Product Description
4
1.6
Interfacing with the Environment
1.6.1
RTM (rear transition module)
The RTM8020 is a single slot (6HP) ATCA Rear Transition Module. This module provides additional
connectivity for AT8020 CPU front blade.
1.6.1.1
Standard Compliance
• PICMG3.0 R2.0 ECN002 - Advanced Telecommunication Computing Architecture
• SAS1R10 - Serial Attached SCSI - 1.1 Revision 10. (SAS-1.1)
• SFF-8470 (T10 Technical Committee and SCSI Trade Association)
1.6.1.2
SAS Feature
• Total of two (2) 3Gbit/s SAS ports available on the RTM face plate through one external SAS connector
• Compliant to SAS-1.1 Revision 10 / SFF-8470
• SAS signal integrity guarantee over a four meters cable
1.6.1.3
Serial Port Feature
• One (1) serial port available on the RTM face plate through one (1) RJ-45 connector.
• RS-232 signals level at RTM face plate connector.
• Serial port speed capability is: 9kbits/s to 115kbits/s.
1.6.1.4
Onboard SAS Drive
• Support one (1) 2.5” SAS Drive
• Support dual-port SAS Drive
1.6.1.5
FRU Data EEPROM
• FRU Data EEPROM size is 64Kbit (8K * 8 bit)
1.6.1.6
Hot Swap
The RTM8020 supports hot swapping by using the switch connected to the face plate lower ejector. This
switch indicates the coming hot swap action. The insertion of the RTM to a slot is always done over a non
powered connector. During the extraction procedure, the management power is disabled only when the
RTM8020 is removed. This procedure meets the ATCA AMC behavior.