Printed Circuit Boards; Telephones - Toshiba Strata DK 280 Installation Manual

The RCTUB (1 or 2) or RCTUBNBB units can support
one or two cabinets; its feature capacities are listed in
Table 1-1, The RCTUC (1 or 3)/D (1, 2, or 3) unit can
support one to six cabinets; its feature capacities are
also listed in Table 1-1.
1.4

Printed Circuit Boards

The system interfaces with CO lines, stations, and
peripheral devices via printed circuit boards (PCBs),
which plug into the base and expansion cabinet Slots,
and subassembly PCBs, which mount onto the plug-in
type PCBs. The Strata DK280 can support the
following PCBs:
Station PCBs (see Table 1-2)
circuits. Some limitations apply to Version 1, see
Worksheet 2, Table A.
PSTU (Versions 1, 2)-Eight standard telephone
circuits.
circuits (RSTS subassembly can be added for two
more standard telephone circuits).
telephone circuits.
Line PCBs (see Table 1-2)
RCOU- Four Loop Start CO lines (RCOS
subassembly can be added for four more Loop
Start lines).
RCIU- Four circuit Caller ID FSK receiver/
decoder PCBs.
PCOU-Four Loop Start CO lines.
RGLU-Four circuits that can individually be
assigned for Ground Start or Loop Start CO line
operation.
signaling only.
line circuits.
1-2
channels for DID, tie, Ground Start CO, or Loop
Start CO line operation).
Console PCBs (see Table 1-2)
RATU-Provides interface for up to four attendant
consoles or PC attendant consoles.
Option Interface PCB (see Table 1-3)
Sensor, Maintenance Port, SMDR, SMDI, and MIS
for ACD.
digital telephone
Optional Subassembly PCBs (see Table 1-4)
RCTU).
RDSU).
RCOU).
RMDS-remote maintenance PCB (on RSIU).
PIOUS).
(on PEKU, PESU).
PCBs (on RCIU).
1.5
The Strata DK280 system supports Toshiba
Proprietary Digital (DKT) and older series Electronic
Telephones (EKTs). Standard telephones (500 or
2500 series) and devices that require a standard
telephone line interface (fax, modem, VM, etc.) can
also be connected to DK280:
interface PCB (can have

Telephones

8, 16, or 24
January 1996