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32‑channel opto‑isolated open‑collector output for PCI Express. The DO‑32L‑PE supports 12‑24 VDC output with 35VDC/100mA per channel, surge and overcurrent protection, and common terminals per 16 channels. Windows/Linux drivers included. From Contec Americas.
The DO‑32L‑PE provides 32 opto‑isolated open‑collector output channels on a single PCI Express board. Supporting 12‑24 VDC output with 35VDC/100mA per channel, it is ideal for industrial control, factory automation, and machine interface applications. Common terminals are provided per 16 channels, allowing different external power supplies for each bank.
Industrial‑grade protection – Zener diodes protect against surge voltages, and an overcurrent protection circuit is included for every 8 output channels, ensuring robust operation in demanding environments.
Designed for systems requiring a moderate number of digital output points. The DO‑32L‑PE offers 32 channels in a single PCI Express slot, reducing system cost and complexity. The opto‑isolated design provides 1000Vrms isolation between the PCIe bus and output interfaces for excellent noise immunity.
| Specification | Detail |
|---|---|
| Model | DO-32L-PE |
| Output type | Opto‑isolated open‑collector (current sink, negative logic) |
| Output channels | 32 (16 channels share a common) |
| Output voltage | 35VDC (max) |
| Output current | 100mA per channel (max) |
| Residual voltage at ON | 0.5V max (≤50mA), 1.0V max (≤100mA) |
| Surge protector | Zener diode |
| Response time | 200µsec (max) |
| Connecting distance | 50m (typical, depends on wiring) |
| I/O address | Any 32‑byte boundary |
| Interrupt level | Not used |
| Boards per system | 16 (max) |
| Isolated voltage | 1000 Vrms |
| External circuit power supply | 12‑24 VDC (±10%) |
| Power consumption | 3.3VDC 450mA (max) |
| Bus specification | PCI Express Base Spec Rev. 1.0a x1 |
| Dimensions (mm) | 121.69(L) × 110.18(H) |
| Weight | 130g |
| Operating temperature | 0 – 50°C |
| Operating humidity | 10 – 90%RH (no condensation) |
| Standards | VCCI Class A, CE (EMC Class A, RoHS), UKCA |
| Included items | Product, manual |
| Datasheet version | As of January 2026 |
| Product Name | Model | Description |
|---|---|---|
| Shielded cable with 37‑pin D‑sub (both ends) | PCB37PS-05P / -15P / -3P / -5P | 0.5m / 1.5m / 3m / 5m |
| Flat cable with 37‑pin D‑sub (both ends) | PCB37P-1.5 | 1.5m |
| Shielded cable with 37‑pin D‑sub (one end) | PCA37PS-05P / -15P / -3P / -5P | 0.5m / 1.5m / 3m / 5m |
| Flat cable with 37‑pin D‑sub (one end) | PCA37P-1.5 / -3 | 1.5m / 3m |
| Screw terminal (M3×37P) | EPD-37A | Spring‑up type |
| Screw terminal (M3.5×37) | EPD-37 | Standard |
| General purpose terminal (M3×37P) | DTP-3C | — |
| Screw terminal (M2.5×37P) | DTP-4C | — |
| Signal monitor (32‑bit) | CM-32L | — |
* PCB37P or PCB37PS cable required for terminal units. Visit CONTEC website for latest options.
The DO‑32L‑PE is available through Contec Americas on a quote basis. Contact our sales team to discuss quantity, accessories, and integration with your industrial control systems.
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