SERIES AP470 ACROPACK
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 7 -
http://www.acromag.com
- 7 -
www.acromag.com
Programmable Debounce (all 48 channels) - The event sense input
circuitry includes programmable debounce times for all 48 channels.
Debounce time is the duration of time that must pass before the
input transition is recognized as valid. This helps prevent false event
detections and increases noise immunity.
CMOS (TTL Compatible) - Input threshold is at TTL levels and
includes hysteresis. I/O circuitry uses CMOS technology. As such,
output levels are CMOS compatible, even while sinking high current.
Output Read-back Function – Read-back buffers are provided that
allow the output port registers to be read back.
High Output Sink Capability - All outputs may sink up to 15mA with
a voltage drop ≤ 0.5V.
Outputs are “Glitch-Free” - Unlike some competitive units, the
outputs of this device do not “glitch” (momentarily turn on) upon
power-up or power-down for steady and safe control.
Open Drain Outputs Include Pull-ups - All outputs include 4.7K pull-
ups to +5V.
Overvoltage Protection - Individual I/O channels include over-
voltage clamps for increased ESD & transient protection.
High Impedance Inputs - High impedance inputs minimize input
current and loading of the input source.
No Configuration Jumpers or Switches - All configuration is
performed through software commands with no internal jumpers to
configure or switches to set.
1.3.3 Key Features PCIe Interface
PCIe Bus – The AP module includes a PCI Express Generation 1
interface operating at a bus speed of 2.5 Gbps with one lane in each
direction.
Compatibility – PCI Express Base Specification v2.1 compliant PCI
Express Endpoint.
1.4 Signal Interface Products
This AcroPack Module will mate directly to all Acromag AP carriers. Once
connected, the module is accessed via a front panel connector on the carrier
board.
The cables and termination panels are also available. For optimum
performance with the AP470 digital I/O module, use of the shortest possible
length of shielded I/O cable is recommended.