SECTION 503-550-1 01
P-900234
RELAY
ASSEMBLY
TELEPHONE SET
NETWORK
FR- 4
8
FR-3
(W)
IGI
IS-R)
IY-SI
FR-1
( NOTE 4)
NOTES:
I. WHEN SPEAKERPHONE IS FURNISHED WITH
lA KTS, MAKE FOLLOWING CHANGES IN
ADDITION TO THOSE SHC.WN IN TABLE
0:
(A) AT FRONT TERMINAL BOARD:
Ll
e
MOVE ( Y) LINE SWITCH LEAD FROM
7 TO II.
e
CONNECT {G-V) MTG CORD LEAD TO
TERMINAL 8 INSTEAD OF AS SHOWN.
(B) CONNECT SG AROUND TO SPEAKER
PHONE AI LEAD AT EQUIPMENT.
2. WHEN SPEAKERPHONE IS FURNISHED WITH lA I
OR IA2 KTS, WIRE PER TABLE E AND CONNECT
AI GROUND TO SPEAKERPHONE AI LEAD AT
EQUIPMENT.
3. USE SPARE TERMINAL OR D-161488 CONNECTOR.
4. IF POLARITY GUARD IS REQUIRED, SEE TABLE G.
5.
LEADS ARE INSULATED AND STORED AND MUST
BE TERMINATED AS SHOWN.
*
INSULATE AND STORE.
OPTIONS:
®
lA KTS
®
IAI OR IA2 KTS
20128
TRANSFORMER
FRONT
TERM. BOARD
MOUNTING
CORD
IV-G)
*
760A
LOUDSPEAKER
18R-V)
6668
TRANSMITTER
(8K-0)
IS-8KI
(8K-S)
(8L-R)
(0-8K)
(Y-O)
IG-YI
48
Tl
AI
23
Rl
49
24
IR
AG
42
LK
ADD
TF2
TFI
SPI
SP2
Ml
PI
AI
Fl
Fig. 12--Connections for Adding External Speakerphone to 2671B1M Telephone Set
Page 14
BSP 503-550-101-i03_1970-12-14.jpg Scanned by Frank Harrell, {Cowboy Frank) Castle Rock, Colorado Apr 29,2012 21:39:29
CONTROL
UNIT
55
A
558
MOD.
19
-01
1
2
-0
2
10
--0
-015
--06
--011
(NOTE
27
--0
33
-029
-020
-07
16
13
--08
-<.?38
-0
9
17
