TNF1MR801 add/drop eight channels of wavelength signals to/from the multiplexed signals in a direction.Applied to Huawei OSN1800 I, OSN1800 II, OSN 1800V, OSN1800 OADM frame.Allowable frequencies at each optical port are 192.1 THz, 192.2 THz, 192.3 THz, 192.4 THz, 192.5 THz, 192.6 THz, 192.7 THz, and 192.8 THz.TNF1MR801Huawei 8-Channel OpticalAdd/Drop Multiplexing Board(192.1/192.2/192.3/192.4/192.5/192.6/192.7/192.8THz)Supports two-fiber bidirectional transmission.Provides the optical port to concatenate other OADM boards.Supports the DWDM specifications. TNF1MR801 is an 8-channel optical add/drop multiplexing board applied to Huawei OSN1800 I, OSN1800 II, OSN 1800V and OSN 1800 OADM frame. TNF1MR801 part number is 03030JYU, available hardware version for the MR8 is TNF1; The system provides eight types of the MR8, namely MR801, MR802, MR803, MR804, MR805, MR811, MR812, MR822 with different allowable frequencies.