Bell System Practices 220 Identification, Installation, Connections, And Maintenance page 17

2270 JACK
ADAPTER
(SEE
NOTE)
>--- --7
>--- --7
TIP)--- -- -7
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RING)---?
PART
IDEN T
BSP 502·303-102-i02_1979-12·17.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado
RECALL
DIAL
SWITCH
LIGHT
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NOTE: PROVIDED WITH 220AM HANDSET ONL Y .
OP - DIAL PULSE CONTACTS
Fig. 23-Schematic of 220A (MD) and 220AM Hand Telephone Set
NETWORK
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Feb 07, 2012 13:33:13
ISS 2, SECTION 502-303- 1 02
RECEIVER TRANSMITTER
UNIT UNIT
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DIAL
OP
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