User manual

In standard configuration only Remote one (on RS422 port 1) is allowed to reset the
system.
Warning
This jumper should be removed if the device connected to the RS422 port is NOT
an EVS controller. Maximum voltage on pin 5 of an RS422 port of the server
should not exceed 5 Volt when the corresponding jumper is engaged. Applying a
higher voltage on pin 5 when the corresponding jumper is engaged will result in
permanent electronic damage to the board.
XT3 Server- Version 11.01- Hardware Technical Reference Manual
6. Boards Description 93