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.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Local Interface | RS-232, DB9 female connector |
| Field Interface | RS-422 / RS-485, 5-pin removable screw terminal block |
| Baud Rate | 300 bps to 115200 bps |
| Data Format | 7/8 data bits, 1/2 stop bits; none / even / odd parity |
| Isolation Rating | 2500 VAC between RS-232 and RS-485/422 sides |
| Power Supply | Self-powered from RS-232 RTS/DTR signals; auxiliary 5–12 VDC external power option |
| RS485 Bus Capacity | Max 32 nodes per segment |
| Termination | 120 Ω termination resistor selectable via DIP switch |
| Max Cable Length | 1200 m at low baud rate |
| Operating Temperature | -20 °C to +60 °C |
| Protection Class | IP20, cabinet mounting only |
| Mounting | DIN rail TS-35 |
| Certification | CE, suitable for Tricon SIL3 safety system architecture |
| Hot Swap | Not supported |
Product Introduction
TRICONEX MA2211-100 is a dedicated media adapter built for Tricon CIM communication interface modules within Triconex TMR safety systems. It converts short-range RS-232 signals into robust differential RS-422 or RS-485 signals, extending communication distance and enabling multi-drop bus connections to field devices. Galvanic isolation blocks common-mode noise and ground loop interference, which is critical for ESD and EGP safety loops in hazardous process areas. The unit can draw power directly from RS-232 handshake lines for simple installations, or use auxiliary DC power if the host CIM does not assert RTS/DTR. DIP switches control bus termination and signal configuration for 2-wire or 4-wire serial wiring.
MA2211-100
MA2211-100
Application Scenarios & Field Experience
This adapter is widely used to extend serial communication for Tricon SIS controllers in process safety applications.
- Oil & gas ESD systems: Connect remote shutdown valves, fire & gas detectors over long RS485 bus
- Refinery compressor anti-surge control: Serial links to local panel transmitters and auxiliary controllers
- Power plant boiler safety systems: Modbus serial communication between Tricon CIM and field instruments
- Chemical plant SIL3 safety interlocks: Isolated serial communication to avoid ground loop trips
A petrochemical site experienced intermittent communication dropout between the Tricon CIM and remote gas detectors. The original adapter lacked proper isolation and suffered ground loop noise. After replacement with MA2211-100 and enabling the 120Ω termination at the far bus end, communication became stable even under heavy variable frequency drive interference.
Standard Operating Procedure (SOP) for Quality Control
- Visual Inspection: Check DB9 port, terminal block, housing, DIP switches; verify no cracked plastic, bent pins or burn marks.
- Label & Revision Check: Confirm part number MA2211-100 and hardware revision match Tricon CIM compatibility matrix.
- Isolation Continuity Test: Verify isolation barrier between RS-232 and RS485 circuits.
- Serial Communication Test: Connect to test host, validate all baud rates, parity settings, and data transmission without packet loss.
- DIP Switch Function Check: Confirm termination resistor activates correctly when switched on.
- ESD Packaging: Seal in anti-static shielding bag with foam cushioning and ESD warning labels.
Frequently Asked Questions (FAQ)
Q1: Can MA2211-100 work with general-purpose PLCs or non-Tricon serial devices? A: It can convert RS232 to RS485 for generic devices, but it is qualified and validated for Tricon CIM modules in safety loops. For SIL-rated safety circuits, use only within the Tricon approved system architecture.
Q2: Does it require an external power supply? A: Normally it runs self-powered from RTS/DTR handshake lines of the RS-232 port. If the host does not drive these control signals, apply 5–12 VDC auxiliary power.
Q3: What is the warranty term? A: 12 months warranty from shipment date. Warranty excludes damage from reverse polarity, overvoltage, miswiring, and surge damage on the field bus.
Q4: Can I use it for both 2-wire and 4-wire RS485? A: Yes. For 2-wire RS485, externally tie TX+ to RX+ and TX- to RX-. 4-wire mode uses separate transmit and receive pairs.
Q5: Can I replace this adapter while the SIS rack remains online? A: Hot swap is not supported. Loss of serial communication may trigger safety alarms or process trips. Perform replacement during approved shutdown or bypass conditions.
