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News

JetCon Ethernet switches used in road-side phone monitoring

Korenix Technology : 05 November, 2008  (Application Story)
Korenix equipment deployed in roadside emergency telephone network to provide rapid diagnostics and improved communications
Roadside emergency telephones are for use on public highways or private toll roads and can service remote areas where cellular systems are not commercially feasible. These phones are connected by twisted-pair cables to service centres. What the customer wants is to monitor each booth so engineers could immediately know if a booth was in use, in need of service, or being tampered with.

Emergency Phones are designed to provide quick and reliable hands-free communication over the public switched telephone network. The emergency phones were located at specific intervals along the highway. All booths were connected to an Ethernet network that ran the length of the highway.

The JetCon 6350 12-Ch DI + 4-CH DO Smart Ethernet I/O Converter was chosen as a small control unit for each site. The JetCon 6350 provided simple local device control for the alarm light, which would be automatically activated when the emergency push button is pressed. A door sensor and tilt sensor were also connected, so the JetCon 6350 could provide instant system notification when the door was opened or the booth was being tampered with. Finally, the JetCon 6350 was connected to a power reset switch for the entire booth, so the booth could be restarted by remote or local command if any equipment required service.
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