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FireLite SLC Wiring Manual — P/N 51309:R3  7/29/2019
Intelligent Detector Bases and Wireless Gateway Wiring the W-GATE
9.7.1  SLC Connections
The W-GATE Wireless Gateway acts as a bridge between a group of wireless fire devices and a LiteSpeed SLC loop on the ES-50X, ES-
200X, or MS-9200UDLS. It is powered by the SLC loop or by a regulated, external 24VDC UL-listed power supply. Available wireless 
devices include a photo detector, a photo/heat detector, a fixed-temperature heat detector, a rate-of-rise heat detector, and a monitor mod-
ule. For details about wireless devices, system setup, and operation, see the SWIFT™ Smart Wireless Integrated Fire Technology 
Instruction Manual.
9.7.2  W-GATE Powered by the SLC
The W-GATE provides isolation of short circuits on the SLC in Class A installations. SLC connections are power-limited by the panel. 
An interruption in the SLC that causes a loss of power at the W-GATE for more than 100ms may result in a trouble condition and loss of 
fire protection provided by the wireless devices for approximately 15 minutes. Use of a regulated, external +24VDC power source (not 
SLC power) is recommended for installations that require fire protection in the presence of short circuits, including Class A applications 
and applications that use isolator modules. Figure 9.6 shows typical wiring of a Wireless Network Gateway connected to an SLC when 
power is supplied by the SLC loop    
A7- SLC OUT+
A6- SLC IN+
A5- SLC- (Common)
A4- SLC Power Select 2
A3- Power +24VDC
A2- Power Ground
A1- SLC Power Select 1
Figure 9.5  W-GATE Mounting Plate - Terminal Layout
2
.
4
.
w
m
f
SLC in from FACP/device
SLC out to next device (Class B) 
or SLC return to FACP (Class A)
Jumpers
2
.
5
.
w
m
f
Figure 9.6  W-GATE Powered by the SLC