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STRATA DK
GENERAL DESCRIPTION
DECEMBER 1990
TABLE F
NETWORK REQUIREMENTS
PCB
Facility
Ringer
Interface Code
Network Jack
Equivalence
PCOU
(Loop start line)
02LS2
RJ14C 0.2B
PEMU
(Type I, TIE line)
2-wire
TLllM
RJ2EX N/A
4-wire
TL31 M
RJ2GX N/A
PESU/PSTU
(Off-premises station) OL13A RJ21 X N/A
(see note)
NOTE:
On PEW, circuits I and 2 only provide off-premises capability.
Power Failure Transfer Unit: An optional exter-
nal power failure transfer unit (DPFT) may be
connected to the system with a PSTU PCB to
provide emergency service in the event of a
power failure.
Up to eight CO lines are
switched directly to dedicated conventional
telephones (customer-provided 2500- or 500-
type) for incoming and outgoing calls. When
power is restored, stations/CO lines reserved
for power failure transfer will automatically
return to normal service. Standard telephones
that are connected to the PESU PCB can also
be connected to the DPFT to provide emer-
gency service.
Customer-supplied Peripherals
All three STRATA DK digital key systems sup-
port many other commonly used peripheral
devices which can be supplied by the customer.
Several of these devices are listed below (with
the supporting PCB or data interface unit noted):
l
Auto attendant device (PSTU or PESU)
l
Dictation equipment (PSTU or PESU)
l
External maintenance modem (PIOU or
PIOUS)
l
Facsimile (PSTU or PESU)
0 Local maintenance terminal (PIOU or PIOUS)
l
Modem (PSTU, PESU, or PDIU-DS)t
l
Paging system (PIOU, PIOUS, or PEPU)
l
Radio paging equipment (PSTU or PESU)
l
Remote maintenance terminal (PIOU or
PIOUS with IMDU)
l
Standard telephones (PSTU or PESU)
l
SMDR printer/call accounting device (PIOU
or PIOUS)
l
Voice mail messaging system (PSTU or
PESU)
l
Printers (PDIU-DS)t
l
Personal Computers (PDIU-Dl)t
l
Mainframe Computer Access (PDIU-DS)t
3 SYSTEM HARDWARE DESCRIPTION
Key Service Units
Key Service Unit Exterior: All three systems
can be mounted on a wall or table top. The
basic key service unit consists of a single
metal cabinet (Figure 2) with the following
dimensions. Weight measurements approxi-
mate fully loaded systems.
STRATA DK24
Height: 10.6 in (269 mm)
Width: 16.0 in (406 mm)
Depth: 9.1 in (230 mm)
Weight: 194 Ibs (9 kg)
t Requires Release 3
software
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