Product specifications

Section 5 Maintenance MOD5 Interface - CI872
3BSE036351-510 A 233
F(ault) LED is ON Possible Cause 1: The CI872 module is in the process of
upgrading the firmware (if the upgrade is in progress).
Corrective Action 1: Wait for the firmware to be upgraded.
Possible Cause 2: Fault in the CI872 module.
Corrective Action 2: Hot remove and hot insert the CI872
module.
Corrective Action 3: If the indication persists after
performing the corrective actions 1 and 2, then replace the
CI872 module.
R(un) LED is ON The green R(un) LED indicates that CI872 is operational.
Rx/Tx1, Rx/Tx2, and
Rx/Tx3 LEDs are flashing
There is one LED corresponding to each port on the CI872
module. When the LED corresponding to a port flashes, it
indicates that communication is happening on that particular
port.
Rx/Tx1, Rx/Tx2, Rx/Tx3
LED is OFF
Possible Cause 1: The fiber optic cable is not connected or
it is not connected properly to the port.
Corrective action 1: Do any of the following:
• Check the corresponding optical cable connections,
that is, the connections for reversed transmitter and
receiver optical cables for that particular port, and the
connections on the DOW MOD5 controller.
• Check the Network Controller Board (NCB) on the
MOD5 Controller connected to that particular port.
Possible Cause 2: The configuration is not downloaded
from the Hardware Tree (in the Control Builder) to the
controller.
Corrective Action 2: Ensure that the module is configured
in the Hardware Tree for the correct position and the
configuration is downloaded to controller.
Table 46. MOD5 Communication Interface, Type CI872 - Indications and Fault Finding (Continued)
Indication Possible Causes, and Corrective Actions (for faults)