ISS 2, SECTION 502-6 10-406
TABLE A
lA AND 1 A1 SYSTEM CONVERSIONS
CONNECTIONS FOR SETS USING D 1 20B(MD), D 1 20C, D200B(MD), OR D200F MOUNTING CORDS
LEADS
CHAINING SWITCH
HOLD KEY
KEY TELEPHONE SYSTEM
631 SETS
630 AND 631 SETS
ONLY
CENTRAL OFFICE OR
PBX LINE FEATURE
(V-G)
(Y-G)
(G-Y)
(V-0)
(BR-V)
(V-BR)
[BL-W]
[BK-BL]
[BK-W]
[5-W]
[5-Y]
[S-BK]
1ST
KEY
lAl or 1A2 only (as furnished
A-H
A-H
•
•
•
A-H
by shop)
(I)
(I)
(I)
First key unit lAl or 1A2 re-
A-H
§
•
It
R
§
maining key units lA
(I)
(I)
(II)
First and second key units lAl
A-H
lt
R
A-H
or 1A2; remaining key units
§
•
lA
(I)
(II)
(III)
(I)
First, second, and
third key units lAl
A-H
§
•
lt
R
A-H
or 1A2; remaining
(I)
(III)
(IV)
(I)
key units lA
631
sets
First through fourth
only
key units lAl or
A-H
•
lt
R
A-H
1A2; fifth key unit
(I)
§
(IV)
(V)
(I)
lA
lA only (see connection note 2
A-H
Rl
R
A-H
in Fig.3)
§
(I)
.
(VI)
(I)
(I)
Note:
Roman numerals in parentheses indicate terminal board designations.
•
Lead is spade tipped, insulated, and stored.
V-G)
(V-G)
(V-G)
(V-G)
BL-W] [BL-W]
[BL-W
[BL-W]
2ND
3RD
4TH
5TH
KEY
KEY
KEY
KEY
A-H
A-H
A-H
A-H
(II)
(III)
(IV)
(V)
A-H
A-H
A-H
A-H
(II)
(III)
(IV)
(V)
A-H
A-H
A-H
§
(III)
(IV)
(V)
A-H
§
A-H
A-H
(II)
(IV)
(V)
A-H
A-H
X
A-H
(II)
(III)
(VI)
(V)
A-H
A-H
A-H
A-H
(II)
(III)
(IV)
(V)
LINE
STRAP
SWITCH
(BL-V)
(0-V)
(BR)
[R]
[Y]
[S-G]
R
1B
(I)
VI)
t
R
lB
(I)
VI)
t
R
lB
(I)
VI)
t
R
lB
(I)
VI)
t
R
lB
(I)
VI)
t
Rl
SG
6
(VI)
(VI)
(VII)
t
BR lead connects to terminal
5
of telephone set terminal board when station busy lamp circuit is not required or to
terminal 6 when station busy lamp is required.
t Disconnect, insulate, and store R (BL-V) chaining lead.
§
Connect to terminal
X
of TBIV on 18-button sets or to terminal
X
of TBVI on 30-button sets.
) Current color code
]
MD color code
BSP 502-610-406-i02_1972-Ql-.Q7.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 04, 2012 12:27:53
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