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INSTALLATION-PERIPHERALS
SECTION lOO-816-207
MARCH1993
HAYES-TYPE SMART MODEM
(FUNCTIONS LIKE A DCE)
PDIU-DS
(CONFIGURED IN THE “CONNECT TO MODEM”
MODE, PI - P9 = B-C, SO IT FUNCTIONS LIKE A DTE)
MODEM PDIU-DS
PIN# 1 2 3 4 5 6 7
8 20 22 PIN# 1 2 3 4 5 6 7 8 20 22
NAME FG TD RD RTS CTS DSR SG DCD DTR RI NAME FG TD RD RTS CTS DSR SG DCD DTR RI
Rear view of modem DB25 connector Rear view of PDIU-DS DB25, connector
1 DB25 FEMALE 1 t DB25 FEMALE 1
NOTES:
DB25 DB25
PIN # NAME PIN #
8 DCD 8
3 RD 3
2 TD 2
20 DTR 20
7 SG 7
6 DSR 6
4 RTS 4
5
CTS
5
22
RI
22
1
FG 1
RS-232 CABLE
(50 ft max, 24 AWG;
customer supplied)
1. Modem receives data on pin 2 (TO) and transmits data on pin 3 (RD).
2. The PDIU-DS must be in the connect to modem mode (Pl m P9 strapped B-C) so that it transmits
data on pin 2 (TO) and receives data on pin 3 (RD).
I
FIGURE 7-28
DK8 AND DK16 PDIU-DS TO HAYES-TYPE SMART MODEM, W-232 CONNECTOR/CABLE CONNECTIONS
7-45