제품소개

Features
● Card index switch selection
● USB 2.0, USB bus powered
● Programmable digital filter removes unexpected glitches from
    input channels
● Programmable DO/Relay initial status
● 32-CH isolated digital I/O (USB-7230)
● 8-CH relay output, 8-CH isolated DI (USB-7250)
● 2-CH frequency/event counters (USB-7230/7250)
● Up to 2500 VRMS isolation voltage
● Ready-to-use testing application (U-Test) provided
● Supported Operating System: Windows 7/8 x64/x86, Linux, and 
    MAC (Call for availability)
 

Specification & Introduction
 Relay output
● Channels 
    - 8 (non-latching, 4-CH form C & 4-CH form A)
● Max. switching power 
    - 60 W, 125 VA
● Max. switching voltage 
    - 220 VDC, 250 VAC
● Max. switching current 
    - 2A
● Max. carrying current 
    - 2A
● Max. contact rating 
    -
    30 VDC, 2 A (Resistive)
    110 VDC, 0.3 A (Resistive)
    125 VAC, 0.5 A (Resistive)
● Relay on/off time 
    - 
    Operating time 2 ms
    Release time 1 ms
● Resistance 
    - 75mΩ
● Expected life 
    - 50 VDC 0.1A (resistive), 1x106
● Breakdown voltage 
    - 1500 V surge
 Optical Isolated Input
● Channels 
    16 8
● Polarity 
    Bi-directional (non-polarity)
● Logic level 
    VIH=5 to 24V, VIL=0 to 0.1.5V or dry contact
● Input resistance 
    2.4k @ 0.5W
● Isolated voltage 
    2500VRMS (channel to system)
● Min. pulse-width for change of state (COS) detection 
    20.83ns (software programmable)
 Optical Isolated Frequency/Event Counter
● Channels
     2
● Logic level 
    VIH=5 to 12V, VIL=0 to 0.1.5V
● Event counter width 
    32-Bit
● Max. input frequency (DC coupled) 
    1 MHz
● Min. input frequency (DC coupled) 
    0.1 Hz
● Max. frequency error
    0.5% (f ≦ 50kHz)
    1% (50kHz < f ≦ 500kHz)
    2% (500kHz < f ≦ 1MHz)
 Optical Isolated Output
● Channels 
    16 -
● Output type 
    Open drain MOSFET -
● Supply voltage 
    5-35VDC -
● Max. sink current 
    250 mA @ 100% duty (per channel) -
 General Specifications
● Interface 
    High speed USB 2.0 compatible, mini-USB connector
● Data transfer 
    Programmed I/O
● Dimensions 
    156.5 (L) x 114 (W) x 41.3 (H) mm (6.16” x 4.49” x 1.63”)
● I/O Connector 
    Two 20-pin removable screw-down terminals
● Power requirement 
    USB power (5 V @ 400 mA)

Ordering Information
● RST-20P
    One pair of 20-pin removable
    screw terminals
● USB-2M-L
    2 M USB Type A to USB Mini-B cable
    with lockable connector