Advantech SNMP-1000-B1, Руководство пользователя

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2.2.7 RS-232 Interface (CN8 & CN9)
The serial port can be used as a console port or connected to an external
modem for phone line connection. CN9 is a standard DB-9 port for exter-
nal wiring; CN8 is a box header for internal wiring.
2.2.8 LCM Message Display Connector (CN10)
An optional LCM message display module is available for message dis-
play. The input key on the LCM module can be used for on-site setup.
CN10 is the interface to the LCM module.
2.2.9 Kernel Board Connectors (CN11 & CN12)
CN11 & CN12 are used to piggyback the kernel module.
2.2.10 Backplane Voltage Input Connector (CN13)
This connector is used in detecting the voltages on the backplane. An 8-
pin connector on Advantech's backplane can be cabled to CN13 directly
to simplify the wiring.
2.2.11 Digital Input Connectors (DI1~DI8)
Up to 8 TTL-level digital signals can be monitored by SNMP-1000-B1.
You can use these digital inputs to detect external devices or other healthy
status such as chassis intrusion.
This connector is not available on the carrier board for chassis.
2.2.12 Digital Output Connectors (DO1~DO4)
Four digital output signals can be triggered by any of the alarm event
independently. They can be used to control external devices to recover
the system health or notify users about the alarm. This connector is not
available on the carrier board for chassis.
Notice: A special "null modem" cable is required to con-
nect its serial port to a PC's serial port. Please
make sure that the cable has reversed Tx & Rx
signals at one end, and only pin 2, 3, & 5 are
connected. This cable is available from Advan-
tech. (Part number: 1700091801). If other pins
are connected, the SNMP-1000-B1 will detect
your RS-232 connection as a modem so it will
stop immediately.