Rackmount Solutions Enterprise Series - Manual (Page 11)

10
The communications port is a standard DB9 female with both RS232 and simulated contact
closure capability. The Enterprise series units will poll the port and activate the port for
RS232 or contact closure in accordance with the type of cable it finds connected to the
port. To change the port configuration requires the unit be turned off and restarted with the
desired cable connected. The pinout for the port is depicted per the chart below.
Pin 1: Instant off ( pull and hold this pin low to turn off output receptacles)
Pin 2: /TXD
Pin 3: /RXD and receive ups shutdown command
Pin 4: Simulated contact closure AC fail, NO
Pin 5: Ground
Pin 6: Simulated contact closure low battery warning, NO
Pin 7: Simulated contact closure AC fail, NC
Pin 8: AC fail signal (high to low signal)
Pin 9: Not Used
COMMUNICATIONS PORT
A LARMS
O N B ATTERY
When the UPS is operating on the batteries, the On-Line LED will blink and the audible alarm
will sound every 10 seconds. The alarm will stop once the UPS returns to On-Line operation.
U PS F AULT
When the UPS detects a hardware fault, the Fault LED will illuminate and the UPS will emit a
sustained tone. The fault condition can be reset by turning the UPS OFF and then ON. (see
section 5 Troubleshooting)
O VERLOAD
When the amount of load attached to the UPS exceeds its power rating, the Overload LED
will illuminate and the UPS will emit a sustained tone. This alarm will remain on until the
excess load is removed or the UPS’s self protection circuit shuts the UPS down.
R EPLACE B ATTERY
The UPS automatically tests the battery’s condition and will illuminate the Weak/Bad Battery
LED and emit a short beep. This tone will be repeated every hour until the batteries passes a
self test. It is recommended that the UPS be allowed to charge overnight before performing a
battery test to confirm a Weak/Bad Battery condition.
L
OW B ATTERY W ARNING
The UPS will emit two consecutive beeps every five seconds when the battery reserve
runs low. This continues until AC returns or the UPS shuts down from battery exhaustion.
DIP SWITCH SETTINGS
The DIP Switch setting may be changed by the user to set the desired inverter (on battery)
output voltage. The DIP Switch must be set to the desired output voltage and then the unit
must be turned OFF and restarted to reconfigure the microprocessor and save the change.
The setting for the 117Vac units may be 108Vac, 113Vac, or 117Vac. This setting will
adjust the inverter (on battery) output voltage only. The setting for the 225Vac units maybe
215Vac, 225Vac, and 235Vac. All 208Vac applications should be set on 215Vac setting.
Switch #1 Switch #2 Output Voltage in battery mode
OFF OFF 108Vac (215Vac)
OFF ON 108Vac (215Vac)
ON OFF 113Vac (225Vac)
ON ON 117Vac (235Vac)
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