Bell System Practices TOUCH-A-MATIC 2872A1M Identification, Installation, Connections, Operation, And Maintenance page 12

SECTION 503-603-101
•. MEMORY
LOGIC
RESET
SWITCH
CONNECTION PINS
FOR D-180818
KIT OF PARTS
BATTERY
JACK
P OW ER S U PPLY
• DIAL CONNECTOR
CONNECTOR
Fig. 5--2872A2M Telephone Set, Internal View, Overall
(4) Disengage the two captive dial mounting strapped together. (The one-touch calling
screws and move dial aside, option can no longer be turned off by the
subscriber.)
(5) Rotate left edge of the memory upward as
shown by Fig. 5. (7) Connect switch lead connectors to post
terminals on memory board per Table K.
Note: If set is equipped with a 2870A
Memory, replace it with 2870B Memory and (8) With feature switch in OFF position, verify
carefully pack and return the old memory that set operates in normal manner:
according to local procedures.
• Numbers can be recorded into memory
(6) Mount switch below dial using the two screws
provided (Fig. 4). • Numbers can be changed
Note: If the one-touch calling switch (D-180493 • Numbers can be deleted from memory.
Kit of Parts) has been provided, it must be
removed. The PSB terminals where the switch (9) Set feature switch to ON position and verify
leads were connected (Table C or E) must be feature provided.
Page 12