D-logo.gif (3033 bytes)  Dryden Communications (Pty) Ltd.

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Dryden Communications (Pty) Ltd. has been supplying Telecommunications Equipment to the Mining, Telecommunications, Banking and various other industries over the past years.  We have a very wide range of products to choose from.  Listed below are some of the products which we can supply.

STEDCOM TELECOMMUNICATIONS cc

FLAMEPROOF
TELEPHONE

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PANZERFON

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ABECOMSA

DISPLACEMENT CONNECTORS
Description:
Insulation displacement connector for insulated communication cable conductor joints.

Application:
Any combination of 2 or 3 wires from 0,4 to 0,91 mm. diameter with a maximum diameter measured over the insulation of 2,10mm.

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BARGOA

MAIN DISTRIBUTING FRAMES


COMPACT MAIN DISTRIBUTING FRAMES - BARGOA STANDARD
Frames provided with IDC quick connect technology allowing dramatic time savings due to absence of insulation removal operations. The system also provides additional protection for the connection against aggressive environments.

M-10B and M-8B Terminal Blocks are used in this configuration. The following types are available: Continuity (Permanently closed), cut off and permanently open.

Terminal Block may be fitted with surge protection devices of several technologies as solid state, gas tubes with heat coils or PTCs.

Accessories like sealing covers, label supports, pairs identifiers, insulator markers, test chords, etc are also available.
Up to 800 pairs in a 2.400 mm (7ft 10 in) high structures are possible.

M10-FC Tool
Developed specifically for Bargoa quick connection blocks. Its purpose is to insert the wire for perfect connection as well as further maintenance through accessories joined to its handle.

Manufactured from engineering plastic and high quality steel its covered by permanent service in the whole Brazilian territory.

UR and UY Pliers
Extremely strong they allow over 600.000 connections without wearing out.

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Visit their Web Site: http://www.bargoa.com.br

AVIALEC, S.L.

As leading manufacturers of Video and Data monitors, AVIALEC, offers you the widest range of products with many options of different cabinets and features to fit any particular need.   AVIALEC is always willing to provide you with expert assistance on any special projects you may have and manufacture special equipment for any specific need.

AVIALEC offers the widest range of video monitors on the market with multiple options of connection and style and with a top quality finish.

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The ALBIRAL SVGA monitors are user-friendly and provide a high image quality allowing simultaneous display on both the computer's monitor and the large screen monitor.

The 510/710 series have been designed using completely digital technology. The monitors provide a microprocessor able to store the different parameters and recall them when switching the monitor on.

MAIN APPLICATIONS
Visual Display Systems For Multi-Store Retail Organizations
Transport Information Display Systems (Airports, railways, etc)
Financial Displays
Training, Education and Software Demonstrations
Video-Games

Visit their Web Site: http://www.avialec.com

BYTECOM

LINALYZER is a single phase Mains supply analyser combined with software to provide non specialists with an efficient and highly performant decision aid related to electricity supply misbehaviour and energy cost analysis. The LINALYZER was honored to be selected as a finalist of the " Best of CeBIT95 Award ". 

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The technical performances of this measurement tool that works in relation with a battery powered DOS PC are oriented towards European Mains supply characteristics: 200 VAC - 50 Hz. The LINALYZER electronic circuitry makes 100 measurements per cycle (5000 measurements per second) about Mains voltage and current. Information is accurately time stamped. All significant energy fluctuations such as drops, breaks and spikes amplitude and duration as well as eventual presence of high frequency noise reaching a perturbant level are registered.

The LINALYZER control software is very user friendly. Communication is actually performed in English, French, Dutch, German, and Spanish. The information sent via the serial port of the PC is displayed and collected in a spreadsheet compatible format. Measured data is analysed and significant results are interpreted in practically oriented jargon free corrective suggestions. Competent users can later make use of any popular spreadsheet program to list measured values, select elements of interest and perform more in depth analysis including graphics.

Visit their Web Site: http://www.bytecom.be

ALBERT EGER GmbH & Co.
Product Description: Paper Sleeves for cable joints (Telecom).

992022 - Sleeve, paper for 0,4mm copper cable conductor.Size: 2,0 x 2,6 x 50,0 mm
992023 - Sleeve, paper for 0,5mm copper cable conductor.Size: 2,3 x 2,9 x 50,0 mm
992024 - Sleeve, paper for 0,63mm copper cable conductor.Size: 3,0 x 3,6 x 50,0 mm
992026 - Sleeve, paper for 0,9mm copper cable conductor.Size: 4,0 x 4,6 x 50,0 mm
992027 - Sleeve, paper for 1,25mm copper cable conductor.Size: 5,5 x 6,5 x 50,0 mm
Sleeve, paper, for 1,27mm copper cable conductor.Size: 6,0 x 7,0 x 60,0 mm

Visit their Web Site: http://www.eger-huelsen.de

         Digital Interactive Solutions

Our extensive product range includes single, dual and multi tape subsystems based on DLT, AIT, MLR, Mammoth and 3590 drives, Fibre channel and Storage Area network products, SCSI extenders for remote operation of disc and tapes and SCSI switching and SCSI Converter solutions.  Our tape encryption unit Paranoia designed to ensure security of data to tape whatever the host platform.

Products
  produces a wide range of connectivity and storage devices across a wide range of host platforms. Products include DLT, AIT, Mammoth and 3590 based tape devices, SCSI extenders up to 90 Km, on the fly tape encryption, crossbar switches up to 16 x 12 and now a range of fibre channel devices.

Paranoia In line tape encryption unit

The Paranoia is a hardware data encryption unit designed to encrypt / decrypt data on the fly between a host system and a high speed SCSI tape drive. The unit is designed to provide a high level of data security for tape data in vaulted storage or when it a shared tape silo application. It is designed for use in an unattended backup environment. Where large amounts of data need to be physically transferred between sites two Paranoia units are used to unsure the data security whilst the tapes are in transit.

Visit their Web Site: http://www.digital-interact.co.uk

SystemBase
Digital Audio Codecs

PROFESSIONAL QUALITY AUDIO
The C400xr and C310xr digital audio codecs, have been designed and manufactured by Systembase to deliver unparalleled performance for professional, real-time audio applications. Both models incorporate the fast apt X100 Sub Band ADPCM compression system with a coding delay of only 3.8ms.

Additional design enhancements based upon the use of a 20 bit conversion process, have extended the audio bandwidth by almost 900Hz, resulting in a much richer natural sound.

REAL-TIME BI-DIRECTIONAL OPERATION
Systembase codecs incorporate both an encoder and a decoder, to provide a real-time, full duplex audio circuit. The short coding delay of 3.8ms at 32KHz sampling rate, makes them suitable for bi-directional applications such as outside broadcasts (OB’s), studio to transmitter links (STL’s) and remote voice-overs. In addition, the integral ISDN inverse multiplexer, used to synchronise up to four ISDN B Channels, introduces a delay of just 0.5ms.

CASCADE AND TANDEM CODING
Systembase codecs allow cascade or tandem coding of audio with minimal degradation in quality. This feature is essential when contributing to Digital Audio Broadcast (DAB) radio or television stations using MPEG technology. In both cases, the use of psycho-acoustic compression, limits the number of times the audio signal can be encoded and decoded with a similar type of algorithm, before audible artefacts occur. This problem is overcome by Systembase codecs, which introduce a minimal I.7dBm of quantisation noise following each encode/decode cycle.

INTELLIGENT FEATURES
In the event of an ISDN call failing, the codecs will automatically drop down to provide the next best available service with the remaining connected calls. The user can configure the codecs to prioritise between bandwidth or stereo image. When operating in Mono, they have the capability of monoising the left and right input audio channels, and provide a pseudo stereo service to both the left and right outputs. In Dial-on-Audio, Trigger Dial or ISDN Backup modes, the codecs will automatically re-dial the ISDN lines if a call fails or disconnects.

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REMOTE MANAGEMENT
Remote management facility is provided as standard, and enables full remote control and re-configuration via a computer. Multiple units can easily be linked together using a simple daisy-chain topology, and controlled centrally from a single computer. There are no limitations on the number of units that may be connected together. A codec unit at a remote or unattended site can readily be controlled by using standard analogue modems.

C450xr Specification

c400xr front

KEY FEATURES:
World-wide ISDN Operation (13 International ISDN Standards on-board)
22.7KHz Stereo Over X.21 at 384Kbps
15.6KHz Stereo Over ISDN 4 x 64Kbps
Real-time Applications - 3.8ms Coding Delay
22.7KHz Mono Over ISDN 3 x 64Kbps
2 x 3.9KHz Mono Over ISDN 64Kbps
20 Bit A/D & D/A Conversion
AES/EBU Digital Interface with Sample Rate Conversion
2.4 / 4.8 / 9.6 Kbps Auxiliary Data Port
20 Bit VU Meters
Bi-directional Operation
Full Remote Management Facility
External Trigger Dial of ISDN (Contact Closure input)
Dial on Audio / Hang on Silence (Dial ISDN on Detection of Audio)
Studio to Transmitter Link with Fully Automatic Backup/Restore on ISDN
Selectable input monoising facility with left/right output duplication
26 Configuration Memories / Stores
1U Compact Rackmount Enclosure
Auto-ranging power supply
All Features Supplied as Standard

Visit their Web Site: http://www.systembase.com

 

THANK YOU FOR VISITING OUR WEB SITE

DRYDEN COMMUNICATIONS (PTY) LTD
P.O. BOX 62510
MARSHALLTOWN
2107
SOUTH AFRICA

TELEPHONE NUMBER: + 27 11 493-5566
FACSIMILE NUMBER: + 27 11 493-2819
E-MAIL ADDRESS: drydencom@dryden.co.za