These are some good links that I referenced before:
http://www.x-h2o.com/threads/21863-Port-Timing-amp-Duration-Specifications
http://www.x-h2o.com/threads/126930-760-help
http://www.x-h2o.com/threads/21863-Port-Timing-amp-Duration-Specifications
http://www.x-h2o.com/threads/126930-760-help