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Appendix A Ethernet Interface ASM-20 Installation and Operation Manual
A-4 Installation and Operation
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Figure A-6 Ethernet Bridge Layout (BNC option)
LAN Installation
For 10BaseT installation, either a straight cable or a cross-cable may be required.
Use a cross-cable when connecting to a port that does not implement the
crossover function internally. Otherwise, use a straight cable. (Hubs usually
implement the crossover function internally while NICs and other devices do not.)
Switch Settings
Set switches according to Table A-2.
Table A-2 DIP Switches Settings
Switch
Number
Name Description*
1 SQ/FD ON: Ethernet full-duplex mode
OFF: Ethernet half-duplex mode
2 CMP ON: Strips padding bits inserted in 64-byte frame
OFF: Transmits frames over WAN as is
3 FIL ON: Passes only frames destined for another LAN
OFF: Disables LAN filter; passes all frames transparently
4
(nc)
* Default settings are shown in bold.
The SQ/FD switch is not used in the Ethernet bridge with the BNC connector
option.
LED Indicators
Table A-3 lists the IR-ETH LED indicators and describes their functions.
Note