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Black Box ME800A-R2, Short-Haul Modem B, ME810, ME805-C-R2 manual SHM-B Async

Models: ME800A-R2 ME810 Short-Haul Modem B ME800A ME805-C-R2 ME805-C

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SHM-B ASYNC

SYMPTOM: TD or RD indicator is steadily on red with no data attempting to pass (no DTEs attached).

Check for reversal of polarity on the four-wire connection.

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Black Box ME800A-R2, Short-Haul Modem B, ME810, ME805-C-R2 manual SHM-B Async
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