BURNDY
Metral 1000, 2000, 4000
High Speed Backpanel Connectors

Today's communication technology requires the transmission of higher data rates, driving the need for enhanced hardware to cope with the signal integrity requirements of these systems. The system designer must balance three interacting components to optimize system performance:

• Integrated circuit chips
• Multi-layer boards
• Interconnect systems

FCI recognizes that the interconnection of complex subsystems is a crucial element in the design of communications equipment. To meet these evolving needs, FCI developed 5-row and 8-row Metral® high-speed backplane products to compliment its proven standard Metral offering. The basic level of performance improvement is provided by the Metral 1000 Series, while the Metral 2000Series and Metral 4000 Series provide capability to scale connector performance to support data rates up to 5 Gb/s. Because the three Metral high-speed series are plug-compatible, designers are able to select the appropriate combination of header andreceptacle to optimize the price and performance level for their specific system design.

The Metral 1000 Series and Metral 2000 Series are designed for press-fit termination into standard 0.65mm-0.85mm diameter through holes. The backplane headers areavailable with stub-mount tails or extended tails for mid-plane applications requiring rear plug-up capability.

The Metral 1000 Series utilizes stripline shields between the columns of signal contacts in the right-angle receptacle and outerground shields in the vertical header. The connectors can be routed in either single-ended or differential-pair configurations and all contacts are available for use as signals.

The Metral 2000 Series employs a shielded stripline structure in both the receptacle and header. In addition to having ground shields between columns, the 5-row connectors use the third row and the 8-row connectors use the third and sixth rows for ground connections.

The Metral 4000 Series also utilizes a shielded stripline structure in both the right-angle receptacle and vertical header. In addition to having ground shields between columns, the 5-row connectors use the third row for ground connections. The Metral 4000 Series also features a modified contact geometry optimized for 100-ohm differential pairs to provide a better impedance match and lower insertion loss. This series also uses a compliant section designed for a 0.45mm-0.55mm finished hole diameter, which lowers capacitance and frees additional board space for trace routing.

All Metral high-speed products are designed in conformance with IEC-61076-4-104 and are designed to be end-to-end stackable with FCI standard Metral products. In addition, the connector system has been tested and qualified to Telcordia® GR-1217-CORE for Central Office and Uncontrolled Environment.