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INSTALLATION-PERIPHERALS
SECTION 100-816-207
MARCH 1993
7-45
FIGURE 7-28
DK8 AND DK16 PDIU-DS TO HAYES-TYPE SMART MODEM, RS-232 CONNECTOR/CABLE CONNECTIONS
DB25
PIN #
8
3
2
20
7
6
4
5
22
1
NAME
DCD
RD
TD
DTR
SG
DSR
RTS
CTS
RI
FG
DB25
PIN #
8
3
2
20
7
6
4
5
22
1
123456785
2022
12345678
2022
Rear view of modem DB25 connector
Rear view of PDIU-DS DB25, connector
HAYES-TYPE SMART MODEM
(FUNCTIONS LIKE A DCE)
PDIU-DS
(CONFIGURED IN THE "CONNECT TO MODEM"
MODE, P1 ~ P9 = B-C, SO IT FUNCTIONS LIKE A DTE)
NOTES:
1. Modem receives data on pin 2 (TD) and transmits data on pin 3 (RD).
2. The PDIU-DS must be in the connect to modem mode (P1 ~ P9 strapped B-C) so that it transmits
data on pin 2 (TD) and receives data on pin 3 (RD).
20
DB25 FEMALE
CONNECTOR
DB25 FEMALE
CONNECTOR
2022
RS-232 CABLE
1234678
5
1234678
DB25 MALE
CONNECTOR
22
PDIU-DS
PIN #
NAME
1
FG
3
RD
4
RTS
5
CTS
6
DSR
7
SG
8
DCD
20
DTR
22
RI
2
TD
MODEM
PIN #
NAME
1
FG
3
RD
4
RTS
5
CTS
6
DSR
7
SG
8
DCD
20
DTR
22
RI
2
TD
(50 ft max, 24 AWG;
customer supplied)
DB25 MALE
CONNECTOR