Toshiba Strata DK 24, Installation And Maintenance Manual

Page: 207 / 372

8-37
INSTALLATION-PERIPHERALS
SECTION 400-096-208
SEPTEMBER 1992
FIGURE 8-25
PIOU/PIOUS (TTY) MAINTENANCE PORT (EXTERNAL MODEM OR ASCII TERMINAL)
BASIC CONNECTION
PIOU
or
PIOUS
PDIU-DS
or
ASCII Terminal
or
External Modem
(Hayes-Compatible)
3-pair
Modular
Cord (7 ft. max)
TTY
Modular
Jack
Modular
Jack
Toshiba
PPTC1A-5M,
RS232, Modular
to DB25 Adaptor
DB25
Plug
ASCII TERMINAL
BASIC WIRING (see: PIOU/PIOUS TTY Wiring in Chapter 9 for more detail)
PIOU/PIOUS, SMDR Jack
Modular Pin No.
1
2
3
4
5
6
Modular Pin No.
6
5
4
3
2
1
DB25 Pin No.
3
2
6
20
8
7
4 Jumper to 5
RS-232
Lead Name
RD
TD
DSR
DTR
CD
SG
RTS to CTS
50 ft. max
24 AWG Wire
Twisted Pair
Modularized
PPTC1A-5M Adaptor
To
To
To
To
To
To
To
To
To
To
To
To
Dedicated PSTU
Port (T&R) or
Direct to
Dedicated
Central Office
Line (T&R)
T&R
Connection
of External
Modem Only
Line Side
of External
Modem
EXTERNAL MODEM
BASIC WIRING (see: PIOU/PIOUS TTY Wiring in Chapter 9 for more detail)
PIOU/PIOUS, SMDR Jack
Modular Pin No.
1
2
3
4
5
6
Modular Pin No.
6
5
4
3
2
1
DB25 Pin No.
2
3
6
8
20
7
4 Jumper to 5
RS-232
Lead Name
TD
RD
DSR
DTR
CD
SG
RTS to CTS
PPTC1A-5M Adaptor
To
To
To
To
To
To
To
To
To
To
To
To
PPTC1A-5M, 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&C1) and to auto answer (ATS0=1). IMPORTANT:
*
*
*
• 7-bits
• Even parity
• 1-stop bit
*
*