The collected works of FaileasGrey

i got one of these cables , and it has 3 possible settings for SGI- SGI COMP. SYNC OUT SGI HV. SYNC OUT and SGI SYNC ON GREEN OUT ( in addition to some dip switches being labelled ON OFF in the guide... Wondering if anyone has used one of these, and what the modes other than sync on green out are, and how a dip switch cn be on and off at once?