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Appendix D - IR-ETH/Q Interface Module HCD-E1
Installation & Operation Manual
D-4 Installation and Operation
Setting the DIP
Switch
Configure the IR-ETH/Q module by setting the DIP switch in accordance
with Table D-2. The DIP switch is located on the reverse side of the
IR-ETH/Q module. To change the switch settings, you must undo three
screws on the board and detach it from the main unit.
Table D-2 DIP Switch Settings
Switch
Number
Name Description Default
Setting
5 FD/HD ON: Full-duplex mode
OFF: Half-duplex mode OFF
Note: IR-ETH/Q does not support auto detection. Therefore, the equipment connected to IR-ETH/Q
should not be set to auto detection mode and the half/full duplex setting should be set manually.
6 TRANS/FIL OFF: Passes only frames destined for another LAN
ON: Disables LAN filter; passes all frames transparently
OFF
Note
For proper operation switch 4 must always be set to OFF (factory setting).
LED Indicators
Table D-3 lists the IR-ETH/Q rear-panel LED indicators and describes their
functions.
Table D-3 DIP Switch Settings
LED Name Description Color
INT ON indicates good link integrity Green
ERR ON indicates LAN/WAN buffer overflow Red
ACT ON when data is received from the Ethernet
attached segment or when data is transmitted
from the modem to the Ethernet segment
Yellow
Note: In filtered mode, IR-ETH/Q passes frames destined only for another LAN
Connecting the
LAN
Use either a straight cable or a cross-cable for the LAN connection.
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.