CyberData VoIP Intercom - Manual (Page 38)

CyberData Corporation 930181B Operations Guide
Mount the Intercom
30
If the thread on the conduit is longer than 3/8 inch, then a stop nut (not supplied) is required.
Otherwise, use the outlet box plug to plug the exit hole.
Figure A-2. Mounting the VoIP Intercom Assembly
Figure A-3 shows the restrictions of the pipe going into the box.
Figure A-3. Pipe Restrictions
OR
CONDUIT
HOLE PLUG
Not to Exceed 0.1"
CONDUIT