Stratum 1 Synchronization Supply Units (SSU)
Building Integrated Timing Supplies (BITS)

StarClockTM TiemPo 6400 StarClockTM 200E StarClockTM 5800

CXR Larus recognized very early that Digital network connectivity is dependent upon the availability of a reliable synchronization source to provide a timing reference to the network elements and are now a recognized leader in the manufacture of sophisticated network timing and synchronization products, including meeting the requirements of the Next Generation Networks (NGN). The products provide a complete range of the timing and synchronization products required to facilitate the efficient transmission of Digital signals. CXR Larus timing products are deployed by Regional Bell Operating companies, Independent Telephone Companies, Competitive Local Exchange Carriers, government, utility companies,private communication networks, OEM manufacturers both domestically and internationally.

CXR Larus synchronization and timing products provide an optimal and consistent source of timing alignment (synchronization) for digital networks. When the principal network timing source is lost, a CXR Larus timing system can provide an alternative source of reference synchronization until the principal source can be restored. This is called operating in the "holdover" state. The various levels of accuracy in holdover mode are referred to as "stratum levels." Stratum 1 is the most precise, followed by Stratum 2, Stratum 2E ("Enhanced" Stratum 2), Stratum 3E, Stratum 3, and finally Stratum 4. All CXR Larus Timing products offer Stratum 3E holdover stability or better, and all are available with options that meet or exceed Stratum 1 standards.

A CXR Larus timing system is also known as a Building Integrated Timing Supply (BITS) or simply as a BITS clock. Whether the application is a small remote office, or the largest RBOC Central Office, CXR Larus has the perfect timing solution for your needs. CXR Larus is also a leading provider of Next Generation NTP/PTP Primary Reference Sources with the innovative line of StarSyncTM products.

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StarClockTM TiemPo 6400	StarClockTM 200E	StarClockTM 5800
NextGen Synchronization Timing System	Expandable Synchronization Timing System	GPS Stratum 1 BITS Clock
Flexible and cost effective solution for TDM and Next Generation Packet Timing applications Optional Stratum 1 GPS receivers available, can be fully redundant Up to 64 outputs (or 32 protected) from a 2U high chassis, with 5 software configurable inputs. Expansion Shelves available to provide up to 576 outputs Stratum 1 with Stratum 2E (Better than Stratum 2), or Stratum 3E holdover Output cards include Universal DS1/E1/CC/2.048 SQ (software programmable) Other output cards include IRIG-B, Time Code (1PPS/PPM/PPH), Retiming Insertion Unit (RTIU) Optional support for SNTP V4, Ready for PTP- IEEE-1588 V2 Optional SNMP and CXRLive TL1 Interface Fully NEBS Compliant	Fully scalable system for larger offices requiring full redundancy and "Five Nines" timing availability Up to 200 outputs (or 100 protected) oututs with master shelf, up to 3,062 outputs 1,531 protected) with 8 expansion shelves. Stratum 1 with Stratum 2 or 3E holdover available Wide variety of input and output cards available; DS1, E1, CC, 2.048 SQ, SNTP V4 Fully NEBS Certified . . . . . . . . .	For small office/remote and enterprise sites 2- DS1 Inputs 10- DS1 Outputs 10- CC Outputs 4- 1.544 kHz RS-422 Outputs Stratum 1 with Stratum 2 or 3E holdover available Also available as a clock distributor with no holdover . . . . . . . . . . .