S T A
C O N N E C T O R A
P L U G
S I G N A L D E S G
PI N
4 0
LWT
A L 1
L B L
AL2
1 5
41
LRD TO STATION 2 7
L B K
B D -
1 6
AL1
4 2
2 7
S T A
AL2
T O I N T E R N A L E X T E N S I O N
1 7
2 8
AL1
S T A
A L 2
4 3
F R O M R G U
OUT
4 4
A
TO INTERNAL EXTENSION 29
19
2 9
T O R G U
AL1
S T A
A L 2
T O
E X T E N S I O N 3 0
3 0
4 7
22
AL1
S T A
A L 2
31
TO
E X T E N S I O N 3 1
4 9
TABLE 12 REMOTE EXTENSION CONNECTION
REMOTE
CABLE WIRE
MAIN EQUIPMENT
EXTENSION
TERMINAL
COLOUR
CONNECTION
A
B
2B
2 W T
2BL
2RD
2BK
White
Blue
nAL2
Red
Black
2.4.13
EPWB-C and Ring Generator Unit (Internal Extensions)
2 4
5 0
2 5
FIGURE 53 EXAMPLE OF WIRING FOR AN
INSTALLED IN POSITION ESTB-C/3
80
S D F
ISSUE 1