AD analog input
 AD converter type: AD7663
 Input Range: ±10V, ±5V, ±2.5, 0～10V, 0～5V
 16-bit resolution
 Sampling Rate: 1Hz～250KHz
 Analog Input Mode: 32-channel single end and 16-channel double end
 Sampling Channel No.: software-configurable, we can achieve through set First Channel and Last Channel
Note: Sampling Channel No. = Last Channel – First Channel + 1
 Channel Switch Mode: sequence switch First Channel and Last Channel
 Data Read Mode: non-empty, half-full inquiry mode and DMA mode
 Memory Depth: 8K word FIFO memory
 Memory Signs: full, non-empty and half-full
 AD Mode: continuum sampling , grouping sampling
 Trigger Type: level trigger , edge trigger
 Trigger Direction: negative, positive, positive and negative trigger
 Trigger Source: ATR, DTR
DA analog output
 AD converter type: DAC7613
 Input Rang: e±10V,±5V, 0～10V, 0～5V
 12-bit resolution
 Set-up Time: 10μS (0.01%)
 Channel No.: 4-channel
 Non-linear error: ±1LSB(Maximum)
 Output Error (full-scale): ±1LSB
 Operating Temperature Range:－40℃ ～ +85℃
 Storage Temperature Range: －40℃ ～ +120℃
DI digital input
 Channel No.: 8-channel
 Electric Standard: TTL compatible
 High Voltage: ≧2V
 Low Voltage: ≦0.8V

DO digital output
 Channel No.: 8-channel
 Electrical Standard: TTL compatible
 High Voltage: ≧3.8V
 Low Voltage: ≦0.44V
 Power-on Reset