Toshiba Strata DK 280 Installation Manual page 673

Table 13-I
PPTC Modified Wiring for External Modem to TTY Connection
PPCT (Modular to DB25) Adaptor, modified wiring for connecting a TTY
jack
to an external modem:
PPTCl A-5M ADAPTOR
MODEM
PlOWPIOUS, TTY JACK
RS-232
MODULAR PIN NO.
MODULAR PIN NO. DB25 PIN NO.
LEAD NAME
- l- to RD
W
6 to \ . 3* RD
I
I
-2 to TD
1 TD,
5
to
e 2* 1 TD
I
I I
-3
to
DSR DSR, 4 to ; 6 DSR
-4
to
DTR DTR, 3 to DIR
-5
to
DCD DCD, 2 to DCD
- 6 to SG 1 SG, 1 to
I
, 7
SG
4 Jumper to 5 RTS to CTS
IMPORTANT!
* PPTCIA-SM, pins 2 & 3 and pins 8 & 20 must be reversed in
the field, as shown, for modem connection. Set Hayes modem
to track status of carrier detect signal (AT & Cl) and to answer
(ATSO = 1).
Table 13-2
PPTC Wiring for Local Terminal or Personal Computer to TTY Connection
PPTC (Modular to DB25) Adaptor wiring for connecting TTY jack to a local
terminal or personal computer serial communications port.
PPTCl A-5M ADAPTOR
PIOU/PIOUS, -l-l-Y JACK
MODULAR PIN NO. MODULAR PIN NO.
DB25 PIN NO.
-1 to RD RD 6 to -
3
- 2
to TD
1 TD 5 to -I
2
-3
to DSR DSR 4 to -
6
-4
to DTR DTR 3 to -
20
-5 to DCD DCD 2 to - 8
- 6
to SG 1 SG 1 to -
7
4
Jumper to 5
DTE
RS-232
LEAD NAME
RD
TD
DSR
DTR
DCD
SG
RTS to CTS
DKO'l!
13-10
January 1996