Power Failure Emergency Transfer (Dpft) Installation - Toshiba Strata DK40 Installation & Maintenance Manual

Peripheral Installation
To KSTU/RSTU/
PSTU-A1
To KSTU/RSTU/
PSTU-B1
To TCOU/PCOU-A1
To TCOU/PCOU-B1
DG (Input)
RSTU or PSTU
Control
-24V (Input)
Figure 6-1

Power Failure Emergency Transfer (DPFT) Installation

1. Mount the DPFT on or near the MDF.
Note
2. Using 25-pair cables with amphenol-type connectors (female for DPFT connector J1,
male for DPFT connector J2), connect the DPFT to two 237 Krone strips.
3. Connect the Analogue Exchange lines selected for emergency use to the DPFT J1-block
"PSTN-A" and "PSTN-B" terminals.
4. Connect the TCOU or PCOU circuits related to the emergency Exchange lines to the
DPFT J1-block "PCOU-A" and "PCOU-B" terminals.
5. Connect the standard telephone stations selected for emergency use to the DPFT J2-
block "TEL-A" and "TEL-B" terminals.
6-2
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
J2-27
J2-2
J1-27
J1-2
J1-50
J1-25
Notes
• Representation of first of eight circuits.
• Conditions shown with AC power (-24VDC) off.
DPFT Circuit Diagram
Refer to Chapter 4 – DK40 Universal Slot PCB
tables.
Telephone Current
Detector
Power Failure Options
J2-26
J2-1
J1-26
J1-1
Relay
Wiring, DPFT/MDF interconnecting
Strata DK40 I&M Manual Spring 1999
To TEL-A1
To TEL-B1
To Exchange
line -A1
To Exchange
line -B1
1498