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SV-WA1000（无线表决系统--主控机）
SV-WA1000 (Wireless Voting System- Master Device)
跳频：64频点 ；
电源：DC 9V  0.5A；
工作环境（温度）：－20 ℃—＋50℃
连接方式：标准RS232或RS422；
与表决器最远稳定通讯距离：500米；
主控机最大容量：单台主控机：标配250台表决器；最大容量1000台表决器；
安全性能：具主通讯端口、备用通讯端口和会场信号测试端口，主通讯端口出现故障可快速启用备用通讯端口；
信号检测：会前、会中、会后对会议现场无线信号进行实时检测；
天线：小号：高120mm；中号：高940mm；大号：高2000mm；
通讯端口接口：航空接口。
包装方式：铝箱便携式包装；
供电：输入AC220V 1A，输出DC 12V ，采用RS422连接方式可直接给无线主控机供电。
标配容量：最多可连接250台无线主控机
工作环境（温度）：－20 ℃—＋50℃
连接方式：标准RS232和RS422
Frequency hopping: 64 frequencies;
Power supply: DC 9V 0.5A;
Operating environment (temperature): －20 ℃—＋50℃
Connection method: RS232 standard or RS422 standard;
Longest stable communication distance to the voting machine: 500m;
Maximum capacity of the master device: the standard amount of voting machines for a master device is 250, and the maximum capacity is 1000 voting machines;
Safety performance: with master communication port, standby communication port and meeting place signal testing port. The standby communication port is quickly adopted when the master communication port is broken down.
Signal test: conduct real-time test of the wireless signal in the meeting place before, during and after the meeting.
Antenna height: small model: 120mm, medium model: 940mm, large model: 2000mm.
Communication port interface: aeronautic interface.
Packing method: portable packing in aluminum cases.
Power supply: input: AC220V 1A, output: DC 12V. The RS422 connection method is adopted to supply the power directly to the wireless master device.
Standard capacity: connect to 250 wireless master devices at most.
Operating environment (temperature): －20 ℃—＋50℃
Connection method: RS232 standard or RS422 standard

                                                               
SV-WB1000（无线表决器）   天线SV-WD1000
 (Wireless Voting Machine)       (Antenna ) 
跳频：64频点互转；
工作环境（温度）：－20 ℃—＋50℃
系统最大容量：10000席
连续表决按键次数：100000次；
通讯方式：无线通讯，保密协议+多重校验；
液晶参数：12864；FSTN反光；点阵显示表决器号码，频道信息，电量显示，
表决/报到信息；
电
池电量显示：动态显示，低电量报警；
灵敏度：-121dBm；
发射功率：<10毫瓦；
单台通讯收发时间周期：60毫秒；
包装方式：铝箱便携式包装；
关机方式：通过系统软件发指令关机或在无信号接收1小时后自动关机；
信号显示：表决器在通讯状态下，具有信号强度显示；
报到方式：按键
表决方式：可设定为第一次按键有效或最后一次按键有效；
Frequency hopping: 64 frequencies inter-conversion;
Operating environment (temperature): －20 ℃—＋50℃
Maximum capacity of the system: 10,000 seats
Durable times of the voting button to be pushed continuously: 100,000 times;
Communication method: wireless communication, confidential protocol+ multiple levels of checking;
Parameters of the LCD display: 12864; FSTN reflection. The dot-matrix display shows the number of voting machine, channel information, electricity quantity, voting/checking in information;
Battery electricity quantity display: dynamic display, give warning when the electricity quantity is low;
Sensitivity: -121dBm；
Transmitting power: <10 mW;
Receiving and transmitting cycle of a unit: 60 ms;
Packing method: portable packing in aluminum cases;
Turning off method: turned off by the instruction of the system software or automatically turned off when no signal is received in 1 hour;
Signal display: when in the communication state, the signal strength can be displayed on the voting machine.
Checking in method: by pushing a button.
Voting method: can be set as that the first time to push a button is effective or the last time to push a button is effective;