The Optical Networking and Communication
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Los Angeles, California, USA

Compact Optical Switch, CSW series switches the optical paths in the physical layer without interrup

Exhibitor News



Compact Optical Switch, CSW series switches the optical paths in the physical layer without interrupting network services

NTT Advance Technology Corp. (hereinafter: NTT-AT; head office: Shinjuku-ku, Tokyo; President and CEO: Takashi Hanazawa) launchs CSW series, a compact model of our existing brand NSW series. The CSW series brings dedicated protection switching to optical networks for a reasonable cost. NTT-AT’s optical switch unit NSW series is a new style of network solution that switches pathways instantly in the “physical layer.” In addition to the functions of physically selecting, combining, and disconnecting the pathways of optical signals, NSW lets you enjoy the convenience of an Instantaneous, Automatic, Transparent, and Remote Controlled system. 24 hours a day, 365 days a year operation service and remote location operation brings a huge benefit to telecommunication enterprises. Since the single point link to other communication enterprises and equipment and transmission path of your side of a network can be transparently and simply duplicated, the resulting high availability hot standby redundant structure is especially advantageous. There is also the sense of security of being able to cut connections physically, and a reduction in the risks of damage and loss due to problems such as packet storms. In other words, this optical switch unit is an automatic patch panel. Addressing the weak link in mission critical service of poor measures in the physical layer brings dramatic improvement in operations.

Features of CSW Series
  • Regular surveillance of optical power and physical switching to instantly restore networks
  • Dramatically cut network downtime by switching in the physical layer
  • Realizes an extraordinary availability of over 1MF!
  • CSW’s automatic switching of the optical paths greatly reduces the network operating cost
  • Passive optical device puts top priority on Fail-Safe operation
  • Because it is a passive(transparent) device, even in the case of a power outage, the network communication itself is not affected
  • Also, the CSW brings high flexibility, applicable to all types of optical transmission, regardless of the communications protocol.
Product Specifications
  • Size (mm): 266 (W) x 150 (D) x 42 (H)
  • Optical Switching Time: 10 msec (max)
System Management: Web GUI, SNMP, Telnet, CLI

About NTT-AT
NTT Advanced Technology Corporation (NTT-AT), a subsidiary of NTT, the largest telecommunication company in Japan, has been playing a key role in the industry as a technology integrator by offering high quality and innovative technology to the global market. NTT-AT is a supplier of reliable and cost effective, leading-edge fiber optic products including a large selection of industry standard fiber connector cleaners. NTT-AT is committed to supplying optimum solutions with its deep experience and industry expertise for the tomorrow’s networking society. Contact International Business Division (Tokyo, Japan) phone: +81 3 5843 0927 US Office (San Jose, CA) phone: +1 408 392 4280 email: URL:

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