User manual

SNMP-1000-B2 User Manual 8
Figure 2.4 Carrier board connectors
2.2.1 External Buzzer Connector (J1)
Supports connection to an external buzzer.
2.2.2 Bypass Password Protection (MJ1)
Restores the default alarm board ID and password.
2.2.3 External Power Connector (CN1)
This connector is used to provide auxiliary power to SNMP-1000-B2. This connector
is only required when an extension board is not plugged into the PCI or ISA slots.
2.2.4 System SMBus Connector (CN3)
Enables users to read system SMBus signals.
2.2.5 10/100Base-T LAN Connectors (CN2 and CN5)
CN5 is a standard RJ-45 connector for Ethernet connectivity. A box header (CN2) is
also available for internal connectivity.
The chassis carrier board is equipped with a special cable (P/N 1703120900) that
features a box header at one end and an RJ-45 at the other end. An adaptor bracket
allows users to fix the RJ-45 end to the chassis via an existing DB-9 COM port.
2.2.6 Temperature Sensor Connectors (CN4 and CN7)
These connectors interface with LM75 digital temperature sensors via SM bus.
SNMP-1000-B2 supports monitoring of up to nine temperatures. One sensor located
on the kernel module is designated as Temp. 0, and up to eight external sensors can
be connected. External temperature sensors and cables are available from Advan-
tech. Sensors can be connected in series in any order to either connectors, but each
sensor must be allocated a unique ID ranging from 1 ~ 8 using the DIP switch on the
sensor board.