Pc-concepts SHG2 DP User Manual download pdf (Page 72)

Connections Intel® SHG2 DP Server Board Technical Product Specification

Intel Order Number C11343-001 Revision 1.0

8.8 System Management Interfaces

8.8.1 ICMB Connector

CN21 [Key-N]

The external Intelligent Chassis Management Bus (ICMB) provides external access to IMB

devices that are within the chassis. This makes it possible to externally access chassis

management functions, alert logs, post-mortem data, etc. It also provides a mechanism for

chassis power control. As an option, the server can be configured with an ICMB adapter board

to provide two RJ45 8-pin connectors to allow daisy-chained cabling. Additional information

about the ICMB can be found in the External Intelligent Management Bus Bridge External

Program Specification.

Table 43. ICMB Connector Pin-out

ICMB [Key-N]

Pin Name

1 XP05S

2 ICMB_TX

3 ICMB_TX_ENB

4 ICMB_RX

5 GND

8.8.2 Auxiliary I

C* Connector

IPMB CN44 [Key-D]

The baseboard provides a 3-pin auxiliary I

C connector for OEM access to the IPMB.

This

connector is not isolated when power is off.

Any devices connected must remain powered in

this state or the BMC will not work properly.

Caution: A shorted I

C connection at the auxiliary I

C connector will prevent restoration of main

power because the BMC needs the bus to boot the server from standby power.

Table 44. IPMB Connector Pinout

CN44 [Key-D]

Pin Name

1 IPMB_DATA+00

2 GND

3 IPMB_CLK+00

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 96 97

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Pc-concepts SHG2 DP User Manual Page 72