Kontron VMOD-2D - Manual (Page 12)

VMOD-2/VMOD-2D
12/15/97
Product Overview
Page 1 - 2 Man. ID 03139, Rev. Index 0200
1. Introduction
1.1 Product Overview
VMOD-2 is a "User Configurable" Industrial I/O module with the ability to fit any two (identical
or different) standard sized VMOD piggybacks. Each fitted piggyback shares half of the front
panel's 50-way connector allowing a flat-ribbon cable to be easily routed to either one or two
end devices. The VMOD-2 may not only be used with all existing (VMOD) piggybacks, but will
also accept the future generation of enhanced piggybacks, which may use the additional sig-
nal lines only provided on the VMOD-2.
Upgrade paths/Compatibility. The original VMOD is no longer available and if ordered will
automatically be replaced with the new VMOD-2. The VMOD-2 can be used as a direct
replacement for any application using an older style VMOD. Full electro-mechanical compati-
bility (and acceptance of the existing piggyback interfaces) is guaranteed.
The VMOD-2 may be used as a direct replacement for any existing VMOD and will accept the
fitted piggybacks from that existing VMOD without any modification. (See also special note
below)
A VMOD may be used in place of the new VMOD-2 with the loss of some new features, and
then only with piggybacks developed up to the end of 1990. Any enhanced piggybacks which
need additional signals from the VMOD-2 will not work on the old VMOD. To identify which
piggybacks are only suitable for use on the VMOD-2 look for a four digit order number such as
the PB-BIT has. i.e. 5230-11. Any and all piggybacks with three digit numbers 523-xx, will
function with both VMOD and VMOD-2 modules alike.
1.2 Ordering Information
Special Note! Caution!
VMOD-2 boards with an index 00 offer increased inter-board shielding by
using tight-routed ground and Vcc planes in their multi-layer layout. This
will compromise the 2.5 kV breakdown isolation offered by many VMOD-
piggybacks. If the 2.5 kV fault isolation is important for the application,
Table 1-1: VMOD-2 Ordering Information
Product Description Order No.
VMOD-2 VMEbus industrial I/O interface module with
latching 50 pin front panel connector, but
without the additional on-board 50 pin
header. 5230-0
VMOD-2 VMEbus industrial I/O interface module with
the 50 pin flat ribbon on-board header only.
(the 50-pin front panel connector is omitted) 5230-1