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SecurLAN Protected Distribution Systems (PDS)
National Security Telecommunications and Information Systems Security Instruction (NSTISSI) No. 7003, Protective Distribution Systems (PDS), provides guidance for the protection of SIPRNET wireline and optical fiber PDS to transmit unencrypted classified National Security Information (NSI).
According to the regulations, PDS can be used in lieu of encryption, and as such is a less expensive method of securing vital and sensitive data when compared to the cost of installing COMSEC devices. Most importantly, PDS is a requirement when routing through lower level Limited Control Areas (LCA’s), and especially when encryption is not utilized. To use an alarmed carrier as a "Hardened" Distribution System, the carrier should be protected by an alarm system approved by the cognizant COMSEC and/or physical security authorities. SecurLAN meets all of these military requirements, and is known as the “Alarmed Carrier”.
Fiber SenSys designs, manufactures, and markets solutions for intrusion detection and motion detection using innovative fiber-optic sensor technology. The basis for our solution is a physical network security fiber-optic sensor that detects movement, vibration and pressure. For SIPRNET, SCI and JWICS classified government networks, an alarmed carrier PDS based on fiber-optic sensors meets all the technical requirements of the certifying authorities (CA’s), and is particularly valuable for areas of PDS that cannot be visually inspected (i.e.: behind walls, under floors and above ceilings).
From a technology perspective, it is widely believed that optical fiber transmission is inherently secure. However, it has now been shown that it is relatively easy to "tap" information out of an optical fiber with negligible interference to the optical signal. Hand-held coupling devices, originally designed as testing tools, are commercially available and can easily be employed by those wishing to engage in information theft. To detect physical taps in optic networks, Fiber SenSys has designed an alarm system that protects against the "insider threat".
Also, as a tool for network diagnostics, utilizing a physical intrusion detection network security sensor can help determine if a threat is cyber (logical) or physical - and thereby accelerate the identification and investigation of the network problem. This is also known as a "Protective Distribution System". Since 1997, Fiber SenSys has installed hundreds of PDS systems in the federal marketplace, and our goal as the manufacturer is to ensure that we build the most cost-effective and reliable PDS alarm system available, one that integrates seamlessly into our customers’ networks.
The SecurLAN Alarmed Carrier has been tested and approved by the USAF Certified TEMPEST Technical Authority, and has been deployed by the USAF at Tinker AFB, Langley AFB, Scott AFB, and in all of the PACAF bases. Additionally, SecurLAN has been certified by SPAWAR for use in US Navy PDS applications.
SecurLAN is manufactured and installed in compliance with following military guidelines and regulations:
- NSTISSI 7003
- AFPD 33-2
- AFMAN 33-221
- AFMAN 33-201
- AFI 31-101
- AFI 33-210
- AFSSI 7703 (Pending)
- NAVSO IA Pub 5239-22 U.S. Navy
- U.S. ARMY AR25-2
- U.S. ARMY SIPRNET Technical Implementation Criteria / Oct. 2010
Please contact us for additional information.





SecurLAN Protected Distribution Systems (PDS)






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