CHAPTER 3 NDA-24296
Page 334
Revision 1.0
PA-16LCBW
Line Circuit
PA-16LCBW
Line Circuit
1. General Function
The PA-16LCBW circuit card provides an interface between a maximum of 16 analog voice terminals and
the system with a range of 1200 inclusive of terminal resistance. This card also can send “Stutter Dial
Tone”, which is not a continuous tone, to an associated terminal which has no Message Waiting Lamp
(MWL) instead of activating the MWL if required. In addition momentary open/reverse battery function is
provided for 16 channels on this card. This is a -48V card.
Figure 3-78 Location of PA-16LCBW (LC) within the System
max. 1200 [Ω]
COT
INT SW
GT
I/O Local Bus
(PA-16LCBW)
C. O. line
Loop Resistance: Max. 1200 [Ω] (inclusive of
terminal Resistance)
Open Function: x 15 circuits
Reverse / Open Function: x 1 circuit (selectable)
Stutter Dial Tone/Message Waiting Lamp (selectable)
Encoding Law: µ-law
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PUBLIC
NETWORK
Analog Terminal
CPU
LC