User's Manual

SHENZHEN SYS IoT CO., LTD. 17 / 34
Tel: [phone]
Fax: [phone]
Mail: [e-mail]
Http://www.sysiot.cn
Add: Room 716, Yiben E-Commerce
and Industrial Park, Chaguang Road
Nanshan District, Shenzhen, China
Post Code：518055
Picture 22
Click”Set” after select the desired parameters of antenna. Click”Get ”, get the set parameters of
antenna.
(1) Antenna quantity
Picture 23
Select”1” for one port module, and select”4” for four antenna module.
(2) “Auto Polling”: if it is a multiple antenna ports module, enable”Auto Polling”, when the
module is set to multiple tags reading (refer to 3.3.2), the module will call the enable antenna ports
successively and don’t need to send antenna switch command. Important: The enable port has to be
connected with 50Ωimpedance antenna and the standing wave ratio is smaller than 1.3.
Picture 24
If disable “Auto Polling”, need send Switch command to switch antenna. Please refer to the
contents related to antenna switching. Important
Important: “Auto Polling” function is only used under multiple tags reading mode.
(3) Antenna “Enable”, Select to enable desired antenna, unselect to disable desired antenna,
Shown as Picture25, Ant1, Ant3 and Ant4 is enabled and Ant2 is disabled. Important: Port Ant1, Ant2
and Ant4 has to be connected with 50Ω impedance antenna or 50Ω impedance, otherwise, the module
will be damaged if there is no antenna connected when the port is set to enable.