Toshiba DK8, DK 16 manual Qrcu Interface Connectors, Conference Circuits Qcnu

INSTALLATION-DK8 KSU & PCB

SECTION 100-816-204

MARCH 1993

DK8RCU1AV.1

J1

J2

FIGURE 4-11

QRCU INTERFACE CONNECTORS

following steps (Figure 4-7).

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

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

3)Align and insert QRCU connectors J1 and J2 into motherboard connectors J15 and J16 respectively (note the component side place- ment in Figure 4-7), and apply firm, even pressure to ensure proper mating of connec- tors. Push down until connectors lock together.

9.30QRCU Wiring

9.31The QRCU does not require any wiring.

9.40QRCU Programming Overview

9.41The following parameters may be specified:

Program 12

•Set QRCU release time.

Program 15

•Sets QRCU operation after CO line flash.

10CONFERENCE CIRCUITS (QCNU)

10.00General

10.01The QCNU provides two conference circuits which allow two simultaneous conferences (one

four-party and one three-party). The QCNU is stan- dard and is installed at the factory. If it is necessary to remove and replace the QCNU, turn the system off, remove the QCNU, and install another QCNU per paragraph 10.20.

10.02The QCNU is shown in Figure 4-7.

10.10QCNU Configuration

10.11The QCNU does not have to be configured for operation.

10.20QCNU Installation Procedure

10.21Install the QCNU in accordance with the following steps (Figure 4-7):

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

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

3)Align and insert QCNU connectors J1 and J2 into motherboard connectors J17 and J18 respectively, and apply firm, even pres-

sure to ensure proper mating of connectors. (Note the side with “➝RIGHT” silkscreened on it should be positioned as shown in Fig- ure 4-7.)

10.30QCNU Wiring

10.31The QCNU does not require any wiring.

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