Power/Alarm Connector; Power Supply Inputs; P-Fail Alarm Relay Contacts; Figure 7: Is Series Power/Alarm Connectors - Allied Telesis AT-IS230-10GP Installation Manual

Chapter 1: Overview

Power/Alarm Connector

Power Supply
Inputs
P-Fail Alarm
Relay Contacts
38
The power/alarm connector provides pins for two power supplies and
a pair of alarm relay contacts. Refer to Figure 7.
AT-IS230-10GP
Figure 7. IS Series Power/Alarm Connectors
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 that
one of the DC power units fails or loses power.
The switches support the following types of power sources:
AC/DC rectifiers

Un-interruptible power supplies

The power supply requirements for both the AT-IS230-10GP and
AT-IS130-6GP models are described in "Power Supplies" on page 45.
Allied Telesis does not sell or provide power supplies for these product.
You can specify the type of Alarm policy that will activate the P-Fail alarm
relay contacts when the fault is detected. The AT-IS130-6GP switch alarm
indicates a power supply failure. Within the AT-IS230-10GP switch
management software, the alarm type is configurable and detected.
Examples of alarm conditions in the AT-IS230-10GP are power supply
failures, fiber alarms, and port alarms.
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
AT-IS130-6GP