home

order

email

profile

contact

 

 

 

  Software

   Hardware

   Consulting

   Services

   Forschung

   Innovationen

   Seminare

   Neues

   Referenzen

   Mitarbeiter

   Der Weg zu uns

   HD-Intern

 

 

  Software

   Hardware

   Consulting

   Services

   Research

   Seminars

   News

   References

   Our Team

   How to find us

  

 
 
 

Hardware

   
 
  Communication Units:

 

 
  Modems:Multiplexer:  
  Modems

Configuration

  • For ISS Seismometers the modem is a single plug-in card. 
  • For Seismic Controller or Multiplexer a modem rack/RS232 patch panel is used with one receive modem per channel and one common transmit/time-update modem per rack.

Description

The Seismic Controller is linked to the ISS Seismometers via asynchronous serial communication lines. The ISS modem and patch panel racks are adapted to the special needs of time synchronization and command broadcasting from the Seismic Controller. 

  • FSK using 4-wire copper lines at 9600, 19200 or 38400 bps 
  • RS232 with optical fibre, leaky feeder or digital radios can be used with standard equipment supporting RS232 
  • RS485 with support for multiple ISS Seismometers on a single pair of copper 
  • Dialup via fixed or mobile telephone (SAQS) 
  • See also Intelligent Multiplexer datasheets. 

 

Intelligent Multipexer

Description

The Intelligent Multiplexer (IM) provides a means for condensing the data from a number of stations in an ISS network onto one single communication link. This is useful when the number of communication lines are limited. The unit is equipped with a modem rack and modems to communicate with the ISS stations. 

Characteristics 

  • Number of ports 8 or 15 
  • Max data rate/port 38400 
  • Connection to central computer (115 kb/s max) 
  • Power supply 110-220 V 
Environment 
The unit is designed to function in the harsh environment of underground mining. 

Ordering Information

IM/8 Standard version 8 ports 
IM/15 Standard version 15 ports 
 
 
   
  HarbourDom GmbH 2012             impressum