16 CHAPTER 1: I NTRODUCING THE A DVANCED RPSType 3 (325 W) Power Module — 3C16075This module is suitable for powering a specific range of SuperStackunits. See Appendix C for a list of these units. This module provides+27 V through the connector. A Type 3 DC power cable is suppliedwith each module.CAUTION: The Type 3 DC Power Module is for installation by suitablyqualified service personnel only. Refer to the Type 3 Power ModuleInstallation Guide.If you cannot find your SuperStack unit listed in Appendix C, consultthe User Guide that accompanied the unit for its DC power rating, oryour supplier.Power Module CablesThere are two types of DC cable available for each power module: Standard DC Cable — supplied with each power module.Use the standard DC cable to provide power redundancy byconnecting the outlet of the power module to the RedundantPower System socket on the rear of the SuperStack unit. Optional ‘Y’ DC Cable — obtained from your supplier.Use a DC ‘Y’ cable of the appropriate type to provide fullredundancy by connecting the two short leads to two powermodule outlets and the long lead to the Redundant Power Systemsocket on the rear of the SuperStack unit.CAUTION: Do not attempt to use a ‘Y’ Cable to power two separateSuperStack units. The equipment may not operate.Type 1 DC CablesUse a standard DC cable, supplied with each Type 1 60 W and 100 WPower Module, to connect a Type 1 Power Module to a SuperStackunit.An optional ’Y’ DC cable (3C16079) is available to connect twoType 1 60 W or two Type 1 100 W Power Modules to a SuperStackunit for full redundancy.