Qrcu3 - Dtmf Receiver/Abr Tone Detector Unit; Qrcu3 Configuration; Qrcu3 Installation; Qrcu3 Programming - Toshiba STRATA DK14 Installation And Maintenance Manual

QRCU3 - DTMF Receiver/ABR Tone Detector Unit

System:
Circuits per PCB:
Interfaces with:
Older Version(s):
The QRCU3 must be installed to recognize Dual-Tone Multi-Frequency (DTMF) tones generated
by a standard telephone (or any other device connected to a standard telephone circuit (QSTU2),
and it is required for Direct Inward System Access (DISA) calls. The QRCU3 circuits are also
used to detect busy tone for the Automatic Busy Redial (ABR) feature and must be installed to
allow ABR to operate.

QRCU3 Configuration

The QRCU3 does not have to be configured for operation.

QRCU3 Installation

1. Make sure that the power supply switch is Off.
2. Align and insert the QRCU3 connectors J1 and J2 (see
connectors J15 and J16 respectively (note the component side placement in
firm, even pressure to ensure proper mating of connectors. Push down until the connectors
lock together.
QKYS
Connector
Figure 1-13 QRCU3 Printed Circuit Board

QRCU3 Programming

The following parameters can be specified:
Program 12: Set QRCU3 release time.
Program 15: Sets QRCU3 operation after CO line flash.
Strata DK I&M 6/00
DK14
3 DTMF/ABR Tone Receivers
two-wire devices such as standard telephones
Auto Attendant devices, separate BGM source connection
voice mail machines
Facsimile machines.
QRCU1/QRCU2
QRCU3A V.1
J1
QRCU3 - DTMF Receiver/ABR Tone Detector Unit
Figure 1-13 into the motherboard
Figure
J2
2394
DK14 Installation
1-4). Apply
1-17