Bell System Practices 636A Manual page 18

SECTION 502-610-410
KEY
599H
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E
34
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SU'L
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35
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1 8
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50
HOLD
4 9 (
48
23
HOLD
24
25
* - I NSULATEO ANO STOREO
• Fig. 8-Priority Hold, Using 599H Key •
Page 18
18 Pages
BSP 502-610-410-i02_1972-04·18.jpg Scanned by frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 04, 2012 14:19:29
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CONN CABLE
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(G-BK )
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SP
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KEY
KTU
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HOLD
HOLD
SUPL
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• Fig. 9-Priority Hold, Using 657L Key •
L
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so
f--- -
4 9
A-
48
H
f--- -
23
24
25
A - H
CONN
CABLE
TO
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430A
KTU
A
TPA 563668