GE 90-30 PLC Series Installation And Hardware Manual page 208

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Four LEDs are located at the top of the board. The Restart pushbutton is located immediately
below the LEDs. The RS-232 serial port with the RJ-11 connector is the Station Manager port.
The RS-485 serial port with the 15-pin D connector located below the Station Manager port is the
module's Downloader port. The 14-pin AAUI connector, facing downward, is the Transceiver
port. The Default MAC Address label is attached to the outside of the plastic housing.
Board Indicators
There are four LEDs on the Ethernet Interface: OK, LAN, SER, and STAT. These LEDs can be
ON, OFF, BLINKING slow, or BLINKING fast. They indicate the state the Interface is in, traffic
on the Transceiver port and Downloader port, and when an exception event has occurred.
Restart Button
The Restart button serves four functions: LED test, Restart, Restart and Reload, and Restart and
Enter Maintenance Utility. The Restart button is inaccessible when the front cover of the Ethernet
Interface is closed.
Serial Ports
There are two serial ports on the Ethernet Interface: the Station Manager Port and the Downloader
Port.
The Station Manager Port. This RS-232 port is used to connect a terminal or terminal emulator
to access the Station Manager software on the Ethernet Interface. This port uses a 6-pin, RJ-11
connector. The IC693CBL316 Station Manager cable is ideal for connecting to this port (see
Chapter 10 for details).
The Firmware Upgrade Port. The 15-pin, D-type, RS-485 port is used to connect to the PC
Downloader in case the communications software in the Ethernet Interface needs to be updated.
Use the IC690ACC901 miniconverter/cable kit for this connection (see Appendix E for details).
AAUI (Transceiver) Port
The 14-pin AAUI port connects to an external Ethernet-compatible transceiver via an IEEE 802.3
transceiver cable. GE catalog number IC649AEA102 (for 10Base T) or IC649AEA103 (for
10Base2) are suitable transceivers (see Appendix J for details).
Default MAC Address Label
The Default MAC Address label lists the Ethernet MAC address to be used by this module.
Serial Number Label
The Serial Number Label indicates the serial number of this Interface.
Ethernet Interface Module Documentation
For details, refer to GFK-1541, Series 90-30 TCP/IP Ethernet Communications User's Manual.
8-30 Series 90-30 PLC Installation and Hardware Manual – August 2002 GFK-0356Q