Left Interface (Lif) - Nortel NTRN10AN Planning Manual

3-38 Hardware feature descriptions
Figure 3-21
Left OAM (LOAM) (NTN451MA, NTN451MH)

Left interface (LIF)

(NTN451BA, NTN451BH)
The LIF is inserted in slot 1a and provides a connection for the LOAM. The
LIF also provides the inventory connection for the power modules.
See
See
of the LIF LEDs.
LED Description
Power Shelf is receiving power when the LED is lit.
Critical A Critical alarm condition exists for one of the circuit packs on the shelf.
Major A Major alarm condition exists for one of the circuit packs on the shelf.
Minor A Minor alarm condition exists for one of the circuit packs on the shelf.
Remote An alarm condition exists on one of the other network elements in the system.
ACO The ACO button has been pressed and an audible alarm can be suppressed. This
LED is also used for the Lamp Test.
OPTera Metro 3500 Multiservice Platform
Table 3-3 on page 3-6
Figure 3-22 for the details of the LIF. The following table provides a list
NTRN10AN
Cable stress relief
Hinged screw
Unit mount screw
RS-232
LOAM I/O pins
COLAN
ILAN 1
ILAN 2
Fan alarms
Hinged screw
Unit mount screw
for operational temperature ranges.
Rel 12.1 Standard Iss 1 Apr 2004
EX0790p