Bell System Practices TOUCH-A-MATIC 2872A1M Identification, Installation, Connections, Operation, And Maintenance page 19

ISS 5, SECTION 503-603-101
(a) Lower housing. 4. CONNECTIONS
(1) Unplug the handset cord, at the telephone 4.01 Telephone set connections are shown in Fig.
set end and remove handset. 9 and Table I.
(2) Remove the faceplate (paragraph 3.19). Caution: Some conductor assignments
are not standard (Table D.
(3) Remove the handset cradle (paragraph
3.20). 4.02 Refer to Table A for connection reference
for all options.
Warning: Attempting to remove the
housing without removing the handset 4.03 A partial functional schematic is shown on
cradle may damage the line switch Fig. 15.
arm.
5. OPERATION
(4) Disengage the four captive housing screws
(Fig. 2) located in each corner of the upper
A. Record A Number Into Memory
housing.
5.01 To record.
(5) Separate the housing from the telephone
set base. (1) Remove the faceplate (paragraph 3.19).
(6) Feed mounting cord through hole in bottom (2) Write or type the desired name and telephone
of housing as housing is removed, number for a selected memory button on
the associated position of the directory sheet.
(7) Before replacing the housing, lift the set
to check that the shoulders of the battery (3) Replace the directory sheet and faceplate.
jack are against the two tabs on the chassis.
Misalignment may cause the bottom of the (4) Depress the RECORD button. The RECORD
housing to bow. lamp adjacent to the RECORD button will
light. (A number can be called and recorded
(8) When replacing the housing, keep the simultaneously by lifting handset before depressing
handset jack from being trapped between the RECORD button.)
the housing and the chassis.
Note: If set is equipped with the D-180818
(b) Upper housing. Kit of Parts, switch must be in the OFF
position.
(1) Remove the faceplate (paragraph 3.19).
(5) Depress the specific memory button adjacent
(2) Disengage the captive housing screws to the desired telephone number listed on
located in each corner of the upper housing the directory sheet.
(Fig. 2). This will release the lower housing.
(6) Manually dial the desired telephone number,
(3) Pull the upper housing away from the if an access code and pause for second dial
chassis as each housing screw is backed tone is required--
out. This will separate the upper housing
from the chassis. (a) Dial the access digit(s) for the outside
line.
(4) If necessary, back screws out of upper (b) Push the WAIT button when the RECORD
housing, lamp relights. (The WAIT entry counts
as one digit.)
(5) To reassemble, reverse procedure. (c) Dial the telephone number.
Page 19