Project Title

Proximity-1 Space Link Protocol—Data Link Layer - Issue 5



Document Number



5.04 Space Link Protocols Working Group

Document Type


Description of Document

When the following CCSDS Link Layer documents are due for their mandatory 5-year review. Note - the review of each document depends upon the last issue date. The document under current review is the Prox-1 Space Data Link protocol (the C&S WG is also reviewing the Sync and channel Prox-1 book.) The RF&Mod WG is reviewing simultaneously the prox-1 Physical layer.

Applicable Patents

There are no patent issues for this technology that are known by the CCSDS community

Patent Comments

There are no patents envisioned in this WG

Survey of Similar Standards
Documents or Projects
Undertaken in Other Bodies
and elsewhere in CCSDS


Book Editor


Book Editor Resources

Heavy Technical work of reviewing and updating the document has taken place. Next effort involves resolving RIDs (anticipated to be around 10 or so) from the current agency review and making appropriate changes to document concurred by WG. Level of effort is .1 FTE from July 2012 to Nov 2013.

Prototype 1

Not Required

Prototype 1 Resources

NASA has already implemented Proximity-1 in CE 505 and Electra transceivers. This project is adding no new feature requiring prototypes.

Prototype 2

Not Required

Prototype 2 Resources

ESA has already implemented Proximity-1 in Melecom transceiver. This project is adding no new feature requiring prototypes.

Prototype 3

Prototype 3 Resources



Monitor Only


Resource Comments


Legend for Schedule Milestones
Orange Bullet = Required for Orange Books
Green Bullet = Required for Green Books
Magenta Bullet = Required for Magenta Books
Blue Bullet = Required for Blue Books
Note - Red Books are Draft Blue/Magenta Books

Schedule Milestones
Orange BookGreen BookMagenta BookBlue Book
Original Completion Date
(Date in M/D/YYYY format.)
Estimated Completion Date
(Date in M/D/YYYY format.)
Actual Completion Date
(Date in M/D/YYYY format.)
(Date in M/D/YYYY format.)
Project ApprovedOrange BulletGreen BulletMagenta BulletBlue Bullet12/15/200912/15/200912/15/2009
Project Start DateOrange BulletGreen BulletMagenta BulletBlue Bullet12/15/200912/15/200912/15/2009
Internal WG Review
First Draft Circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet4/15/20105/25/20105/25/2010
First Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet4/26/20106/26/20109/27/2010
Second draft circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet6/15/20109/1/20119/15/2011
Second Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet8/30/201010/1/201112/15/2011
Final WB Submitted to AD for Further ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet9/15/201010/15/20112/1/2012Pink Book
External Milestones
Secretariat Document ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet9/30/20103/15/20123/19/2012Agency review started on 19 March 2012, ending 1 June 2012
First Agency ReviewMagenta BulletBlue Bullet10/15/20106/1/20126/1/2012RIDs collected
RID ResolutionMagenta BulletBlue Bullet12/15/20104/30/201310/30/2013Delayed by discussion on (P)ICS
Secretariat Document Processing 2Magenta BulletBlue Bullet1/15/201110/15/201311/25/2013CESG-P-2013-11-006
Final Agency ReviewMagenta BulletBlue Bullet2/1/201111/25/2013NOT needed
RID ResolutionMagenta BulletBlue Bullet3/1/201111/25/2013NOT needed
First Prototype DevelopmentBlue Bullet12/1/201011/25/2013NOT neeeded. No new features.
Second Prototype DevelopmentBlue Bullet5/1/201111/25/2013NOT neeeded. No new features.
CMC ApprovalOrange BulletGreen BulletMagenta BulletBlue Bullet5/1/20112/15/20141/6/2014CMC-P-2013-12-005 APPROVED
Total Time to Complete
(in months)
Version: 236.0
Created at 12/2/2009 5:54 PM by Kazz Greg
Last modified at 4/6/2014 8:20 PM by CCSDS Tech Support