Bell System Practices 660A1 Connections page 11

INSIDE
WIRE
A1-SG
NOTES:
1.
(R) AND (G) CDN[)JCTORS ARE NOT TERMINATED
IN PLUG OF M2FG CORD; ONLY
CON[)JCTORS ARE USED.
2. SET WIRED FOR BRIDGED RINGING, FOR OTHER SERVICES OR
FOR 1A1 OR 1A2 KTS USE, REFER TO TABLE D.
l. (O-R) LEAD IS DEAD DRESSED IN PLUG OF 22M ADAPTER.
INSULATED AND STORED
*
NETWORK TERMINAL
0-161488 CONNECTORS
DEAD DRESSED
STRAP APPEARS ON 1 08AA ONLY
p
...
Q
CQ
..
Fig. 5-.Typical Grandfathered 4A Speakerphone Arrangement, Connections to 2660A
BSP 512-730-450-i05_1979-09-ll.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 23, 2012 22:23:48
CONN BLOCK
D4BU 62lP4
OR ADAPTER CORD JACK
ASSEMBLY
(G)
(R)
.�.
(BK)
.�.
�
, ,
FROM
DIAL
TO
B5B1
POWER
UNIT
(BK) AND (Y)
M16C OR 22lA OR
2660A IM
ADAPTER
M16H
TELEPHONE SET
CORD
(NOTE l
(NOTE 2)
G I
L2 I (BL-W)
(W-0)
*
[
*
L11
(W-BR)
(D)
(W-BL)
(V) (G-W)
(W-G)
FROM
*
(S) (O-W)
LINE
SWITCH
(R-BL)
*
(BL-R)
*
(W-S)
*
(S-W)
*
(R-G)
*
M2FG
(G-R)
*
CORD
(NOTE 1)
(BK)
(BR-W)
*
c
c
(D-R)
22)0
D2DN 10B-
TYPE
MTG
LSPK
CORD
SET
(O-W) VOL
18
R1
(BL-W)
9
( -0) AG
W
47
(W-BR) A1
50
15
(W-BL)
45
10
(G-W) P4-IR
4B
(W-G) Pl-IT
46
1B
6-B1-K5B
(R-BL)
22
20
(BL-R) R-R1-K4B
19
19
(W-S) B-B1-K5C
2
)
(S-W) R-R1-K4C
20
(R-G) AC
24
(G-R)
AC
25
10
)5
(BR-W) BL-K5M
21
: 7
(BR-R) -6.2
4
(R-BR) +6,2
16
(R-0) +V
44
26
7
( -S) TVL
R
4
)
27
(S-R)
GRD
42
28
21
(O-R) ON
41
29
�
� 12
1M Telephone Se ..
680-
MTG
TYPE
TRMTR
CORD
(W-BR)
VOL
(O-W) LK
8
-6.2
(BL-W)
+6.2 7
(W-BL)
9
(BR-W) +V
6
TVL
(G-W)
"'
4
(W-G) GRD
"'
2
(W-0) ON