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HighWire HW400c/2 User Reference Guide Rev 1.0
3.5.4 Mezzanine Card Power
Each of the two mezzanine card sites on the HW400c/2 is allotted a portion of the
total power budget for the board. For the standard version, the mezzanine power
budget is 16.2 Watts for each slot, while the optional high-power version allows 26.4
atts for each slot. The power budget is divided between the 3.3V, 5V, and 12V
po
16. Mezzanin Card Power Bu
ower (pe
W
wer rails as shown in Table 16.
Table e dget
P r site)
HW400c/2
Version
zzanine C rd
Total Power
(per site
3.3V power
(Per slot)
5V po
(Per slot)
12V power
Me a
)
wer
(Per slot)
Standard
without J4
10 Watts 16.2 Watts 5 Watts 1.2 Watts
Standard
wi
29.4 Wat 1 a 12 W Wat
th J4
ts 5 W tts atts 2.4 ts
Optional High
Powe 4
26.4 Wat 1 W 7.5 W 2.4 Wat
r with J
ts 6.5 atts atts ts
The sta rsion wi er supplied from t pactPCI J4
connect ds the hig t power rat for the mezzanine card slots, because that
version has a lower power processor th th nal high version.
3.5.5 C Conn r Summ y
Table 1 arizes th ezzanine card connections for each supported type. Both
es A ort th me array o onnections. Conne n outs are shown in
Section 3.5.7, an .5.8
ble 17. PTM /PMC Connector Summary
Type
N1/JN2 N N4
ndard ve th additional pow he Com
or yiel hes ing
an e optio -power
PTMC/PM ecto ar
7 summ e m
sit and B supp e sa f c ctor pi
s 3.5.6, d 3
Ta C
Mezzanine
Card
J J 3 J
PMC
PCI or
PCI-X
Not Used (t ) s User I/Ori-stated 55 Pin
PT2MC
PCI or
PCI-X
Local CT Bu
(20-bit)
55 Pins User I/O
s
PT5MC
PCI or
PCI-X
Local CT Bus
(32-bit)
2 LAN Ports
31 Pins User I/O
October 10, 2006 Copyright 2006, SBE, Inc. Page 33