SEL-2812

Fiber-Optic Transceivers With IRIG-B

Improve safety, signal integrity, and reliability by using two optical fibers instead of wire to transfer bidirectional serial data plus an IRIG-B time synchronization signal. Apply for instrumentation, protection, automation, and other applications that benefit from economical fiber-optic links up to 4 km long.

Starting at

$289

Configure and order

View popular models

Fiber-Optic Link

Connect a pair of transceivers and an SEL-C808 Multimode 62.5/125 µm Core Fiber-Optic Cable with ST connectors for EIA-232 communication between devices over a fiber-optic link. Create a link from 1 m to 4 km in length using SEL-2812 Fiber-Optic Transceivers With IRIG-B.

Fast Data Rates

Transfer data at rates up to 115 kbps with the SEL-2812. The SEL-2812 transfers data and IRIG-B time codes.

Safe and Secure Communications

Isolate communications connections from ground potential rise and electrical interference. The SEL-2812 also has an option for conformal coating, which provides extra protection from the effects of chemical contaminants in the air to printed circuit boards.

SEL-2812 Details

Transfer Data Plus Synchronize Time Economically
Use data rates up to 115.2 kbps for a full duplex serial link with up to 4 km of multimode optical fiber. Use the same transceivers/modems and fibers to simultaneously transfer simplex IRIG-B time code.Apply Easily
Plug the transceiver/modem directly onto a standard 9-pin serial connector (DB-9). No special mounting is required. The SEL-2812 receives power from the host device via the connector; no separate power supply or power wiring is needed. It uses popular ST connectors and requires no jumpers or settings.Improve Communications Reliability
Apply in harsh electrical and physical environments. The SEL-2812 is far less susceptible to EMI/RFI than copper links, with a maximum bit error rate of 10 -9.Improve Safety
Provide improved isolation from ground potential rise and other electrical hazards compared to copper connections. The SEL-2812 is an eye-safe, Class 1 laser product.

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