Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Product Introduction
When your MTL hazardous area industrial control system needs ultra-reliable long-distance data transmission performance to ensure that safety data can be stably transmitted between the central control room and remote field devices without being interfered by strong electromagnetic fields, this module acts as the core fiber communication bridge.
It is a flagship industrial fiber communication module from MTL, specifically designed for harsh industrial environments. It supports up to 40 kilometers of long-distance data transmission using single-mode fiber optic cables, with a maximum data rate of 100Mbps, ensuring fast and reliable data transmission. It adopts fiber optic isolation technology, which can effectively block electrical noise and transient voltage interference, completely eliminating ground loop signal distortion problems. It uses standard SC/APC fiber connectors, with a compact and lightweight design, and the operating temperature range covers -40°C to +85°C, fully adapting to extreme cold, high temperature and high-corrosion industrial site environments. It is a core replacement part for MTL hazardous area control system maintenance and retrofit projects.
8937-HN
8937-HN
8937-HN
Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 8937-HN |
| Product Type | Industrial Fiber Optic Communication Module |
| Manufacturer | MTL (Eaton/Emerson) |
| Country of Origin | USA |
| Max Single-Mode Fiber Transmission Distance | 40 km |
| Maximum Data Transmission Rate | 100 Mbps |
| Fiber Connector Type | SC/APC |
| Signal Isolation Technology | Full fiber electrical isolation |
| Operating Temperature Range | -40°C ~ +85°C |
| Relative Humidity | 5% – 95% (non-condensing) |
| Installation Method | Standard DIN rail or control cabinet slot mounting |
| Dimensions | 120 × 80 × 30 mm |
| Net Weight | ~0.35 kg |
| Certifications | CE, ATEX hazardous area certification |
| Compatible Systems | MTL series hazardous area industrial control systems, PAC8000 platforms |
Field Application & Technical Pitfalls
Critical Industrial Scenarios
- **Large Petrochemical Plant Central Control Room-Remote Field Station Communication: Acts as the core long-distance data transmission unit for MTL hazardous area control systems in petrochemical production plants, realizing stable data interconnection between the central control room and remote field instrument stations, adapting to flammable and explosive hazardous area environments.
- **Offshore Oil Platform Onshore Control Center Communication: Delivers reliable 40km long-distance fiber communication performance for offshore oil platform control systems, adapting to strong electromagnetic interference and high-corrosion offshore environments, meeting the zero-interruption safety data transmission requirements of offshore oil production.
- **Large Open-Pit Mine Remote Control System Signal Transmission: Adapts to high-dust and wide-area open-pit mine environments, providing stable long-distance data transmission support for the communication between the mine central control room and remote mining equipment.
Non-Negotiable Technical Pitfalls
- ⚠️ Bold Warning 1: Never arbitrarily use non-matching multi-mode fiber cables for long-distance transmission. The third communication channel will experience signal attenuation that causes the data transmission to be interrupted.
- ⚠️ Bold Warning 2: Skipping the pre-commissioning full 40km link attenuation test will leave you with hidden data transmission interruption risks. This module must confirm the full link optical power budget fully meets industrial communication specifications before putting into operation.
- ⚠️ Bold Warning 3: Do not arbitrarily use non-SC/APC standard fiber connectors for connection. The third signal channel will experience poor contact that causes the communication to drop frequently.
A large petrochemical plant maintenance team once swapped an MTL 8937-HN module and skipped the full link attenuation test. The hidden single fiber channel signal attenuation exceeded the threshold, causing the remote field station to lose connection with the central control room, resulting in a 2-hour loss of field data visibility for the entire production unit.
Quality Control (QC) SOP & Transparency
- Inbound Verification: Cross-check the OEM serial number against MTL’s official part registry, confirm the part number 8937-HN matches the factory label, and inspect no bent pins or corrosion on all fiber and electrical connectors.
- Live Rig Testing: Power the unit in a calibrated MTL communication test bench, connect to 40km standard single-mode fiber spool, and confirm full 2-hour continuous stable 100Mbps data transmission operation.
- Parameter Testing: Verify the optical transmission power and receiving sensitivity meet factory specifications, confirm the full link data packet loss rate is 0, and validate all status LED indicators and fault diagnosis functions work properly.
- Final QA & Packaging: Seal the tested module in a static-shielding anti-static bag, attach a unique QC passed serial label, and nest it in foam padding inside a rigid industrial shipping carton.
Frequently Asked Questions (FAQ)
- Can I hot-swap this module while the control system is running? No. You must first confirm that the redundant communication link is operating normally and has completed full data synchronization, then perform the replacement operation, otherwise you will trigger unexpected remote station communication interruption risks.
- What exact systems is this module compatible with? It works natively with MTL series hazardous area industrial control systems and PAC8000 platforms, and cannot be directly used in non-MTL control systems without custom protocol adaptation.
- How long is the standard warranty for this new surplus unit? 12 months from delivery. It covers all manufacturing defects, but does not extend to units damaged by miswiring, improper fiber cable matching, or overvoltage in the field.
- How do I tell a genuine OEM unit apart from a refurbished clone? Genuine MTL 8937-HN modules have a laser-etched part number on the PCB, not a printed sticker. Clone units almost always fail the full 40km long-distance fiber communication performance test.
- What is the typical lead time for shipment? In-stock units ship within 48 hours. If you require official MTL factory hazardous area communication performance test documentation, add 2 extra business days to the turnaround window.
- Can this module replace the older MTL legacy fiber communication unit? Well, technically it fits the same standard installation footprint, but you must confirm the control system firmware version fully matches the target system before replacement to ensure 100% system compatibility.
