Table of Contents
Advertisement
A+ Workstation 4021A-T2 User's Manual
3rd Power Supply Alarm Header
Connect a cable from your power
supply to JPWF to provide you with
warning of a power supply failure.
The warning signal is passed through
the PWR_LED pin to indicate a power
failure. See the table on the right for
pin defi nitions.
Power Fail Alarm Reset Header
Connect JAR to the alarm reset but-
ton on your chassis (if available) or to
a microswitch to allow you to turn off
the alarm that sounds when a power
supply module fails. See the table on
the right for pin defi nitions.
Compact Flash Power Header
A Compact Flash Card Power header
is located at JWF1. For the Compact
Flash Card to work properly, you will
first need to connect the device's
power cable to JWF1 and correctly set
the Compact Flash Jumper (JCF1).
Chassis Intrusion
A Chassis Intrusion header is located
at JL1. Attach the appropriate cable to
inform you of a chassis intrusion.
3rd Power Supply
Alarm Header
Pin Defi nitions (JPWF)
Pin#
Defi nition
1
P/S 1 Fail Signal
2
P/S 2 Fail Signal
3
P/S 3 Fail Signal
4
Reset (from MB)
Note: This feature is only available when using
redundant power supplies.
Alarm Reset Header
Pin Defi nitions (JAR)
Pin#
Defi nition
1
Ground
2
Reset Signal
Compact Flash
Power Header
Pin Defi nitions (JWF1)
Pin#
Defi nition
1
+5V
2
Ground
3
Signal
Chassis Intrusion
Pin Defi nitions (JL1)
Pin#
1
2
5-18
Defi nition
Battery voltage
Intrusion signal
Advertisement
Table of Contents
