Toshiba Strata DK 280 Installation Manual page 666

13.4 Terminal/Modem Installation
Strata DK280 provides customers with a number of
Remote Administration and Maintenance configuration
options:
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A customer-supplied, 280Admin PC, maintenance
terminal, or smart modem can be connected to the
TTY port on the optional RSSU, PIOU or PIOUS
PCB or to an RSIU or RSIS locally. The remote
site requires a terminal or PC with
communications or 280Admin software and a
modem (see Figures 13-2 - 13-5).
The Toshiba IMDU modem (300 or 1200 baud full-
duplex) can be connected to the optional PIOU or
PIOUS to allow system programming and testing
to be accomplished from a remote location (Figure
13-4).
The Toshiba RMDS modem can be connected to
an optional RMDS (see Figure 13-4) or a RMDS
installed on a RSIU PCB-Release 3 and above.
Instead of a modem or terminal, a Stand-alone
Data Interface Unit (PDIU-DS) can be connected
to the TTY port on the RSIU, RSIS, PIOU, or
PIOUS so that maintenance and programming can
be administered internally or externally, internal
desktop personal computers or terminals must be
connected to Integrated Data Interface Units
(PDIU-DI or RCPI-DI).
Refer to the 280Admin User Guide for more
information about connecting the 280Admin PC to
the DK280.
Note:
An external modem is required for Remote
Maintenance if an RMDS or IMDU is not
installed on the RSIU, PIOU or PIOUS. The
RMDS or IMDU has a built-in maintenance
channel for remote connection; however, an
external modem requires a CO line or
standard telephone port (Figures 13-2 and
13-3).
13.4.1 Maintenance Terminal/External
Modem Option System Hardware
Requirements
The Strata DK280 must be equipped with a PIOU or
PIOUS PCB to support the maintenance
terminal/external modem options. Connecting the local
maintenance terminal or external maintenance modem
to the PIOU or PIOUS PCB is done with a standard
three-pair modular cord and a PPTC adapter
connected to the PCB TTY jack. (Figures 13-2, 13-3,
and 13-5).
13.4.2 local Maintenance Terminal
Installation
See Figure 13-5 and follow these steps to install the
ASCII terminal.
1.
2.
3.
4.
5.
6.
Connect the three-pair modular cable (24 AWG
twisted pairs) and the PPTC or PPTCS adapter
from the RSIU, RSIS, PIOU, or PIOUS TTY port to
the remote maintenance terminal DB25 or DB9
connector.
Set the PIOU or PIOUS SW2 switch to match the
modem or terminal baud rate as follows:
+ Push in for 300 bps (baud rate indicator CD4
is lit); let out (by pushing again) for 1200 bps
(CD4 is not lit).
+ Use Program 76 to set the RSIU or RSIS port
for TTY operation.
Set the PIOU or PIOUS SW3 switch to the TTY
position.
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) and W4 (PIOUS) CCITT
configurations are not normally used in the '
USA.
Set terminal communication parameters to seven
bits, even parity, one-stop bit (300 - 9600 bps).
If using RSIU/RSIS/RMDS, see Program 76 for
TTY or modem parameter setup.
IMPORTANT !
If a digital or electronic telephone is in the
program mode, programming from the
maintenance terminal is allowed.
13.4.3 Remote Maintenance Option
Installation
RMDS and
IMDU Maintenance Modem
(Figure 13-4): The RMDS mounts on the RSI-U PCB
and the IMDU mounts on the PIOU or PIOUS PCB
and provides 300 or 1200 bps data transmission. Both
January
1996
13-3