Hardware reference guide

35013379 11/2011 215
Specifications
The following table shows the InterBus specifications.
LED Indicators and Descriptions for NOA611X0
The following figure shows the NOA611X0 LED indicators.
The following table shows the NOA611X0 LED descriptions.
Specifications
Data Interface
InterBus RS-485, isolated (500 V test voltage)
RS-232C maximum cable length As per DIN 66 020, non-isolated 20 m shielded
Data Transfer Frequency 500 kbaud
Connection Styles Interbus
RS-232C (Use cable part number 990NAA26320 or
990NAA26350)
Bus Current Required 700 mA
Power Dissipation Max. 3.7 W, typically 2.5 W
Installation Local backplane only
LED Descriptions
LEDs Color Function
R Green Ready. The firmware is running correctly and the module is ready
for service.
Active Green Bus communication is active.
F Red Fault. A fault occurred on the module.
IB-S Run Green The InterBus is functioning normally and carrying data.
BS Off Yellow One or more bus segments are shut down.