II. Model Interpretation

PXI: 3U single slot, standard PXI bus (compatible with PXIe mixed slots)

6508: 65xx series (static DIO), 96-channel high-density version

Core Architecture: 4 pieces of 24-bit PPI (programmable peripheral interface), each piece divided into 3 8-bit ports (A/B/C)

Part Number: 777598-01

Status:discontinued； 

III. Technical Parameters (25℃)

1. Digital I/O (DIO)

Channels： 96 bidirectional (5 V TTL/CMOS)， divided into 12 8-bit ports

Drive Capacity： 2.5 mA (sinking / sourcing current) per channel

Level： High ≥ 2.0 V， Low ≤ 0.8 V

Input Resistance： 10 kΩ (typical)

Pull-up / Pull-down： Optional (via jumper W1)， default pull-up

Power-On State： Configurable (high / low / open drain)

Transmission Rate： Up to 50 KB/s (software timing)

2. Port Configuration

4×PPI (82C55)， each PPI contains 3×8-bit ports (A： input/output； B： input/output； C： control/status/handshake)

Supports 2-wire handshake， interrupts， programmable I/O transmission

3. Physical and Environmental

Size： 3U single slot (22×124×126 mm)

Operating Temperature： 0–55℃

Power Consumption： 400 mA @ +5 V (approx. 2 W)

Calibration： No regular calibration (pure digital module)

IV. Interface and Communication Configuration

Front Panel Interface： 100-pin D-Type female connector (0.050 pitch)

Adapter Cable： R1005050 (100-pin to 2×50-pin)， SH100-100

Terminal Box： CB-100， SCB-100A

Bus： PXI (PCI slave mode， no DMA)

Driver： NI-DAQ (traditional)， supports LabVIEW， C/C++， Visual Basic

Synchronization： No hardware trigger， dependent on software handshake

V. Core Functions

Ultra-high Density Digital I/O： 96-channel single card， covers a large number of switches / sensors / actuators， saves slots and costs.

Flexible Port Partitioning： 12 independent 8-bit ports， can be grouped configured for input/output， suitable for different peripherals.

Reliable Static Control： 5 V TTL compatible， 2.5 mA drive， suitable for relays， LEDs， switch quantity sensors.

Handshake and Interrupt Support： 2-wire handshake simplifies timing synchronization with peripherals， interrupts improve response efficiency.

Power-On State Controllability： Avoids incorrect actions during system startup， enhances safety.

VI. Application Scenarios

Industrial ATE Switch Matrix： Large-scale relay/contactor control， PCB test channel switching.

Sensor Array Monitoring： 96-channel switch quantity / proximity switch / photoelectric sensor synchronous acquisition.

Equipment Status Monitoring： PLC expansion I/O， cabinet indicator lights， valve/motor start/stop control.

Laboratory Automation： Multi-station fixture control， sample positioning， safety interlock signals.

General Digital Measurement and Control： Mixed systems requiring high density， low cost， static digital I/O.

VII. Installation and Maintenance Instructions

Installation and Power On

Disconnect power， ground the chassis； power on after NI-DAQ self-check， no preheating required.

Operating Temperature： 0–55℃， keep the air duct unobstructed， avoid high temperature.

Connection and Operation

Avoid frequent plugging and unplugging of 100-pin interface， recommend using CB-100 terminal box for intermediate transfer.

Output drive **≤ 2.5 mA / channel**, preventing overcurrent damage; input voltage **≤ 5.5 V**.

Long-distance signals use shielded twisted pair cables to reduce interference; keep away from strong electricity / motors.

Daily maintenance

Keep the interface clean, prevent dust accumulation during long-term inactivity; no calibration required, regularly check the tightness of the connection terminals.