Black Box IC109C, IC109AE, IC109A-R2, IC108C, IC108AE manual Layout of the Printed Circuit Board

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RS-232↔485/422 CONVERTERS

NOTE

When the jumper W9 (CTS) is in the ON position and jumper W15 is in the A-B position, the RS-485 driver is always turned on to enable transmission of data. Therefore, half-duplex transmission cannot be performed. See Section 3.1.5 for an explanation of the RS-485 driver.

Figure 1. Layout of the Printed Circuit Board.

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Contents IC109AE FCC and IC RFI Statements RS-232↔485/422 Converters NOM Statement Trademarks Used in this Manual Contents Specifications Specifications Introduction Jumper and Switch Configuration InstallationLayout of the Printed Circuit Board RS-232↔485/422 Converter as DCE XW1A 8-Position Shunt Driver Enabled by Data Point-to-Point DCE/DTE Configuration Function Jumper Requirements RS-232↔485/422 Converters Installation RS-232↔485/422 Converters Simplified Functional Block Diagram DTE Operation DTE Jumper Settings Installation Typical Applications Point-To-Point, 4-Wire Full- or Half-Duplex Multipoint, 4-Wire Half- or Full-Duplex Multipoint, 2-Wire Half-Duplex Sample Multipoint Operation Installation DCE DTE Appendix A. PinningPin Name Description XW1B Quick Reference User-Selectable OptionsQuick Reference USER-SELECTABLE Options Copyright 2002. Black Box Corporation. All rights reserved