Johnson Controls 300 Series Manual page 18

18 Network Control Module 300 Series Technical Bulletin
Select a wall space or area with sufficient room to mount the enclosure
that contains the NCM. The load-bearing capacity of the wall also
must be able to support the unit. Table 8 indicates the dimensions of
the Universal Packaging Module (UPM), as well as the fully loaded
configuration weight of an NCM with enclosure.
Table 8: UPM Dimensions
Enclosure Dimensions
EN-EWC22-0 41 W x 41 H x 19 cm D, 5.0 kg (16 x 16 x 7.5 in., 11 lb)
EN-EWC35-0 41 W x 59 H x 19 cm D, 7.8 kg (16 x 23 x 7.5 in., 17 lb)
EN-EWC45-0 41 W x 77 H x 19 cm D, 9.7 kg (16 x 30 x 7.5 in., 21 lb)
Environment
The environment where you mount the NCM must have the following
characteristics:
• Ambient temperature limits for the NCM (0 to 50°C, 32 to 122°F)
based on convection cooling, as normally installed. Lower
temperatures can be accommodated by means of field-installed
enclosure heaters. Higher temperatures can be tolerated with some
additional forced cooling.
• Ambient humidity must range within 10-90% RH
(noncondensing).
• The environment must be free of conductive contaminants such as
normal cooking vapors and carbon dust.
IMPORTANT: Do not install the NCM in areas that contain conductive
contaminants. Conductive contaminants can result in damage to the NCM.
• Shielded cables are required for RS-232 connections.
• Shielded cables are required for the N1 and N2 networks only
when the NCM is mounted in close proximity to radio frequency
transmitters (500 to 1000 watts or larger), airport control towers,
and hospital nuclear or electronic imaging equipment (for example,
operating room, imaging lab).
• The NCM can operate while withstanding vibrations of 5 to 60 Hz
of up to 0.5G, and shocks of up to 2G lasting 10 ms. Nonetheless,
mount the unit on as stable a surface as possible.