NDA-24296 CHAPTER 3
Page 303
Revision 1.0
PA-16LCBE
Line Circuit
PA-16LCBE
Line Circuit
1. General Function
This circuit card provides the interface for 16 station lines. This circuit card is provided with functions for
supervising each user's call origination, call answering, release, detection of switch hook flashing, relaying
of DP/PB signals, transmission of ringing signals to the called side, and bothway transmissions of voice
band signals. For use of this circuit card, there are the following limitations.
(a) There are four kinds of balancing network, each of which is set up according to the line conditions
involved.
(b) PAD is only for receiving side 5 dB (at the time of station to station call).
Figure 3-66 Location of PA-16LCBE (16LC) Card in the System
TSW
16LC
COT
(MAX. 16 Stations)
C.O. Line