User Guide
DDOC0108-000-A2
CNS4 CSfC
4 - 2
Installation
Revision 1.0
If either the CNS4 chassis or associated modules were damaged in shipping or the enclosure was
breached, immediately notify Curtiss-Wright Defense Solutions or your supplier.
4.3
Mounting
Mounting environment considerations should include operating temperature limits, humidity, and
vibration limits. Other considerations should include clearance for mounting hardware, cables, and
safe installation or removal of the CNS4 from its mounting structure. Precautions should be taken
when cables are routed around structures that could cause excessive abrasion, such as around
the corner of vibrating equipment.
Installation of the CNS4 can put an increased demand on cooling systems by raising ambient air
temperatures. Evaluate changes in airflow obstructions and temperatures around equipment and
possible detrimental surface temperatures due to conducted heat. See Appendix A for thermal
limit specifications.
If installation and / or removal of FSM-C modules is desired while the CNS4 remains mounted, be
sure to allow clearance (4.4) for the door to open and the FSM-C module(s) to be positioned in
front of the CNS4.
Figure 4.2
Required Door Clearance
4.3.1
Mounting - User Defined
The CNS4 can be mounted directly to a mounting surface. The unit provides holes in the rear for
interfacing with mounting pins. The front provides J-hooks to secure the unit in place. Refer to
section, Figure A.1 for dimensional information.
4.3.2
Mounting - ARINC Tray
Mechanical mounting of the CNS4 can be accomplished using a ARINC 404 1 ATR short tray. The
tray has the mounting components in place and offers options for use of shock isolators. Contact
Curtiss-Wright Defense Solutions for information on the ARINC tray.
4.4
CNS4 Install / Remove
4.4.1
Install (User Defined Mount)
1. Slide CNS4 back so mounting pins engage chassis holes.
2. Pivot mounting knobs up so they capture J-hooks.
3. Rotate mounting knobs to secure CNS4 to mounting surface.
4. Connect Ethernet cables to front panel connectors GBE0 through GBE3.
5. Connect power / RS-232 cable to front panel power connector.
DDOC0108
-0018
150°
6.75 In.
(171.4 mm)
