Aria
-34e
Installation
Digital Key Telephone System
Aria Communications Pty Ltd.
Rev 1.3
A.C.N. 090 723 925
4-38
4.7.5 CO Line Wiring
The 4LCO and LCOB are wired to the CO line from telephone company through
CN15 of the MBU. Refer to following Table 6.( CO connector-CN15).
Punch-Down
MBU Connector CN15
Block Pin
Pair
Pin
Color-Code
Designation
1
1
26
WH/BL
CO1-R
2
1
BL/WH
CO1-T
3
2
27
WH/OR
CO2-R
4
2
OR/WH
CO2-T
Slot #3
5
3
28
WH/GN
CO3-R
6
3
GN/WH
CO3-T
7
4
29
WH/BN
CO4-R
8
4
BN/WH
CO4-T
9
5
30
WH/SL
CO5-R
10
5
SL/WH
CO5-T
11
6
31
RD/BL
CO6-R
12
6
BL/RD
CO6-T
Slot #4
13
7
32
RD/OR
CO7-R
14
7
OR/RD
CO7-T
15
8
33
RD/GN
CO8-R
16
8
GN/RD
CO8-T
17
9
34
RD/BN
CO9-R
18
9
BN/RD
CO9-T
19
10
35
RD/SL
CO10-R
20
10
SL/RD
CO10-T
Slot #5
21
11
36
BK/BL
CO11-R
22
11
BL/BK
CO11-T
23
12
37
BK/OR
CO12-R
24
12
OR/BK
CO12-T
25
13
38
BK/GN
CO13-R
26
13
GN/BK
CO13-T
27
14
39
BK/BN
CO14-R
28
14
BN/BK
CO14-T
Slot #6
29
15
40
BK/SL
CO15-R
30
15
SL/BK
CO15-T
31
16
41
YL/BL
CO16-R
32
16
BL/YL
CO16-T
33
17
42
YL/OR
CO17-R
34
17
OR/YL
CO17-T
35
18
43
YL/GN
CO18-R
36
18
GN/YL
CO18-T
Slot #7
37
19
44
YL/BN
CO19-R
38
19
BN/YL
CO19-T
39
20
45
YL/SL
CO20-R
40
20
SL/YL
CO20-T
41
21
46
VI/BL
-
42
21
BL/VI
-
BK:BLAC
K
43
22
47
VI/OR
-
BN:BROW
N
44
22
OR/VI
-
OR:ORAN
GE
45
23
48
VI/GN
-
WH:WHIT
E
46
23
GN/VI
-
GN:GREE
N
47
24
49
VI/BN
-
SL:SLIVE
R
48
24
BN/VI
-
VI:VIOLE
T
49
25
50
VI/SL
-
50
25
SL/VI
-
YL:YELL
OW
Table 6. CO Connector (CN15) Wiring