• 

  Syncom 1, 2, 3

  http://space.skyrocket.de/doc_sdat/syncom-1.htm

  Gunter's Space Page - Information on Launch vehicles, Satellites, Space Shuttle and Astronautics

• 

  CIPE Manual: Protocol descriptions

  http://sites.inka.de/sites/bigred/devel/cipe-doc/cipe_6.html

  CIPE Manual: Protocol descriptions

---

---