Checking out and troubleshooting your DeltaV SIS hardware

SISNet Distance Extender LEDs

Table: SISNet Distance Extender LEDs

LED

Correct Operating Condition

Fault Indicators

Probable Cause

Corrective Action

PWR

On

Off

Power is not supplied to unit.

Provide power to unit.

SM

On

Off

No single mode carrier detected.

Restore connection to predecessor SISNet Distance Extender's single mode TxD.

MM

On

Off

No multimode carrier detected.

Restore connection to predecessor SISNet Repeater's multimode TxD.