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FEATURES AND SPECIFICATIONS
X2 10 Gbps System 74735 Transceiver 74744 Rail
Molex's X2 Pluggable Copper Transceiver meets broad market demands for high-speed interconnects in distances up to 15 meters Molex's X2 copper transceiver is designed for high-speed, 10 Gigabit Ethernet applications. The transceiver design is based on a 3.125 Gbps XAUI (10 Gigabit Attachment Unit Interface) to XAUI re-timer, with transmit pre-emphasis and receive equalization. This design ensures the signal can be boosted to compensate for signal loss at high frequencies. Preemphasis is achieved by boosting the high-frequency content of a transmitted signal or attenuating lowfrequency content to compensate for high-frequency loss in the cable assembly. Receiver equalization is a similar process applied to the receiver. The re-timer also incorporates clock and data recovery as well as XAUI lane alignment. The Molex X2 transceiver utilizes an industry standard 10Gbase CX4 cable interface (LaneLink Series 74526) and combines with the X2 guide rail (Molex Series 74744) and 70-circuit X2 connector (Molex Part 74441-0013) for a total system solution. The Molex pluggable 10 Gbps transceiver meets Gigabit Ethernet standards IEEE 802.3ak for CX4 and IEEE 802.3ae for XAUI. The die-cast guide frame provides transceiver retention and a sturdy transmit-to-receive interface. For more information on Molex's extensive X2 product offering, please visit:www.molex.com/product/ x2.html. Features and Benefits n Transmits 10 Gbps data up to 15 meters over Copper(Cu) cable enabling high-speed data transmission n Hot-swappable design enables transceiver to be removed or installed without powering-down n Zinc die-cast backshells provide 360 Electro Magnetic Interference (EMI) Shielding SPECIFICATIONS Reference Information Packaging: Static resistant bag and box Transceiver Mates with: Host Connector (Series 74441), LaneLinkTM CX4 Cable Assembly (Series 74526) Use with: X2 Transceiver (Series 74735) and X2 Rail (Series 74744) used together Designed In: Millimeters Electrical Voltage: 3.3V Current: 3.3V Mechanical Mating Force: Min.: 20N (4.5 lbf) Max.: 40N (9 lbf), 80N (18 lbf) max. allowed by MSA Unmating Force: Min.: 8N (1.79 lbf) Max.: 35N (7.9 lbf) Durability: 100 cycles n Designed to meet Gigabit Ethernet standards IEEE 802.3ak for CX4 and IEEE 802.3ae for XAUI for compliance with X2 MSA n Threaded screw holes for rail provide screw down feature for increased retention to the PCB n Positive latching function on the guide frame provides proper transceiver retention
n Die-cast guide frame provides sturdy, robust transceiver-to-chassis interface n Guide frame alignment posts provide stability for placement on PCB
Physical Housing: Zinc (Zn) Housing Plating: Nickel (Ni) PCB contact: 0.76m (30") Gold (Au) PCB Thickness: 1.00mm (.393") +/- 0.10mm (.004") Operating Temperature: -40 to +85 C
APPLICATIONS
X2 10 Gbps System 74735 Transceiver 74744 Rail
n Telecommunication - Hubs - Servers - Routers n Data Communication n Storage Area Network n Industry Standards - XPAK MSA - IEEE 802.3ak CX4 - IEEE 802.3ae XAUI
ORDERING INFORMATION
Order No. Description
74735-0010 74744-0220
X2 Transceiver X2 Guide Rail
Americas Headquarters Lisle, Illinois 60532 U.S.A. 1-800-78MOLEX amerinfo@molex.com
Order No. USA-353
Far East North Headquarters Yamato, Kanagawa, Japan 81-462-65-2324 feninfo@molex.com
Far East South Headquarters European Headquarters Jurong, Singapore Munich, Germany 65-6-268-6868 49-89-413092-0 fesinfo@molex.com eurinfo@molex.com Visit our website at www.molex.com/product/x2.html
Printed in USA/JI/2006.06
Corporate Headquarters 2222 Wellington Ct. Lisle, IL 60532 U.S.A. 630-969-4550 Fax:630-969-1352
(c)2006, Molex

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