6806800H62B ATCA-S201ATCA-S201 Installation and Use Guide 118
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
11.2 I/O PICMG Standards Compliance
The RTM-ATCA-SXXX is fully compliant with the following PCI Industrial Computer
Manufacturers Group (PICMG) specifications:
PICMG 3.1
11.3 I/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:
