SAN/BAR SB4201A User manual

MODEL SB4201A FM RECEIVER
FOR MUSIC-ON-HOLD SERVICE
The SB4201A FM receiver is a complete, compact, easy to install music source designed to
be used in conjunction with SB4200A KTU line cards to provide music-on-holdin 1A2and
10A2 key telephone systems.
The SB4201A receiver
is mounted on a 18-pin KTU line card-size circuit board which
eliminates the need for bulky, expensive external FM receivers or a separate music source.
Installation is accomplished by simply insertingthe SB4201A in any KTU line card position
and breakingbattery and ground straps on the back of the KSU.
The music
is transmitted from the SB4201A to the SB4200A line cards on pins 3 and 18
via common straps in the KSU. One SB4201A is normally sufficient to provide a music
source for an entire key system.

SPEC1FICATIONS
ELECTRICAL CHARACTERISTICS
a. Power Source:
Ground Pin 15
-24V
+ 7V Pin 17
b. Power Consumption:
At no signal 1.6W.
At maximumoutput 3.6W
c. Antenna Impedance:
300 ohms
d. Audio Output Impedance:
8 ohms
e. MaximumAudio Output:
200 mw
at 1,000 Hz, 8 ohms load
Pin 3
Pin 18
f. Frequency Output:
150 Hz to 4,000 Hz
g. FM Tuning Range:
88 M Hz to 108 M Hz
'-M RECEIVER
} Receiver Output
18
15 GND
17 -24 V (AB)
l2 } External Antenna
13
PHYSICAL CHARACTERISTCS:
Size: 4-314" x 3-112x 1-5/16"
Antenna:
Built-inor external at user option. External
antenna connect to pins 12and 13.
Automatic Frequency Control:
OnIOff switch on front panel
Volume Control:
Potentiometer on front panel
(Adjustvia screw driver.)
Speaker Control Switch:
Switch on front panel directsaudio output
to pins
3 and 18for MOH or internal speaker to
monitor tuning adjustment.
V.U. meter on front panel: indicatespower
output level.
APPLICATION NOTE:
a. Although most users prefer to install the
SB4201A directly in a vacant KTU connector in
the key service unit, some users prefer to install
the SB4201A outside the key service unit.
The SB302A-1,asingle connector wallmounted
card cage is availablefor external mounting
applications.
b. Inthose cases where there is notavacant KTU
connector in the KSU for the SB4201A, the
SB318A mounting shelf is recommended.
i
INTERFACE DIAGRAM
1- 24 -- 24" -4
%?Tj== Any Length
I n
FOLDED DIPOLE ANTENNA
SAN 1 BAR CORPORATION
P.O.BOX 11787117422PULLMAN STREETISANTA ANA, CALIFORNIA9271ll(714)546-6500
SB4201A 176

SANlBAR CORPORATlON
INSTALLATION INSTRUCTIONS
FOR
MODEL
SB4201A FM RECEIVER
The SB4201A may be installed in any of the standard 18 pin line card
receptacles on most key telephone systems (KTS) or key service panels
(KSP) if the following steps are observed:
STEP 1 Pin 3 of each connector is usually connected to every other pin 3
and then terminated at "A" battery ground. Similarly, pin 18 of each
connector is multipled together and terminated at -24
VDC "A"
battery. It is necessary to isolate these multiples from the "A"
battery by either removing the fuse or removing the cross-
connecting clips at the type 66 block. If it is necessary to retain the
"A" battery connection for the Manual Intercom feature of the key
system, it will be required to separate the multiples to prevent "A"
battery from shorting out the music across pins 3 and 18.
STEP 2 The volume level comes preset from the factory when used with the
SANlBAR 4200A Line Card(s). Should an adjustment of the receiver
volume be required the following procedure may be used:
a) With the SB4201A installed in the desired receptacle, set
antenna switch to "internal" position.
b) Turn speaker switch "on". (This will disconnect the receiver from
the music-on-hold path and enable the installer to hear output.)
c) Set AFC switch to "off" position.
d) Select station and adjust volumn to an appropriate level.
e) Set AFC switch to "on" position.
f) Set speaker switch to "off" position and verify that the correct
adjustments have been made by listening through a line placed-
on-hold. If required repeat steps 2b thru 2f.
STEP 3 If the reception quality is not acceptable, an external antenna may
be employed. The antenna may have to be placed outside and a
feed line brought in, if the walls of the building are concrete.
a) Disconnect the station tip
& ring leads on the equipment side
of the R66 block (pin 12
& 13) for the receptacle that the trans-
mitter is applied to. Cap
& stow the leads.
b) Connect a folded dipole antenna, 48 inches long minimum, to
the R66 block at pins 12
& 13. (See Figure 2)
c) Set antenna switch on the receiver to "external" position and
tune in accordance with 2b thru 2f.

FM RECEIVER
1: I 1 Receiver Output
* l5 GND
-24 V (AB)
~FF " 13 External Antenna
FIGURE 1 INTERFACE DIAGRAM
/ 300n lead
3 1 Any bngth
FIGURE 2 FOLDED DIPOLE ANTENNA
SAN 1 BAR CORPORATION
P.O.BOX 11787117422 PULLMAN STREETISANTA ANA, CALIFORNlA 9271 1 [phone]