Advertisement
SECTION S02-610-418
KEY
MODULE
ARRANGE-
MENT
1A1/1A2
Only
1A1/1A2-
1st, 2nd,
3rd, 4th, Mod
1A-5th Mod
1A1/1A2-
1st, 2nd,
3rd Mod
1A-4th, 5th
Mod
1A1/1A2-1st,
2nd, Mod
1A-3rd, 4th,
5th Mod
1A1/1A2-
1st Mod
1A-2nd, 3rd
4th, 5th Mod
1A Only
Insulated and stored.
•
t Remove (BR-Y) mounting cord lead. Insulate and store.
Page 12
BSP S02-610-418·i04_1975-Q3-12.jpg
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock. Colorado Feb 04, 2012 14:38:30
1A, 1A1, AND 1A2 CONVERSION - 637DA TELEPHONE SET
HOLD KEY
V-G
y
G
BR-V
V-BR
1ST
MOD
•
•
10
10
5
10
12
41
14
5
10
12
31
14
5
10
12
21
14
5
10
12
11
14
12
10
37 t
13
5
•
TABLE B
LEAD
CHAINING PLUG
V-G
V-G
V-G
R
R
2ND
3RD
4TH
1ST
2ND
MOD
MOD
MOD
MOD
MOD
15
35
9
11
45
11
15
35
12
9
15
12
45
9
11
12
45
9
11
35
15
35
45
9
14
15
35
45
37
11
CONTACT STRIP
OR PLUG
R
R
R
R
R
4TH
1ST
3RD
2ND
3RD
MOD
MOD
MOD
MOD
MOD
21
31
9
11
21
21
31
9
11
21
21
14
9
11
21
14
31
9
11
14
21
31
9
14
21
21
31
37
11
21
LINE
SW.
R
R
y
4TH
5TH
MOD
MOD
31
41
8
31
14
8
14
41
8
31
41
8
31
41
8
31
41
18
Advertisement
