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cPCI 3U RB Series

Hartmann’s cPCI 3U RB Series Backplanes utilize a board design based on the HIGH-SPEED DESIGN concept. Low reflection is achieved by means of uniform signal surge impedance. The RB series design features an energy buffering feature which works across the entire frequency range, guaranteeing improved reliability thanks to more stable supply voltages directly at each slot in conjunction with fluctuating loads. Continuous electrically conductive chassis GND surface located in the area where the backplane is mounted on the card rack. An M3 screw connection is available to connect chassis ground. By installing a connecting bracket or busbar, chassis GND can be connected to ground in a low-resistance star arrangement. Separate 6-pin JTAG boundary scan connector is standard. Faster, simpler system initialization and testing via the JTAG bus when mounted in the chassis is achieved by direct access via an additional connector on the backplane. Main operating voltages are supplied via ATX connector, using the space behind an 8 HP wide CPU. No space goes unused.

Additional Information

Form Factor


System Slot



1 – 8, (1 – 20 Professional)

Slot Pitch

4HP (20.32 mm)

Power Feed

ATX Connector (placed behind 8HP CPU Slot) Terminal rails/screws

Supply Voltage V I/O

3.3V, 5.0V

Clock Frequency

33 MHz, 66 MHz

Transfer Mode

32 bit, 64 bit

Rear I/O

With, Without

PCI to PCI Bridge


Utility Connector

JTAG, (IPMB / Professional)

Geographic Addressing

With and without

Permissible Current Load

5V up to 8A/slot, 3.3V up to 10A/slot

PCB Design

Optimized for best HF behavior

Base Specification

PICMG 2.0, R3.0

Hot Swap Specification

PICMG 2.1, R1.0

Base Material

Type FR-4 UL 94 V-0

Ohmic Resistance

< 1.5 Ohm

Impedance Z of Bare PCB

65 Ohm

Chassis GND

Continuous chassis GND surface where backplane is mounted to rack, comes with M3 screw for chassis GND

Card Thickness

2.8 (.11")


2 mm press-fit, quality grade 2

Terminal, 8 slots

On-board Schottky barrier diodes

Operating Temperature

> 8 slots: 0°C … +70°C, ≤ 8 slots: -40°C … +85°C

Relative Humidity

90%, non-condensing

Part No.SlotsV I/ORear I/OBus WidthClockSystem SlotDatasheet
33RB02651425.0VWithout64 bit33 MHzRight


33RB_ _45241-85.0VWith32 bit33 MHzRight
33RB_ _43241-83.3VWith32 bit33 MHzRight
33RB_ _46241-53.3VWith32 bit66 MHzRight


33RB_ _45141-205.0VWith32 bit33 MHzRight
33RB_ _43141-203.3VWith32 bit33 MHzRight
33RB_ _46141-53.3VWith32 bit66 MHzRight
33RB02631423.3VWithout64 bit33 MHzRight


33RB_ _35241-85.0VWithout32 bit33 MHzRight
33RB_ _33241-83.3VWithout32 bit33 MHzRight
33RB_ _36241-53.3VWithout32 bit66 MHzRight


_ _ = Number of slots

Contact Us

Discover how Hartmann can increase power, speed and rugged durability to your project performance.

Hartmann Electronic

Germany Headquarters
Motorstr. 43
D-70499 Stuttgart, Germany
P:+49 711 13 98 90
North American Office
202 N. Limestone St. Suite 320
Springfield, Ohio 45503
P:+1 937-324-4422
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