Black Box IC476A-F-R2 - Manual (Page 11)

10
ASYNC 232
↔422/485 CONVERTER
3.2 DIP-Switch Configuration
The eight positions on switch set S1 (shown in the first illustration below)
configure the Converter for RTS/CTS delay (used in 2-wire, half-duplex
mode only), echo mode (used in 2-wire, half-duplex mode only), method of
carrier control, “transmit off” impedance, receive impedance, and 2-wire/
4-wire operation. These switches are located
internally
on the underside of
the Converter’s PC board. To access switch set S1, use a small flat-blade
screwdriver to pop open the Converter’s case as shown below.
ON
OFF
ON
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