Bell System Practices TOUCH-A-MATIC 2872A1M Identification, Installation, Connections, Operation, And Maintenance page 9

ISS 5, SECTION 503-603-101
KEY TABS .............. "
TERMINAL
B0 A R D T B 2 L:_,_: :_i:: ' .
LINE SWITCH
ASSEMBLY
TERMINAL
BOARD TBI
PIB RINGER
BUZZER
MOUNTING SCREW
:_.:; •
616B JAC
ATTACH STAYBAND
OF NONMODULAR
HANDSET CORD
KS-20419 LI BUZZER
Fig. 3--2872A2M Telephone Set With Faceplate, Handset, Handset Cradle, and Upper Housing Removed
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