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RAD Data comm HCD-E1 User Manual

Page 202

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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.