INSTALLATION-DK8 KSU & PCB
SECTION 100-816-204
MARCH 1993

4-15

J1 J2

DK8RCU1A V.1

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.
9.30 QRCU Wiring
9.31 The QRCU does not require any wiring.
9.40 QRCU Programming Overview
9.41 The following parameters may be specified:
Program 12
Set QRCU release time.
Program 15
Sets QRCU operation after CO line flash.

10 CONFERENCE CIRCUITS (QCNU)

10.00 General
10.01 The 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.
10.02 The QCNU is shown in Figure 4-7.
10.10 QCNU Configuration
10.11 The QCNU does not have to be configured
for operation.
10.20 QCNU Installation Procedure
10.21 Install 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.)
10.30 QCNU Wiring
10.31 The QCNU does not require any wiring.