Data Sheet
Compact Power Line
CP2000AC54 Front-End Power Supply
Signal Definitions
All hardware alarm signals (Fault, PFW, OTW, Power Capacity) are open drain FETs. These signals
should be pulled HI to either 3.3V or 5V. Maximum sink current 5mA. An active LO signal (< 0.4Vdc). All
signals are referenced to Logic GRD unless otherwise stated. Contact your Lineage Power representative
for more details.
Function
Output Enable
Label
Enable
Type
Input
Description
If shorted to LOGIC_GRD, the rectifier output is enabled
when using I
2
C mode of operation. May also be toggled to
reset a latched OFF rectifier. Function not available in
RS485 mode.
An open drain FET; normally HI, indicating output power is
present. Changes to LO at least 5msec before the output
voltage is lost.
Interrupt signal via I
2
C lines indicating that service is
requested from the host controller. This signal pin is pulled
up to 3.3V via a 10kΩ resistor and switches to active LO
when an interrupt occurs.
Indicates that an internal fault exists. An open drain FET;
normally HI, changes to LO.
Short pin, see Status and Control description for further
information on this signal.
Short pin, connects last and breaks first; used to activate
and deactivate output during hot-insertion and extraction,
respectively. Ref: 54_OUT (-DC)
See Status and Control description for further information
on this signal. Ref: 54_OUT (-DC).
Allows changing of output voltage through an analog
voltage input or via resistor divider.
An open drain FET; normally HI, changes to LO
approximately 5°C prior to thermal shutdown.
An open drain FET; Used to indicate rectifier operation
mode; HI indicates 2000W operation and LO indicates
1200W operation.
Voltage level addressing of rectifiers within a single shelf.
Ref: 54_OUT (-DC).
Voltage level addressing of rectifiers within multiple
shelves. Ref: 54_OUT (-DC).
Diode OR’ed 8Vdc drain; used to back bias
microprocessors and DSP of failed rectifier from operating
rectifiers. Ref: 54_OUT (-DC).
Resets the I
2
C lines to I
2
C line 0.
5V at 0.75A provided for external use by either adjacent
power supplies or the using system.
A single wire interface between each of the power unit
forces them to share the load current. Ref: 54_OUT (-DC).
I
2
C line 0.
I
2
C line 1.
RS485 line.
Power Fail Warning
PFW
Output
I
2
C Interrupt
Alert#_0
Alert#_1
Output
Rectifier Fault
Module Present
ON/OFF
Fault
MOD_PRES
ON/OFF
Output
Output
Input
Protocol select
Margining
Over-Temperature Warning
Power Capacity
Protocol
Margin
OTW
POWER_CAP
Input
Input
Output
Output
Rectifier address
Shelf Address
Back bias
Unit_addr
Shelf_addr
8V_INT
Input
Input
_
Mux Reset
Standby power
Current Share
I
2
C Line 0
I
2
C Line 1
RS485 Line
Reset
5VA
Ishare
Input
Output
-
SCL_0, SDA_0 Input
SCL_1, SDA_1 Input
RS_485+
RS_485-
Input
Lineage Power
7
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
