Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 3BHT410082R0001 (SE920AN equivalent) |
| Manufacturer | ABB (Switzerland / Finland / Germany origin) |
| Product Type | Advant Bus Extender / MB300 Fieldbus Repeater Module |
| Compatible Bus | MasterBus 300 (Advant Fieldbus / MB300 serial synchronous bus) |
| Applicable Systems | ABB Advant OCS, Advant Controller 410/450, Symphony System, S100 Remote I/O |
| Bus Interface | 2× Advant Fieldbus ports (DB9 female or RJ45, batch-dependent; optional ST/BFOC multimode fiber) |
| Transmission Media | STP shielded twisted pair (Belden 9841 or equivalent) / 62.5/125 μm multimode fiber (fiber version) |
| Max Segment Distance | ≤500 m per segment (twisted pair); chained extension up to 1200 m+; fiber version 2 km+ |
| Baud Rate Support | MB300 typical 187.5 kbps ~ 1.5 Mbps (transparent relay, frame content unmodified) |
| Signal Processing | Amplification + re-timing + galvanic isolation (physical layer only, no protocol conversion) |
| Power Supply | 24 V DC (allowable range 21.6 ~ 26.4 V DC) |
| Power Consumption | ≤3 W (typical 1.5 ~ 2.5 W) |
| Port Isolation | ≥1500 V DC optocoupler / transformer isolation between ports and between ports and power |
| Status Indicators | PWR LED, Link A / Link B LED (green = link OK, blinking = activity, red = fault) |
| Installation Method | 35 mm DIN rail (EN 60715) |
| Operating Temperature | -20°C to +60°C (some batches labeled 0~60°C) |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
| Protection Rating | IP20 (indoor control cabinet installation) |
| Certifications | CE / UL / CSA / RoHS (batch-dependent) |
| Lifecycle Status | EOL (End of Life); available as New Surplus (NOS) or tested-good spare |
| Warranty | 12 months |
Main Features and Advantages
Transparent physical-layer signal regeneration:
The ABB 3BHT410082R0001 performs three core functions—signal amplification, re-timing, and electrical isolation—without altering a single bit of the MB300 frame. This transparency means that the upstream Advant controller and the downstream remote I/O station are completely unaware of the ABB 3BHT410082R0001 in the communication path. There is no MAC address to configure, no protocol parameter to set, and no firmware mismatch risk. As soon as the ABB 3BHT410082R0001 is powered on and the bus is connected, it begins relaying traffic seamlessly.
Extended communication reach:
Native Advant Fieldbus (MB300) segments are limited to approximately 500 meters over shielded twisted pair. By inserting the ABB 3BHT410082R0001 at the segment boundary, the communication distance can be extended to 1200 meters or more through chained repeaters. For applications demanding even greater reach—such as water dispatch centers communicating with remote pumping stations several kilometers away—the fiber-optic variant of the ABB 3BHT410082R0001 (equipped with ST/BFOC multimode interfaces) extends the link beyond 2 km while completely eliminating lightning-induced surge coupling.
Galvanic isolation for ground-loop elimination:
One of the most damaging phenomena in industrial communication is the ground potential difference between a control room and a remotely located I/O rack. Even small differences of a few volts can saturate the common-mode range of the transceiver and cause intermittent communication failures. The ABB 3BHT410082R0001 incorporates ≥1500 V DC optocoupler and transformer isolation between its two Advant Fieldbus ports and between the ports and the 24 V DC power supply. This breaks the ground loop, blocks common-mode interference, and ensures that the ABB 3BHT410082R0001 delivers pristine differential signals to the downstream segment.
Robust industrial construction:
The ABB 3BHT410082R0001 is built for continuous operation in control-cabinet environments, with a -20°C to +60°C operating temperature range, 5% to 95% non-condensing humidity tolerance, and IP20 protection. Its 35 mm DIN-rail mount (EN 60715) enables quick installation alongside other cabinet components. Three front-panel LEDs—PWR, Link A, and Link B—provide at-a-glance status: green confirms link integrity, blinking indicates active traffic, and red signals a fault condition, allowing maintenance personnel to diagnose communication issues without specialized tools.
Low power, high reliability:
Consuming a maximum of 3 W (typically 1.5~2.5 W) from a standard 24 V DC supply (21.6~26.4 V DC allowable), the ABB 3BHT410082R0001 places minimal burden on the cabinet power budget. Its passive, solid-state design—with no fans, no moving parts, and no user-serviceable internals—translates to an exceptionally long service life. Supported baud rates span the full MB300 range of 187.5 kbps to 1.5 Mbps, ensuring compatibility with both legacy low-speed configurations and modern high-throughput Advant OCS deployments.
Critical spare for legacy Advant systems:
Because ABB has declared the ABB 3BHT410082R0101 as EOL, the ABB 3BHT410082R0001 (SE920AN) has become a strategically important spare part. A single failed bus extender silences an entire remote I/O segment, causing the main controller to continue running but losing all I/O signals from the affected expansion rack—a classic single point of failure in the communications chain. By maintaining buffer stock of the ABB 3BHT410082R0001, plants protect the continuity of their Advant OCS and Symphony control architectures without undertaking costly system-wide migrations.
Reviews
There are no reviews yet.