Allied Telesis IE048-480, Installation Manual

Page: 25 / 72

IE048-480 Power Supply Installation Guide
25
Remote Control Connector for Turning On or Off the DC Output
Connectors
On top of the power supply are the Remote Control (RC) connectors. You
can use the connectors to remotely turn on or off the DC output
connectors, and so remotely power off the devices that are connected to
the power supply. You might use this feature when the devices are
experiencing technical problems or under network attack, or if the power
supply itself is experiencing a problem. Once a network problem is
resolved, you can use the Remote Control connector to remotely power on
the DC output connectors and devices again.
Warning
Depending on the types of devices connected to the power supply,
powering off the DC output connectors may disrupt network
operations.
 E131
Here are the guidelines to using the RC connector:

The default setting for the DC output connectors is on.

All four positive and negative DC output connectors on the power
supply are turned on or off together. You cannot control them
separately.

The restart time of the power supply is 750 ms, maximum.

Using the RC connector is optional.
The specifications for the Remote Control circuit are provided in Table 3.
The circuit is an on or off dry contact relay. The circuit is open when there
is no voltage, which turns on the DC output. The circuit default is open.
Placing a voltage in the range of 4.5 to 29.5V on the circuit closes it,
turning off the DC output connectors.
Table 3. Specifications of the Remote Control Circuit
RC Voltage
Circuit
Status
Status of DC Output
Connectors
0 to 0.5V (Low level) or
open Open On (default)
4.5 to 29.5V, 20mA
maximum (High level) Closed Off