Attero Tech Box 4 I/OP - Manual (Page 20)

VoiceBox 4 I/OP
User Manual
 Attero Tech LLC 2010 Page 16 614-00008-02
4 – Troubleshooting
4.1 – Checking the Network Connection
The CobraNet network connection can be diagnosed by noting the status of the LEDs just above the Ethernet connector on
the VoiceBox. These LEDs will be on, off, or flashing depending on the current state of the network connection. Below is a
table showing the states of the LEDs and what device status they represent.
LED status Device Status
Left LED on permanently
Right LED off
No Ethernet Connection
Left LED on permanently
Right LED on but flashes off every 4 seconds
Ethernet connected but no devices found
Left LED on permanently
Right LED flashing 3 times a second Connected and CobraNet devices found
Device is a performer
Left LED on flashing 3 times a second
Right LED flashing 3 times a second Connected and CobraNet devices found
Device is the conductor
Table 1 - CobraNet Interface LED Status
4.2 – Common Faults
Below are some common faults. Accompanying each one is a list of the most common solutions. While the lists of solutions
are not exhaustive, they represent the majority of the likely failures.
The VoiceBox does not show up in Control Center.
o If using PoE, check the VoiceBox is attached to a PoE-enabled port on a switch or the output port on a midspan
injector and the power light on the switch/injector is on.
o If using the optional wall wart, Check power is supplied and the power light is on.
o Ensure the PC is running Windows 98SE or later (Windows 95 is not suitable).
o If running Vista, ensure a Vista compatible version of Control Center is running (1.1.0 onwards).
o Check the Ethernet cable is correctly connected.
o If connected to a switch ensure the link indicator is lit and activity flashes at least occasionally. If not, ensure the
correct type of cable is used for the switch. Some switches require standard patch cables. Others can use
standard or crossover cables.
o If connected directly to a PC, ensure the Ethernet cable is a crossover type.