Other Connectors And Headers; Chassis Intrusion Header; Storage Device Activity Led Header; Intelligent Platform Management Bus (Ipmb) Connector - Penguin Computing Relion 1900e Technical Manual

10.5 Other Connectors and Headers

10.5.1

Chassis Intrusion Header

The server board includes a 2-pin chassis intrusion header which can be used when the chassis is configured
with a chassis intrusion switch and the proper platform management SDR is programmed and installed. On
the server board, this header is labeled "CHAS_INTR" and is located on the right edge of the server board.
The header has the following pin-out.
If configured, the BMC can monitor the state of the Chassis Intrusion signal and makes the status of the
signal available through the Get Chassis Status command and the Physical Security sensor state. A chassis
intrusion state change causes the BMC to generate a Physical Security sensor event message with a General
Chassis Intrusion offset (00h).
The BMC detects chassis intrusion and logs a SEL event when the system is in the on, sleep, or standby state.
Chassis intrusion is not detected when the system is in an AC power-off (AC lost) state.
The BMC hardware cannot differentiate between a missing chassis intrusion cable or connector, and a true
security violation. If the chassis intrusion cable or connector is removed or damaged, the BMC treats it as if
the chassis cover is open, and takes the appropriate actions.
System fans can be set to boost to maintain proper system cooling when a chassis intrusion is detected.
10.5.2

Storage Device Activity LED Header

The server board includes a 2-pin storage device activity LED header used with some SAS/SATA controller
add-in cards. On the server board, this header is labeled "HDD LED" and is located on the left edge of the
server board. The header has the following pin-out.
10.5.3

Intelligent Platform Management Bus (IPMB) Connector

The Intelligent Platform Management Bus (IPMB) is designed to be incorporated into mission critical server
platforms for the main purpose of supporting Server Platform Management. The server board includes a 4-
pin Intelligent Platform Management Bus (IPMB) connector located on the left edge of the server board. The
connector has the following pin-out.
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Relion 1900e/2900e Manual

Table 43. Chassis Intrusion Header Pin-out ("CHAS_INTR")

Signal Description
FP_CHASSIS_INTRUSION
GROUND

Table 44. Hard Drive Activity Header Pin-out ("HDD_LED")

Signal Description
LED_HDD_ACT_N
TP_LED_HDD_ACT

Table 45. IPMB Connector Pin-out

Signal Description
IPMB Data
Ground
IPMB Clock
5V AUX
Pin#
1
2
Pin#
1
2
Pin#
1
2
3
4
Revision 1.3