Bell System Practices 660A1 Connections page 10

E E HONE E
2660AI
P T
T L S
N
Tl P
R
I
I
-
A
FROM Tl
R
DIAL (V)
I
IT
FROM
LK
IS)
LINE
SWITCH
SPARE
SPARE
NOTES:
I.
(R) ANO (G) CONDUCTORS ARE NOT TERMINATED
IN PLUG Of M2fG CORD; ONLY (BK) ANO {Y)
CONDUCTORS ARE USED.
2.
(0-R) LEAD IS OEAO DRESSED IN PLUG Of 223A ADAPTER.
II
INSULATED ANO STORED
t
NETWORK TERMINAL
+ 0-161488
CONNECTORS
§
OEAO DRESSED
11
STRAP APPEARS ON IOBAA ONLY
Fig. 4-.Typical Grandfathered 4A Speakerphone System Arrangement, Connections to 2660A 1 (MD) Telephone
BSP 512-730-450-i05_1979-09-lO.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado
ll
TO
I
MTG
D OR CORD A OR
I
A
GRD
(W-BL)
G (BL-W)
____
SEE A-AG (W-0)
C
TABLE
S
G
(O-W)
(w-G)
(BR-W)
(W-BR)
(5-W)
(w-s)
(G-W)
Se�
Feb 23, 2012 22:23:32
C N
NE 44A
MI6C
O
N
OR
BLK
MI6H
RING
Tl P
CORD
(Bl-W)
(W-0)
4 (W-BR)
(W-BL)
(G-W)
10
(W-G)
(o-w)
(R-BL)
(BL-R)
lt
(W-5)
{ BK I
TO
U
B�BI
POWER
T
NI
MZFG
CORD
{NOTE I)
lt
(R-0)
2 2
OR
AO
(N
(G-W) TVL
4
(W-G GRD