Lenel OnGuard 2013, Installation Manual

NGP Keypad Installation Guide

revision 1.007 — 

9

2.3

Mains Supply

The NGP system is intended to be permanently connected to the A.C. power source. Ensure that a readily 
accessible two-pole disconnect device (circuit breaker) is incorporated in the building installation wiring to 
disconnect the equipment in case of servicing. The earth conductor to which this device is connected to shall 
be clearly identified. It is important that the mains supply be connected in accordance to national electrical 
wiring codes and should only be carried out by authorized persons.

The NGP control cabinets have been provided with cable knockouts on the sides, top and bottom, these are 
intended for the attachment of conduit. Ensure that the mains cable entering the enclosure is securely 
fastened using cable ties and that it's kept separate from all other data cables.

Some NGP models primarily intended for regions with a 230 VAC supply will come with a built-in step-
down transformer. The mains fuse used on these units is a 500 mA, 250 V fast blow. When replacing, ensure 
that only the same or exact equivalent is used. Once again ensure that the mains cable is securely fastened 
and kept clear of all data cables.

For those units not supplied with a built-in transformer, the NGP requires 16 VAC input at TB1 on the main 
board. Use a 110 VAC to 16 VAC, minimum 40 VA step-down, energy limited Class II transformer wired 
into a protected branch circuit. Only certified transformers should be used whose output is designated as 
SELV. The current draw from these units should not exceed 1.8 Amps; refer to the current draw of each unit 
prior to connecting to the control panel. An additional power supply will be required when the current limit 
of the main panel has been reached.

2.4

Warnings (North America, Australia)

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to 
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful 
interference when the equipment is operated in a commercial environment. This equipment generates, uses, 
and can radiate radio frequency energy and, if not installed and used in accordance with the instruction 
manual, may cause harmful interference to radio communications. Operation of this equipment in a 
residential area is likely to cause harmful interference in which case users will be required to correct the 
interference at their own expense.

This is a class A product. In a domestic environment this product may cause radio interference in which case 
the user may be required to take adequate protection measures.

3

CE Conformity

The NGP System described in this manual conforms to the requirements of the Council Directive 89/336/
EEC - The EMC Directive and 73/23/EEC - The Low Voltage Directive. 1999/5/EC-The R&TTE Directive. 
To maintain compliancy with this directive, it is essential to adhere to the installation recommendations 
described within this manual.