Site Equipment Connectivity Options

Along with the standard telephone line interface, Hark Systems offers these options to enhance the application of the site equipment:

PDM300 PCS Modem                      

The PDM3000 PCS Modem is available in all carrier formats and provides a brilliant alternative to telephone line back haul communications.  The cost of operating a site improves dramatically by reducing the amount of repair that occurs from surge damage related to the phone line connection.

Features and Benefits:

* CDMA and GSM PCS Compatible
* Sends data over internet using TCP/IP
* Uses standard RS-232 connection 300 to 153k bps
* Over-the-Air programming and diagnostics

Download Information: PDM3000Modem

SDT 5000 Satellite Modem                                        

The SDT 5000 Satellite Modem is a great alternative when terrestrial wired or wireless services are not available. 

The SDT-5000 uses the world's most reliable fixed satellite wireless communications network. The rugged and easy-to-install pole-mounted modem ensures that no matter the conditions or location, full duplex wireless data communication between central offices and field assets will never be threatened.

In remote settings or difficult-to-access sites, acquiring and responding to process control and alarm data can be challenging and costly. The SDT-5000 provides a real-time, low cost, bi-directional data communication solution for applications in remote locations where telephone service is not available.

Features and Benefits:

* Cost competitive to standard telephone line service
* Satellite network for superior coverage
* Uses standard RS-232 connection
* Fully integrated into weather resistant package suitable for outdoor deployment
* Geosynchronous L-band satellite

Download Information: SatelliteModem

I/P Modem                       

The IP Modem is used where a TCP/IP Network connection is available. The IP Modem uses a TCP/IP socket for sending and receiving data via an intranet or over the internet. The IP Modem uses standard AT modem commands and is a drop-in replacement for the telephone line modem on any of our monitoring equipment.

In remote settings or difficult-to-access sites, acquiring and responding to process control and alarm data can be challenging and costly. The IP Modem provides a real-time, low cost, bi-directional data communication solution for applications in remote locations where an existing network infrastructure is available.

Features and Benefits:

* Sends data over internet using TCP/IP
* Uses standard DB-25 Serial and RJ-45 Ethernet connections
* Uses standard AT modem commands

Download Information: IPModem.pdf