Ringer; Buzzer; Handset Jack - Bell System Practices TOUCH-A-MATIC 2872A1M Identification, Installation, Connections, Operation, And Maintenance

ISS 5, SECTION 503-603-101
• Record disable feature, only. (1) Remove housing (paragraph 3.21).
(a) RECORD lamp will not light when (2) Access PSB terminal area (paragraph 3.17).
RECORD button is depressed.
(3) Remove cradle (paragraph 3.20).
(b) No telephone numbers can be recorded,
changed, or deleted in memory. (4) Thread jackset cord through hole in rear of
housing and make connections per appropriate
(c) LAST NUMBER DIALED feature is table provided with Plantronics Jackset.
operative.
(5) Reassemble telephone set.
• Record disable and dial intermix features.
(6) Insert head telephone set plug into jackset.
(a) RECORD lamp will not light when
record button is depressed. _ Other optional components may be
used such as SPOKESMAN _ loudspeaker
(b) No telephone numbers can be recorded, sets, etc. Refer to the appropriate
changed, or deleted in memory, section for connection information
for these components.
(c) LAST NUMBER DIALED feature is
disabled.
COMPONENT LOCATION AND ACCESS INFORMATION
(d) Manually and automatically dialed digits
A. Location of Components
may be intermixed (paragraph 5.07).
3.14 The components are located in three areas
(10) Reassemble set. as follows.
E. Single Line Service (a) Under the handset cradle (Fig. 3):
3.12 The 2870A2M TOUCH-A-MATIC telephone • Buzzer
set is available from the factory as a single
line set. However, the 2872AIM (MD) and 2872A2M • Ringer
telephone sets may be converted to single line
service as follows. • Line switch assembly
(1) Remove the faceplate, key collar, and all • Handset jack
buttons of the 635-type key.
• Terminal boards (TB1 and TB2).
(2) Gain access to terminal area (paragraph
3.17). (b) Under the faceplate, inside the set (Fig. 4
and 5):
(3) Remove the cradle (paragraph 3.20).
• Battery jack (Fig. 5)
(4) Make connection per Table L.
• Power supply (PSB) terminal area (Fig. 4)
(5) Reassemble set and install a 2870B1 faceplate
of the appropriate color. • Network (Fig. 4)
Note: If set was originally equipped with a • Options (Fig. 4):
2872A1-87 faceplate, refer to paragraph 6.11.
D-180492 (relay kit for speakerphone)
F. Head Telephone Set
D-180493 (dial tone detector and one-touch
3.13 To install, calling switch kit)
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