Clarity S-503 User manual

1 947428
CSP Talkback Speakers
Issue 6
S-503, S-570, SX15-45 and SX15-45M
45 OHM TALKBACK SPEAKERS
S-503 Ceiling Speaker
SX15-45 Talkback Horn
S-570 Doorplate Speaker
SX15-45M Talkback Horn
(Marine Version)
INTRODUCTION
These instructions contain the specifications and
information necessary to install, operate and maintain
the 45 Ohms Talkback Speakers, manufactured by
Clarity.
The S-503 Ceiling Speaker, the S-570 Doorplate
Speaker, and the SX15-45 and SX15-45M Talkback
Horns, are for use with "handsfree" talkback control
units.

2
SPECIFICATIONS
Applications
The 45 Ohm talkback speakers are designed to be
used with "handsfree" talkback control units. In
combination with these units, the speakers provide
both loudspeaker and talkback functions.
Environment
•Temperature: -20 to +55 Degrees C
•Humidity: 0 to 95% non-precipitating
Power Requirements
•None
Coverage
The distance you can be away from a speaker and still
have good talkback depends on the type of speaker
and ambient noise level. In a typical office
environment, these speakers will cover approximately
600 square feet (Talkback from 25').
Remember: The speaker is no better than your ears.
If you cannot carry on a conversation at normal voice
levels over the required talkback distance, then
talkback page equipment will not function
satisfactorily.
The speaker should be as close as possible to the
area where talkback is desired. It should not be
mounted close to, or pointed at, noise producing
equipment such asfans, air conditioners, machinery
or compressors.
Limitations
•One talkback speaker maximum per zone when
used with the DL-24A System
•800 feet maximum cable length to speaker
NOTE: Do not split pairs to speakers
•Do not use talkback in noisy areas (80dB or
greater)
Individual Units -
S-503 -Ceiling Speaker
The S-503 is a Ceiling Speaker designed to be used
with "handsfree" talkback control units. This speaker
is for interior use only and measures approximately
13" diameter x 3" deep.
Features:
•45 Ohmimpedance
•Eight inch speaker
•Easy hook-up (Two connections using CAT3 or
better twisted pair cabling)
Mounting / Connections:
•To install speaker assembly, measure and cut an
8.5" hole in center of ceiling tile (If using a S-
550 and S-551, Bridge and Backbox, cut a 10" hole
in center of ceiling tile).
•Mount speaker as close to primary talkback area
as possible. Ideal mounting height should be
between 7 and 23 feet.
•Connect station or other suitable wire to proper
speaker terminals per Figure 1.
S-570 -Doorplate Speaker
The S-570 is a Doorplate Speaker used to provide
handsfree talkback from an outside door or entryway
location. It is equipped with a push-button switch for
connection to customer provided signaling
equipment.
The doorplate speaker measures 4.5"W x 4.5"H x 2"D
and mounts to a 2-gang 4" x 4" electrical box.
Features:
•45 Ohm input impedance
•SPDT switch contacts rated at 1 Amp
•Easy hook-up using CAT3 or better twisted pair
cabling (Cable runs should be limited to 800 feet)
Mounting / Connections:
•Connect speaker out from page control to
speaker Tip. Speaker common to speaker Ring.
•Connect push-button switch to customer
provided signaling equipment (See Figure 2).
•Mount the doorplate speaker to the electrical box
at a convenient height for talkback.

3
SX15-45 -Talkback Horn
The SX15-45 is a Talkback Horn for use with
"handsfree" talkback control units. This horn
functions as a microphone when in the listening mode
and as a loudspeaker when in the paging mode.
Features:
•45 Ohm input impedance
•Universal mounting base (Fits any electrical box)
•Easy connection using twisted cabling
•"C" clamp included
Mounting / Connections:
•Connect station or other suitable wire to proper
speaker terminals per Figure 1.
SX15-45M -Talkback Horn (Marine Version)
The SX15-45M is a Talkback Horn for use with
"handsfree" talkback control units in a nautical
atmosphere. This horn functions as a microphone
when in the listening mode and as a loudspeaker
when in the paging mode.
Features:
•Stainless steel hardware
•Sealed housing
•White finish with UV inhibitors
•45 Ohm input impedance
•Universal mounting base (Fits any electrical box)
•Easy connection using twisted cabling
•"C" Clamp included
Mounting / Connections:
•Connect station or other suitable wire to proper
speaker terminals per Figure 1.
SX15-45 and SX15-45M -Attaching Speaker to
Base
NOTE: For ease of installation, the base can be
attached to the speaker before or after the base is
mounted.
•Loosen position adjustment knob.
•Insert the ball of the base into the socket of the
speaker.
•Tighten the position adjustment knob.
SX15-45 and SX15-45M -Mounting / Positioning:
Mount the horn to a suitable surface using the
hardware provided. These units can be mounted to a
wall, a beam or an electrical box.
•Mount the base to a wall using the holes
provided. Knockout holes are provided for
punch out should additional holes be required.
•A "C" clamp is provided with the horns to allow
mounting to a beam. Place the bolt through the
hole in the bottom of the base to secure the "C"
clamp to the beam (See Figure 3).
•Connection to an electrical backbox is
accomplished by channeling wire through the
ball of the base (See Figure 4) and making
appropriate connections. The base has holes
punched for a double-gang square box, but by
punching out additional knockout holes, the base
can be mounted to a single-gang or octagon box.
The horns may be rotated or moved up and down to
obtain the desired position by loosening the knob at
the bottom of the unit approximately 1 turn. Make
required adjustments and re-tighten knob.

4
TECHNICAL ASSISTANCE
When trouble is reported, verify the unit is turned on
and there are no broken connections leading to the
unit.
Assistance in troubleshooting is available from the
factory. When calling, you should have a VOM
available and be calling from the job site. Call (540)
563-2000 and ask for Technical Support or call (540)
767-1555 for Clarity 24-hour Faxback System or visit
our website at http://www.clarity-com.com.
CLARITY equipment is notfield repairable. Clarity
maintains service facilities in Roanoke, VA. Should
repairs be necessary, attach a tag to the unit clearly
stating your company name, address, phone number,
contact person and the nature of the problem. Send
the unit: Clarity
Repair and Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056
TABLE 1
TROUBLESHOOTING CHART
Problems Probable Causes and Corrections
No Sound in Page Mode 1. Check Tip and Ring for audio at speaker.
2. Check Tip and Ring at control unit.
Low Sound in Page Mode 1. Check volume controls at page control.
Poor Listening in Talkback Mode 1. Check talkback volume controls at page control. Set control at
minimum suitable listening level.
Page
Control
Unit
Out
Common
Tip
Ring
FIGURE 1
Connections for the S-503, SX15-45 and SX15-45M
Page
Control
Unit
T
RS-570
Used with DL-24A
when call-in
required
B
S
M
FIGURE 2
Connections for the S-570

5
LIMITED WARRANTY
Clarity warrants its products to be free from defects in materials and workmanship under conditions of normal use and service
for a period of one year from the date of shipment. The obligation under this warranty shall be limited to the replacement, repair
or refund of any such defective devicewithin the warranty period, provided that:
1. Inspection by Clarity indicates the validity of the claim;
2. the defect is not the result of damage, misuse, or negligence after the original shipment;
3. the product has not been in any way repaired by others and that factory sealed units are unopened (A service charge
plus parts and labor will be applied to units defaced or physically damaged);
4. freight charges for the return of products to Clarity are prepaid;
5. all units “out of warranty” are subject to a service charge. The service charge will cover minor repairs (Major repairs will
be subject to additional charges for parts and labor).
This warranty is in lieu of and excludes all other warranties, expressed or implied, and in no event shall Clarity
be liable for any anticipated profits, consequential damages, loss of time or other losses incurred by the buyer
in connection with the purchase, operation, or use of the product.
This warranty specifically excludes damage incurred in shipment. In the event a product is received in damaged condition, the
carrier should be notified immediately. Claims for such damage should be filed with the carrier involved in accordance with the
F.O.B. point.

6
I-Beam
"C" Clamp
Speaker Base
Position
Adjustment
Knob
Figure 3 - Mounting to a Beam with a "C" Clamp
Electrical
Backbox
Position
Adjustment
Knob
Wire
Speaker
Base
Figure 4 - Mounting to an Electrical Backbox
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3
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