Black Box ME805-C-R2, Short-Haul Modem B, ME810, ME800A-R2 manual Installation, Four-Wire Connections

SHM-B ASYNC

3. Installation

Installation involves three basic steps: four-wire connections; EIA-232 connection; switch settings.

3.1 Four-Wire Connections

Figure 1 shows the location of the terminal block on the circuit board. Refer to Figure 2 to make the proper connections between two SHM-B units.

NOTE: Transmit + (TX+) on one modem is wired to Receive + (RX+) on the other modem; Transmit - (TX-) is wired to Receive - (RX-). A ground connection is optional.

1.If the unit is assembled, separate the top and bottom panels at the front of the unit.

2.Push the rear connector to force out the front panel and printed circuit board.

3.Route the four-wire cable through the open hole in the rear panel of the enclosure.

4.Strip each of the four wires about 1⁄8".

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