Bell System Practices 43B Installation, Operation And Maintenance Manual page 10

i
SECTION 501-165-102
229B KEY TELEPHONE UNIT
— —— ——~
11TH
OIGIT
SI
I I
n
EBMIO
II
b
21
I
0
I
ST
OIGIT
I
R:
S2
2
EBM9
12
22
2 NO
OIGIT
S3
3
EMB8
13
23
3 RO
OIGIT
TEL
S6
6
EMB5
16
6 TH
26
OIGIT
s?
7
EBM4
17
27
7 TH
OIGIT
Slo
1
30
I
_ 10 TH
DIGIT
32
L
m
39
0
—. ——
NOTE :
THE THREE DIOOES SHOWN ARE NOT PART OF THE 2296 KTU . EOUIP
WITH 533B OR EQUIVALENT DIOOES (OROEREO SEPARATELY)
CAI
38
Mlo
12
16
~
I 20
I
22
I
I 26
27
,
28
~
30 M4
40
---
Ult,
THE TWO 5338 OIOOES ARE NOT PART THE 227B KTU, THEY
MuST BE (ORDEREO SEPARATELY) ANO INSTALLEO AS SHOWN.
Fig. 8—227B Key Telephone Unit
Fig. 7—229B Key Telephone Unit
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