Data General AViiON Series, Customer Documentation

Page: 110 / 210

Connecting External Devices to VME Option Boards
4-10
014–001867
To connect a daisy chain of cluster controllers to your controller card, use one of the
cables listed in Table 4–2. These cables include a BNC host connector.
Table 4–2 Cables for Cluster Controllers
Cable Part Number Model Number Cable Length (ft)
005–34246 15338E025 25
005–34247 15338E050 50
005–34248 15338E100 100
Connecting a Cluster Controller Cable to a VDA Adapter
To attach a controller cluster to a VDA/128 or a VDA/255 adapter, you need a BNC
host connector, which connects to the BNC connector on your VDA/128 or VDA/255
board. Figure 4–10 shows the host connector and the location of the VDA port.
VDA/128 or VDA/255 connector
BNC host connector
RG–62 cable
to first cluster box on
chain
AViiON computer – rear view
Pins
Slots
Ring
VDA/128 or VDA/255 connector BNC host connector
Figure 4–10 VDA/128 or VDA/255 Connectors
NOTE: You must connect the cluster line cable to your computer with a host
connector rather than a T-fitting.
To connect a host connector to the receptacle on the adapter board, simply push the
host connector firmly onto the receptacle, making sure that the pins on the receiving
fitting slide completely into the slots on the host connector. (See Figure 4–11.) Then
turn the knurled ring on the connector clockwise until the pins on the receiving
connector snap into place.