System description
Senstar LM100 Product Guide
Page 13
Fail-safe relay operation
In the default configuration, the gateway’s relays operate in fail-safe mode. During normal
operation, the relays latch in the non-alarm state. In the event of a total gateway failure all relays
switch to the alarm state.
Power source and wiring
The Senstar LM100 system operates on a wide range of input voltages (12 to 48 VDC). A 12 VDC
power supply is suitable for powering the gateway and the luminaire AP, or a single luminaire.
Outdoor rated low voltage power cable is available in 150 m (492 ft.) reels (P/N: 14/2 GW0337-14,
10/2 GW0337-10). The distance covered by a power supply can be extended by running the
power cables in both directions around the perimeter from a central location. The following tables
includes the number of luminaires that can be powered based on power supply voltage, wire
gauge and distance:
Power cable protection
Some Senstar LM100 installations require that the power cables are protected against vandalism
and accidental damage. There are two recommended methods of providing power cable
protection:
•
Use armored outdoor and wet location rated power cable.
•
Use standard outdoor and wet location rated power cable that is protected inside conduit.
Auxiliary device output power
The gateway device can source up to 100 mA at the gateway’s input voltage via the onboard
outputs. The outputs can be used to energize high voltage relays or to activate auxiliary security
devices.
Note
The gateway can use either an input card or an output card, not both.
Note
In locations where AC power may not be stable or reliable, an
uninterruptable power supply (UPS) should be used for primary power.
Note
To use 10 AWG power cables you require kit number E8KT0101-001
which includes 2 large wire joint crimps and a larger cable gland.
Figure 4: Senstar LM100 luminaire power cable recommendations
