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3-22
Computer Group Literature Center Web Site
Functional Description
3
❏
Fused SCSI terminator power developed from the +5V DC present
at connector P2
❏
A 64-pin DIN connector to interface the EIA-232-D, parallel, SCSI,
and Ethernet signals to the MVME712M
MVME761 Transition Module
The MVME761 transition module (
Figure 1-12 on page 1-26
) and P2
adapter board are used in conjunction with the MVME2603/2604 base
board.
The features of the MVME761 include:
❏
A parallel printer port (IEEE 1284-I compliant)
❏
An Ethernet interface supporting 10BaseT/100BaseTX connections
❏
Two EIA-232-D asynchronous serial ports (identified
as
COM1
and
COM2
on the front panel)
❏
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