Ic487A-F - Black Box IC237A User Manual

2.4 IC487A-F

RS-232 to RS-422/RS-449 (Model No. IC487A-F)
is used to convert between V.24/RS-232 and V.36/
RS-422 interfaces. It's switch-selectable either for
connecting a V.24/RS-232 DTE to a V.36/RS-442
DCE, or for connecting a V.24 DCE to a V.36 DTE.
DTE
Synchronous
terminal or
multiplexor
Fig. 2-5. X and Y interfaces can be V.24 (RS-232) and V.36.
When setting DTE/DCE options, the setting applies to
the type of interface connecting to, not what the
converter appears as.
NON-POWERED INTERFACE CONVERTERS
X Interface
NOTE
DCE
Y Interface
Synchronous
modem or
multiplexor
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