3
3.
Remove
the
Rear
Cover
(loosen
the
captive
screws
(4)
that
secure
it
to
the
chassis.)
29287
Captive Screws
Installing the RS-232 Port
4.
Remove
the
RS232/D
knockout
from
the
Connector
Panel.
Insert
a
flat
screwdriver
in
the
slot
and
twist
the
knockout
up
and
down
to
break
it
loose.
29409
RS-232/D Knockout