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Chassis Data Module 21596-023 User’s Guide Assembly Instructions & General Information Mounting: The Chassis Data Modules (CDMs) are located on the rear side of the Backplane behind the Power Entry Modules (PEMs). Remove the fixing screw and push the CDM in direction of the arrow to release the locking mechanism in the CDM slot. Warning! Before replacing a CDM you have to remove the resp. PEM first. Before removing a PEM, make sure that the Power Feeds of the other PEM are fully functional. See the Shelf‘s User Manual and Service Manual for more specific information. CDM in a 14/16 slot Top Fan Shelf CDM in a 14/16 slot Top Fan Shelf General Information: CDM Block Diagram The Chassis Data Module (CDM) is a carrier board for: • The FRU SEEPROM (24LC256) • 3 temperature sensors (LM75) • A Hall Effect sensor (Air filter presence). Doc-No. 61596-147_R2.0 SCHROFF GMBH Langenalberstr. 96-100 September 1, 2009 www.schroff.biz Tel.: + 49 (0) 7082-794-0 Fax: +49 (0) 7082-794-200
