Rslu Cabinet Slot Installation - Toshiba Strata DK 280 Installation Manual

The RSIS PCB can support any one of the hardware
devices listed above via its RS-232 modular jack. The
RMDS PCB can function two ways: the RMDS can
operate like an RSIS allowing it to support any one of
the hardware devices listed above locally from its RS-
232 modular jack; or, the RMDS can operate as a
1200 bps (bits-per-second) or 2400 bps system
remote maintenance modem. The function of the
RMDS PCB (modem or RS-232 port) is set in a
system program option. The RMDS can be set for one
function only; it cannot support both functions
simultaneously. When configured as a modem, the
RMDS PCB supports only the DK280 remote
maintenance, ASCII terminal, or 280Backup, and
280Admin functions, and does not simultaneously
support SMDI, SMIS, SMDR, etc. (See Figure 7-38 in
Chapter 7-Wiring Diagrams.)
The total bits-per-second (bps) data rate of the four
RSIU/RSIS/RMDS (RS-232/modern) ports combined
cannot exceed 9600 bps. The RSIU/RSIS RS-232
ports can be individually set in system programming to
operate at 1200 bps, 4 ports max.; 2400 bps, 3 ports
max.; 4800 bps, 2 ports max.; or 9600 bps, 1 port
max.; or, any other combination that does not exceed
9600 bps. The RMDS modem function can be set to
operate at 1200 bps or 2400 bps; however, if the
RMDS port is used as a RS-232 port instead of a
modem, it can also be set for 4800 bps or 9600 bps.
The TTY and modem function cannot operate on
separate RSIU/RSIS/RMDS ports simultaneously. If
both functions are programmed at the same time on
separate ports, the function of the lowest numbered
RSIU/RSIS/RMDS port (TTY or modem) will be active.
The communication parameters for all RSIU/RSIS/
RMDS port function types except the SMDR are:
n
Data word bits = 7
n
Parity = even
n
Stop bits = 1
The communication parameters for an RSIU/RSIS
SMDR port is:
n
Data word bits = 8
n
Parity = none
n
Stop bits = 1
Only one RSIU can be installed per DK280 system.
When the RSIU PCB is installed, the RSSU, PIOU,
PIOUS, IMDU modem, and PEPU PCBs can still be
installed with all of their respective paging, modem,
and RS-232 port functions available; however, five
RS-232/modern ports can be installed in one DK280
system. When installed together in the same DK280
system, the RSIU/PIOU/PIOUS/RSSU port functions
are identified and enabled (turned On/Off) in system
programming. If the same function is programmed for
an RSIU port and a PIOU, PIOUS, RSSU port, the
only RSIU port will function.
4.19.2 RSIS/RMDS Piggy-Back Installation
Install all RSIS and RMDS PCBs on the RSIU PCB
before installing the RSIU into the DK280. Each RSIS
or RMDS piggy-back PCB is installed on the RSIU
PCB as shown in Figure 4-38. Up to three RSIS PCBs
can be installed on the RSIU PCB; only one RMDS
PCB can be installed on the, RSIU. The function and
bit-per-second (bps) data rate of each RSIS and
RMDS circuit port is set in Program 76 as described in
the Programming Part that follows.
After installing all RSIS/RMDS PCBs, install the RSIU
into the DK280 per the following instructions.
4.19.3 RSIU Cabinet Slot Installation
n
RSIU installed into a new system:
The RSIU is compatible with DK280, Release 3,
RCTU PCBs and above only. The RSIU must be
installed only in slot 11 of the base cabinet (see
Figure 4-39 to install the RSIU PCB). When RSIU
is installed in slot 11, a PDKU or PEKU PCB must
be installed in slot 12 of the base cabinet to
support the programming telephone. When RSIU
is installed in slot 11, the first 8-station ports (OOO-
007) will appear on the PDKU or PEKU as
installed in slot 12. The programming telephone
will then be on the 6th circuit (port 005; or, 013
until Program 03 Code 49 is set for slot 11) of the
PDKU in slot 12. The function and bit-per-second
(bps) data rate of the RSIU or RMDS, RS-232
circuit port is set in Program 76 as described in
the Programming Part that follows.
n
RSIU installed into an existing system without DID
and/or tie lines:
All information provided in the first paragraph
regarding RSIU installation in a new system
applies to installing an RSIU in an existing system.
Hence, most PCBs must be moved to the next
highest slot using the following steps.
January 1996 4-59