Ningbo Putian Communication Technology Co., Ltd5、Description for DK-Em4PS Installation5.1. Antenna InstallationThere are 4 SMA ports at the top of a device; users install Antenna withdifferent Module Configurations according to channels and 1-4 Numericalorder on it。As shown in Figure 5-1-1:Figure 5-1-1 Location of Antenna installationNote:The antenna must be installed before a device switched on!Otherwise, the module may be damaged!5.2. Power ConnectionInsert an Adapter into AC220V (different adapters for different counties)Power Line, then insert into an Outlet, finally a 12V output is connectedwith the power interface. When the output of an adapter is inserted into thepower interface, a device will Open automatically。The position for a PowerInterface as shown in Figure 5-2-1:- 7 -