Hotswap
CP690
Page 4 - 4
© 2002 PEP Modular Computers GmbH
ID 20955, Rev. 03
4.1.1.1
The Hotswap Backplane
The hotswap backplane has staggered pins to ensure defined power sequencing.
Figure 4-1: Illustration of Staggered Pinning on the Hotswap Backplane
Note:
Some special signals (e.g. ENUM, HEALTHY, BDSEL...) have particular rout-
ing requirements.
EXPLAN ATO RY KEY
*EA RLY PO W ER: a part of VCC , 3.3V, V(I/O) and G ND
*BA CK EN D PO W ER: the m ain part of VC C,
+3.3V, V(I/O ), +/-12V and GN D
*HEALTHY: only for high availability
Step 3
Step 1
Step 2
EARLY POW ER *
BACK END POW ER *
PCI SIG NALS
ENUM #
HEALTHY# *
BD_SEL#
BACKPLANE
BOARD
