1. RS232 control;
2. 10 power input pins power for system and UUT ;
3. 4 RF inputs with BIAS_TEE;
4. 10 direct coaxial lines used for audio or RF signal switch ;
5. Voltage sampling using 12 bitADC;
6. multi-channel Relays for signal or power switch ;
7. multi-channel Digital output for fixture control ;
8. multi-channelDigital input for sensor detect ;
9. powerfulresource expansion using I2C expansion connection board;
RFparameters:
1. Cableloss：0.2-0.3
2. Bias_Tee：Equivalentload：50ohm，Bandwidth0.1-4000MHz
Voltagesampling parameters :
1. Sample range: -10V - +10V
2. Sample precision：3mV
Relayparameters :
1. Rated voltage:30V，Ratedcurrent: 1A
2.Mechanical endurance：5*107 operations;
Electricalendurance：105operations
3. Operate time：<100ms
DO parameters :
1. Open Drain Output;
2. Max DriverCurrent: 2A
3. 6 channel for 1 DIO card
DI parameters :
1. isolation input;
2. input high voltage range : 5V-24V
3. 6 channel for 1 DIO card
• Place the loadbox into the fixture.Use Ii as an interface to connect toexternal systemsforconvenient maintenance
• All interface resources are inputfrom I1 on the rear panel, and other interfaces on the front panel are output•1. 8 signal pins (A1-H1, fine pins) ;
• 2.2 communication ports (USBand RS232, A2-H2, fine pins) ;
• 3.8reservepins(A3-H3, fine pins) ;
• 4.10 power input pins power for system and UUT (A4-E4,A5-E5, thick pins)；
• 5.4 RF inputs with BIAS_TEE (A6-D6,coaxial pins)；
• 6.10 direct coaxial lines used for audio or RF signal switch (A7-E7,A8-D8,A9,coaxial pins)
Communication and control mode：
1. RS232 used for communication between BOX and PC;
2. Refer to “GWM Loadbox PC and Control Board Communication Protocol V1.4.doc”forspecific communication protocol
Debug software：
Itcan implements the functions of various daughter boards of the box, which isconvenient for offline debugging of the product.
Itcan implement the functions of various daughter boards of the box, which isconvenient for offline debugging of the product.
Inorder to implement the rapid test and mass production of the board, the rapidtest platform of the board is specially customized
Throughthe software can achieve Box fast offline testing
