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1OU OCP Power Management Controller (PMC)
ELECTRICAL SPECIFICATIONS
System on Module (SOM) Core
All Artesyn current generation shelf and power management controllers utilize a shared SOM that fits onto a customer carrier. The SOM provides the
core processing functionality along with storage. Communications from the SOM are routed by the carrier board which provides the mechanical form
factor and connections for different shelves.
Microprocessor
The SOM is based on an ASPEED AST2620, which provides an ARM Cortex A7 core and a variety of peripherals.
Memory and Storage
The SOM provides the following storage:
1 GB of DDR4 Memory
•
Two separate banks of 64 MB of SPI NOR Flash, for boot image storage and redundancy
•
8 GB of eMMC split into two redundant sections for the root file system, logging, etc
•
Connectivity
The SOM provides the following connectivity to the carrier although some products might repurpose some pins for different functionality.
Used
Primary Function
Provided
1
1
MAC
12
2
I2C
2
1
UART (flow control)
6
1
UART (no flow control)
11
1
ADC
53
24
GPIO
PMC Carrier
The SOM is mounted on a carrier card that provides the connection between the SOM and the rest of the system.
PMC Carrier FRU
The PMC supports a 64 KB EEPROM for storage of manufacturing data.
PSU Control Signals
Item
RS485/Modbus
Alert
Input Voltage
The PMC can be powered from a 48 V input from the power shelf itself.
The PMC should draw no more than 7 W when at absolute full performance.
2
advancedenergy.com
Alternate
NA
x4 GPIO
x4 GPIO
x2 GPIO
NA
NA
Description
The PMC supports one Modbus connection which is shared by all PSUs on the shelf.
The PMC supports an active low PSU_ALERT_N signal from each of up to 6 PSUs. The signals are available on the
GPIOs of the processor.
Usage Breakdown
1 - Front panel ethernet port
1 - Shelf peripherals (Reserved)
1 - PMC peripherals (EEPROM)
1 - Shelf Modbus (Shared PSU)
1 - Debug UART (Front panel)
1 - PMC temp sensor
6 - Module reset (Reserved)
6 - Module alert (Input)
1 - Vout select (Reserved)
3 - PCB revision
2 - Fronts LEDs
3 - Optional debug LEDs
3 - Optional debug inputs
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