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Figure 2-9 RS-232 Host to I/O PLEXER Wiring
Host-To-I/O PLEXER RS-232 communication is limited to a distance of 50 feet (when distances of greater than 50 feet are encountered the Host must be equipped with an RS-422/485 device). The connector for the Host cable, marked Host RS-232 (see figure 2-5), is a 9 pin female D submin. Pin assignments for this connector may also be found on the edge of the cover.
The Host connection may be a 9 or 25 pin D submin connector, depending on whether the AT or XT convention is used. A duTec cable can be used for this purpose (IOPN-AT, IOPN-XT, or IOPN-AXT).
In addition to the Host-to-I/O PLEXER wiring, the installer should confirm that the Network Type switches are set in the RS-232/RPT poositions, and that both CTS/RTS jumpers are in the horizontal position as shown. The switches marked "PULL-UP" in figure 2-5 should be left in the "ON" position.
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