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Power/Alarm Connector
Power Supplies
P-Fail Alarm
Relay Contacts
The power/alarm connector provides pins for two power supplies and a
pair of alarm relay contacts.
The PWR 1 and PWR 2 connector is for the DC power supplies. You can
power the unit with one power supply or two power supplies for power
redundancy, which protects the device from power loss in the event a DC
power unit fails or loses power.
The switches support the following types of power sources:
AC/DC rectifiers
Un-interruptible power supplies
The power supply requirements are described in "Power Supplies" on
page 39.
Allied Telesis does not sell or provide power supplies for this product.
Note
This product is intended to be supplied by a UL61010 OR
UL61010-2-201 and 60950-1 or 62368-1 Listed DC power source,
rated 24-48Vdc, 7A minimum and Tma 75 degree C. If you need
further assistance, please contact Allied Telesis for further
information.
Le commutateur doit etre homologuee selon les normes UL61010
ou UL61010-2-201 et UL 60950-1 ou UL62368-1 et alimentes par un
courant de sortie de 24-48Vdc, 7A minimum, et temperature
ambiante maximale (Tma) 75 degres.
The power/alarm connector on the top panel of the switch includes two
pins for the P-Fail alarm relay contacts. You may connect these contact
connections to an external alert device. The switch can use the device to
alert you to alarm conditions, such as power supply failures or ports
without links. Here are two examples of alert devices:
LEDs
Buzzers
The switch does not supply power on the P-Fail alarm relay contacts,
which only provide an ON/OFF signal via a dry contact relay. When an
alarm occurs, the switch changes the circuit from open (off) to closed (on).
The circuit remains closed until the alarm is resolved, at which point the
switch automatically opens it again. The processes to resolving alarms
can vary.
IS230-10GP Industrial Ethernet Layer 2 Switch Installation Guide
33
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