Senstar Corporation LM100 User Manual

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Security factors
Senstar LM100 Product Guide
Page 13
Grounding considerations
The Senstar LM100 gateway requires a stable low resistance earth ground connection. Use a 
short length of heavy gauge copper wire to connect the ground lug on the bottom of the enclosure 
to an approved low resistance earth ground.
Alarm monitoring
Alarm monitoring is site specific and depends on whether you are using relay outputs for alarm 
reporting (standalone system, local control mode) or Silver Network based alarm reporting 
(networked system, remote control mode). Each gateway has ten user-configurable I/O points 
(inputs/outputs). In standalone mode, the outputs are used to signal alarm and supervision 
conditions. For network based gateways, alarm data is carried over the network cables and the 
outputs are available as output control points from the security management system.
NM Mode alarm reporting
The LM100 gateway can be configured to report alarm and supervision conditions through the 
UltraLink modular I/O system. The UltraLink I/O processor, operating in NM Mode, functions as a 
Network Manager, providing alarm outputs for a connected network of up to eight Silver Network 
compatible devices. In NM Mode, the Silver devices do not require a connection to a PC running 
Silver Network Manager software. Sensor alarms and supervision conditions are assigned to 
UltraLink I/O outputs. When an alarm occurs on a connected sensor, the corresponding UltraLink 
output is activated (see 00DA1003-002 UltraLink I/O for additional details).
Security factors
There are many important factors to consider when planning a perimeter security system:
Fence height - The fence must be high enough to present an effective barrier to climb-over 
intrusions. It should also include climb-over deterrent hardware such as barbed wire or razor 
ribbon (for flexible fences). Rigid fence types should incorporate a climb over deterrent in their 
design (pointed stakes or pales). Senstar recommends that the minimum fence height for a 
Senstar LM100 installation on a flexible fence type is 2.5 m (8 ft.). For rigid fence types the 
minimum recommended fence height is 2 m (6.5 ft.).
Fence condition - the Senstar LM100 detects intrusions by sensing the minute vibrations 
caused by an intrusion attempt. Therefore, the fence must be in good condition to prevent any 
metal on metal contact or vibrations caused by environmental factors. It may be necessary to 
upgrade or repair the perimeter fence to ensure it presents a sufficient barrier against climb 
over and crawl under intrusions. If you are not sure of the suitability of your fence for a Senstar 
LM100 system, Senstar recommends hiring a local fencing contractor to inspect, and if 
required, repair the fence.
Fence length - The length of the fence, the number of fence posts and the fence post spacing 
determine the number of luminaires required to provide adequate coverage. The maximum 
recommended spacing for luminaires is 6 m (20 ft.). The minimum recommended spacing for 
luminaires is 3 m (10 ft.). The minimum spacing provides the highest level of security. 
Exceeding the maximum recommended spacing can result in areas with reduced detection 
sensitivity and gaps in the lighting.
CAUTION
Consult the local electrical code for grounding information.