Data Interface Units - Toshiba Strata DK24 Installation And Maintenance Manual

can be employed as the paging amplifier.
Since each HDSS console requires the
equivalent of two electronic telephones for
interface, a total of 17 equivalent electronic
telephones must be interfaced and, there-
fore, three PEKU PCBs are needed. Aside
from common equipment, the PCBs required
for this configuration are as follows:
Three PCOU PCBs
Three PEKU PCBs
One PEPU PCB
•
A total of seven universal slots are needed,
which is within the maximum of DK56's eight
universal slots.
Example 5—A mid-sized business needs 15 CO
lines, 12 digital telephones, two DDSS consoles,
14 electronic telephones, two HDSS consoles,
and an External Paging system interface to drive
an existing 8-ohm speaker. In addition, the
business wants to track its employees' calling
activity by using the Station Message Detail
Recording (SMDR) feature.
•
Because an External Paging system and
SMDR are required, the PIOU amplified page
output and SMDR interface will be needed.
Two DDSS consoles require the equivalent
of two digital telephone circuits in addition to
the 12 digital telephones, for a total of 14
digital telephone circuits; this results in the
installation of two PDKU PCBs. Two HDSS
consoles require the equivalent of four elec-
tronic telephones, for a total of 18 electronic
telephone circuits (including the 14 elec-
tronic telephones); this results in the installa-
tion of three PEKU PCBs. The final PCB
configuration (in addition to Release 3 or 4
common equipment) is:
Four PCOU PCBs
Three PEKU PCBs
Two PDKU PCBs
One PIOU PCB
•
This configuration requires 10 PCBs, which
can only be supported by the DK96.

2.20 Data Interface Units

2.21 Integrated Data Interface Unit (PDIU-DI
and PDIU-DI2): The PDIU-DI(2) can replace the
normal base of the digital telephone to provide the
telephone with Data Calling capability. Each sys-
INSTALLATION-CONFIGURATION
tem can support a maximum number of PDIU-
DI(2)s, as shown in Table 4-B. The PDIU-DI(2)
which is attached to the digital telephone shares
the same digital circuit on the PDKU.
NOTE:
The PDIU-DI and the PDIU-DI2 are identical,
except that the PDIU-DI attaches to 1000-
series Digital telephones and the PDIU-DI2
attaches to 2000-series Digital Telephones.
2.22 Stand-alone Data Interface Unit (PDIU-DS):
Each PDIU-DS requires a dedicated circuit on a
PDKU, unlike the PDIU-DI which shares a circuit
with the digital telephone it is integrated with. There-
fore, each PDIU-DS reduces the digital telephone
maximum capacity by one. Each system can sup-
port a maximum number of PDIU-DSs, as shown in
Table 4-B.
NOTES:
1. The PDIU-DI and PDIU-DS will function
with all slots, except slots 11 ~ 14 in DK96.
2. There are two PDKU versions: PDKU1
and PDKU2. These versions are identical,
except that the PDKU1 can only support
PDIU-DIs and PDIU-DSs on circuits 1 ~ 7,
while all PDKU2 circuits, 1 ~ 8, can sup-
port PDIU-DIs and PDIU-DSs.
Example 6—A small law firm requires three CO
lines, 10 digital telephones (all of which will be
equipped with a PDIU-DI(2) connected to a
personal computer) and two PDIU-DSs con-
nected to modems.
•
The 10 digital telephones and the two PDIU-
DSs connected to the modems call for 12
digital circuits. (The PDIU-DIs require no
dedicated digital circuits, because they share
the circuits with the telephones that they are
connected to.) If the two modems are config-
ured in a system modem pool, then one
standard telephone circuit is required for
each; therefore a PESU or PSTU would be
needed. The three CO lines can be handled
by one PCOU PCB. The PCBs required for
this configuration are as follows:
Two PDKUs
One PCOU
One PESU or PSTU
•
A total of four universal slots are required for
4-7
SECTION 400-096-204
SEPTEMBER 1992