I-2542-B is created to double the existing bandwidth, while effectively reducing the cost of creating a new fiber optic infrastructure. Its design comes from a series of single-Strand fiber Converters supports Wavelength Division Multiplexing (WDM) technology that allows two independent data communication channels to transmit and receive over one standard, single mode and fiber optic line. The module is 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 15km, making it a perfect solution in applications where transmission must be protected from electrical exposure, power surges, lightning strikes or chemical corrosion.
- Automatic RS-485 Direction Control
- Optical fibers enable transmission of 2 km for I-2541 ,15 km for
I-2542-A/I-2542-B and 25 km for I-2542-A25/I-2542-B25
- Avoids lightning strikes and EMI/RFI interference
- Supports +10 VDC ~ +30 VDC
- ESD Protection for the RS-232/422/485 Data Line
- DIN-Rail Mounting
- Supports operating temperatures from -25°C ~ +75°C
Single-Mode; SC connector
TX: 1310, RX: 1550 nm for I-2542-A/I-2542-A25
TX: 1550, RX: 1310 nm for I-2542-B/I-2542-B25
8.3/125, 8.7/125, 9/125 or 10/125 Î¼m
15 km for I-2542-A/I-2542-B
25 km for
(9/125 Î¼m recommended)
RS-232 (The RS-232, RS-422 and RS-485 cannot be used simultaneously)
TxD, RxD, GND
RS-422 (The RS-232, RS-422 and RS-485 cannot be used simultaneously)
TxD+, TxD-, RxD+, RxD-
RS-485 (The RS-232, RS-422 and RS-485 cannot be used simultaneously)
RS-422/485 Transmission Distance
Max. 1,200 m at 9.6 kbps; Max. 400 m at 115.2 kbps (Belden 9841 2P twisted-pair cable, if different cables are used, the transmission distance may change)
Self-Tuner Asic Inside
Fixed baud rate setting via rotary switch
1200 ~ 115200 bps
Removable 8-Pin Terminal Block
Input Voltage Range
+10 VDC ~ +30 VDC (Non-isolated)
Fire-Retardant Materials (UL94-V0 Level)
Dimensions (W x L x H)
33 mm x 89 mm x 107 mm
-25°C ~ +75°C
-30°C ~ +75°C
10 ~ 90% RH, non-condensing
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