Description and Function of Components Nomenclature and Functions
3-10
Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
DS3 Line Card and E3 Line Card

Figure 3-8: Front View of DS3 and E3 Line Card

RCV/INS

Available for each line, these lamps indicate the status of that particular line.

Rx/Tx

These codes indicate the reception side and transmission si de of the BNC
connectors.
RCV (red) INS (green) Status
Off Lighted Line status normal
Lighted Off Line error (reception error)
Off Flashing Line error (transmission error)
Off Off Hardware error
Rx Reception side connector
Tx Transmission side connector