Auto-Zone Control Systems CommLink IV Technical Guide, Installation Instructions for the CommLink IV Communications Interface (Version 01E) - Manual (Page 14)

CommLink IV Technical Guide
14 Operator Interface
CommLink IV LED Descriptions
Figure 3: CommLink IV LED Display
STATUS
RX-USB TX-USB LOOP TX-CPU RX-CPU ACT
-LAN
LNK-LAN
C O N T R O L S
CommLink IV
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CommLink IV LED Descriptions
LOOP - Indicates communication activity on local controller
network. This LED fl ickers when data is exchanged
with the controller network.
TX-USB - Indicates transmitted data status of USB
connection. This LED only fl ashes when your
CommLink is connected to a computer and data is sent
to Prism from the CommLink via USB.
RX-USB - Indicates received data status of USB connection.This
LED only fl ashes when your CommLink is connected to a com-
puter and data is sent from Prism to the CommLink via USB.
TX-CPU - Indicates transmitted data status. This LED only fl ashes
when your CommLink is connected to a computer and data is sent
to Prism from the CommLink using USB or Ethernet.
RX-CPU - Indicates received data status. This LED only fl ashes
when your CommLink is connected to a computer and data is sent
from Prism to the CommLink using USB or Ethernet.
ACT-LAN - Indicates activity on the local area network. This LED
fl ashes on when LAN is transmitting and receiving data and is
only operational when the IP Module Kit is installed.
LNK-LAN - Indicates local area network is connected. This LED is
on when connected to LAN and is only operational when the IP
Module Kit is installed.