Cobalt Digital <b>RM20-9915-A-HDBNC</b> is a 20-slot frame rear I/O module with four 12G/3G/HD/SD-SDI inputs and sixteen 12G/3G/HD/SD-SDI outputs for use with Cobalt's 9915DA Multi-Rate Reclocking DA's.. It works as a rear module for the Cobalt card part# 9915DA-2x16-XPT-12G .</p><p><b><ins>Notes</b></ins>:<br />Rear module has factory-installed SFP module receptacles on rear module. Plug-in SFP functionality is available with option -DA-SFP (SFP support daughtercard) and SFP plug-in module options.</p><p>On 9915DA-2x16-12G model, SFP cage 1 supports only Rx (OE) type SFPs. SFP cage 2 supports only Tx (EO) type SFPs.</p><p>SFP modules, when inserted into rear module SFP receptacles, can dimensionally extend past the right "boundary" of the rear module. In rare cases, this can present interference issues if a rear module to the right of SFP rear module also has adjacent large-footprint connectors that can extend across the rear module boundary. Plan frame buildout accordingly in these cases.</p>