EXFO America Inc. TJ-KIT-TELE-ATT-LC Loopback Jumper Kit, includes:Bantam looping plug, BNC looping jumper, RJ-45 10/100/1000 looping plug, RJ-48 E1/DS1 looping plug , Bulkhead LC/UPC male to LC/UPC female 10dB attenuator, and 3 meter fiber test jumper LC/UPC