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RS-232↔485/422 CONVERTERS
Table 2. DTE Jumper Settings.
NOTE
For additional information on the jumper requirements, see Section 3.1.
Function Jumper Requirements
1. Configure RS-232 port as DTE XW1 in B position
2. Signal ground connected to
frame ground
• Connected W7 is IN (100-ohm, 1/2-watt
resistor soldered in place)
• Not connected W7 is OUT
3. Half- or full-duplex operation
• Full duplex W8 in FULL position (4 wire, A-B)
• Half-duplex W8 in HALF position (2 wire, B-C)
4. CTS delay CTS not supported
5. Enable RS-485 driver
a. RS-485 driver enabled by W15 in A-B position and
RS-232 lead CD W9 in 0-ms position
W9 in 10-ms position
W9 in 30-ms position