ATCA-F140-TCLK3 Information
ATCA-F140 Series Installation and Use (6806800M67S)
129
A BITS is typically an output-only device that provides a precision timing reference, known
as the T[3] clock, to shelf-level products that use this for synchronizing the local telecom
clocks. An SSU is similar to a BITS but can in turn synchronize itself to a linecard derived
reference known as a T[4] clock.
The ATCA-F140-TCLK3 provides dual T1/E1 interfaces to support both BITS and SSU
operation. The following figure illustrates the clock flow in a system employing a BITS or
SSU.
A.4
Ordering and Support Information
The data sheet for the ATCA-F140-TCLK3 contains a complete list of available blade
variants and blade accessories. Refer to
Appendix C, Related Documentation
or consult
your local SMART Embedded Computing sales representative for the availability of other
variants.
For technical assistance, documentation, or to report product damage or shortages,
contact your local SMART EC sales representative or visit
https://www.smartembedded.com/ec/support/
Figure A-3 BITS/SSU Clock Flow
