User Manual

Troubleshooting68P09255A57-2

Aug 2002

SC4812ET Optimization/ATP Manual Software Release R16.1.x.x

PRELIMINARY

6-21

BBX LED Status Combinations

PWR/ALM LED

The BBX module has its own alarm (fault) detection circuitry that

controls the state of the PWR/ALM LED.

The following list describes the states of the bi-color LED:

 Solid GREEN - INS_ACT no alarm

 Solid RED Red - initializing or power-up alarm

 Slowly Flashing GREEN - OOS_ROM no alarm

 Long RED/Short GREEN - OOS_ROM alarm

 Rapidly Flashing GREEN - OOS_RAM no alarm

 Short RED/Short GREEN - OOS_RAM alarm

 Long GREEN/Short RED - INS_ACT alarm

MCC LED Status Combinations

The MCC module has LED indicators and connectors as described

below. See Figure 6-3. Note that the figure does not show the connectors

as they are concealed by the removable lens.

The LED indicators and their states are as follows:

PWR/ALM LED

 RED - fault on module

ACTIVE LED

 Off - module is inactive, off-line, or not processing traffic.

 Slowly Flashing GREEN - OOS_ROM no alarm.

 Rapidly Flashing Green - OOS_RAM no alarm.

 Solid GREEN - module is INS_ACT, on-line, processing traffic.

PWR/ALM and ACTIVE LEDs

 Solid RED - module is powered but is in reset or the BCP is inactive.

MMI Connectors

 The RS-232 MMI port connector (four-pin) is intended to be used

primarily in the development or factory environment but may be used

in the field for debugging purposes.

 The RJ-11 ethernet port connector (eight-pin) is intended to be used

primarily in the development environment but may be used in the field

for high data rate debugging purposes.