Toshiba DK 16, DK8 manual STANDARD/ELECTRONIC TELE- Phone Interface Unit Pesu, Pstu Wiring

INSTALLATION-DK 16 KSU & PCB

SECTION 100-816-205

MARCH 1993

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.

9.30PSTU Wiring

9.31Refer to PSTU Wiring Diagram, Section 100- 816-208, for wiring/interconnecting details.

9.32The PSTU is registered for use with OL13A type lines for off-premises stations.

9.40PSTU Programming Overview

9.41The 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 100-816-207for 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.

10STANDARD/ELECTRONIC TELE- PHONE INTERFACE UNIT (PESU)

10.00General

10.01The 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

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.

10.02The PESU controls and interface connec- tors are shown in Figure 5-16 and described in Table 5-D.

10.10PESU Hardware Options

10.11The PESU supports the following hardware options:

• Internal option: Off-hook Call Announce (EOCU).

NOTE:

Refer to Section 100-816-206and Section 100-816-207for installation of external op- tions.

10.12Off-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).

5-22