10
Product Overview
Cable Side
Figure 4 Power-Input Terminal
Alarm Ports
The switch has four alarm inputs and one alarm output. The alarm setting is open or closed.
Open means that the normal condition has current flowing through the contact (referred to as a normally closed
contact). The alarm is generated when the current stops.
Closed means that no current flows through the contact (referred to as a normally open contact). The alarm is
generated when the current flows.
Alarm Input
The alarm input is a dry-contact alarm port. You can connect up to four alarm inputs from devices, such as a door, a
temperature gauge, or a fire alarm, to the alarm port. You can use the CLI to set the alarm severity to minor, major, or
critical. An alarm generates a system message and turns on an LED. See the Alarm LEDs, page 12 for the LED
descriptions.
Alarm Output
The alarm output can be configured as a minor or major alarm. Output alarms often control an external alarm, such as a
bell or a light. To connect an external alarm device to the relay, you connect two relay contact wires to complete the
electrical circuit. See for information on the alarm pinouts. see the Alarm Port, page 73.
Management Ports
You can connect the switch to a PC running Microsoft Windows or to a terminal server through either the RJ-45 console
port or the USB console port.
RJ-45 console port. The RJ-45 connection uses an RJ-45-to-DB-9 female cable.
USB mini-Type B console port (5-pin connector). The USB connection uses a USB Type A-to-5-pin mini-Type B
cable.
The USB console interface speeds are the same as the RJ-45 console interface speeds.
To use the USB console port, you must install the Cisco Windows USB device driver on the device that is connected to
the USB console port (device running with Microsoft Windows).
Note: For information about downloading the Cisco USB device driver, see the Installing the Cisco Microsoft Windows
USB Device Drivers, page 84.
To Next Page
Loading...
Need help?
General