Connectors according to DIN 41612 / IEC 60603-2
Additional information
Switching connectors
Switching connectors – female connector with
integrated switches
Problem
A principle often used for different bus
systems is the looping-through of signal
lines via module boards, the so-called
“daisy chaining”
.
Module
plugged-in
Module
not plugged-in
Module
plugged-in
Daisy chain
Signal line
Jumper
plugged-in
This daisy chaining, however, leads to a
new problem, which becomes obvious
when one of the modules is pulled from
the system: The daisy chain signal con-
nection is broken and must be re-estab-
lished using jumpers. This is not easy as
the modules are located close to each
other in the rack. More often a large
part of the housing must be taken apart
or the whole endeavour of placing the
jumper on the correct pins results in
“nerve-wracking fumbling” Mistakes and
.
therefore mispositionings can happen.
A possible solution
The integration of switches into a stan-
dard connector according to IEC 60603-2,
e. g. into a female connector type C, is a
simple and elegant solution for the prob-
lem described. The contact springs of
this C female connector were extended
by wing-like contact tabs. A gold-plated
metal disk is located between the con-
tact springs. In rest position, with the
male connector not plugged-in, the adja-
cent contact springs are short-circuited
through placing of the contact tabs on
the metal disk. With the male connector
plugged-in, the contact springs are sepa-
rated from each other through the con-
tact pins of the male connector. The con-
tact tabs of the spring are lifted off the
metal disk. This interrupts the connection
between the two springs. Due to the
switching behavior of the C female con-
nector, the daisy chain connection is au-
tomatically closed when the module
board is pulled out. Function-wise the
closed switching contact between two
contact springs corresponds to a jumper
automatically
being plugged in when the male con-
nector is pulled out.
Application in the VME bus
The daisy chaining principle is used for
the IACK and BG 0...3 signal lines in the
VME bus.
By integrating a switching function at
the positions of the respective signal
lines in the connector, the jumpers used
so far are no longer required.
Further applications
The integrated switching function is not
restricted to the positions in the C fe-
male connector stated above. A switch
can be integrated between any positions
in the a, b and c rows of a C female con-
nector IEC 60603-2 and/or between the
a and c rows of a C female connector
IEC 60603-2. A further application for ept
switching connectors are e. g. network
concentrators (hubs). In this application,
too, the daisy chaining is carried out fully
automatically via customer-specific
switching connectors.
Functional principle of the switching connectors
1
3
1
3
View
from the side
2
4
2
4
Switching contacts in rows
View
from the top
1
3
1
3
Switching principle
Switching contacts across rows
2
4
2
4
154
ept GmbH
I
Phone +49 (0) 88 61 / 25 01 0
I
Fax +49 (0) 88 61 / 55 07
I
E-Mail sales@ept.de
I
www.ept.de
Connectors according to DIN 41612 / IEC 60603-2
Switching connector
Female connector
Dimensions in mm
Hole pattern
Press-fit technology –
Performance level II
Termination length
No. of Switching contacts
contacts
at position
a21 – a22,
b4 – b5, b6 – b7,
b8 – b9, b10 – b11
for VME
a–c
1, 2, 3, 4, …, 32
Part number
104-60464-xx
104-65465-xx
104-65466-xx
96
96
104-60565-xx
104-65565-xx
104-65566-xx
Accessories
– Press-fit tool (see page 208)
– Support tool (see page 209)
– Coding accessories (see page 160)
Note
– * Rear mating zone
performance level II
On request
– Performance level I + III or customer-specific
– Special termination length
Options
– Without
fl
ange
– Special contact arrangement (see page 162)
– Customer-specific switching bridge positions
(see page 163)
Ordering note
– PCB 1.5 to 2.0 mm = xxx-xxxxx-01 with termination length = 3.2 mm
– PCB 2.0 to 2.8 mm = xxx-xxxxx-02 with on request
– PCB > 2.8 mm
= xxx-xxxxx-03 with termination length = 4.6 mm
ept GmbH
I
Phone +49 (0) 88 61 / 25 01 0
I
Fax +49 (0) 88 61 / 55 07
I
E-Mail sales@ept.de
I
www.ept.de
155
stm32/stm8
