Emerson ATCA-S201 Manuel D’Utilisation

RTM‐ATCA‐SXXX Mechanical and Connector Information 

6806800H62B 

ATCA‐S201 Installation and Use Guide 

 

137 

Table 69 Connector J33, Miscellaneous RTM Signal Descriptions 

PS0# 

Active low RTM present signal.PS0# is tied to logic GND on the ATCA blade.  PS0# (Connector 
J33) and PS1# (Connector J30) shall be connected through a diode on the 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. 

13.2.4.3 

Connector J30, Power Supply for Advanced RTM 

The RTM-ATCA-SXXX supplies 12V and the 3.3V stand-by voltages to an Advanced 
rear transition modules (RTM) via the P30 connector.  The P30 connector 

assignments also include the IPMI-L interface, PS1#.  If needed, an Advanced RTM 

will convert the main 12V payload power into 1.2V, 1.5V, 2.5V and 3.3V by using 

DCDC converters.   

The RTM-ATCA-SXXX P30 connector is implemented with the Metral® 89096-xxx 
from FCI (

 

e
d

c

b
a

J30- ATCA

2         1

   

Figure 47 ‘J30’ RTM Power Receptacle  

13.2.4.4 

Connector J30, RTM Power Pin Assignment 

The RTM-ATCA-SXXX J30 connector pin assignments and descriptions appear below. 

Table 70 J30, RTM Power Pin Header Assignment 

Row# 

Interface 

1 

2 

e Pwr  PS1# 

NC 

d Pwr  +12V PP 

+12V PP 

c IPMI IPMI_SCL_L 

IPMI_SDA_L 

b Pwr  Logic_GND 

+3.3V MP 

a Pwr  Logic_GND 

Shelf_GND