SBE HW400c/2 User Manual

 

HighWire HW400c/2 User Reference Guide Rev 1.0 

 

 sequence is a coordination between the operator, the hardware on the 

W400c/2 board, and the host system board that is capable of basic, full, or high-

availability hot swap. Table 27 outlays the Hot Swap insertion and extraction 

 

 

The hot swap
H

sequences. 

 

 

INSERTION 

he board is

 the

e 

tu

e LE

AT

ed to a high state that 

by th

I brid

 host

 via the ENUM# 

 ind

at a boa

rted. 

t sy

ard initia

0c/2 

d instruct

I bridge 

blue L

e off state

blue LED assur s the operato

nal. 

When t

 inserted into

 enclosure, th following 

occurs: 

1.  Hardware 

T

rns on the blu

D. 

2.  The L_S

 signal is forc

is 

sensed 

3.  The PC

e PCI bridge. 

s the

ge inform

 system

signal to
The hos

icate th

rd has been inse

li

0

4. 

stem bo

zes the HW4

to turn ff the 

board 

E

an

5.  Th

s the PC

 of the 

 o
e

D. 

r that 

the board is functio

EXTRACTION 

 is extracted from the en

sure, the fo

  ompactPCI ejector is

d down to start 

the extraction sequence.  The ejec

tch forces the 

AT sig

high state. 

CI brid

 the cha

STAT an

causes ENUM# to toggle, informing the host system 
board that the HW400c/2 board is about to be extracted. 

3.  The operator then waits for the blue LED to turn on 

before attempting to fully eject the HW400c/2 board. 

4.  The host system halts all applications associated with the 

HW400c/2 board that is about to be extracted. 

5.  The host system then instructs the PCI bridge to turn on 

the blue LED. 

6.  After the blue LED turns on, the operator can continue 

with the extraction of the board. 

When the board
occurs: 

 

clo

llowing 

1.  The bottom C

 flippe
tor swi

L_ST

nal to a 

2.  The P

ge senses

nge in L_

d 

 

 

 

 

For a complete description of all hot swap functions, see the PICMG 2.1 R2.0 specification. 

 
 
 
 

October 10, 2006 

Copyright 2006, SBE, Inc. 

Page 

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