Sinetech Uninterruptible Power Supplies and Power Protection DC Backup Systems
Custom Built

Home | Products | Email | Contact Details | Profile | Lightning Information
Tel: (++27) 11 886-7874 Fax : (++27) 11 787-0178

Print Version (100kb)
DCBS SERIES
DC Supply for PABX System		  

The PABX-DBS unit is a robust and extremely reliable DC battery eliminator / battery charger which provides a smooth, regulated DC output despite large mains and load variations. The unit complies with Telcom’s regulations and produces less than 2mv Psophometric ripple (referred to 800Hz).

The unit is of the full wave thyristor regulator type and has the advantage of rugged simplicity and high reliability with low heat dissipation. Protection is provided electronic current limiting and fuses. And important feature of this is parallel operation. This means high current capability and parallel redundant reliability. A further feature in parallel operation, is that units may be removed or replaced on load.

The unit can be supplied in ST format (standard unit), SR format (semi-redundant unit).

The standard configuration includes power fail alarm, over voltage alarm, voltmeter and ampmeter. Additional options are available such as battery low alarm and low voltage disconnect which will prevent a deep discharge of the battery bank.

The battery banks can be supplied in either a free standing steel frame (see above picture) or in a matching battery cabinet. The standard battery set is of a semi-sealed maintenance free lead acid type with a life span of 4-6 years.

The units are supplied in a standard steel cabinet which can be either free standing or wall mounted.

PABX DC-UPS BACKUP SYSTEM ST (Standard Unit)

The ST PABX DC-UPS Backup System is a single along DC UPS / battery charger system. The unit includes a DC over voltage alarm and a mains fail alarm. The charger unit and the battery stand or box, are separate units (see table for Battery Stand/Box sizes). The charger box is constructed in such a way that it is either free standing or wall mountable.

PABX DC-UPS BACKUP SYSTEM SR (Semi Redundant Unit)

The SR PABX DC-UPS Backup System is a semi-redundant stand along DC UPS / battery charger system. The unit includes a DC over voltage alarm and a mains fail alarm. The system compromises of a single main transformer and a DC choke. The rectifier bridge and the electronic firing circuit are duplicated. A simple relay control circuit is used to control the system on a hot standby basis, i.e. the system will run off the master bridge as standard. In the unlikely event of the master bridge failing, a second bridge will operate until the master bridge is restored. Blocking diodes are provided to prevent reverse power into the faulty bridge. A faulty firing module (circuit board) can be replaced live. Alarms and indications are given for master fail and standby in operation. The charger unit and the battery stand / box are separate units ( see table for Battery Stand/Box sizes). The charger box is constructed in such a way that it is either free standing or wall mountable.

PABX DC-UPS BACKUP SYSTEM FR (Fully Redundant Unit)

Two completely identical units with extra electronic circuitry to allow full redundancy.

 DC Backup System for PABX


Made in South Africa

MODELS for Standard (ST) DC Backup System with external battery packs

Model Backup Time PABX Mod AC Input Current DC Output Voltage DC Output Current Size W x H x D in mm
Sine 1265/1ST 8 Hrs 1 4.0 Amps 54VDC 12 Amps 600 x 760 x 325
Sine 20100/2ST 8 Hrs 2 6.7 Amps 54VDC 20 Amps 600 x 760 x 325
Sine 30200/3ST 8 Hrs 3 10.3 Amps 54VDC 30 Amps 600 x 760 x 325
Sine 40200/4ST 8 Hrs 4 13.5 Amps 54VDC 40 Amps 600 x 760 x 325
Sine 70300/6ST 8 Hrs 6 23.6 Amps 54VDC 70 Amps 600 x 1000 x 325
Sine 70300/8ST 8 Hrs 8 23.6 Amps 54VDC 70 Amps 600 x 1000 x 325

MODELS for Semi-Redundant (SR) DC Backup System with external battery packs

Model Backup Time PABX Mod AC Input Current DC Output Voltage DC Output Current Size W x H x D in mm
Sine 1265/1SR 8 Hrs 1 4.0 Amps 54VDC 12 Amps 600 x 760 x 325
Sine 20100/2SR 8 Hrs 2 6.7 Amps 54VDC 20 Amps 600 x 760 x 325
Sine 30200/3SR 8 Hrs 3 10.3 Amps 54VDC 302 Amps 600 x 760 x 325
Sine 40200/4SR 8 Hrs 4 13.5 Amps 54VDC 40 Amps 600 x 760 x 325
Sine 70300/6SR 8 Hrs 6 23.6 Amps 54VDC 70 Amps 600 x 1000 x 325
Sine 70300/8SR 8 Hrs 8 23.6 Amps 54VDC 70 Amps 600 x 1000 x 325

MODELS for Battery Stands / Boxes - ST and SR System

Model Description Size W x H x D in mm Model Description Size W x H x D in mm
4BS35 Batt Stand for 4 x 12V/35Ah 405 x 980 x 220 BB4 Batt Box for 4 Batteries 800 x 500 x 500
4BS45 Batt Stand for 4 x 12V/45Ah 405 x 980 x 220 BB8 Batt Box for 8 Batteries 800 x 830 x 500
4BS66 Batt Stand for 4 x 12V/66Ah 380 x 980 x 300  
4BS102 Batt Stand for 4 x 12V/102Ah 380 x 980 x 355  
8BS102 Batt Stand for 8 x 12V/102Ah 355 x 980 x 750  

MODELS for Battery Eliminator (BE) Power Supply on battery pack required

Model PABX Mod AC Input Current DC Output Voltage DC Output Current Size W x H x D in mm
Sine 0717/1BE 1 2.5 Amps 48VDC 7 Amps 600 x 760 x 325
Sine 1265/BE 2 4.0 Amps 48VDC 12 Amps 600 x 760 x 325
Sine 20000/3BE 3 6.7 Amps 48VDC 20 Amps 600 x 760 x 325
Sine 20200/4BE 4 6.7 Amps 48VDC 20 Amps 600 x 760 x 325
Sine 30300/6BE 6 10.3 Amps 48VDC 30 Amps 600 x 760 x 325
Sine 40300/8BE 8 13.5 Amps 48VDC 40 Amps 600 x 760 x 325

TECHNICAL SPECIFICATIONS

Input Voltage 230VAC Input Range ± 15%
Input Frequency 50Hz ± 5Hz Output Voltage 54VDC (internally adjustable)
Output Regulation ± 1% Output Ripple < 0.3% at 100Hz
Communication 2mV Psophometric (referred to 800Hz) Metering DC Voltmeter & DC Ampmeter
Complies to Telkom specifications Indication AC Power on LED
Optional extras DC Under voltage Alarm DC Over voltage LED
Under voltage Load Disconnect DC Contactor (to prevent battery deep discharge) Cooling Convection
Parallel Operation  

Sinetech reserves the right to change specifications without prior notice


Home | Full Product List | EMail | Our Contact Details