Logicbus I-2541 Optical Fiber Serial Converter User Guide
- October 30, 2023
- Logicbus
Table of Contents
Logicbus I-2541 Optical Fiber Serial Converter User Guide
General Description
The I-2541 is an RS-232/422/485 to fiber optic converter that ensures data transmission security by using fiber optic transmission technology to provide immunity from EMI/RFI interference. The I-2541 is designed for RS-232/422 point-to-point connections and RS-485 multi-drop applications which require a signal to be transmitted for distances of up to 2Km (6,600 ft), and is a perfect solution in applications where transmission must be protected from electrical exposure, power surges, lightning strikes or chemical corrosion.
Specifications
- Fiber Port: ST (Multi-mode)
- Wavelength: 850nm
- Fiber Cable: 62.5/125µm
- Speed: Internal “Self Tuner”, auto switching Baud Rate, 300~115200 bps
- Transmission Distance: Signals can be transmitted up to 2Km.
- Isolation voltage: 3000V DC
- Optical isolation: 3570Vrms
- DIN rail mount for industrial usage
- Provides LEDs for network and power monitoring
- Dimensions: 32.30 x 99.00 x 77.50 mm (w x h x d)
- Power requirements: Unregulated +10V DC ~ +30V DC.
- Power consumption: 2.0W max.
- ESD Protection:
4KV Contact Discharge
8KV Air-Gap Discharge
Connectors & Cables
Tenninal
NO.| Pin name
---|---
TxD| F iber Tx D
RxD| Fiber RxD
1| Tx+/DATA +
2| Tx-/DATA-
3| Rx +
4| Rx-
5| NC
6| G ND
7| TxD
8| RxD
RS-232/422/485 Converter connection
Serial communication
RS-232 Signals| TxD, RxD, GND
RS-422 Signals| Tx+, Tx-, Rx+, Rx-
RS-485 Signals| Data+, Data-
Baud Rate| 300bps to 115.2kbps
Fiber Cables
The I-2541 uses a wavelength of 850nm and also supports MM (multimode) fiber
cables. A 62.5/125mm MM cable is recommended.
Interpreting the LED Indicators
| LED | Status | State | Interpretation |
|---|---|---|---|
| POWER | Power status | ON | Converter is on. |
| OFF | Converter is off. | ||
| TD | Transit Data | ON | Transiting on Fiber port. |
| OFF | No link or the link is faulty. | ||
| RD | Receive Data | ON | Receiving on Fiber port |
| OFF | No link or the link is faulty. |
Making Network Connections
Important note: RS-232/485/422 protocols cannot be used simultaneously.
The RS-485 pin assignment of the I-2541
TerminalNumber| TxD| RxD| 1| 2| 3| 4| 5|
6| 7| 8
---|---|---|---|---|---|---|---|---|---|---
Pin Name| Fiber TxD| Fiber RxD| DATA+| DATA-| —|
—| —| —| —| —
The RS-422 pin assignment of the I-2541
TerminalNumber| TxD| RxD| 1| 2| 3| 4| 5|
6| 7| 8
---|---|---|---|---|---|---|---|---|---|---
Pin Name| Fiber TxD| Fiber RxD| Tx+| Tx-| Rx+|
Rx-| —| —| —| —
The RS-232 pin assignment of the I-2541
TerminalNumber| TxD| RxD| 1| 2| 3| 4| 5|
6| 7| 8
---|---|---|---|---|---|---|---|---|---|---
Pin Name| Fiber TxD| Fiber RxD| —| —| —| —|
—| GND| TxD| RxD
All pin assignments for the I-2541
TerminalNumber| TxD| RxD| 1| 2| 3| 4| 5|
6| 7| 8
---|---|---|---|---|---|---|---|---|---|---
Pin Name| Fiber TxD| Fiber RxD| Tx+ DATA+| Tx-
DATA-| Rx+| Rx-| NC| GND| TxD| RxD
Note: RS-232/485/422 protocols cannot be used simultaneously.
