Asus MEB - Manual (Page 30)

30 ASUS MEB User’s Manual
17. Chassis Intrusion Sensor Lead (4-1 pin CHASIS)
This lead is for a chassis intrusion monitor or sensor. The sensor is triggered
when a high level signal is sent to the “chassis signal” lead. This occurs when a
panel switch or light detector is triggered. This function requires an optional
trigger switch, such as the ASUS CIDB Chassis Intrusion Photo Sensor Module
(See APPENDIX) and/or a chassis mounted toggle switch, to be installed.
MEB Chassis Open Alarm Lead
+5VSB Chassis Signal Ground
01 01 01
18. SMBus Connector (5-1 pin SMB)
This connector allows you to connect SMBus devices. SMBus devices commu-
nicate by means of the SMBus with an SMBus host and/or other SMBus de-
vices. The SMBus or System Management Bus is a specific implementation of
an I
2 C bus, which is a multi-master bus, that is, multiple chips can be connected
to the same bus and each one can act as a master by initiating data transfer.
SMBCLK Ground SMBDA
T
A
+5V
1
MEB SMBus Connector
01 01 01
III. HARDWARE SETUP
Connectors
III. H/W SETUP