DSR SG DTR RI
DCD
8 7 6 5 4 3 2 1
20
20
8 7 6 5 4 3 2 1