Sun Microsystems CP3250 manual Table B-9Zone 3 Signal Descriptions

B.3.5.5 Zone 3 Signal Descriptions

TABLE B-10 provides descriptions of the signals listed in the Zone 3 pin assignment tables (TABLE B-6 through TABLE B-9).

TABLE B-9Zone 3 Signal Descriptions

Signal Name	Description
IPMI_SCL_L	IPMI bus clock signal, as defined in AMC.0 specification. RTM shall have a pull-up
	resistor for this signal as indicated in AMC.0 specification.
IPMI_SDA_L	IPMI bus data signal, as defined in AMC.0 specification. RTM shall have a pull-up
	resistor for this signal as indicated in AMC.0 specification.
PS0#, PS1#	Active low RTM present signal.PS0# shall be tied to logic GND on the ATCA blade, PS1#
	shall be pulled up to 3.3V Management Power on the ATCA blade, PS0# and PS1# shall
	be connected through diode on RTM, exactly as defined in AMC.0 specification. PS1# is
	last mate on Power connector and PS0# is on the opposite end of the set of connectors.
	Logic low on PS1# indicates that RTM is present and fully inserted.
Enable#	When low indicates to RTM that it is fully inserted and that MMC can start execution.
	Logic high shall keep MMC in reset state. This signal shall have a pull-up resistor as
	indicated in AMC.0 specification.
Shelf_GND	Frame/Chassis Safety Ground.
Logic_GND	(Logic 0vdc). Logic Ground- Common return for Management Power Payload Power,
	reference potential for single-ended logic signaling, and shielding for differential pair
	signals in the AMC Connector.
12VPP	12V Payload Power, enabled after successful E-keying, following AMC.0 specification.
	RTM shall meet requirements posted for payload power in AMC specification.
3.3V_MP	3.3V Management Power. RTM shall meet requirements posted for management power in
	AMC.0 specification.
RTM_RX	AMC Extended Options receive differential pair signals. Note that this specification takes
	ATCA Blade perspective, which means that RX signals are driven by RTM and received
	by ATCA Blade.
RTM_TX	AMC Extended Options transmit differential pair signals. Note that this specification
	takes ATCA Blade perspective, which means that TX signals are driven by ATCA Blade
	and received by RTM.
SAS_TX	SATA/SAS transmit differential pair signals.
SAS_RX	SATA/SAS receive differential pair signals.
Serial 0	RS-232 Serial Signals, Transmit, Receive, Clear to Send, Request to Send, Data Terminal
	Ready, and Data Set Ready.
LAN0	10/100/1000BASE-T signals.
LAN0_CTV	10/100/1000BASE-T transformer Center Tap signal, which could be used to terminate
	center tap of transformers, if they are placed on RTM. This signal is applicable if Ethernet
	PHY is located on ATCA blade, while transformers are located on RTM.

Appendix B Physical Characteristics B-13