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Chapter 2: Hardware Installation and Network Configuration
13
Reinitializing and Resetting the Hub
The information in this section is not a standard part of the startup sequence; however, it is
provided for reference if the ESP serial hub must be reinitialized or reset.
Reinitializing
The INIT
button on the front of the hub may be used to remove configured information from an
ESP hub. The hub stores nonvolatile data such as the SNMP community name, admin password,
system contact and IP address in memory. This information is erased by pressing and holding the
INIT
button until reinitialization occurs.
When the INIT button is first pressed, the
ONLINE
LED will begin to blink to confirm that you
have pressed the INIT
button. As the INIT
button remains pressed, the
ONLINE
LED will blink at a
faster rate. After approximately 12 seconds, the
ONLINE
LED will turn off. At this point, all
nonvolatile information will be reset to the factory defaults and the hub will immediately reboot.
You may also reinitialize the hub using the web interface (see
Reinitializing the Hub
on page 41) or
the configuration utility (see
Reinitializing the Hub
on page 51).
Resetting
The RESET
button on the front of the hub may be used to reset the serial hub.
•
On ESP-2 MI and ESP-4 MI hubs, pressing this button will cause an immediate reboot.
•
On ESP-8 MI and ESP-16 MI hubs, pressing and holding this button for approximately one
second will cause an immediate reboot if the master application is running. If the master appli-
cation is not able to run (that is, only the bootloader is operational), pressing the RESET button
will have no effect. However, if this condition persists for more than 15 seconds, the watchdog
timer will cause the hub to reset.
You may also reset (reboot) the hub using the web interface (see
Rebooting the Hub
on page 41) or
the configuration utility (see
Rebooting the Hub
on page 51).
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