Panasonic WJ-FS616C Operating Instructions Manual page 11

%6 Signal Ground Terminal (SIGNAL GND)
%7 Data Termination Switch
(TERM., OFF/ON)
This switch is used to enable termination of the video
multiplexer's data port.
%8 Data Port (DATA, OUT/IN)
These ports are used to exchange control data with the
specified system controller or a PC in a system.
11