4.3.11 LAN 2 Activity INDICATOR LED
The green LAN 2 activity indicator lights whenever a link is detected. The LED blinks if network activity is
detected.
4.3.12 LAN 2 Speed INDICATOR LED
The LAN 2 speed indicator lights green whenever a 100 MBit/s link is detected and lights yellow when a GBit/s
link is detected. For 10 MBit/s it remains dark.
4.4 BATTERY CIRCUIT
An on board battery provides power for the data retention of RTC and CMOS RAM. The battery can be changed
in the field (battery type is: Renata CR2032 3V Lithium Coin Cell).
●
Remove the 6 screws to open the right side panel.
Figure 51:
Removing the 6 screws
●
Pull the battery out of its socket and replace it with the new one.
4.5 RS485 / RS422 INTERFACES
When using the optional RS485 / RS422 module (called SERIF-2) with a half-duplex interface (using a 2-wire
connection) then it is necessary to control the transmit driver enable. This is automatically done by the UART
with the RTS signal, but only if it is correctly enabled in the BIOS setup (please refer to the appropriate BIOS
User Manual).
4.6 WATCHDOG TIMER
The PIP uses the Super-IO watchdog timer implemented in the SCH3114. The hardware reset capability have to
be enabled with the DIP switch J6 (please have a look to chap. 3.4.6). A Win XP driver is available at the MPL
AG homepage.
4.7 TEMPERATURE SENSORS
There are several temperature sensors available on the PCB. Three of them are located on the SMBus.
SMBus Address Sensor Type
Temperature
Readable with
$30
MAX6681 remote
CPU die (via CPU thermal diode)
Mother Board Monitor 5.3.7.0 with Update 2
$30
MAX6681 local
PCB
Mother Board Monitor 5.3.7.0 with Update 2
$90
LM75
Memory
Mother Board Monitor 5.3.7.0 with Update 2
Two more are directly integrated in the CPU die (one per CPU core). This Digital Thermal Sensors (DTS) are
readable with the CoreTemp tool.
2012 by MPL AG
46
MEH-10126-201 Rev. F
High-Tech • Made in Switzerland
PIP19 / PIP20 / PIP22 / PIP23
Technical Reference Manual
