DK14 Installation
QSTU2A - Standard Telephone Interface Unit
Strata DK I&M 6/00
1-15
DK14 Installa
ti
on
QSTU2A - Standard Telephone Interface Unit
Circuits per PCB:
two standard telephone circuits
Interfaces with:
standard telephones
Auto Attendant devices
separate BGM source connection
voice mail machines
facsimile machines
Older Version(s):
QSTU1A
Note
For the system to recognize the Dual-Tone Multi-Frequency (DTMF) tones generated by
standard telephones (or any other device connected to a QSTU2 port), a QRCU3 must be
installed.
The QSTS2 PCB is factory-installed on the QSTU.
QSTU2 Configuration
The QSTU2 does not require configurations for the ring generator voltage level. Most standard
telephones and two-wire devices require 190; however, some devices may experience ring-trip at
190, and should be set at 130.
QSTU2 Installation
1. Make sure the power supply switch is Off.
2. Align the QSTU2 connectors J1, J2, J3, and J4 to the motherboard connectors J11, J12, J13,
and J14 respectively. Apply firm, even pressure to ensure proper mating of the connectors (see
Figure 1-12 QSTU2/QSTS2 Printed Circuit Boards
J5
190
SW1
J3
J2
130
J6
QSTS2
(factory installed)
QSTU2
QSTU2A
J1
J4
2393
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