Bosch B426 - LED Indicators and Troubleshooting; LED Status Descriptions

30 en | Maintenance and troubleshooting LEDs Conettix Ethernet Communication Module
2016.08 | 08 | F.01U.266.226 Installation and Operation Guide Bosch Security Systems, Inc.
6 Maintenance and troubleshooting LEDs
The B426 includes the following on-board LEDs to assist with troubleshooting:
– Heartbeat (system status).
– RX (receive).
– TX (transmit).
Refer to B426 module overview, page 8 for Ethernet link LED locations.
Flash pattern Function
Flashes once every 1 sec
Normal state. Indicates normal operation state.
3 quick flashes every 1 sec
Communication error state. Indicates a bus communication
error. The module is not receiving commands from the
control panel.
On Steady
Trouble state. Indicates a trouble condition exists.
Off
LED trouble state. Module is not powered, or some other
trouble condition prohibits the module from controlling the
heartbeat LED.
Tab.6.2: Heartbeat LED descriptions
Flash pattern Function
RX (Receive) Flashing
Occurs when the module receives a message over the
network connection – UPD, TCP, or DNS.
TX (Transmit) Flashing
Occurs when the module sends a message over the
network connection – UPD, TCP, or DNS.
Tab.6.3: RX and TX LEDs descriptions
LINK (yellow) LED pattern 100Mb (green) LED pattern Function
Off Off
No Ethernet link
On Steady
Off
10Base-T link
Flashing
Off
10Base-T activity