Emerson ATCA-S201 Installation and Removal of the Rear Transition Module, Module Current

12 RTM-ATCA-SXXX

Installation

This chapter contains the procedures for installing and removing the RTM-ATCA-SXXX.

12.1 Installation and Removal of the Rear Transition Module

The RTM-ATCA-SXXX can be installed into an ATCA shelf (chassis) with a midplane made for front and rear board installations. The module must be installed in the slot directly behind the host ATCA node board. These back-to-back slots have common pins to enable passing of signals via the Zone-3 connector complex.

12.2 Important Information about Your Chassis

Before installing the rear transition module, verify the module’s part number to ensure that the correct rear transition module is being installed into the system. For information on identifying the rear transition module, see Section11.6.

12.2.1 Safety Statement

The RTM-ATCA-SXXX is designed to comply with UL60950-1, and is intended to be used with similarly tested ATCA products that have a user’s guide detailing user installation of module accessories.

12.2.2 Observe Maximum Module Current Requirements

There are several manufacturing options for the RTM. The diskless version of the RTM requires no power from the front ATCA node board, but may draw up to 200mA from the 3.3 V management power source. Be sure to validate that the host chassis can supply the RTM slot with these maximum current requirements.

Table 58 Max RTM Module Current Requirements

Module Current	RTM-ATCA-
	SXXX-0
	(No Disk)
+12 V (spin up < 100	0.55 A(6.6W)
μsec)
+12 V normal	0.55 A (6.6 W)
operating
+12 V (idle)	0.55 A (6.6 W)
OFF STATE	LESS THAN
	0.4 W

RTM-ATCA-SXXX-2 (Two disk version)

2.05A (25 W) (staggered spin-up)

2.05A (24.6 W)

1.55A (18.6 W) LESS THAN 0.4 W

6806800H62B ATCA-S201ATCA-S201 Installation and Use Guide 124