112.2.1 Rear Panel ConnectionsVideo Input Modules (1 – 12)The SE-2850 can be supplied with eight ortwelve video input channels.An SE-2850 with eight input channels (Input 1to 8) has two video input modules installed.There are four video input channels on eachVideo Input Module. Each Video InputModule (shown left) has the sameconnections, four BNC connectors and oneHDMI port. The fourth BNC connector and theHDMI port are an option for the same inputchannel.An SE-2850 with twelve input channels hasthree video input modules installed. An eightchannel unit can be upgraded to twelveinputs by adding another Video Input Module(Input 9 to 12).SD Inputs SDIBNCHDMI1, 5 & 9 Yes ---2, 6 & 10 Yes ---3, 7 & 11 Yes ---4, 8 & 12 Yes Yes1920x1080iHD InputsHD-SDIBNC HDMI1, 5 & 9 Yes ---2, 6 & 10 Yes ---3, 7 & 11 Yes ---4, 8 & 12 Yes YesThe two tables, on the left, show which typesof video inputs can be connected to the SE-2850 switcher. For example, only inputchannels 4, 8 and 12 have the HDMI inputoption.NOTE: This switcher cannot accept 1080P or1280x720P or 1440x1080i inputs and has nocomputer input scaling options.NOTE: Please perform a factory reset on yourmachine if there is any change in the framerate (for example 1080i50 1080i59).SYNC I/O (14 / 16)The SE-2850 can be synchronized with otherstudio equipment such as cameras. REF IN(14) will accept Tri-level sync. REF LOOP (16)can be used to pass the sync signal to otherstudio equipment such as cameras orrecorders.