NEC 2400 ipx User Manual Page 353

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NDA-24296 CHAPTER 3
Page 327
Revision 1.0
PA-16LCBJ-B
Line Circuit
3. Face Layout of Lamps, Switches, and Connectors
The face layout of lamps and switches on this circuit card is shown in Figure 3-75.
Figure 3-75 Face Layout of PA-16LCBJ-B (16LC)
4. Lamp Indications
The contents of lamp indications of this circuit card are shown in the table below.
LAMP
NAME
COLOR STATE MEANING
OPE Green Steady Lighting The circuitry of the circuit card is operating normally.
BL0
BL15
Green
Steady Lighting Line loop exists.
Flashing
1)Ringing signal is being transmitted. Busy LED keeps flashing in syn-
chronizing with on/off of the ringing signal.
2)Dial pulses are being received. While dial pulses from a line are be-
ing received, Busy LED keeps flashing in synchronizing with the dial
pulses coming from the line.
3)Line is in make-busy state.
Busy LED keeps flashing at 60 ipm.
OPE
MB
BL15
SW10
14
13
12
3
2
1
0
11
10
9
8
7
6
5
4
SW11
SW13
SW15
SW16
~
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