The SQ-HMX-3400-B-1RU is a 4 AES HD/SD multiplexer which is used in SEQUOIA series frames. The SQ-HMX-3400 multiplexer offers one HD/SD-SDI (1.485Gbps, 1.485/1.001Gbps, 270Mbps) digital video input, four AES-3id digital audio inputs and provides three HD/SD-SDI digital video outputs with audio embedded. The SQ-HMX-3400 multiplexer performs 24-bit A/D conversion of four balanced analog audio inputs and then embeds them into HD/SD-SDI outputs. Embedding channels are selectable and input audio can be embedded to designated channel. Embedding modes are selectable, including L/R swap, copy and mix. Input audio gain is adjustable within ±20dB. The HD/SD-SDI input signal supports 328 ft (100 m)/984 ft (300 m) cable equalization compensation (Belden 1694A cable or equivalent cables). Status presence indication and parameters manual adjustment are provided via the LED indicators, selector and paddle switches located on the module edge. 1RU and 2RU back modules are provided for SQ-HMX-3400 modules when used in 1RU and 2RU SEQUOIA series frames, respectively.