Delivering high density and speeds up to 10 Gbps, the
custom-configurable GbX
®
Backplane Connector System is
prime for telecom and datacom designs requiring future
speed upgrades
The GbX
®
connector system provides the speed, density and low applied cost
required by leading-edge backplane applications. It is especially suited for
designs that require future speed upgrades by daughtercard replacement into
an existing backplane. With native differential signaling speeds up to 10 Gbps,
the GbX Backplane Connector System is well suited for existing and future
generations of 10 Gigabit Attachment Unit Interface (XAUI) and InfiniBand
†
based systems, in addition to those based on Advanced Telecom Computing
Architecture (ATCA
‡
) and Optical Internetworking Forum (OIF) chip protocols.
Networking and telecommunication equipment engineers will benefit by
the GbX connector’s ability to provide not only a high-density, low applied
costsolution in the near term, but also by its electrical performance in
upgradeable systems. Speeds up to 10 Gbps have been demonstrated with
appropriate Serializer / Deserializer (SERDES) devices and board-material
selection. This allows system architects freedom-of-design for faster future
systems without the worry of backward compatibility, along with the economy
of a common backplane for two generations of equipment.
The GbX Lite Series system provides a complementary high-density, open-pin
field for costeffective design of slower-speed circuits along the same stiffener
as the standard, high-speed GbX wafers.
GbX
®
Backplane
Connector System
76921
76933
75834
75840
2-Pair GbX-U Header
5-Pair GbX-U Header
2-Pair GbX-E Header
4-Pair GbX-E Header
Features and Benefits
GbX-E and GbX-U enhanced-
shielding header design
GbX-U utilizes a small 1.50mm
compliant pin and an optimized PCB
footprint
Data rate options up to 10 Gbps
Bifurcated contact beams in
daughtercard receptacle
Modular daughtercard components
with GbX Lite Series system
available
Optimized differential-pair contacts
Up to 69 real differential pairs per
linear inch (27 real differential pairs
per 10.00mm)
Provides low cross-talk, allowing
cleaner signaling at higher speeds
over traditional GbX connectors
Reduces via affect on signal
integrity
Able to support future daughtercard
speed upgrades
Greater reliability with two points of
contact
Custom, cost-effective receptacle
assemblies
Easier board trace routing
High density with more differential
pairs per linear inch
2 AND 3 PAIRS
75874, 75876
Differential Daughtercard
Assemblies
75875, 75877
Lite/Hybrid Daughtercard
Assemblies
75832, 75836
Backplane Signal Headers
75863, 75858
Lite Backplane Signal Headers
75492, 75331
Backplane Power
4 and 5 Columns Pairs
75878, 75880
Daughtercard Assemblies
75879
4-Pair Lite/Hybrid
Daughtercard
Assemblies
75838, 75954
Backplane Signal Headers
75854
4-Pair Lite Backplane
Signal Header
75341, 75515, 75512, 75513
Backplane Power
Stand Alone Guide Pin Kit
75234
Pin Kit
GbX
®
Backplane Connector System
† InfiniBand is a registered trademark of the InfiniBand Trade Association
‡ ATCA is a trademark of the PCI Industrial Manufacturers
GbX is a registered trademark of Amphenol TCS
Applications
Data Networking Equipment
– Servers
– Storage systems
Telecommunication Equipment
– Hubs, switches, routers
– Central office, cellular
infrastructure and multi-platform
service (DSL, cable data)
Military/Aerospace Equipment
Industrial Equipment
Medical Equipment
Data Center
GbX
®
Backplane
Connector System
Ordering Information
Daughtercard Assemblies
2-Pair
Signal wafer blocks,
power modules
and guide modules
sequentially assigned by
application
75874-XXXX*
(High-speed differential
pair signal contacts only;
wafer 75651-0031
for reference
information only)
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0756510031_BACKPLANE_CONNECTO.xml
3-Pair
75876-XXXX*
(High-speed signal
contacts only; wafer
75371-0031 for reference
information only)
75877-XXXX*
(High-speed differential
pair signal contacts
75371-0031 and low-
speed signal contacts
75661-0035 combined
in one assembly)
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0753710031_BACKPLANE_CONNECTO.xml
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0756610035_BACKPLANE_
CONNECTO.xml
4-Pair
75878-XXXX*
(Wafer 75221-0031
for reference
information only)
5-Pair
75880-XXXX*
(Wafer 75361-0031
for reference
information only)
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0753610031_BACKPLANE_
CONNECTO.xml
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0752210031_BACKPLANE_CONNECTO.xml
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0753710031_BACKPLANE_CONNECTO.xml
Lite wafer blocks, signal
wafers, power modules
and guide modules
sequentially
assigned by application
75875-XXXX*
(High-speed differential
pair signal contacts
75651-0031 and lowspeed
signal contacts
75671-0035 combined
in one assembly)
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0756510031_BACKPLANE_
CONNECTO.xml
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0756510031_BACKPLANE_
CONNECTO.xml
75879-XXXX*
(High-speed differential
pair signal contacts
75221-0031 and lowspeed
signal contacts
75421-0035 combined in
one assembly)
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0752210031_BACKPLANE_
CONNECTO.xml
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0754210035_BACKPLANE_
CONNECTO.xml
N/A
* Daughtercards are custom configured. Please visit the Molex Backplane Configurator web site to create a custom daughtercard at:
www.molex.com/configurator.html
Backplane Signal Headers
Backplane
Signal Header
GbX-E 5 Column Open
GbX-E 5 Column Right
GbX-E 10 Column Open
GbX-E 10 Column Left
GbX-E 10 Column Right
GbX-E 25 Column Open
GbX-U 10 Column Dual
GbX-U 45 Column Dual
2-Pair
(4 Circuits per Column)
Order No.
www.molex.com/molex/products/listview.
jsp?query=75834&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383334%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
3-Pair
(6 Circuits per Column)
Order No.
Circuits
4-Pair
(8 Circuits per Column)
Order No.
N/A
http://www.molex.com/molex/products/listview.
jsp?query=75840&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383430%7E%7EncBACKPLANECONNECTO%23
%230%23%232&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
5-Pair
(10 Circuits per Column)
Order No.
Circuits
Circuits
20
Circuits
N/A
75834-0505
75834-4504
75834-0104
75834-2104
75834-4104
75834-0204
N/A
www.molex.com/molex/products/listview.
jsp?query=75834&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383334%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
www.molex.com/molex/products/listview.
jsp?query=75834&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383334%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
www.molex.com/molex/products/listview.
jsp?query=75834&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383334%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
www.molex.com/molex/products/listview.
jsp?query=75834&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383334%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
www.molex.com/molex/products/listview.
jsp?query=75834&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383334%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
75840-0104
75840-2104
75840-4104
40
N/A
N/A
http://www.molex.com/molex/products/listview.
jsp?query=75840&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383430%7E%7EncBACKPLANECONNECTO%23
%230%23%232&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75840&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383430%7E%7EncBACKPLANECONNECTO%23
%230%23%232&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
80
N/A
N/A
100
N/A
180
N/A
N/A
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0769336104_BACKPLANE_CONNECTO.xml
76933-6104
N/A
100
N/A
http://www.molex.com/molex/products/datasheet.
jsp?part=active/0769216404_BACKPLANE_CONNECTO.xml
76921-6404
GbX is a registered trademark of Amphenol TCS
Ordering Information
Backplane Signal Headers
Backplane
Signal Header
5 Column Lite Open
10 Column Lite Open
25 Column Lite Open
10 Column Lite Guide Left
25 Column Lite Guide Left
2-Pair
(4 Circuits per Column)
Order No.
http://www.molex.com/molex/products/listview.
jsp?query=75863&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383633%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
GbX
®
Backplane
Connector System
3-Pair
(6 Circuits per Column)
Order No.
http://www.molex.com/molex/products/listview.
jsp?query=75858&path=cHome%23%23-1%23%23-1%7E%7Eq37
35383538%7E%7EncBACKPLANECONNECTO%23%230%23%2
33&offset=0&autoNav=2&sType=a&filter=&fs=&channel=Products
4-Pair
(8 Circuits per Column)
Order No.
http://www.molex.com/molex/products/listview.
jsp?query=75854&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383534%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
5-Pair
(10 Circuits per Column)
Order No.
Circuits
Circuits
25
50
125
50
125
50
125
N/A
40
100
40
100
40
100
Circuits
40
80
Circuits
55
110
275
110
275
110
275
N/A
80
200
80
200
80
200
75863-0504
75863-0104
75863-0204
75863-2104
75863-2204
75858-0504
75858-0104
75854-0505
75854-0104
75854-0204
75854-2104
75854-2204
75854-4104
75854-4204
N/A
http://www.molex.com/molex/products/listview.
jsp?query=75863&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383633%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75863&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383633%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75863&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383633%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75863&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383633%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75863&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383633%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75863&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383633%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75858&path=cHome%23%23-1%23%23-1%7E%7Eq37
35383538%7E%7EncBACKPLANECONNECTO%23%230%23%2
33&offset=0&autoNav=2&sType=a&filter=&fs=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75854&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383534%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75854&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383534%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75854&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383534%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75854&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383534%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75854&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383534%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75854&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383534%7E%7EncBACKPLANECONNECTO%23
%230%23%234&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
N/A
N/A
N/A
N/A
10 Column Lite Guide Right 75863-4104
25 Column Lite Guide Right 75863-4204
5 Column Open
10 Column Open
25 Column Open
10 Column Guide Left
25 Column Guide Left
10 Column Guide Right
25 Column Guide Right
N/A
http://www.molex.com/molex/products/listview.
jsp?query=75836&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383336%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
75836-0504
75836-0104
75836-0204
75836-2104
75836-2204
75836-4104
75836-4204
30
60
150
60
150
60
150
http://www.molex.com/molex/products/listview.
jsp?query=75832&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383332%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
75832-0104
75832-0204
75832-2104
75832-2204
75832-4104
75832-4204
http://www.molex.com/molex/products/listview.
jsp?query=75836&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383336%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75836&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383336%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75836&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383336%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75836&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383336%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75836&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383336%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75836&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383336%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75838&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383338%7E%7EncBACKPLANECONNECTO%23
%230%23%23n&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
75838-0104
75838-0204
75838-2104
75838-2204
75838-4104
75838-4204
http://www.molex.com/molex/products/listview.
jsp?query=75954&path=cHome%23%23-1%23%23-1%7E%
7Eq3735393534%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
75954-0104
75954-0204
75954-2104
75954-2204
75954-4104
75954-4204
100
250
100
250
100
250
http://www.molex.com/molex/products/listview.
jsp?query=75832&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383332%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75832&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383332%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75832&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383332%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75832&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383332%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75832&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383332%7E%7EncBACKPLANECONNECTO%23
%230%23%23e&offset=0&autoNav=2&sType=a&filter=&fs
=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75838&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383338%7E%7EncBACKPLANECONNECTO%23
%230%23%23n&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75838&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383338%7E%7EncBACKPLANECONNECTO%23
%230%23%23n&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75838&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383338%7E%7EncBACKPLANECONNECTO%23
%230%23%23n&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75838&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383338%7E%7EncBACKPLANECONNECTO%23
%230%23%23n&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75838&path=cHome%23%23-1%23%23-1%7E%
7Eq3735383338%7E%7EncBACKPLANECONNECTO%23
%230%23%23n&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75954&path=cHome%23%23-1%23%23-1%7E%
7Eq3735393534%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75954&path=cHome%23%23-1%23%23-1%7E%
7Eq3735393534%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
http://www.molex.com/molex/products/listview.
jsp?query=75954&path=cHome%23%23-1%23%23-1%7E%
7Eq3735393534%7E%7EncBACKPLANECONNECTO%23
%230%23%239&offset=0&autoNav=2&sType=a&filter=&f
s=&channel=Products
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Backplane Power and Guide Components
Backplane Power
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Power
Stand-Alone
Guide Pin Kit
2-Pair
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Circuits
4
Circuits
6
Circuits
8
Circuits
10
75492-1033
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