Kontron VMOD-2D - Manual (Page 39)

VMOD-2/VMOD-2D
12/15/97
Functional Description
Page 2 - 13 Man. ID 03139, Rev. Index 0200
Caution!
When using the VMOD/VMOD-2 with any piggyback, take care to note
that the terms ST1 and ST 2 used in the piggybacks user's manual and
circuit diagrams, refer to the connectors of the Piggyback and equate to
their Plug 1 and Plug 2 (ST from the German word "Stecker") these fit to
BU1a and BU2a or BU1b and BU2b (BU = "Buchse" = Socket) on the
VMOD/VMOD-2.
This is very important as the VMOD/VMOD-2 also have Plugs called ST1
(VMEbus connector) and ST2 (50-way header) which have no direct rela-
tionship to those of the piggybacks circuit diagrams as attached to the
piggyback user's manual.
Look for the front connector overview in each VMOD-piggybacks user's
manual, before making any interface leads/connections, and use with due
caution, especially where high external voltages or unprotected external
supplies are to be connected.
Figure 2-5: Overview of VMOD-2's Connector Locations
2.5.1 VMOD-2's (VMOD/VME End) Piggyback Connector BU1/0
The front two-rows of the three-row 30/45-pin sockets (BU1 and/or BU0) are used
by all VMOD/VMOD-2 piggybacks. Some piggyback's, having three-row headers,
also use the third row, BU0a or BU0b. The use of the third row does not however
define a piggyback as being only suitable for use on the VMOD-2, as the original
VMOD also had these third rows, and several existing VMOD-piggybacks use sig-
nals on the third row which are found on both the VMOD and the VMOD-2. Previ-
ously unused pins in the third row (BU0) are now fully utilized by the VMOD-2 and
BU2a 26-way, 2-row
piggyback s ocket for
upper piggyback
BU1 a/BU0a 30/45 -way
2/3-row upper
pig gyback s ocket
ST3 front panel
connector (50 -way)
— or —
ST2 on-board
50-way header
ST1 VMOD-2's
VMEbus 96 -way
connector (P1, J1)
BU2b 26-way, 2-row
piggyback s ocket for
lower piggyback
BU1 b/BU0b 30/45 -way
2/3-row lower
pig gyback s ocket