Bell System Practices 831 Series Installation & Maintenance Instructions Manual

BELL SYSTEM PRACTICES
AT& TCo Standard
SECTION S03-702-1 01
Issue 9, January 1980
831- AND 2831-TYPE TELEPHONE SETS
IDENTIFICATION, INSTALLATION, MAINTENANCE, AND CONNECTIONS
1. GENERAL
1.01
This section contains information for the
831- and 2831-type te lephone sets.
1.02
This section is reissued to:
• Show 831DM and 2831DM telephone set MD
• Show G12A handset (A&M Only)
• Show 3-type speakerphone MD
• Show 533K diode for use with Station Busy
Lamp, and Dial Restriction
• Add information on 831FM and 2831FM
telephone sets
• Add Table A, ordering guide and replaceable
components
· ·Remove information on P-90D170 polarity
guard
• Remove information on D-180656 Kit of
Parts (wall mounting arrangement)
Since this reissue covers a general revision, arrows
ordinarily use to indicate changes have been omitted.
2. IDENTIFICATION
A. Purpose
2.01
The831- (Rotary dial) and 2831-(TOUCH-TONE"'
dial, Fig. 1) type telephone sets are obtainable
as modu lar or complete desk-type, 20-button, key
telephone sets equipped to provide standard key
system features. Refer to Table A for available
colors.
Fig. 1-2831DM (MD) or 2831FM Telephone Set
B. Application
2 .02
Used with cent ral office, PBX or
intercommunication line circuits in lAl, 1A2,
or 6A key telephone system (KTS). These sets
are not equipped for use with lA KTS.
2.03
All 831- a nd 2831-type telephone sets may
be used with the 3-type (MD) or 4A
speakerphone system. When used with 3-type
speakerphone, a DlOR auxiliary mounting cord may
be required due to the limited number of mounting
cord conductors.
C. Optional Components
2.04
Optional Components (order separately):
• Diode, 533K. (for use with station busy
lamp)
NOTICE
Not for
usc)
OJ '
disclosure outside the
Bell System except under writl~n agreement
Pl'inted in U.S.A.
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