jeudi, 31. mai 2007 Isolating repeaters for fiber optic lines enter the ring in zone 1
Catégorie : Product-NewsISpac 9186 integrates Profibus DP and other signals into highly available networks
ISpac 9186 type isolating repeaters
for fiber optic lines feature
integrated signal level monitoring
and can be used to install redundant ring
structures in zone 1
Waldenburg – R. STAHL’s new ISpac 9186 line of isolating repeaters for fiber optic lines serves to connect Profibus DP, Modbus, HART RS-485 and R. STAHL Servicebus signals. The units are suitable for hazardous areas (Ex zone 1) and can be used to implement redundant ring structures. They enable the bridging of wide distances in large plants via fiber optic lines. If required, users can also implement point-to-point or daisy chain networks. The isolating repeaters feature Ex op is and RS 485-IS (intrinsically safe) ports. Thanks to the intrinsically safe optical and electrical interfaces, all cables can be installed, disconnected, exchanged and reconnected on location in the field during operation. Another striking feature ensures easy diagnosis: LEDs at the unit's front side constantly display the optical signal level, which allows users to detect impending failures of transmission lines in due time. Moreover, the isolating repeaters generate an alarm via a potential-free contact if the signal strength drops below a critical threshold. The devices are classified according to Ex II 2 (1)GD EEx e mb ib [ia, op is] IIC T4. Apart from models suitable for zone 1, R. STAHL also provides isolating repeaters for zone 2 and safe areas. The units are designed as system components – as such, they complement R. STAHL's other solutions for connecting field devices. Supporting a large number of fieldbuses, they enhance the flexibility and applicability of especially the IS1 remote I/O system.
Contact:
R. STAHL
Kerstin Wolf
Am Bahnhof 30
74638 Waldenburg
Germany
Tel.: +49 7942 943 4300
Fax: +49 7942 943 404300
email: kerstin.wolf@stahl.de
WWW: http://www.stahl.de