Publication No. 500-001184-000 Rev. B.0
Configuration and Installation 25
2.6 Connector Description
Two 96-pin DIN connectors, P1 and P2 (
Figure 2-2, P1/P2 Connector Pin Layout
on page 26), provide the connections to the VMIVME-1184. P1 contains the
address, data and control lines, plus all the additional signals necessary to control
the VMEbus functions of the board. P2 provides the connections for the upper 16
data lines, additional power and ground pins, and the 32 channel digital
acquisition inputs.
Orientation of the P1 and P2 connectors are shown in
Figure 2-1
on page 23. The
P2 signal assignments are listed in
Table 2-4, P2 Pin Assignments
on page 27. The
mating connector for P2 (Panduit Model 120-964-435E or equivalent) is designed
to be used with a standard 64-wire ribbon-cable with conductor spacing of 0.050
inches. In environments where there is a high degree of electrical noise, a twisted-
pair ribbon cable with an overall shield is recommended.
Two nine-channel connectors on the front panel (P3 and P4) provide the
respective inputs and daisy-chain outputs for a 0 - 5V single-ended or differential
quadrature counter with an optional marker pulse. A single channel (A) can be
used to simply increment the counter. See
Figure 2-2
on page 26 for connector
pinouts.
2.6.1 Barrier Terminal Transition Panels
The VMIVME-1184 can be used with Abaco’s BT0X family of BT transitions
panels. The VMIACC-BT01, 02, 03 and 04 family of BT transition panels meets
ANSI/IEEE SWC TEST.
The BT transition panels provides a passive breakout of the discrete wires of the
ribbon cables, allowing for a more efficient interface between external user
equipment and Abaco’s VMEbus-based interface boards. The BT transition panels
eliminate the need for wire lugs and other bulky methods of wiring transitions.
The VMIACC-BT01 differential dual 64-pin transition panel facilitates 64 isolated
pair circuits with no common ground (2-wire). The VMIACC-BT02 single-ended
dual 64-pin transition panel facilitates 64 non-isolated pair circuits with the C-row
tied to common ground E1 (2-wire). The VMIACC-BT03 differential dual 96-pin
transition panel facilitates 64 isolated pair circuits with a common ground
(3-wire). The VMIACC-BT04 dual 96-pin transition panel breaks out 192
individual circuits to terminal blocks. The BT transition panels are EIA RS-310C
standard 19-inch rack mountable. The BT transition panels are compact and
convenient to use even where space is a constraint. The panels will accommodate
wire size from 22 AWG to 14 AWG stranded wire or to 12 AWG solid wire.
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