Rstu Standard Telephone Interface Unit; External Options; Rstu2/Pstu2 Installation - Toshiba Strata DK40 Installation & Maintenance Manual

DK40 Universal Slot PCBs

External Options

W1 Ring Generator Switch Configuration (PSTU2)

RSTU2/PSTU2 Installation

1. Make sure the factory-installed SSTS or SSTU subunit is securely attached to the
RSTU2/PSTU2
WARNING!
2. Insert the RSTU2/PSTU2 (component side facing right) into the appropriate slot, and
apply firm, even pressure to ensure proper mating of connectors. RSTU2/PSTU2 must
be installed per tables in
3. After installing the RSTU2/PSTU2, gently pull the RSTU2/PSTU2 outward. If the
connectors are properly mated, a light resistance is felt.
Table 3-9 RSTU2/PSTU2 Controls, Indicators, and Connectors
Control/Indicator/Connector
Ring voltage W1 jumper
(PSTU2 only)
R48S connector P6 (RSTU2 only)
R48S connector P7 (RSTU2 only)
3-26
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
On the PSTU2, ensure the W1 switch is set to the "H" (190V P-P) position for
initial installation. The "L" (130V P-P) position is used if devices connected to the
PSTU2 experience ring trip.
(Figure 3-12
The protective shield on the back of the RSTU2/PSTU2 is
designed to protect the installer from potentially
hazardous ring voltage. Do NOT remove this shield.
3-terminal jumper
9-pin connector
6-pin connector

RSTU Standard Telephone Interface Unit

and Figure 3-13).
Chapter 1 – DK40 Configuration.
Type of Component Description
Sets ring generator voltage level for all
circuits. H=190V P-P , L=130V P-P .
Interface connector to P6 of R48S.
Interface connector to P7 of R48S.
Strata DK40 I&M Manual Spring 1999