ADLINK PXI-7921 - Manual (Page 8)

2 • Introduction
1.2 Applications
• Industrial ON/OFF control
• External high power relay driving and signal switching
• Laboratory automation
• Industrial automation
• Switch contact status sensing
• Limit switch monitoring
• Cooperating with other modules such as A/D and D/A peripherals to
implement a data acquisition and control system
1.3 Specifications
Relay Output
• Number of channels: 24
• Relay type: DPDT (2 Form C), non-latching
• Switching capacity:
• Max. switching current: 2A
• Max. switching voltage: 220V
DC
, 125V
AC
• Max. switching power: 50VA, 60W
♦ Max. carrying current: 2A
• Failure rate: 10µA
• Contact resistance: 100mΩ max.
• Relay set/reset time
• Operate time: 4ms max.
• Release time: 4ms max.
• Bounce time: 1ms max.
• Expected life:
• Mechanical life: 10
8
operations min.
• Electrical life: 5x10
5
operations min. (1A @ 30V
AC
, resistive load)
• Data transfer: Programmed I/O
Auxiliary Digital I/O
• Numbers of channel: 3 inputs/outputs
• Compatibility: 3.3 V/TTL (5V tolerant)
• Data transfers: programmed I/O
Handshaking Signals
• Programmable polarity
• Logic level: 3.3 V/TTL (5V tolerant)
• Trigger In source: TRG_IN, PXI trigger bus, PXI star trigger in
• Scanner Advanced destination: S_ADV, PXI trigger bus, PXI star
trigger out