These are the connectors that are used on modules to be plugged
into the CDF Front End VIPA Subracks and on the VIPA Subracks
used for the SVX II electronics.
Part number & ordering information
postscript file. Note that production quantities will be provided
by Fermilab.
Please review the Module Connector Count postscript file and the Backplane Connector Count postscript file to determine if the information shown for your subsystem is correct. This information can also be viewed in the larger VIPA Connector Needs excel spreadsheet file. Please send the missing or updated information to Bob DeMaat at demaat@fnal.gov.
For further information on the spreadsheet entries
Note that the following information pertains to the 9Ux400mm cards and the 9Ux120mm Transition Modules. (There are some significant differences in the implementation of the backplane connectors.)
There are four styles of connectors:
J1 and J2: 160-pin, 100-mil-pitch, DIN-style connector which is backward compatible with the 96-pin original VMEbus connector. The printed circuit board hole pattern is 5 x 32.
J0: 95-signal, 2-mm-pitch, hard-metric style connector. In addition to the 5 x 19 array of signal pins there is, optionally, an outer row of pins that connect to metal shields that can be used for ground returns or EMI shielding. We will use a printed circuit board hole pattern that is 6 x 19 for all configurations.
J3 (J5/J6): There are three options for J3 (J5/J6).
160-pin, 100-mil-pitch, DIN-style connector which is backward compatible with the 96-pin original VMEbus connector. This is the same as the J1 and J2 connectors and is technically considered to be "J3". The printed circuit board hole pattern is 5 x 32.
220-signal, 2-mm-pitch, hard-metric style connector. In addition to the 5 x 47 array of signal pins there is, optionally, a row of pins that connect to electrical shields which can be used for ground returns or EMI shielding. This connector is actually comprised of two connectors. One is 110-signal with 22 rows and while the other is 110-signals in a shell that is the length of twenty-five rows wherein three of the center rows have been replaced with a space for keying hardware. The overall printed circuit board hole pattern is 6 x 47 but rows 34, 35 and 36 are not occupied and do not need to be implemented as holes.
235-signal, 2-mm-pitch, hard-metric style connector. This
connector is actually comprised of two connectors. One is 110-signal
with twenty-two rows and the other is 125-signal with twenty-five
rows. In addition to the 5 x 47 array of signal pins there is
a row of pins that connect, optionally, to electrical shields
that can be used for ground returns or EMI shielding. The printed
circuit board hole pattern is 6 x 47.
Transition Card
There are no J1 connectors on transition cards because there are no user-defined signals on the J1 portion of the backplane, i.e., the signals on J1 are fully defined for the VMEbus specification and electrical loading of these lines is limited to the 21 modules located in the front of the subrack.
Transition card J0 connector: 95-signal, 2-mm-pitch, hard-metric style connector. In addition to the 5 x 19 array of signal pins there is, optionally, an outer row of pins that connect to metal shields that can be used for ground returns or EMI shielding. We will use a printed circuit board hole pattern that is 6 x 19 for all configurations. This is the same part that is used on our 9U x 400mm cards.
Transition card J2 connector. This is a 160-signal, 100-mil pitch, DIN-style connector. The part is specific to transition cards and is distinct from the part that resides on our 9U x 400mm cards. The printed circuit board hole pattern is a 5 x 32 array.
Transition card J2 Shell. A J2 connector will be required
on all transition cards in order to improve vertical and horizontal
alignment for connector mating. For those cards that do not require
any electrical connections to the J2 signals, a connector shell
is available that can be mounted on the transition card.
Transition card J3 connector choices:
J3 (J5/J6): There are three options for J3 (J5/J6).
160-pin, 100-mil-pitch, DIN-style connector which is backward compatible with the 96-pin original VMEbus connector. This part is the same as the transition card J2 connector. The printed circuit board hole pattern is 5 x 32.
220-signal, 2-mm-pitch, hard-metric style connector. In addition to the 5 x 47 array of signal pins there is, optionally, a row of pins that connect to electrical shields which can be used for ground returns or EMI shielding. This connector is actually comprised of two connectors. One is 110-signal with 22 rows and while the other is 110-signals in a shell that is the length of twenty-five rows wherein three of the center rows have been replaced with a space for keying hardware. The overall printed circuit board hole pattern is 6 x 47 but rows 34, 35 and 36 are not occupied and do not need to be implemented as holes. This is the same part that is used on the 9U x 400mm cards.
235-signal, 2-mm-pitch, hard-metric style connector. This
connector is actually comprised of two connectors. One is 110-signal
with twenty-two rows and the other is 125-signal with twenty-five
rows. In addition to the 5 x 47 array of signal pins there is
a row of pins that connect, optionally, to electrical shields
that can be used for ground returns or EMI shielding. The printed
circuit board hole pattern is 6 x 47. This is the same part that
is used on the 9U x 400mm cards.
Back to Electronics Infrastructure home page
Last modified June 5, 1998 by demaat@fnal.gov