D.E.S.K. GPRS System

The D.E.S.K. GPRS Channel features: Supervised Two-way Wireless communication. No range limit. Operating from everywhere with GSM/GPRS coverage. Very fast Event transmission: 2-5 seconds for Event Transmission + Acknowledge from the Central Alarm Monitoring Station (CAMS) - comparable to 2-way Long Range Radio transmission. Much better that One-way Radio (for multiple messages) and Tel. Channel transmission speeds. All GPRS End Units are fully supervised. Supervision signal interval can be individually programmed into each End Unit (the GPRS Server is automatically updated with the data - by the End Unit). Very efficient message encoding allows 5 minutes Supervision signal interval with only 1 Mbyte/Month of total data traffic (including the TCP/IP overhead). Full End-Unit status report on each Supervision signal, including I/O status, Power & Battery status, and GSM Received Signal Strength (RSSI) at the End-Unit. Full Upload/Download of all Parameters and Status Request Report - over the GPRS channel. Remote Control of End-Unit outputs via the GPRS channel. Get More Info

The D.E.S.K. GPRS Server features:

• Can handle 2000+ GPRS connections (End-Units).
• Download/Upload from/to a selected End-Unit. All unit parameters can be Downloaded, viewed - and optionally altered and Uploaded back.
• Status Update from a specific End-Unit. Sending a Status Report request to a selected End-Unit. Received report includes all End-Unit I/O statuses, the Voltage reading at the Power Supply and the Battery inputs (Analog display), and an update on the RSSI and BER.
• Outputs Remote Control to a selected End-Unit: On/Off control of each Output.
• NO manual data-base updates required. All End-Units connection data is automatically updated at each new connection and Supervision "Alive" signal reception.
• RSSI (Received Signal Strength) History for each End-Unit:
  - Graphic display (selecting Start/End Date/Times);
  - Automatic alert on single drop below a specified threshold (with hysterezis);
  - Automatic alert for a gradual degradation in RSSI over time.
• General Display:
  - List of "Connected OK" and "Connection Failed" End-Units;
  - All arriving Messages and Supervision ("Alive") signals;
  - Connection and Queue status to the Automation Software
• Status display for each End-Unit connection (automatically updated data-base):
  - Unit type, Client ID number, IP address;
  - Received Signal Strength (RSSI) and Bit Error Rate (BER)(at the End-Unit side) - as received in the last "Alive" signal;
  - The "Alive" signal interval and number of missing "Alive" signals before a "Communication Lost" Event is generated for this Client - (received and updated from the End-Unit on each "Alive" signal);
  - Last received (Contact-ID) Event from the End-Unit (inc. Date/time);
  - Last received "Alive" signal Date/Time;
  - End-Unit Status (last status as received in the "Alive" signal), including: Outputs state, Input Voltage & Battery state, Box Tamper, Ext. Panel Connection status.
• Connection to Automation Software:
  - 2 Serial Comm. Outputs for Main and Backup connection;
  - Automatic switchover between the Main and Backup output when no acknowledge is received (toggled operation);
  - Standard Contact-ID messaging format.
• Hardware: standard PC with WinXP O/S.

The DESK End-Units (RTDs)

1. RTD-804G

Applications:

• Replacement for Two-Way and One-Way Long-Range Radio Communicator;
• General purpose Alerts Communicator (to Central Alarm Monitoring Station and user SMS).

Features:

• 8 individually programmable Inputs:
  - Polarity (N.C. or N.O.);
  - Contact_ID Event code, Group, Zone/User number;
  - Response time;
  - Transmission channel selection:
  - GPRS on Event
  - GPRS on Restore
  - SMS on Event (Select from 8 Tel. numbers(option))
  - SMS on Restore (Select from 8 Tel. numbers (option))
  - SMS text message definition (on Event + on Restore) (option).
• Box Tamper Input (N.C.)
• 4 Outputs for Remote Control:
  - 1 Change-Over dry contact Relay;
  - 3 open-collector, 1 Amp. Max.;
• Serial connection to our AP-4008 and AP-8016 Alarm Panels

2. RTD-804GP

Applications:

• Replacement for Two-Way and One-Way Long-Range Radio Communicator
• Replacement for Alarm Panels Cellular Adaptor

Features:

• All the features of the RTD-804G.
• Connection to ALL types of Alarm Panels: Telephone Line and Central Station Receiver simulation for the Panel . Messages received from the Panel are sent via the GPRS channel in Contact-ID format.
• Telephone Line monitoring and Failure report via the GPRS channel.
• Automatic switching of Tel. Line to the Panel in case of GPRS channel failure.
• GPRS channel Failure output - to be reported by the Panel on the standard Tel. Channel.

3. RTD-804GT

Applications:

• General purpose Alerts Communicator with Telephone Channel backup dialer (GPRS + Tel. Channel communicator to Central Alarm Monitoring Station + SMS to user phone).

Features:

• All the features of the RTD-804G.
• Tel. Channel dialer for backup.
• Telephone Line monitoring and Failure report via the GPRS channel.
• GRPS channel failure reported via the Tel. Channel.

4. RTD-804GT-24

Applications:

• Communicator with Telephone Channel backup dialer (GPRS + Tel. Channel communicator to Central Alarm Monitoring Station + SMS to user phone) - for 24 Volt equipped Fire Alarm Systems.

Features:

• All the features of the RDT-804GT
• 24 Volt operation (max. 30 VDC)

5. microNet-2002GT

Features:

• Integrated GPRS & Tel. Channel Alarm Panel (8-64 zones) - see our "microNet-2002" system description.
• Full Alarm Panel Remote Control via the GPRS channel.