Toshiba Strata DK8 - Manual (Page 92)

5-22
INSTALLATION-DK 16 KSU & PCB
SECTION 100-816-205
MARCH 1993
four electronic telephone interface circuits (5 ~ 8)
identical to PEKU circuits for connecting electronic
telephones, BGM or an external amplifier. The
PESU provides a ring generator for circuits 1 and 2
(with a ring voltage of either 190V P-P or 130V P-
P), and it must be installed in the Expansion Unit.
•
The PESU does not support an HDSS console
connection.
•
The PESU provides connectors to mount the
EOCU for OCA to electronic telephones.
NOTE:
A KSU must be installed in the Base Unit for
the system to recognize Dual-Tone Multi-
Frequency (DTMF) tones sent from standard
telephones or other two-wire devices that are
connected to the PESU.
10.02 The PESU controls and interface connec-
tors are shown in Figure 5-16 and described in
Table 5-D.
10.10 PESU Hardware Options
10.11 The PESU supports the following hardware
options:
•
Internal option: Off-hook Call Announce
(EOCU).
NOTE:
Refer to Section 100-816-206 and Section
100-816-207 for installation of external op-
tions.
10.12 Off-hook Call Announce (EOCU) Installa-
tion. Install the Off-hook Call Announce in accor-
dance with the following steps:
1) Remove the PCB from its protective packag-
ing.
NOTE:
PESU connectors P10, P20, P40, P50, and
P60 are positioned to allow installation of the
EOCU only in the proper position (refer to
Figure 5-16).
2) Mate the EOCU connectors J10, J20, J40,
J50, and J60 with the PESU connectors P10,
P20, P40, P50, and P60 (refer to Figure 5-16).
potentially hazardous ring voltage. Do not
remove this shield.
2) Ensure that the PSTU subunit (SSTU) is se-
curely attached to the PSTU (refer to Figure 5-
15).
NOTE:
W1, the ring generator level option, should be
set in the H position (factory) for initial instal-
lation.
3) Insert the PSTU into the appropriate slot (refer
to Paragraph 5.22), and apply firm, even pres-
sure to ensure proper mating of connectors.
9.30 PSTU Wiring
9.31 Refer to PSTU Wiring Diagram, Section 100-
816-208, for wiring/interconnecting details.
9.32 The PSTU is registered for use with OL13A
type lines for off-premises stations.
9.40 PSTU Programming Overview
9.41 The following parameters may be specified,
through programming, for the PSTU:
Program 03
•
Specify code 31 for all slots that have PSTUs
installed.
Program 31
•
Used to configure all PSTU ports connected to
voice mail (Section 100-816-207 for more de-
tails).
Program 10-2
•
Used to set standard telephone ringing option.
•
Also used for BGM connection.
Program 19
•
Used for BGM connection also.
10 STANDARD/ELECTRONIC TELE-
PHONE INTERFACE UNIT (PESU)
10.00 General
10.01 The Standard/Electronic Telephone Inter-
face Unit (PESU) provides two standard telephone
interface circuits (1 and 2) identical to PSTU circuits
for connection between standard telephones, or
two-wire devices, and the system. It also provides