Agilent Technologies J3972A - Manual (Page 91)

Installation
Verifying the Installation
71
OC-3 ATM Troubleshooting
There should be a cable connected to both connectors.
Both Activity LEDs (from network and from equipment) should turn on when
there are cells present on the network and the Cell Sync LED should be off.
If both the Cell Sync LED and the Activity LED are turned on, the ATMProbe is
sensing traffic on the network but is not able to synchronize on the cell stream.
Verify the configuration of the probe’s OC-3 interface as described in See “OC-3
ATM Interface Configuration” on page 33.
If the Cell Sync LED is turned on and the activity LED is turned off, and you
know that there is data on the network, try switching the connectors as they are
attached to the ATMProbe. Each connector has a specific purpose. If the cables
are attached to the wrong connectors, the probe will not receive data.