Motorola MVME2603-1121A, Installation And Use Manual

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Functional Description
3-25
3
❏
Two synchronous serial ports (
SERIAL 3
and
SERIAL 4
on the
front panel), configurable for EIA-232-D, EIA-530, V.35, or
X.21 protocols
❏
Two 60-pin Serial Interface Module (SIM) connectors
Serial Interface Modules
The synchronous serial ports on the MVME761 are configurable via
serial interface modules (SIMs), used in conjunction with the
appropriate jumper settings on the transition module and base
board. The SIMs are small plug-in printed circuit boards which
contain all the circuitry needed to convert a TTL-level port to the
standard voltage levels needed by various industry-standard serial
interfaces, such as EIA-232, EIA-530, etc. SIMs are available for the
following configurations:
For additional information about the serial interface modules, refer
to the MVME761
UserÕs Manual (listed in the Related Documentation
appendix) as necessary.
Table 3-4. SIM Type Identification
Model Number Module Type
SIM232DCE EIA-232 DCE
SIM232DTE EIA-232 DTE
SIM530DCE EIA-530 DCE
SIM530DTE EIA-530 DTE
SIMV35DCE V.35 DCE
SIMV35DTE V.35 DTE
SIMX21DCE X.21 DCE
SIMX21DTE X.21 DTE