Vizio CPU-56 - Manual (Page 13)

4.The
Example
o
f
connection
o
f
3
EX-520
exchanges
(YR-801
most
b
e
connected
t
o
J1
5
f
o
r
EX-520
exchange
o
r
t
o
J
7
f
o
r
EX-510
exchange)
Terminal
board
BOX-064X2
Terminal
board
BOX-064X2
YR-801:Junction
cable
YR—801
f
o
r
stations
Exchange
C
YR-801
f
o
r
tie-line
Exchange
C
BOX-064
J
7
The cables between
Exchange
B
BOX-064
J
7
YR-801
for
stations
Exchange
B
YR-801
f
o
r
stations
YR-801
for
tie-line
Exchange
A
BOX-064
J7
Excha nge
A
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