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Model
276A |
The Model 276A transmits an RS-485 signal via a fiber optic link. It accepts half-duplex data rates to 1 Mbps. The RS-485 electrical interface is a balanced, half-duplex, digital interface implemented in a female DB-25 connector.
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Model
8277 |
The Model 8277 is a unique asynchronous fiber optic modem whose optical interface can operate in either point-to-point or ring (daisy chain) configurations and whose electrical interface can also operate in point-to-point or multi-drop configurations depending on the user-selected interface.
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