when racking my ups do I need to reserve a 1u above and below it and its 2u external battery?
https://www.amazon.com/Tripp-Lite-Rack-Mount-Extended-SMART1500LCDXL/dp/B005PAIELM/ref=pd_bxgy_23_img_2?_encoding=UTF8&psc=1&refRID=95T6N27FPK9A6BTVQ355
https://www.amazon.com/Tripp-Lite-BP24V15RT2U-External-Battery/dp/B00170ZTRQ/ref=pd_bxgy_23_img_2?_encoding=UTF8&psc=1&refRID=M5VJH1NT956BM20B1EZ8
https://www.amazon.com/StarTech-Universal-Vented-Cantilever-19-Inch/dp/B008X3JHJQ/ref=pd_bxgy_23_img_3?_encoding=UTF8&psc=1&refRID=M5M2V72A6VJCNF0GZF85
https://www.amazon.com/Tripp-Lite-Rack-Mount-Extended-SMART1500LCDXL/dp/B005PAIELM/ref=pd_bxgy_23_img_2?_encoding=UTF8&psc=1&refRID=95T6N27FPK9A6BTVQ355
https://www.amazon.com/Tripp-Lite-BP24V15RT2U-External-Battery/dp/B00170ZTRQ/ref=pd_bxgy_23_img_2?_encoding=UTF8&psc=1&refRID=M5VJH1NT956BM20B1EZ8
https://www.amazon.com/StarTech-Universal-Vented-Cantilever-19-Inch/dp/B008X3JHJQ/ref=pd_bxgy_23_img_3?_encoding=UTF8&psc=1&refRID=M5M2V72A6VJCNF0GZF85