[Intl-associates] CCSDS Document Publication Announcement (SLE-Related Recommended Standards)

[Stephen Harris]

The following five CCSDS Recommended Standards have been approved for use
and placed online at the CCSDS home page:

CCSDS 911.1-B-2.  Space Link Extension - Return All Frames Service
Specification.  Blue Book.  Issue 2.  November 2004.

This Recommended Standard defines the Space Link Extension (SLE) Return All
Frames (RAF) service in conformance with the SLE Reference Model.  The RAF
service is an SLE transfer service that delivers to a mission user all
telemetry frames from one space link physical channel.


CCSDS 911.2-B-1.  Space Link Extension - Return Channel Frames Service
Specification.  Blue Book.  Issue 1.  November 2004.

This Recommended Standard provides a basis for the development of real
systems that implement the RCF service.  Implementation of the RCF service
in a real system additionally requires the availability of a communications
service to convey invocations and returns of RCF service operations between
RCF service users and providers.


CCSDS 911.5-B-1. Space Link Extension - Return Operational Control Fields
Service Specification.  Blue Book.  Issue 1.  November 2004.

This Recommended Standard defines the Space Link Extension (SLE) Return
Operational Control Fields (ROCF) service in conformance with the SLE
Reference Model.  The ROCF service is an SLE transfer service that delivers
to a mission user all operational control fields from one master channel or
one virtual channel.


CCSDS 912.1-B-2.  Space Link Extension - Forward CLTU Service Specification.
Blue Book.  Issue 2.  November 2004.

This Recommended Standard defines the Communications Link Transmission Unit
(CLTU) service in conformance with the transfer services specified in CCSDS
910.4-B-1, Cross Support Reference Model-Part 1: SLE Services. The Forward
CLTU service is a Space Link Extension (SLE) transfer service that enables a
mission to send CLTUs to a spacecraft.


CCSDS 912.3-B-1.  Space Link Extension - Forward Space Packet Service
Specification.  Blue Book.  Issue 1.  November 2004.

This Recommended Standard defines the Forward Space Packet (FSP) service in
conformance with the transfer services specified in CCSDS 910.4-B-1, Cross
Support Reference Model―Part 1: SLE Services. The FSP service is a Space
Link Extension (SLE) transfer service that enables a mission to send Space
Packets to a spacecraft in sequence-controlled or expedited mode.


These documents are available in Portable Document Format (PDF) for viewing
and download at the following URL:

http://www.ccsds.org/CCSDS/recommandreports.html

Stephen L. Harris
Senior Technical Writer
CCSDS Secretariat Support Office
BTAS, Inc.
1 301 474 5424 (office)
1 301 474 5427 (fax)
stephen.harris at btas.com