Version 6.6
17
April 2012
Hardware Installation Manual
3. Physical Description
3.1.5
CPU Module
The CPU module is the central processing unit that provides various port interfaces.
3.1.5.1 Port Description
The CPU module provides various port interfaces, as shown in the figure below and
described in the subsequent table.
Figure
3-6: CPU Module
Table
3-6: CPU Module Port Description
Item #
Label
Component Description
1
I
Dry contact port (normally open), This port can be connected to an
external audible or visual alarm system (e.g., bell, siren, hooter, or
light).
2
II
Dry contact port (normally closed). This can be connected to an
external audible or visual alarm system (bell, siren, hooter, or light).
3
♫
Audio IN/OUT.
Note:
This functionality will be supported in the next applicable
release.
4
I
10/100Base-TX Ethernet port.
5
II
10/100Base-TX Ethernet port.
Note:
Two Ethernet ports provide Ethernet redundancy, protecting
against failure such as a disconnection of any cable or associated
LAN switch port.
6
IOIO
RS-232 port for accessing the CLI and for receiving error/notification
messages. A 9-pin DB adapting cable is supplied.
7
//
Reset pinhole button for resetting the device or restoring the device
to factory defaults (for more information, refer to the
User's Manual
).