(click on the equipment images)
The Huguenot-tunnel is a two-lane carriageway of 3913 metres. There is two way, leftside driving traffic. The main control centre is 6 km from the nearest end of the tunnel (Western portal, Cape Town).
It extends the N1 through the Du Toitskloof mountains that separate Paarl from Worcester, providing a route that is safer, faster (between 15 and 26 minutes) and shorter (by 11 km) than the old Du Toitskloof pass travelling over the mountain.
Geological surveys and design started in 1973, and excavation followed in 1984, tunneling from both ends using drilling and blasting. The two drilling heads met with an error of only 3 mm over its entire 3.9 km length. The tunnel was finally opened on 18 March 1988.
N-8000 system components
N-8010MSY Standard Master Station
The N-8540DS is an IP door station employing packet audio technology. Connecting the N-8540DS to an IP network (LAN or WAN) permits hands-free conversation of high sound quality to be made between the N-8540DS and the intercom station connected to the IP Intercom Exchange, or between the N-8540DS and an IP multifunctional master station. Besides, the N-8540DS can be used in conjunction with the Multi Interface units through a network. It is in full conformity with IP54 water-proof and dust-proof standards. The operating temperature range is -10 to 50?. As provided with guard nets inside to cover over the openings of microphone and speaker, the N-8540DS can be installed free from care in public space.
The N-8540DS supports the AID system which also provides video image processing to detect following conditions:
Slow moving traffic
2 x N-8540DS