Verilink Red Zone Encryption (REMS) (880-502423-001) Product Manual - Manual (Page 78)

Troubleshooting
8-2 Red Zone Encryption Management System (REMS) User Manual
Basic troubleshooting
In normal operating mode, all LEDs on the front panels should be green.
Flashing green LEDs on the FBR DIU front panel indicate the receipt of
BRC performance monitoring messages from the BRC to the FBR. (See
Chapter 6, Configuring and starting REMS.)
1. If the system does not appear operational, start troubleshooting with
the EQ LED on the FBR front panel. This LED must be green before
any other part of the system can come up. A green EQ LED indicates
that the EQ input of the FBR is receiving a good D4/ESF signal.
2. Next, verify that the encryptor and the BRC are properly connected.
If the EQ LED is red, an LOS condition exists. This condition must
be rectified before proceeding further. Recheck the setups described
in Chapter 5, Connecting REMS components.
3. At the encryptor, verify the clock and data phase relationship. If the
Clock does not have the proper phase relationship to the data from
the FBR, correct the phase relationship by optioning the “phase
select” strap in the encryptor.
Encryptor re-sync connections are usually made to the Relay Alarm
contacts on the back of the FBR. (Use the COM and NC terminals.)
See Chapter 5, Connecting REMS components.
4. Verify that the signal from the network to the BRC input is good. The
NET LED should be green.