The JDS Fitel HA92 is a Multimode 62.5/125 um optical attenuator. The JDS Uniphase Programmable Attenuator HA92 model has a wide wavelength range of 750-1700 nm. It has an attenuation range of 100 Db and a accuracy of 0.1 dB . This HA92C+11KSC1 has a built-in 50/50 coupler Option. The port type is bulkheads on front with SC/PC connectors. JDS Fitel HA92 attenuators can also be fitted with 10/90, 2/98, 30/70 couplers or 1:2 switch. The H9 Series has a SCPI/HP8156A compatible command set and they can be controlled either from the front panel keypad or by GPIB (IEEE 488.2) and RS232 interfaces .