5.
Installation
Identification
Each NTS 02-G unit is shipped with identification labels on the base and side of the unit. The labels
provide details on the hardware options fitted in the unit during manufacture, as well as the power
supply requirements and the unit serial number.
Check the identification label on the base or side of the unit to ensure that the correct model
has been supplied before proceeding to install!
Location
The unit is intended for installation in restricted access areas. A restricted access area can be
accessed only using a lock and key or other means of security. Installation is to be done by
suitably qualified personnel.
Power Supply
The input voltage range is marked on the product label on the base or side of the unit. Do not
apply voltage outside the range noted.
DC power should be applied to pins L and N. DC polarity is not critical, but only pin L is fused internally.
It is recommended to connect the '+' terminal to L. Pin E is connected to the chassis of the unit to be
used for earthing.
This power input can be used with AC supply within the specified input voltage range. Pin E is the Earth
connection for AC supply and the mains phase connection must be connected to the L terminal as this
is fused.
Hazardous
Voltage