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HighWire HW400c/2 User Reference Guide Rev 1.0
3.7 Hot Swap Support
The HW400c/2 complies with the PICMG 2.1 specification for full hot swap in
CompactPCI systems as defined by the PICMG 2.1 R2.0 specification. Hot swap
functions, such as power FET control, are provided by a Linear Technologies
LTC1664 Hot Swap Controller.
3.7.1 Hot Swap o
All signals to and from the CompactPCI backplane connectors J1 and J2 are
precharged to a voltage of 1.0V. This voltage is derived from the 3.3V early power
s
3.7.2 Hot Swap on J3
The Ethernet PSB sig s
operation.
There are power pins assi
Section 3.4.5.1). The
the Hot Swap controller.
3.7.3 Hot Swap on J4
Signals to and from th J ge of
0.7V. This voltage is r
3.7.4 Hot Swap on J5
The J5 rear I/O signals ar swap
considerations must b
the J5 rear I/O connector
n J1 and J2
ource.
nal on J3 do not require a precharge voltage for hot swap
gned to palces that would normally be User I/O on J3 (see
se pins are part of “late power” and are switched on and off by
e recharged to a volta
de ived from the 3.3V early power source.
4 H.110 CT Bus connector are p
e not bussed on the backplane. Any special hot
e handled by the PTMC modules and/or RTM making use of
.
October 10, 2006 Copyright 2006, SBE, Inc. Page 44