SEL-2894

Interface Converter

Transfer SEL Mirrored Bits communications via an IEEE C37.94 fiber-optic link through a communications multiplexer. Or, convert other EIA-232 serial links to IEEE C37.94 optical fiber links for improved safety, signal integrity, and longer distances.

Starting at

$507

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EIA-232 to Fiber-Optic Interface

Interface asynchronous EIA-232 devices with synchronous networks through IEEE C37.94 compliant multiplexers or transfer switches. The IEEE C37.94 standard provides plug-and-play transparent communications between different manufacturers' teleprotection and multiplexer devices. The SEL-2894 uses 850 nm wavelength optics.

SEL Mirrored Bits Communications

Connect the SEL-2894 to any relay with Mirrored Bits communications, and transport at data rates from 300 to 19200 bps with less than 375 µs delay, back-to-back.

Safety and Security

Install fiber-optic connections to isolate communications from ground potential rise and electrical interference.

SEL-2894 Features

EIA-232 Connection
LED Indicators
IEEE C37.94 Fiber-Optic Connection

SEL-2894 Details

High-Speed Communications
The SEL-2894 has very low latency adding only 375 µs of through delay back-to-back. It works with EIA-232 signals from 300 bps to 19,200 bps. Three LED Indicators
TX and RX green LEDs show incoming and outgoing fiber-optic states. A standard yellow alarm LED indicates a transmission problem. Selectable Time Reference
A side-selector switch on the SEL-2894 configures the internal clock for either external or internal time reference. Flexible Power Supply
The converter connects directly to a standard 9-pin serial port and receives power directly on Pin 1 so no external power is required when used with SEL relays. The converter can also receive power from an external supply when connected to other devices.

2894MXX

Price: $506.44

Interface asynchronous EIA-232 devices with synchronous networks through IEEE C37.94-compliant multiplexers or transfer switches.

View configuration

Use an SEL Transceiver Mounting Kit and adapter cable when connecting the transceiver to IEDs with an RJ-45 male serial connector or when the mounting depth is an issue (e.g., in switchgear applications). The following kits provide a simple and secure way to remote-mount the transceiver away from the host connector:

Kit Part Number: 915900573SEL Transceiver Mounting Kit Components: Mount onlyApplication: All applications

Kit Part Number: 915900574SEL Transceiver Mounting Kit Components: Mount and SEL-C478A cable (6 ft, RJ-45 to DB-9 female)Application: Connect to SEL-3350, SEL-3355, and SEL-3360 Automation Controllers or an SEL-851 relay

Kit Part Number: 915900575SEL Transceiver Mounting Kit Components: Mount and SEL-C641 cable (6 ft, DB-9 male to DB-9 female)Application: Connect to an SEL IED with a DB-9 interface