REAR PANEL IN/OUT CONNECTOR PINS FUNCTION DESCRIPTION
Pin #
Function
Description
Referenced to
A1 ~ A5
-V
Main Negative Output Voltage
A6 ~ A10
+V
Main Positive Output Voltage
B1
SIGNAL RETURN
Return for the following control signals: ENABLE, INHIBIT;
supervisory signals TEMP ALARM, AC FAIL, AUX , DC OK, PS EXIST;
and PMBus signals: SCL, SDA, SMB ALERT;
SIGNAL RETURN and mentioned signals are isolated from the output
terminals and -SENSE.
SIGNAL RETURN
B2
PS EXIST
Indicates that Power Supply module is inserted into the shelf. "Active
Low" when connected to SIGNAL RETURN.
SIGNAL RETURN
B3
+12V AUX OUT
11.2~12.5V Auxiliary Voltage Output referenced to SIGNAL RETURN. The
maximum load current is 0.5A. This output has a built in ORing diode, and
is not affected by the INHIBIT /ENABLE signal or any other fault.
SIGNAL RETURN
B4
-SENSE
Negative sense, The -SENSE signal should be connected to -V on
Power Supply, or Load side.
-SENSE
B5,B10, B11, B13,
B14, B16, B17, B20 NOT CONNECTED
B6
CURRENT SHARE
Current sharing signal should be connected when Power Supplies are
connected in parallel to allow accurate current share between units in
Parallel operation.
-SENSE
B7 (short pin)
ENABLE
Turns ON the main output by electrical signal or dry contact (0~0.6v or short).
SIGNAL RETURN
B8
VOLTAGE PROGRAMMING Input (0~5V) referenced to –S. Provides Vout programming by Voltage.
Refer to Instruction Manual Chapter 1.5,1.6
-SENSE
B9
+SENSE
Positive sense. The +SENSE signal should be connected to +V on
Power Supply, or Load side.
-SENSE
B12
INHIBIT
Turns OFF the main output by electrical signal or dry contact (0~0.6v or short). SIGNAL RETURN
B15
DC OK
DC OK signal. LOW when the output voltage is higher than 85~95% of
set Vout. Open collector type (15V, 10mA).
SIGNAL RETURN
B18
TEMP ALARM
TEMP ALARM signal. LOW when the internal temperature is within safe
limit, HIGH approx. 10°C below Thermal shut down. Open collector
type (15V, 10mA).
SIGNAL RETURN
B19
+5V/V_REF
5V fix output for standard option unit. Variable when Voltage
programming is done with PMBus option.
-SENSE
B21
AC FAIL
AC FAIL Signal, LOW when the input voltage is 85Vac<Vin<270Vac,
HIGH when the input voltage is 85Vac>Vin or Vin>270Vac. Open
collector type (15V, 10mA).
SIGNAL RETURN
C1 (long pin)
PROTECTIVE
GROUND
AC GROUND connection.
Refer to safety instructions for safety standards requirements
C2 (long pin)
AC
NEUTRAL
AC NEUTRAL refer to safety instructions for safety standards requirements
C3 (long pin)
AC
LINE
AC LINE refer to safety instructions for safety standards requirements.
REAR CONNECTOR PIN ALLOCATION CHART
A1
A2
A6
A10 B3
B21
A5
C1
C2
C3
A9 B1
B19
IN/OUTPUT CONNECTOR POSITRONIC P/N: PCIM34W13M400A1/AA
5
