SEL SEL-3405 High-Accuracy IRIG-B Fiber-Optic Transceiver

SEL-3405

High-Accuracy IRIG-B Fiber-Optic Transceiver

Send delay-compensated demodulated IRIG-B up to 4 km over fiber-optic cable with SEL-3405 High-Accuracy IRIG-B Fiber-Optic Transceivers, while maintaining better than 200 ns of accuracy from the time source to the end device.

Transceiver Mounting Options

Use an SEL Transceiver Mounting Kit and adapter cable when connecting the SEL-3405 to IEDs with an RJ-45 male serial connector or when the mounting depth is an issue (e.g., in switchgear applications).

These kits provide a simple and secure way to remote-mount the transceiver away from the host connector:

915900573—Mounting Kit for SEL Transceiver; includes mount only

915900574—Mounting Kit for SEL Transceiver; includes mount and SEL-C478A cable (6 ft, DB-9 female to RJ-45 male)

915900575—Mounting Kit for SEL Transceiver; includes mount and SEL-C641 cable (6 ft, DB-9 female to DB-9 male)

Adapter Cables

The SEL-3405 is compatible with any SEL clock. Use the SEL-C940 DB-9 to Dual BNC Male Cable to connect the device to an SEL-3400 IRIG-B Distribution Module.

Use one BNC connection to provide time to the SEL-3400 and the other to power the SEL-3405. Use the SEL-C942 DB-9 to BNC Male to Tinned Wires Cable to power the device using an SEL-9321 Power Supply.

SEL-3405

Use the BNC connection to input time to the end device or to receive time from a clock, and use the tinned wires for power.

The SEL-C941 cable will provide external power when power is unavailable through an IED or a clock serial port.

High-accuracy, no settings

Install the SEL-3405. and with no settings, the device will compensate for propagation delay in the fiber.

Introduce less than 200 ns of inaccuracy, over distances as far as 4 km away.

Electrical Isolation for IRIG-B Signals

Using the SEL-3405 to distribute IRIG-B time signals increases reliability because fiber-optic cables are far less susceptible to EMI/RFI than copper links, and provide improved isolation from ground potential rise and other electrical hazards.

Hardened for Substation Environments

Trust in the same design and type-testing applied to critical protective relays.

Employ in environments with a temperature range of –40° to +85°C (–40° to +85°F).

Employ with confidence in extra-high-voltage (EHV) environments.