Emerson ATCA-S201 Overview, Features of the Advanced Rear Transition Module, 11.3 I/O Interfaces

11 RTM-ATCA-SXXX

Overview

The RTM-ATCA-SXXX is an Advanced Rear transition module (RTM) that features a SAS expander which provides a storage I/O path between the front ATCA board and rear I/O access panel. The front ATCA board connection conforms to the 3-row Advanced RTM standard. Optionally, the module may be populated with up to two (2) SAS, SATA or SSD 2.5” disk drives. .

Users may pair the RTM-ATCA-SXXX with ATCA disk carriers (ATCA-S120) to create in-chassis JBOD. The RTM-ATCA-SXXX may also be used to add more disk capacity to other ATCA carrier products

ATCA cards with proper zone-3 connector pin-outs can extend connectivity to connectors on the RTM panel. All rear panel connectors are compatible with commodity off-the-shelf, non- proprietary cables. Standard connectors include a x4 SAS/SATA IB connector and two RJ45 pass-through management ports (RS232 and 1 GbE Ethernet). The RTM-ATCA-SXXX includes a modular management controller (MMC) and conforms to the PICMG 3.1 revision 2 specification.

11.1 Features of the Advanced Rear Transition Module

The RTM-ATCA-SXXX is a 8U (233.35mm) x 80mm single slot Rear Transition Module with very few active silicon components. The prominent attributes include:

∙One X4 IB-SAS/SATA port (Infiniband style SFF-8470)

∙Accommodates up to two disks (manufacturing assembly option)

∙1Gb RS232 LAN port (pass through connection to Front ATCA blade)

-LED drive logic

∙RS232 Port ((pass through connection to Front ATCA blade)

∙MMC, with hot swap and LED control,

∙FRUID serial EERPORM (note: The FRU ID is not a separate part but rather embedded in the MMC controller.)

∙Temperature sensors

∙Voltage sensors

∙SPI flash memory

11.2I/O PICMG Standards Compliance

The RTM-ATCA-SXXX is fully compliant with the following PCI Industrial Computer Manufacturers Group (PICMG) specifications:

∙PICMG 3.1

11.3I/O Interfaces

The RTM-ATCA-SXXX mates to ATCA carrier blades via zone-3 connectors in a fashion conforming to PICMG 3.0 ATCA specification revision 2. Internally the ATCA- S201 provides connections to “bridge” between zone3 and the RTM faceplate as follows:

6806800H62B ATCA-S201ATCA-S201 Installation and Use Guide 118