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

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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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Contents Short-Haul Modem B SHM-B Async SHM-B Async SHM-B Async SHM-B Async Trademarks Used in this Manual Specifications Distance miles/kmOperating Temperature 32 to 112F 0 to 50C SHM-B Async Introduction Installation Four-Wire ConnectionsSHM-B board 5-screw terminal block Wiring diagram for two SHM-B units EIA-232 ConnectionSwitch Settings EIA-232 Pin Connections on SHM-BPinning with DTE/DCE switch in the DCE position Flow Control ON/X-OFF Mode Activating the Loopback switch OperationSHM-B Async Rackmount Installation SHM-B Async Troubleshooting Guide SHM-B Async SHM-B Async SHM-B Async SHM-B Async SHM-B Async Copyright 2000. Black Box Corporation. All rights reserved
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