Toshiba Strata DK24 Installation And Maintenance Manual page 209

FIGURE 8-26
VOICE MAIL BLOCK DIAGRAM
1) Connect the modular cord from the PIOU or
PIOUS TTY port to the PPTC adaptor and
then to the external maintenance modem RS-
232 25-pin connector.
2) Connect the external maintenance modem
line-side to a dedicated CO line (tip and ring)
or to a dedicated PSTU or PESU standard
telephone port (tip and ring). Refer to Wiring
Diagrams, Section 400-096-209, for wiring/
interconnecting details.
3) Set the PIOU or PIOUS SW2 switch to match
the modem or terminal baud rate:
•
Push in for 300 bps (baud rate indicator
CD4/LED is lighted); let out for 1200 bps
(CD4 is not lighted).
4) Set the PIOU or PIOUS SW3 switch to the
TTY position.
NOTE:
NOTE:
PCTU
The CRCU (-4 or -8) must be installed on the
or
PCTU or PCTUS1 to allow VM DTMF dialing.
PCTUS
CRCU (-4 OR -8)
MDF
PSTU (CKT 1~8)
or
PESU (CKT 1 & 2)
25-PIN CABLE
(8 CIRCUITS PER PSTU)
(2 CIRCUITS PER PESU)
INSTALLATION-PERIPHERALS
VOICE MAIL
PSTU/PESU CIRCUIT TIP & RING
(1 PAIR PER PORT)
The PIOU or PIOUS SW3 switch is set to the
MODEM position for IMDU operation only.
5) Set the P13 jumper plug on the PIOU to the
BELL configuration, or cut the W4 jumper on
the PIOUS (also for BELL configuration).
NOTE:
The P13 (PIOU) or W4 (PIOUS) CCITT con-
figurations are not normally used in the USA.
6) Programming and system testing, via the ex-
ternal maintenance modem, is described in
the Remote Maintenance Procedures, Sec-
tion 400-096-600. Access to the external main-
tenance modem is accomplished as follows:
•
If the modem is connected to a dedicated
CO line, call the CO line number to estab-
lish modem communication.
•
If the modem is connected to a PSTU or
PESU port, call a DK CO line that can be
8-39
SECTION 400-096-208
SEPTEMBER 1992
MACHINE