B&B Electronics Zlinx 485 - Manual (Page 9)

Hardware
Manual Documentation Number: Zlinx485m-1808
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Indicators, Connectors and Accessories
LED Indicators
Zlinx 485 Base modules have three LED indicators: a Power LED, a Data LED and a
Local Bus Data LED.
Expansion modules have two LED’s: a Power LED and a Local Bus Data LED
Power LED
The Power LED illuminates (red) immediately on power up indicating that DC power is
present on the power supply terminals.
Data LED
The Data LED blinks (green) when data is being transmitted or received, either to an
expansion module or another base module. When the LED is off no data is being
transmitted or received.
Bus LED
The Bus LED blinks (green) when data is being transmitted or received on the local bus
connection. When the LED is off no data is being transmitted or received.
Note: If communications is not established within a preset number of retries (default is 10) the Data
and Bus LED’s blink alternately to indicate a loss of communications.
Connectors
Zlinx 485 Base and Expansion modules feature connectors for connecting field I/O
wiring and plugging together Zlinx 485 modules (local bus). In addition, Zlinx 485 Base
modules include connectors for connecting a power supply and an RJ45 connecter to
connect to the PC using the supplied RJ45 to serial cable.