Security Station One
From Halopedia, the Halo wiki
Security Station One is a generic United Nations Space Command term for one of the security stations of an Orbital Defense Platform.
Cairo Station Security Station One
Cairo Station Security Station One was a United Nations Space Command security station aboard Cairo Station. During the First Battle of Earth, Covenant boarders invaded and took the security station. The UNSC coordinator can be heard on the loudspeaker announcing its' takeover.