Data General AViiON Series, Клиентская документация

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Connecting External Devices to VME Option Boards
4-22
014–001867
Align the connector pins and D-shaped bevels before gently pushing the cable
connector onto the synchronous board connector. Align the two captive connector
screws as shown in Figure 4–26, and then tighten them securely.
Console cable
(side view)
Cable connector (male) VSC/3 connector
(female)
Connector pins
1–25
Captive screws
Figure 4–26 Plugging a DB25 Connector Into a VSC/3 Connector
If you haven’t already connected the remote end of the cable to your synchronous
device, do so now. Refer to the device-specific documentation for your option, if
necessary. Then continue with the next section that applies to your system.
When you finish connecting all external devices to your VME option board(s), refer
to your starting manual for instructions on powering up your system. You should
then refer to your operating system and communications software documentation for
instructions on what to do after booting or rebooting your system hardware.
Connecting Synchronous Devices to a VSC/3i
Controller
A single VSC/3i controller in your system can support three channels (or lines)
through ports that protrude through the air dam at the rear of the VSC/3i board.
Each independent full-duplex line can support an RS–232–C, RS–449, RS–530, V.35,
or X.21 synchronous device. Figure 4–27 shows the location of the device connectors
on a VSC/3i board.
The tag hanging from the lower handle of the VSC/3i board indicates which
electrical interface each port currently supports. When you receive your board from
Data General, it will be configured for the default, RS–232–C, on all three lines. If
you reconfigure any of the lines, write the correct interface type on the tag for the
appropriate port; then other users can tell how you have configured each port
without removing the board from the computer unit. Figure 4–27 shows the tag and
a VSC/3i board with ports configured for RS–232–C, V.35, and RS–530 support.
Refer to the manual Setting Up and Installing Model 7428 VME Synchronous
Controllers (VSC/3i) in AViiON

Systems for complete configuration information.