CHAPTER 3 NDA-24296
Page 244
Revision 1.0
PA-8COTBJ
Central Office Trunk

PA-8COTBJ

Central Office Trunk

1. General Function
The PA -8COTBJ (8COT) circuit car d provides a n interface between a maximum of 8C.O. lines and the
syste m. And this card also provides the call er ID service. Depending upon keys sett ing of this card, the fir st
circui t on t h i s card can b e u sed as an i nt er face for Paging Equipment. In this instance, the second circuit is
also us ed for the purpose of activating the Paging Equ ipment. Example of the Paging Equipment and Caller
ID service are illustrated below. In addition, the appropriate v alue of Terminal Impedance an d Balancing
Netw o rk (BN W ) can be selected b y k e y set ting.
Figure 3-38 Location of PA-8COTBJ (8CO T) Card within the System
2. Mounting Location/C ondition
The PA-8COTBJ (8COT) card can be mounted in any universal slot as show n bel ow.
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
This d i ag ram sh ows an ex ample wh ere thi s card i s u s ed as b o t h a PGT an d COTs.
Terminal
INT
"555-1234"
Attendant
Console
ATI
SW INT
COT
circuit 1
circuit 2
circuit 7
circuit 8
PA-8COTBJ MDF
Speech Line
Cont rol Li ne
G
"555-1234"
PAGING
EQUIPMENT
To Battery
PUBLIC
NETWORK
"555-1234"
Terminal
Loca l I/O Bu s
MODEM
GT
CPU
MODEM
COT
PGT
PGT
PIM
Mounting Module