14:sdi input, 17:cvbs loop out, 18:s-video loop out – RGBLink VSP 628S User Manual User Manual
Page 28: 19:vga loop out, 20:dvi loop out, Output interface, 11:sending card/sdi output module port, 21:dvi output, 22:dvi +vga dvi output, Hardware orientation

2. Hardware Orientation
VSP 628S Back Panel
VSP 628S User Manual 28
13.14:SDI Input
Can receive video signal from HD player, and HD camera, connect
interface 16 via 75 ohms BNC port. Connect LED screens via network
cable.
15.16.17:CVBS Loop Out
Composite CVBS loop out, can connect the next level VSP 628S or the
device with CVBS input.
18:S-Video Loop Out
S-Video loop out, can connect the next level VSP 628S or the device with S
Terminal loop out.
19:VGA Loop Out
VGA loop out, can connect the next level VSP 628S or the device with VGA
loop out.
20:DVI Loop Out
DVI loop out, can connect the next level VSP 628S or the device with DVI
loop out.
OUTPUT Interface
11:Sending Card/SDI output module port
Sending card or SDI output module port. Can not be installed at the same
time. Power has been already supplied by video processor itself, no
external power supply needed for sending card.
21:DVI Output
Connect to the monitor or LED screen which has DVI interface(This DVI
connector does not support hot-plugging).
22:DVI +VGA DVI Output
DVI +VGA output via DVI connector, connect to the monitor or LED screen
which has DVI interface. ( This DVI connector does not support