CTC Union ET100/NRZ, User Manual

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ET100/NRZ LAN-WAN Bridge
„
LED Indicators
PWR Green ON Power ON
OFF Power OFF
TD Green ON NRZ transmit data is mark “1”
OFF NRZ transmit data is space “0”
Flash NRZ transmit data is changed
RD Green ON NRZ receive data is mark “1”
OFF NRZ receive data is space “0”
Flash NRZ receive data is changed
LINK Green ON Ethernet link
OFF Ethernet unlink
Receive Green OFF No LAN receive event
ON LAN receive event
Transmit Green OFF No LAN transmit event
ON LAN transmit event
100M Green OFF 10Base-T
ON 100Base-TX
Full Green OFF Half duplex
ON Full duplex
Error Red OFF No LAN error event
ON LAN error event
Test Red OFF No loop back
ON Loop back enable
„
Loop back
When the Loop back push-button switch is depressed, Received timing and data are looped back out the Transmit
timing and data interfaces.
NRZ
TX Data
RX Data
TX Timing
RX Timing
Figure 1. ET100/NRZ Loop back paths
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