Sun Microsystems Netra CT 410, Руководство по обслуживанию

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A-34 Netra CT Server Service Manual • February 2007
FIGURE A-16
On-Board Connectors and Interfaces for the Netra CP2500 RTM-S
I
2
C Serial Bus Access Header
The I
2
C serial bus is routed onto the Netra CP2500 RTM through the RJ5 backplane
connector (which is labeled as J0401 on the transition module). The Netra CP2500
transition module I
2
C bus supports one I
2
C function–providing information about
itself through nonvolatile memory.
FIGURE A-17
shows the I
2
C serial bus access
header J1502and
TABLE A-24
lists the pin assignments.
FIGURE A-17
I
2
C Serial Bus Access Header Pins
TABLE A-24
I
2
C Serial Bus Access Header Pin Assignments
Pin Signal
1 12C_PWR (SMC 3.3V)
2 RTM_SDA (Data/Address)
3 RTM_SCL (Clock)
4 GND
Co
m
B
A
ENET
1
ENET
0
ENET 3
USE ONL
Y
WITH CP2500
ENET
2
RJ3 connector
RJ5 connector
Serial port connectors
10/100/1000 Ethernet connectors
J0501 and J0502
connectors
10/100/1000 Ethernet connectors
(J0201)
(J0401)
1 4