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Beckhoff Terminal Box Module IP2321-B520
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Specifications
| Category/version | Fieldbus systems, DeviceNet |
| Type/signal | - |
| Channels | 8 |
| Value range (digital/encoder) | 24 V |
| Value range (analog) | - |
| Output current | 2 A |
| Communication | DeviceNet |
| Technologies/ Highlights | - |
| Approvals | UL approvals |
| Input/output specification (digital) | positive switching, EN 61131-2, type 2 |
| Filter (digital) | 3.0 ms typ. |
| Signal resolution (analog) | - |
| Measurement error/ uncertainty (analog) | - |
| Sampling rate/ conversion time (analog) | - |
| Sampling type (analog) | - |
| Ground reference (analog/encoder) | - |
| Sensor supply (encoder) | - |
| Incr. limit frequency (encoder) | - |
| IO-Link Port Class | - |
| Housing | plastic housing, width 30 mm |
| Wiring | 2-wire, 3-wire |
| IP protection rating | IP65, IP66, IP67 |
| Connection method (signal) | M8 |
| Connection method (bus interface) | M12 |
| Connection method (power supply) | M8 |
| Explosion protection | not intrinsically safe |
Number of channels: 4 inputs and 4 outputs
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- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
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- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: What quality certificates or compliance documentation can be provided with the shipment?
A: Upon request, we provide standard manufacturer compliance documentation, including Certificates of Conformance (CoC), factory inspection reports, and CE/RoHS certification data sheets to ensure alignment with international regulatory and safety standards.
Q: Does OKmarts offer volume discounts, corporate account tier pricing, or contract pricing?
A: Yes, we offer tailored B2B quotation frameworks. Procurement managers can submit a Request for Quote (RFQ) directly through the platform or contact a dedicated account manager to unlock tiered volume discounts and wholesale pricing structures.
Q: Are software licenses, firmware updates, and configuration files included with hardware like HMIs and PLCs?
A: Hardware units ship with standard factory-default firmware. For proprietary programming software or specific firmware flashes required for legacy system compatibility, buyers must consult our technical support team during procurement to confirm licensing terms.
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A: Yes, we support over 135 currencies and dozens of payment methods, including credit cards (Visa, MasterCard, AMEX, UnionPay, and Discover), TT, PayPal, Stripe, and more. On the checkout page, you can select your preferred payment method for payment. You can contact our customer service for any payment-related questions or concerns.
Q: How can I check the stock status of a product?
A: On the product details page, you can check the stock status of the item. If a product is temporarily out of stock, we will restock it as soon as possible or provide a pre-order option.







