BLOCK DIAGRAM
JUMPERS ON THE COHX BASE OF A V3X BOARD
ST1, ST2: These 2 jumpers must be installed on the last V3X board of the
server (i.e. on V3X #1, 2 or 3 if there are respectively 1, 2 or 3
V3X board installed in the server)
ST3 (SPARE): «parking» for jumpers for ST1 and ST2 when these are not used
ST4 (only on
V3X with
genlock):
It must be set to HiZ (or not installed).
Note that the Genlock Loop connector on the back panel of the
XT3 server must always
be terminated with a 75 Ohm load if it is
not used.
ST5: It defines the position of the board inside the server. It must be
set to « 1 » for a V3X with genlock, and to « 2 » or « 3 » for a
V3X board without genlock, depending on its position in the
server.