SAN/BAR SB6620B Circuit Description

SANIBAR CORPORATION
Ckcuit Description
Installation Series
Section 6620B-000
June 1979
Printed in U.S.A.
SB6620B 3-LINE KEY SYSTEM
lssue 1
CONTENTS PAGE
1.0 GENERAL 1
2.0 SPECIFICATIONS 2
3.0 INSPECTION 3
4.0 MOUNTING 3
5.0 INSTALLER CONNECTIONS 3
6.0 CIRCUIT DESCRIPTION 6
7.0 TESTING 6
1.0 GENERAL
1.1 This section provides general description and
installation instructions for the SANlBAR
SB6620B 3-Line Key System lssue 1.
The SB6620B KTS consists of a basic pre-wired
mounting fixture (for wall mounting) which will
mount a variety of plug-in circuit cards, and a
power supply assembly. The system is design-
ed to provide a means of connection to a max-
imum of three central office lines and also has
one mounting slot for several special functions.
The basic SB6620B may be modified to a max-
imum of five central office lines and one special
position by field addition of the model
SB6620B-210 Expansion Kit (shown in figure
1 A.)
1.2 The SB6620B may be equipped to provide such
features as music-on-hold, PA coupler, Manual
Intercom, Off-Premises extension, FM Music
Source, and Dial Intercom.
The SB6620B i s provided with two quick con-
nect distribution blocks as shown in. Figure 1
for all wiring interfacing to the central office
and local distribution.
SB6620B KEY TELEPHONE SYSTEM
FIGURE 1
1.3 The power supply assembly (shown in Figure 2)
mounts at the top of the SB6620B and is held in
place with snap fasteners for quick installation
or replacement. All distribution wiring between
the power supply and the rest of the SB6620B is
by a keyed locking connector assembly assur-
ing proper interconnect wiring. The power sup-
ply assembly may be provided with interrupter
andlor ringing generator as options. The power
supply and ringing generator are U.L. recogniz-
ed assemblies.
SB6620B-210 EXPANSION KIT
Figure 1A