Jens Wehrmann has kindly sent me a detailed description of the camera positions on the truss, listed below. Some stanchions carry the ETVCG external cameras, but some just carry WETA comm relays for wireless video (such as the spacewalk helmet cameras) as well as UHF and S-band comm relays. At CP2 is a stanchion carrying the Floating Potential Measurement Unit (FPMU) which monitors electrical charging. Location Stanchion Carrying: Previous installed location: CP1 S3 aft 2007 Jun 17 (for WETA) ESP-2 CP2 S1 outboard, zenith 2006 Aug 3 FPMU ESP-2 CP3 S1 outboard, nadir 2002 Oct 10 ETVCG S1 stbd keel pin CP4 S1 inboard, zenith - CP5 S1 inboard, nadir - CP6 P1 inboard, zenith - CP7 P1 inboard, nadir 2007 Jul 23 - ESP-2 CP8 P1 outboard, zenith 2002 Nov 28 WETA P1 port keel pin CP9 P1 outboard, nadir 2005 Nov 7 ETVCG ESP-2 CP10 P3 aft - CP11 (Node 2 nadir) - CP12 Node 1 zenith 2002 Nov 16 WETA P1 stbd keel pin CP13 Lab zenith, starboard 2002 Oct 12 ETVCG S1 port keel pin CP14 (Node 3 stbd. forward) - There is also a set of CETA lights for the spacewalk equipment carts, near but not at CP5, installed 2003 Apr 8. Thanks Jens!