Computer/Embedded Technology


System controls and monitors telephone exchange temperature

19 November 2003 Computer/Embedded Technology

The main part of any telephone system is the telephone exchange, and its function is to maintain the proper environmental conditions for the system's sensitive devices. Temperature, for instance, is one of the most important environmental parameters that telephone companies have to take into consideration.

An efficient temperature monitoring system has to 'know' the temperature everywhere in the telephone exchange room. Data concerning temperature values has to be sent to various points, such as the operators of relevant airconditioners and the general control centre. Furthermore, the system has to control and monitor the airconditioners and any malfunction must be detected. In addition, the monitoring system has to be very flexible and easy to modify to facilitate future expansions.

The main part of the temperature monitoring system consists of several ADAM-4011D thermocouple input modules with LED displays, which are mounted across the telephone exchange cabinets. Every ADAM-4011D unit is linked through an RS-485 network to a panel PC wall-mounted in the room. The ADAM-4001D units are supplied by an independent power source and every digital alarm output is connected to an independent system of sirens and alarm lights, which guarantee efficiency even during computer system failures.

The panel PC is a touch screen PPC-102T bundled with VisiDAQ software. Its main function is to collect data from every ADAM-4011D unit and display temperature information on the screen. Authorised operators easily set or change alarm parameters by using the touch screen.

The ADAM-4050 digital I/O modules formed the second part of the system and are located in a different room to monitor the airconditioners. The ADAM-4050 units detect every alarm and have some primary control capabilities, such as 'start', 'stop', 'temperature down/up'. In this room an additional PPC-102T unit facilitates user-friendly monitoring and control.

In the top flow, a PPC-140T panel PC enables monitoring of the entire system and maintains the proper temperature in the telephone exchange room. All panel PCs are connected by 100 MB Ethernet with IPX/SPX protocol, which allows data exchange between the three parts of the system.

The solution, based on the ADAM modules, panel PCs and the VisiDAQ software package, provided a complete system which can be easily modified and upgraded.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Mini PCIe reference design for MIL-STD-1553
25 March 2020, ASIC Design Services , Computer/Embedded Technology
Holt Integrated Circuits introduced a new dual-channel development kit and complete reference design based on the popular HI-2130LBx MIL-STD-1553 fully integrated terminals. The kit includes a full-size ...

Read more...
Compact fanless PC for harsh environments
25 March 2020, Brandwagon Distribution , Computer/Embedded Technology
Compulab’s Airtop3 is a ruggedised, small-form-factor fanless IoT edge server with optimised performance, features and cooling. The ruggedised aluminium case is specially designed to generate natural ...

Read more...
Waterproof touchscreen keyboard console
26 February 2020, Brandwagon Distribution , Computer/Embedded Technology
The industrial IP65-rated keyboard console from Digisign features a high-performance fanless processor and a user-friendly IP65 touch monitor, making it a modern solution for industrial automation and ...

Read more...
NVIDIA-powered computing for AI at the edge
26 February 2020, Altron Arrow , Computer/Embedded Technology
The AI revolution is transforming industries, reaching products that are smaller and more affordable than ever before. Many companies have been constrained by the challenges of size, power, and AI compute ...

Read more...
Silicon Labs makes µC/ RTOS open source
26 February 2020, NuVision Electronics , Computer/Embedded Technology
Silicon Labs has announced a new open-source licensing model for the Micrium µC/ family of RTOS (real-time operating system) components. By adopting permissive licence terms for the µC/ components, the ...

Read more...
Silicon Labs makes µC/ RTOS open source
29 January 2020, NuVision Electronics , Computer/Embedded Technology
Silicon Labs has announced a new open-source licensing model for the Micrium µC/ family of RTOS (real-time operating system) components. By adopting permissive licence terms for the µC/ components, the ...

Read more...
Rugged single-board computer
25 November 2019, ETION Create , Computer/Embedded Technology
ETION Create released the 2nd in its family of 3U OpenVPX COTS modules. The VF370 3U OpenVPX single-board computer (SBC) is based on the Intel Atom E3900 series of embedded processors and Intel Cyclone ...

Read more...
Signal recorder for military intelligence
25 November 2019, Rugged Interconnect Technologies , Computer/Embedded Technology
A new addition has been made to the family of Talon signal recording and playback systems from Pentek. The RTR 2654 26,5 GHz RF Sentinel intelligent signal scanning rackmount recorder combines the power ...

Read more...
3-channel RGB LED lighting shield
25 November 2019, Altron Arrow , Computer/Embedded Technology
The XMC 3-channel RGB LED lighting shield from Infineon Technologies is an evaluation board compatible with Arduino as well as Infineon’s XMC1100 Boot Kit. It is designed to be easily configurable and ...

Read more...
Solderless robotics kit for university education
25 November 2019, Avnet South Africa , Computer/Embedded Technology
Texas Instruments introduced the newest addition to the TI Robotics System Learning Kit (TI-RSLK) family, the TI-RSLK MAX, a low-cost robotics kit and curriculum that is simple to build, code and test. ...

Read more...