Lenel LNL-3300-M5, Installation Manual

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Hardware Installation Guidelines
14 —
revision 7
2.4 Cabling
2.4.1 Cable Routing
Keep cabling at least 1 foot (30.5 cm) away from any power line or other AC voltage source.
Exercise caution when locating cables and M5 components near any other equipment that may cause
electrical interference (noise). Examples of electrical and electro-magnetic noise sources are:
• Fluorescent lighting and neon fixtures.
• Power distribution panels, including wiring, transformers, generators, and alternators.
• Motors that drive machinery, such as air conditioners, elevators, escalators, large blowers, and machine
tools. Electromagnetic equipment such as degaussers, magnetic chucks, etc.
• Control equipment (relays) for machinery and other switching devices that carry or switch large
currents.
• Radio and television receivers and transmitters.
• Signal generators and intercom systems.
• Radar transmitting equipment.
• Arc welders, electrodischarge machinery, and related equipment.
• RF induction heaters.
2.4.2 Cable Length
• Minimize long parallel cable runs since they increase the likelihood of interference between signal
cables and electrical interference sources.
• Avoid excess cable length between the M5 controller and the optional equipment, such as readers and
digital outputs, to reduce signal degradation due to external effects.
2.5 Mounting
Read the mounting and handling guidelines below before beginning to mount the controller.
2.5.1 Mounting and Handling Guidelines
Comply with the following guidelines:
• Locate the host computer and the Lenel M Series system in areas secure from any disruption to data
communications or tampering.
• Clean and clear all mounting areas of corrosive gases and airborne metallic particles. Avoid installing
near photocopiers due to contamination from toner particles.
• Protect the Lenel M Series system from hazardous (high) voltages.
• Mount the Lenel M Series enclosure on a vertical surface with at least 6 inches (15.2 cm) clearance on
all four sides to support thermal air cooling.
• Locate the Lenel M Series enclosure in a place that provides dedicated AC earth ground. The Lenel M
Series system must be earth grounded.
• Keep interior and exterior housing of all Lenel M Series enclosures and other components free of wire
remnants.
• Avoid temperatures outside range specified for Lenel M Series operating environment. Do not leave
boards or other components in direct sunlight.
• To avoid mechanical damage, do not drop or stack boards.