PowerShield AS400 (PSAS400) Card Remote Shutdown Quick Guide
1. Product Outlook
DB-9 port
Top View
Side View
2. Product Introduction
The PSAS400 communication card provides contact closures for remote monitoring of your
UPS. To meet different application requirements the PSAS400 card is capable of selecting the
status of the dry-contact signal (active close or active open) by setting jumper. The suitable
applications are listed below:
IBM Server, Personal PC & Workstations equipments
Auto-controlled industrial equipment & communication applications
3. Installation
Step 1: Remove cover of Intelligent Slot
on the rear panel of the UPS.
Step 3: The cover of PSAS400 should
attach close to the rear panel. Using
screwdriver, secure the AS400 to the
UPS chassis with 2 screws.
9-pin port
Top View
Side View
Step 2: Insert PSAS400 card into
Intelligent Slot.
Step 4: Use the 9-pin communication cable
to connect UPS and equipment to implement
the remote monitoring and control.
9 pin com. cable
4. Specifications
Internal circuit of DB-9 port
V. 3.0
RS-232 port
Electric Parameter of DB-9 port
Parameter
Resistor*
DC Current
Diode
Reverse Voltage
Forward Current
Peak Forward Current
Relay
DC Voltage
DC Current
Note: It's required to retain the DC current lower than 6mA. Otherwise,
within DC current limitation in the serial loop of Remote Shutdown. (e.g. 2K resistor with at least 0.1W
rating power). Refer to diagrams in Application.
Pin Assignment
Pin Assignment
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
P.S. The shutdown pin (pin4 & pin3) only accepts 3-10s high level signal to perform the UPS shutdown.
Function Description
AC Status
Pin 1 & Pin 5 connected
Pin 2 & Pin 5 connected
Pin 6 & Pin 5 connected
Pin 7 & Pin 5 connected
Pin 8 & Pin 5 connected
Pin 9 & Pin 5 connected
Symbol
Max.
Min.
I
6
R
V
6
R
I
50
F
I
1
F (Peak)
V
24
DC
I
1.0
DC
Function
I/O
UPS Failure
O/P
UPS Audible Alarm
O/P
GND (Common for Pin 4)
Power Ground
Remote Shutdown
I/P
Common for Relays
Power Supply
Bypass Active
O/P
Low Battery
O/P
UPS On
O/P
Utility Failure
O/P
AO Status
Pin 1 & Pin 5 disconnected
UPS failure, utility failure, low
Pin 2 & Pin 5 disconnected
Pin 6 & Pin 5 disconnected
Pin 7 & Pin 5 disconnected
Pin 8 & Pin 5 disconnected
Pin 9 & Pin 5 disconnected
9-pin port
Unit
1
mA
-
V
-
mA
-
A
-
V
-
A
it's necessary to add one resistor
Reason
UPS failure
battery, bypass active
Bypass active
Battery voltage is low
UPS is in inverter mode
Utility failure
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