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Operation (Special Conditions)
OPERATION OF MANUAL BYPASS SWITCH
Turn this switch to "BYPASS" before performing any maintenance on the UPS with the connected load supported. Connected equipment will receive
filtered AC mains power, but will not receive battery power in the event of a blackout.
SWITCHING UPS TO "BYPASS" MODE
• Press the "OFF" button.
• Turn the "Manual Bypass" Switch clockwise from NORMAL to BYPASS.
• Turn the Main Input Switch Circuit Breaker OFF.
SWITCHING UPS TO "NORMAL" MODE
• Turn the Main Input Switch Circuit Breaker ON.
• Turn the "Manual Bypass" Switch counterclockwise from BYPASS back to NORMAL.
• Press the "ON" button.
Communications
RS-232 INTERFACE
This female DB9 port connects your UPS via an RS-232 cable to a workstation or server equipped with Tripp Lite software. The port uses RS-232
communications to report UPS status and power conditions. Using this port, Tripp Lite software can monitor and manage network power and
automatically save open files and shut down equipment during a blackout. Contact Tripp Lite Customer Support for information on available SNMP,
network management and connectivity software and products.
RS-232 signals and operations include: load level, battery status, battery level, operation mode, AC input voltage, AC output voltage, AC input
frequency, temperature inside unit, set shut-down delay time, enable/disable alarm and remote shutdown.
Hardware:
Baud Rate:
2400 BPS
Data Length: 8 bits
Stop Bit:
1 bit
Parity:
NONE
AS-400 INTERFACE
This female DB9 port connects your UPS to an IBM AS-400
computer via an AS-400 cable. The port uses AS-400 communications to
report UPS status. It can be used to allow an AS-400 to automatically save
open files and shut down its operating system during a blackout. AS-400
protocol includes: operation on inverter, operation on AC power supply,
operation on battery and low battery alarm.
Pin assignment:
Pin 5:
Common
Pin 6:
Operation on AC power supply
Pin 7:
Low battery alarm
Pin 8:
Operation on inverter
Pin 9:
Operation on battery
AS-400 INTERFACE TABLE
Pin 6,5
Battery
OFF
Low Battery
OFF
Direct Mains Supply
ON
Inverter
OFF
* Inactive: may be in either state.
Pin 7,5
Pin 8,5
Pin 9,5
*
ON
ON
ON
ON
ON
OFF
OFF
OFF
*
ON
*
(continued)
Pin assignment:
Pin 2: TXD (Transmit Data)
Pin 3: RXD (Receive Data)
Pin 5: GND (Signal Ground)
10
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