ASMi-31 Installation and Operation Manual Appendix A. Ethernet Interface
Installation and Operation A-5
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.
Note
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 Default
Setting
1 SQ/FD ON: Ethernet full-duplex mode
OFF: Ethernet half-duplex mode
OFF
2 CMP ON: Strips padding bits inserted in 64-byte frame
OFF: Transmits frames over WAN as is
ON
3 FIL ON: Passes only frames destined for another LAN
OFF: Disables LAN filter; passes all frames transparently
ON
4(nc) OFF
Note
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.
Table A-3 IR-ETH Bridge LED Indicators
LED Name Description Location Color
LINK ON indicates good link integrity (available only in
the 10BaseT version)
Panel Green
COLL ON indicates collision on the attached Ethernet
segment
Panel Yellow
RX ON when data is received from the Ethernet
attached segment
Panel Yellow
TX ON when data is transmitted from the modem to
the Ethernet segment
Panel Yellow
ERR D4 Bridge buffer overrun On board Red
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