Datasheet

APCI-3xxx Technical data

Logic input level: .......................................UH (max.): 30 V

UH (min.): 19 V

UL (max.): 14 V

UL (min.): 0 V

Input frequency: .........................................1 MHz (max.) at 24 V

Interruptible inputs:....................................Not available

4.3.4 Digital outputs (24 V

Number of channels: ..................................4 digital outputs

Optical isolation: ........................................1000 V (1 s tested)

Output type:................................................High-Side (load to GND)

(UDN2987)

Nominal voltage:........................................24 V

Supply voltage: ..........................................7 V - 35 V

Output current for each output:..................50 mA

Output saturation voltage:..........................2 V (max.)

Switching-on time:.....................................0.6 μs (max.) at R (load) = 480 ohm

Switching-off time: ....................................4 μs (max.) at R (load) = 480 ohm

Overtemperature (shut-down):...................165 °C (output driver)

Temperature hysteresis: .............................15 °C (output driver)

4.3.5 TTL inputs and outputs

NOTICE!

The TTL inputs and outputs are not optically isolated.

Please make sure that no signal from the peripherals

is connected to the inputs and outputs when the PC

system is switched off or being booted up or shut

down. This can be realised by means of a relay or tri-

state circuit between the peripherals and the TTL

inputs and outputs.

Number of I/O channels:............................24 (3 ports with each 8 channels)

Type: ..........................................................TTL

Logic input level:

UH (max.): .................................................5.5 V

UH (min.):..................................................2.0 V

UL (max.):..................................................0.8 V

UL (min.): ..................................................0 V

Input frequency (max.):..............................5 MHz

Measured with an Agilent function generator type 33220A with connection through the

screw terminal panel PX8001 and the connection cables ST370-16 and FB8001