RFL Communications 21 Sub-MUX Manual de usuario descargar pdf (Pagina 31)

Solutions for an evolving world.

The Relay Connections

• Typically the relay will either have it own Comms channel

or be connected to a Communication device.

• A Teleprotection (TPR) chassis, may be used as the

Communication channel.

• In these cases the relay will be connected via outputs

to inputs, or via 61850

• In most case , it will use a single DS0 (64Kbps) channel and

is carried over a Multiplexer or a Micro wave channel bank.

• Exception maybe the Audio 2/4-wire connection.

Protective Relay

POT (Audio Tone) 2/4-wire

Electrical Direct RS232/449/v.35

Fiber Direct 1300/1550 NM SM/ MM

SHFI 850 NM

TX/RX

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RFL Communications 21 Sub-MUX Manual de usuario Pagina 31