BS 7917 : 1999 Caledonian Catalogs
(https://70qhxw.dm1.livefilestore.com/y2pyU5U9x01LNvxjn_Dilxp5HZuvAPBdeZWO5uYiIQYYSE3gDwaEIx8QAa9AsJUMEQH__LB2SO8KiJK6mi7lTwQ_wo28W1IM4uEjiGc7mYLRdk/4151411.jpg?psid=1)
http://www.youblisher.com/p/762847-CALEDONIAN-BS6883-wwww-forum-cabledatasheet-com/
https://skydrive.live.com/#!/view.aspx?cid=A212A7DB96D6B5B0&resid=A212A7DB96D6B5B0!924&app=WordPdf