Instruction Sheet QSFP Connector, Thru 408-10187 Bezel Cage Assemblies, Heat Sinks, and Light Pipes 31 JAN 08 Rev A Light Pipe QSFP Connector Bracket 1761987-9 Cage Assembly 1888674-1 Compliant Pins (12 Places) Cavity Card Entry Slot Alignment Pins Hard Stop EMI/Dust Cover 1888810-2 Cage Assembly 1888617-1 Transceiver Latch (2 Places) EMI Springs Figure 1 1. INTRODUCTION Heat Sink QSFP Connector 1761987-9 and Cage Assemblies 1888617-1 or 1888674-1 are used to interconnect QSFP fiber optic or copper transceiver modules to host printed circuit (pc) boards. The EMI/dust cover 1888810-2 is used to prevent contaminants from entering the chassis and confine any EMI emissions when the transceiver is not installed. See Figure 1. In applications where heat dissipation is necessary, a heat sink can be used. Choose a heat sink that meets the needs of the specific application. A sample of available heat sinks for the cage assembly is shown in Figure 2. These heat sinks are designed to be attached to the cage assembly using a clip. (Double Light Pipe) Clip 2007304-2 Heat Sink (Single Light Pipe) HEAT SINK PART NUMBER LIGHT PIPE NOTE All dimensions on this document are in metric units. Figures and illustrations are for i identification only and are not drawn to scale. E 2008 Tyco Electronics Corporation, Harrisburg, PA All International Rights Reserved TYPE PCI SAN NETWORKING Single 1963702-2 1963703-2 1963704-2 Double 1963782-2 1963783-2 1963784-2 Figure 2 TOOLING ASSISTANCE CENTER 1-800-722-1111 This controlled document is subject to change. PRODUCT INFORMATION 1-800-522-6752 For latest revision and Regional Customer Service, TE logo and Tyco Electronics are trademarks. *Trademark. Other products, logos, and company names used are the property of their respective owners. visit our website at www.tycoelectronics.com 1 of 4 LOC B 408-10187 QSFP Connector, Thru Bezel Cage Assemblies, Heat Sinks, and Light Pipes Light pipes can be added to the cage assembly 1888674-1. Two light pipes for thru bezel QSFP cages are shown in Figure 3. Both light pipes can be used either with heat sinks or without, to transmit LED light from the host pc board through the bezel. 3. Place the host pc board on the pc board support fixture. Seated Connector Connector Latching Pin Neck Double Light Pipe 2007309-1 Single Light Pipe 1888634-1 Host PC Board Arms Figure 4 CAUTION A pc board support fixture must be used to provide proper support for the host pc board, and Figure 3 to prevent damage to the host pc board and its ! 2. DESCRIPTION The connector contains right-angle surface mount contacts and features a card entry slot that accepts the 1.0 +0.1 mm thick integrated circuit card housed in the transceiver. The cage assembly is a frame with compliant pins for mounting onto the host pc board. The transceiver locking latches hold the transceiver in place, and the hard stop controls the insertion depth of the transceiver. The cage assembly is designed to fit through openings in the bezel. Springs attached to the perimeter of the cage opening maintain electrical contact with the inside surfaces of the bezel opening to prevent EMI emissions. adjacent components. 4. Align the compliant pins of the cage assembly with the applicable holes in the host pc board. Using even pressure across the cage assembly, apply only that force necessary to seat the shoulders of the compliant pins onto the host pc board. Then remove the pc board support fixture. 5. Inspect the seated cage assembly according to Figure 5. Connector Cage Assembly There is No Damage or Distortion to the Cage Assembly 3. ASSEMBLY PROCEDURE 1. Install the connector onto the host pc board according to Application Specification 114-13217. Refer to Figure 4. Solder the connector to the pc board before seating the cage assembly. 0.05 mm (Max) Shoulder of Compliant Pin CAUTION The soldering process will cause damage to the Seated on Host Host PC cage assembly. PC Board Board ! Figure 5 2. Design a pc board support fixture having a flat surface with holes or a channel wide and deep enough to receive any protruding components during seating of the cage assembly on the host pc board. 2 of 4 6. If applicable, secure the heat sink to the cage assembly as follows (see Figure 6): a. Place the heat sink on the cage assembly so that the raised boss of the heat sink is Tyco Electronics Corporation Rev A 408-10187 QSFP Connector, Thru Bezel Cage Assemblies, Heat Sinks, and Light Pipes centered in the cavity of the cage assembly and the perimeter of the heat sink is flush with the top of the frame of the cage assembly. b. Position the cross bars of the clip above the slots in the top of the heat sink. Then seat the clip onto the heat sink. 10. Install the transceiver or module. If a transceiver or module is not being installed, install the EMI/dust cover into the opening of the cage assembly. c. Using the tip of a tool (such as a small screwdriver), push down upon the raised sections on the rails of the clip until the corresponding locking windows latch onto the attachment latches of the cage assembly. Make sure that all four locking windows have engaged the attachment latches. A raised stop is positioned beneath each latch to prevent excessive strain on the clip. Single Light Pipe Double Light Pipe 1888972-1 1888971-1 Crossbars Figure 7 Rails Locking CAUTION To avoid interference with the insertion and extraction of the transceiver, IT IS IMPORTANT Windows ! that the bezel and pc board be positioned in relation to each other according to Figure 8. Raised Boss 0.15 +0.10 Cavity Attachment Latches and Stops Bottom of Bezel Cutout to Top of PC Board Figure 6 7. If applicable, mount the light pipe so that the pins on each arm fit inside the holes on the rear of the cage. This will require applying slight pressure on the arms to pinch the pins inward. The light pipe should be aligned with the length-wise slots in the heat sink, if a heat sink is installed. The single light pipe, 1888634-1, has a neck that snaps down into the light pipe bracket on cage assembly 1888668-1. The double light pipe, 2007309-1, has a latching pin on the front crossbar that serves the same purpose. The pc board end of the pipe should sit above the indicator LED on the board as shown in Figure 7. 43.8 +X to C L of Guide Pins on the Connector X = (Bezel Thickness) + 0.3 mm 2 Figure 8 4. REMOVAL 4.1. Light Pipe 8. Design the bezel according to 114-13217. 9. Mount the cage assembly (with the host pc board) onto the bezel. Make sure that the opening of the cage assembly is centered within the cutout of the bezel and the light pipe, if one is used, fits through the hole in the bezel. The bezel should compress the EMI springs on all four sides of the cage. See Figure 8. Rev A The cage assembly and host pc board must be detached from the bezel before removing the light pipe from the cage assembly. To remove the light pipe, proceed as follows: 1. Unlatch the front end of the light pipe from the light pipe bracket near the front of the cage assembly by gently pulling upward on the front of the light pipe. Tyco Electronics Corporation 3 of 4 408-10187 QSFP Connector, Thru Bezel Cage Assemblies, Heat Sinks, and Light Pipes 2. When the front of the light pipe has cleared the light pipe bracket, squeeze the arms of the light pipe toward each other until the arms can easily be pulled clear of the mounting holes on the rear of the cage assembly. 2. Lift the cage assembly off of the host pc board. CAUTION DO NOT re-use the cage assembly after removal. ! 4.2. Heat Sink The light pipe (optional) must be removed from the bezel before removing the heat sink from the cage assembly. To remove the heat sink, proceed as follows: 4.4. Connector 1. Insert the tip of a tool (such as a small screwdriver or hobby knife) behind either release aperture of the clip, and rotate the tool until the corresponding locking windows are released from the attachment latches of the cage assembly. Repeat this step for the remaining release aperture. Refer to Figure 9. 1. Remove the cage assembly according to Paragraph 4.2. (The cage assembly must be removed before removing the connector.) 2. Use standard de-soldering methods to remove the connector from the host pc board. CAUTION DO NOT re-use the connector after removal. ! 2. Lift the clip and heat sink from the cage assembly. 5. REPLACEMENT AND REPAIR 4.3. Cage Assembly 1. Partially insert the dust cover or a flat metal bar (or similar object) into the front of the cage assembly. CAUTION CAUTION The connector and cage assembly are not repairable. DO NOT use any defective or ! damaged products. DO NOT allow the object to touch the connector, otherwise, damage to the contacts could occur. 6. REVISION SUMMARY ! S Initial release of document Release Aperture of Clip Figure 9 4 of 4 Tyco Electronics Corporation Rev A