Toshiba Strata AirLink DK40i, Installation And Maintenance Manual

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DK14 Installation
QRCU3 - DTMF Receiver/ABR Tone Detector Unit
Strata DK I&M 6/00
1-17
DK14 Installa
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QRCU3 - DTMF Receiver/ABR Tone Detector Unit
System:
DK14
Circuits per PCB:
3 DTMF/ABR Tone Receivers
Interfaces with:
two-wire devices such as standard telephones
Auto Attendant devices, separate BGM source connection
voice mail machines
Facsimile machines.
Older Version(s):
QRCU1/QRCU2
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 Figure 1-13 into the motherboard
connectors J15 and J16 respectively (note the component side placement in Figure 1-4 ). Apply
firm, even pressure to ensure proper mating of connectors. Push down until the connectors
lock together.
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.
J1 J2
QRCU3A V.1
2394
QKYS
Connector