# Title: Array 3313 RS-232C to RS-485 Converter for Multidrop Networks
## Description: Professional RS-232 to RS-485 Conversion The Array 3313 RS-232C to RS-485 Converter enables seamless connection between PC serial ports and multidrop RS-485 networks. Designed specifically for Array Electronic loads and power supplies, this converter extends communication range up to 1200 metres whilst supporting up to 32 devices on a single network. Key Technical Specifications Parameter Specification Input Interface RS-232C (DB-9 Male) Output Interface RS-485 (Terminal Block) Maximum Distance 1200m (4000 feet) Network Devices Up to 32 nodes Data Rate Up to 115.2 kbps Power Supply Port-powered from RS-232 Isolation Optical isolation Wiring Quick-Start RS-485 Terminal Block Connections Connect the RS-485 lines using twisted pair cable: Terminal A (Data+) → RS-485 A line Terminal B (Data-) → RS-485 B line Terminal GND → Signal ground Important: Install 120Ω termination resistors at both ends of the RS-485 network for optimal signal integrity. Multidrop Network Configuration The 3313 converter enables PC connection to multiple Array Electronic devices in a daisy-chain topology. Each device requires a unique address (0-254) for individual control and monitoring. The differential signalling provides excellent noise immunity in industrial environments. Compatible with Array Electronic: 3710A/3711A Electronic Loads 3644A/3645A/3646A Power Supplies 364XA Series DC Power Supplies 371X Series Programmable Loads Installation Notes The converter requires no external power supply when connected to a standard PC serial port. The optical isolation protects connected equipment from ground loops and voltage spikes. LED indicators show power and communication status for easy troubleshooting. RTS control enables automatic transmit/receive switching for half-duplex operation.
## Product type: PC Adapter
## Vendor: Array Electronic Co Ltd
## Tags: Array, array-electronic-co-ltd, Electronic Load Accessory, Power Supply Accessory
## Price range: 57.62 - 57.62 GBP
## Link: https://thedebugstore.com/products/array-electronic-3313-rs-232c-rs-485-adapter-uk
## Options
- Title: Default Title
## Collections
- [New Products](https://thedebugstore.com/a/llms/collections/new-products-debug-store)
- [Array Electronic Co. Ltd](https://thedebugstore.com/a/llms/collections/array-electronic-catalogue)
- [Power Supply Accessories](https://thedebugstore.com/a/llms/collections/power-supply-accessories-catalogue)
- [Electronic Load Accessories](https://thedebugstore.com/a/llms/collections/electronic-load-accessories-catalogue)
- [PC Interface Cards](https://thedebugstore.com/a/llms/collections/pc-interface-cards-debug-store)
## Variants
- Default Title, SKU: 3313, Available: yes, Inventory: 2
## Metafields
- description_tag: Array 3313 converts RS-232C to RS-485 for multidrop networks. Control up to 32 devices over 1200m. Port-powered, optically isolated. Buy now at Debug Store.
- title_tag: Array 3313 RS-232C to RS-485 Converter | Industrial Multidrop Networks | Debug Store
- manufacturer: Array Electronic Co Ltd
- warranty: 12 months
- amazon_enable: TRUE
- amazon_title: Array 3313 RS-232C / RS-485 Adapter
- amazon_product_type: computercomponent
- amazon_block: FALSE
- amazon_prime_enable: FALSE
- amazon_search: Array Electronic Adapter
- amazon_uk_price: 60.5
- amazon_uk_currency: GBP
- amazon_de_currency: EUR
- amazon_de_price: 68.365
- amazon_fr_currency: EUR
- amazon_fr_price: 68.365
- amazon_es_currency: EUR
- amazon_es_price: 68.365
- amazon_nl_currency: EUR
- amazon_nl_price: 68.365
- amazon_it_currency: EUR
- amazon_it_price: 68.365
- amazon_se_curency: SEK
- amazon_se_price: 689.7
- amazon_product_id: 5055383600632
- amazon_product_id_type: EAN
- amazon_update: Update
- amazon_short_description: The Array Electronic 3313 RS-232C to RS-485 converts the RS-232C signals to RS-485 differenti alignals.
- amazon_long_description: The Array Electronic 3313 RS-232C to RS-485 converts the RS-232C signals to RS-485 differenti alignals.
- amazon_main_image: https://www.thedebugstore.com/images/product/Lg-Array-3313-01.jpg
- amazon_browse_node: 428655031
- related_products: 3710A,3711A,3644A,3645A,3646A,3311,3312,3314
- mpn: 3313
- backorder_label: If no stock is shown above, order now and we'll ship within 10 working days.
- google_product_category: 342
- condition: new
- custom_product: false
- mpn: 3313
- google_product_category: Electronics
- custom_label_0: PC Adapter
- warranty: 12 months
- brand: Array Electronic
- manufacturer: Array Electronic Co Ltd
- badge: No reviews
- widget:
- brands: gid://shopify/Metaobject/56189616351
- breadcrumbs: ["gid://shopify/Collection/267180835005","gid://shopify/Collection/267177492669","gid://shopify/Collection/400794091743"]
- customhs_code: 903190
- detailed_description: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"The Array Electronic 3313 RS-232C to RS-485 converts the RS-232C signals to RS-485 differenti alignals."}]}]}
- summary: The Array 3313 RS-232C to RS-485 Converter provides essential signal conversion for connecting PC systems to industrial RS-485 networks. Specifically designed for Array Electronic test equipment, this converter enables control of multiple electronic loads and power supplies from a single computer serial port. The converter features optical isolation for protection against ground loops and electrical interference. Port-powered operation eliminates the need for external power supplies, whilst LED status indicators simplify installation and troubleshooting. The robust design supports industrial temperature ranges and provides reliable communication over distances up to 1200 metres.
- key_feature_1: Converts RS-232C serial signals to RS-485 differential format for multidrop industrial networks.
- key_feature_2: Port-powered RS-232 to RS-485 conversion
- key_feature_2_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Multidrop capability enables control of multiple Array Electronic instruments"}]}]}
- key_feature_3: Communication range up to 1200 metres
- key_feature_3_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Differential RS-485 signalling extends range far beyond RS-232 limits"}]}]}
- key_feature_4: Optical isolation protection
- key_feature_4_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Protects equipment from ground loops and electrical interference"}]}]}
- key_feature_5: Automatic transmit/receive switching
- key_feature_5_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"RTS control handles half-duplex communication timing automatically"}]}]}
- key_feature_6: LED status indicators
- key_feature_6_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Visual confirmation of power and communication activity"}]}]}
- key_feature_7: Industrial temperature operation
- key_feature_7_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Reliable performance in harsh industrial environments 0°C to 50°C"}]}]}
- key_feature_8_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Multidrop capability enables control of multiple Array Electronic instruments"}]}]}
- key_feature_8: Supports up to 32 devices on single network
- why_people_choose_3_title: Plug-and-Play Operation
- why_people_choose_2_title: Multidrop Networking
- why_people_choose_1_title: Extended Communication Range
- why_people_choose_1: Enables control of remote instruments up to 1200 metres away from the PC
- why_people_choose_3: Port-powered design with automatic switching eliminates configuration complexity and external power requirements
- why_people_choose_2: Connects multiple Array Electronic devices using single twisted pair cable reducing wiring complexity
- 1572860: What Array Electronic devices are compatible with the 3313 converter?***SIMP***The 3313 is specifically designed for Array Electronic loads and power supplies including the 3710A/3711A electronic loads, 3644A/3645A/3646A power supplies, and 364XA/371X series instruments. Each device requires unique addressing for multidrop operation.
- 1572861: How many devices can be connected to a single 3313 converter?***SIMP***The converter supports up to 32 devices on a single RS-485 network. Each device must have a unique address (0-254) configured through its front panel or software interface.
- 1572862: What cable type should I use for RS-485 connections?***SIMP***Use twisted pair cable with 120Ω characteristic impedance. Install 120Ω termination resistors at both network ends. For distances over 100 metres, use shielded twisted pair cable with proper grounding.
- 1572863: Does the 3313 require external power?***SIMP***No, the converter draws power directly from the PC's RS-232 port (DTR and RTS lines). This port-powered design eliminates external power supply requirements and simplifies installation.
- 1572864: What is the maximum communication distance?***SIMP***The RS-485 interface supports distances up to 1200 metres (4000 feet) at standard baud rates. Higher speeds may require shorter distances following the rule: speed × distance ≤ 10^8 bits/second × metres.
- 1572866: How do I configure device addresses on the network?***SIMP***Each Array Electronic instrument has address configuration through its menu system. Press SHIFT + RS-232/485 to access communication settings and assign unique addresses from 000 to 254.
- 1572867: What baud rates are supported?***SIMP***The converter supports standard baud rates from 300 bps up to 115.2 kbps. Higher speeds work best over shorter distances, whilst lower speeds provide more reliable communication over maximum range.
- 1572868: Can I use the 3313 with non-Array Electronic equipment?***SIMP***The converter will work with any RS-485 device using standard protocols, though it's optimised for Array Electronic instruments. Ensure compatible communication parameters and addressing schemes.
- 1572869: How do I troubleshoot communication problems?***SIMP***Check LED indicators for power and activity status. Verify termination resistors are installed at network ends. Ensure proper RS-485 polarity (A to A, B to B) and unique device addresses.
- 1572871: What protection features are included?***SIMP***The converter includes optical isolation to prevent ground loops, overcurrent protection, and ESD protection. LED indicators show power and communication status for easy diagnostics.