Amazon.com: APC AP940-1525A UPS Communications Smart-UPS Signalling Serial RS-232 Cable DB9 to RJ45 (RJ50) - Same as AP940-1525C and AP940-0625A But a Longer Cable : Electronics
LOGILINK FPSLC05: Fiber simplex patch cable, OS2, SM, LC - APC - LC - APC, 5 m at reichelt elektronik