Bogen Speaker OCS1 User Manual

Orbit Ceiling Speaker  
OCS1  
Installation and Use Manual  
© 2003 Bogen Communications, Inc.  
All rights reserved.  
Specifications subject to change without notice.  
54-2089-01B 0406  
 
Product Diagrams  
OCS1 Front Drawing (grille removed)  
1. Coaxial Driver Assembly  
2. BassTuningVents (x2)  
3. Grille Retention Groove  
4. PowerTap Selection Switch  
5. Mounting Clamp Screws (x4)  
OCS1 Front Drawing  
(grille removed)  
OCS1 Rear Drawing  
6. Metal Back Can  
7. Snap-Lock Input Connector  
8. Mounting Clamps (x4)  
OCS1 Rear Drawing  
OCS1 Rear Drawing (terminal cover)  
9.Terminal Covers (2 identical halves)  
10. Eyelets (x2)  
11. Mounting Screws (x4)  
12.Wire Exit Slot  
13. Conduit Knock Out (x2)  
OCS1 Rear Drawing  
(terminal cover)  
1
 
Installation  
The OCS1 can be installed in a variety of ceiling environments.The use of theTBCR  
(Tile Bridge Support Ring) accessory may be desired for many of these environments.  
For suspended ceilings, the use of a TBCR is strongly recommended to  
help support and distribute the weight of the speaker.  
In new construction installations, the TBCR, installed before sheetrock, acts as a  
routing template that ensures an accurate and neat hole for installation.The TBCR  
can also be used as a support ring in retrofit applications to better distribute the  
speaker’s clamping forces.  
IMPORTANT  
There must be a minimum of 11" of vertical clearance between the FRONT  
of the mounting surface and any other structure for the speaker to fit. Before  
cutting the full hole, use a smaller exploratory hole to determine if there are  
any obstructions.  
The edge of the hole must be a minimum of 1-¼" away from any side obstruc-  
tions to ensure that they will not interfere with the action of the clamps.  
1. Begin by cutting a 10-¾" circular hole where the OCS1 will be installed. If using  
aTBCR,then follow its installation instructions for the specific type of environment  
the OCS1 is being installed in.  
2. Make electrical connections to the pluggable terminal strip and plug it onto the  
OCS1. See SpeakerWiring section.  
3. Install terminal cover plates, if necessary or desired, using 4 screws. See the  
Terminal Covers section if using conduit or if it is required to secure the speaker  
directly to the structure (typically for suspended ceilings).  
4. Remove the speaker’s grille. See Speaker Grille Installation & Removal section.  
5. Set the power level using the rotary selector switch on the front panel. Refer to  
the Selecting Power Levels section for instructions on selecting the power level.  
6. Position the swing-out clamps so that they are against the body of the speaker  
and insert the speaker into its opening in the ceiling.  
7. Tighten the clamps by turning the clamping screws clockwise. Do not over-tighten  
the clamps - only tighten until the speaker is fairly snug in the mounting hole. If  
using an electric driver, set the clutch on the driver to the lowest setting.  
8. Re-install the speaker’s grille. See Speaker Grille Installation & Removal section.  
2
 
Speaker Wiring  
All wiring should be done prior to installation  
and then plugged into the rear of the OCS1.  
Wiring is terminated at a snap-lock input  
connector. There are two positive and two  
negative terminals to accommodate daisy-  
chaining of speakers in a system.  
Daisy-Chaining  
The OCS1’s snap-lock input connector allows  
for easy daisy-chaining of speakers by providing  
a second terminal of each polarity. See the  
figures to the right and below for correct  
wiring for daisy-chaining of terminals.  
Speaker Phasing  
Keep the same polarity terminals wired together to ensure correct phasing. In order  
to provide the best possible sound, all of the speakers in a system need to be  
pushing out and pulling in at the same time.  
If the connections to one speaker in a system are reversed from the others, that  
speaker’s movement will be out of sync with the other speakers.This will result in a  
loss of low frequency response and will effect the overall performance of the system.  
Terminal Covers  
The two terminal cover halves are attached to the back of the speaker using 4  
screws. It is important that all 4 screws be used to mount the covers.  
A slot between the two halves allows the wire to exit the speaker while  
protecting the connections.The cover's eyelets can be used to anchor the wire  
using a wire tie if desired.  
If local codes require the use of a conduit for connections or strain relief of the  
connections, a knockout can be removed and a proper fitting installed for the  
particular situation.  
Eyelets are provided on the terminal covers to provide a means of securing the  
speaker to the structure when necessary.It is important that all 4 terminal cover  
attaching screws be installed in this application.  
3
 
Selecting Power Levels  
The front-mounted selector switch is used to  
set the appropriate power level or impedance  
for your system. Using a small, flat-blade  
screwdriver, turn the knob until the slot points  
to the power level you require.  
70V/100V Systems  
Both power setting scales for 70V and 100V  
systems are labeled on the speakers. On the 100V  
scale, the last position clockwise is marked with a  
symbol. Do not use this position in 100V  
systems.  
16 Systems  
The fully counterclockwise position of the setting switch is the 16-ohm position.This  
setting is suitable for use with low-impedance amplifiers that typically support 4- or  
8-ohm speakers.The speaker’s higher,16-ohm impedance makes it easier to combine  
multiple speakers into series-parallel networks while keeping the total system  
impedance at a level suitable for low-impedance amplifiers.  
Speaker Grille Installation & Removal  
Installation  
The speaker grille fits tightly! Push the speaker grille  
in until it can go no further. Then, slap around the  
edge of the grille to seat the grille.The grille is prop-  
erly seated when it is flush with the edge of the bezel.  
Removal  
Insert a pocketknife blade between the grille and the  
1
bezel about a /4" deep and then gently pry the grille  
upwards. Do this in multiple places around the  
circumference of the grille to free the grille.  
4
 
Specifications  
SPECIFICATIONS  
OCS1  
*
60 Hz to 19 kHz  
Frequency Response (-10 dB)  
1
6- /2" MDT Metal-Alloy Cone  
(MLSVoice Coil Centering System)  
LF Driver  
HF Driver  
20 mm (3/4") Polycarbonate Dome  
89.5 dBspl (Average 100 Hz - 10 kHz)  
120°  
Sensitivity (1W/1M)  
Usable Coverage Angle  
Impedance Ratings  
Power Input (Max.)  
Low (16 ohms) / High (70V/100V)  
100W @ 16 ohms; 32W @ 70V/100V  
70V: 32, 16, 8, 4, 2, 1W & 16 ohms  
100V: 32, 16, 8, 4, 2W & 16 ohms  
Power Settings (in watts)†  
Baffle Material  
Back Can Material  
Terminations  
Fire-rated (94VO) ABS  
Heavy-Gauge Plated Steel  
4 Terminal Snap-Lock Input Connector  
10 lb.  
Product Weight  
Speaker Dimensions  
12-5/16" dia. x 12" D  
Vertical Clearance  
Requirement  
Minimum 11" (From front of Mounting Surface)  
Input Terminal Cover (2 Halves); (4) Screws;  
Included Accessories  
(1) Snap-Lock Input Connector  
Optional Accessories  
Baffle Ring Finish & Color  
Listings  
Tile Bridge Support Ring (TBCR)  
Textured White  
CSA/UL Listed  
*
Half-Space Response, 16-ohm input  
† Front panel, switch-selected.  
5
 
Accessories  
TBCR (Tile Bridge Support Ring)  
The TBCR is a combination tile bridge and support ring that assists in securing the  
OCS1 and in distributing the weight of the OCS1 in various types of installations.  
CK10 (Cable Kit, 10')  
The CK10 is a 10-foot cable with one looped end and an adjustable cable clamp. It  
is suitable for use as a safety cable.The CK10 is available in black, white, or silver.  
Limited Warranty  
The Orbit Ceiling Speaker, model OCS1, is warranted to be free from defects in materi-  
al or workmanship for five (5) years from the date of sale to the original purchaser. Any  
part of the product covered by this warranty that, with normal installation and use,  
becomes defective will be repaired or replaced by Bogen, at our option, provided the  
product is shipped insured and prepaid to: Bogen Factory Service Department, 50  
Spring Street, Ramsey, NJ 07446, USA. The product will be returned to you freight pre-  
paid. This warranty does not extend to any of our products that have been subjected to  
abuse, misuse, improper storage, neglect, accident, improper installation or have been  
modified or repaired or altered in any manner whatsoever, or where the serial number or  
date code has been removed or defaced.  
THE FOREGOING LIMITED WARRANTY IS BOGEN’S SOLE AND EXCLUSIVE WAR-  
RANTY AND THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY. BOGEN  
MAKES NO OTHER WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,  
AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A  
PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE  
MAXIMUM EXTENT ALLOWABLE BY LAW. Bogen's liability arising out of the manu-  
facture, sale or supplying of products or their use or disposition, whether based upon  
warranty, contract, tort or otherwise, shall be limited to the price of the product. In no  
event shall Bogen be liable for special, incidental or consequential damages (including,  
but not limited to, loss of profits, loss of data or loss of use damages) arising out of the  
manufacture, sale or supplying of products, even if Bogen has been advised of the pos-  
sibility of such damages or losses. Some States do not allow the exclusion or limitation  
of incidental or consequential damages, so the above limitation or exclusion may not  
apply to you. This warranty gives you specific legal rights, and you may also have other  
rights which vary from State to State.  
Products that are out of warranty will also be repaired by the Bogen Factory Service  
Department -- same address as above or call 201-934-8500. The parts and labor  
involved in these repairs are warranted for 90 days when repaired by the Bogen Factory  
Service Department. All shipping charges in addition to parts and labor charges will be  
at the owner's expense. All returns require a Return Authorization number.  
50 Spring Street, Ramsey, NJ 07446, U.S.A.  
 

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