Toshiba DK8 Standard Telephone Interface Unit Qstu, Dtmf RECEIVER/ABR Tone Detector Unit Qrcu

7.40QCDU Programming Overview

7.41The following parameters may be specified, through programming, for the QCDU.

Program 10-1

•Allows/denies two-CO Line Conference and Di- rect Inward System Access (DISA).

Program 15

•Auto Release detection; DISA, and other at- tributes to the CO line.

Program 16

•Assigns CO line to groups 81 ~ 84, and dial 9 group.

Program 40

•Assigns stations access to CO line (incoming and outgoing access).

8STANDARD TELEPHONE INTERFACE UNIT (QSTU)

8.00General

8.01The QSTU provides two standard telephone circuits. The QSTU supports two-wire devices such as standard telephones, Auto Attendant devices, separate BGM source connection, voice mail ma- chines, and facsimile machines.

NOTE:

For the system to recognize the Dual-Tone Multi-Frequency (DTMF) tones generated by standard telephones (or any other device con- nected to a QSTU port), a QRCU must be installed.

8.02The QSTU is shown in Figure 4-10. Note that the QSTS PCB is factory installed on the QSTU.

8.10QSTU Configuration

8.11The QSTU only has to be configured for the ring generator voltage level, nothing else. Before installing the QSTU in the KSU, set the SW1 ring generator to 130V P-P or 190V P-P (Figure 4-10). Most standard telephones and two-wire devices require 190; however, some devices may experi- ence ring-trip at 190, and should be set at 130.

INSTALLATION-DK8 KSU & PCB

SECTION 100-816-204

MARCH 1993

8.20QSTU Installation Procedure

8.21Install the QSTU in accordance with the fol- lowing steps (Figure 4-7):

1)Remove the PCB from its protective packag- ing.

2)Set the ring voltage jumper plug SW1 to select the appropriate ring generator voltage level, either 130V P-P or 190V P-P.

3)Make sure that the power supply switch is OFF.

4)Align and insert QSTU connectors J1, J2, J3, and J4 motherboard connectors J11, J12, J13, and J14 respectively, and apply firm, even pressure to ensure proper mating of the connectors.

8.30QSTU Wiring

8.31Refer to DK8 MDF to KSU Amphenol Wiring in Section 100-816-208for QSTU wiring.

8.32The QSTU must be connected to a OL13A (or equivalent) type lines for off-premises stations. (300 ohms loop resistance max., including the telephone or other devices DC off hook resistance.)

8.40QSTU Programming Overview

8.41The following parameters may be specified for the QSTU:

Program 31

•Used to configure all QSTU ports connected to voice mail (see Chapter 7 for voice mail installa- tion).

Program 10-2

•Used to set standard telephone ringing option and separate BGM assignment.

NOTE:

QSTU Ports are fixed. They are assigned even if a QSTU is not installed.

9DTMF RECEIVER/ABR TONE DETECTOR UNIT (QRCU)

9.00General

9.01The QRCU must be installed to recognize

4-13