CyberData | 011154 | Operations Guide | Cyberdata 011154/011153 Wall Mount Clock Kit Operations Guide

Cyberdata 011154/011153 Wall Mount Clock Kit Operations Guide
The IP Endpoint Company
Wall Mount Clock Kit 
Operations Guide
Part #011153*, RAL 9002, Gray White, Standard
Part #011154, RAL 9003, Signal White, Optional
*Replaces #011023
Document Part #930283I
CyberData Corporation
3 Justin Court
Monterey, CA 93940
(831) 373-2601
Wall Mount Clock Kit Operations Guide 930283I
Part #011153*, RAL 9002, Gray White, Standard
Part #011154, RAL 9003, Signal White, Optional
COPYRIGHT NOTICE:
© 2017, CyberData Corporation, ALL RIGHTS RESERVED.
This manual and related materials are the copyrighted property of CyberData Corporation. No part
of this manual or related materials may be reproduced or transmitted, in any form or by any means
(except for internal use by licensed customers), without prior express written permission of
CyberData Corporation. This manual, and the products, software, firmware, and/or hardware
described in this manual are the property of CyberData Corporation, provided under the terms of an
agreement between CyberData Corporation and recipient of this manual, and their use is subject to
that agreement and its terms.
DISCLAIMER: Except as expressly and specifically stated in a written agreement executed by
CyberData Corporation, CyberData Corporation makes no representation or warranty, express or
implied, including any warranty or merchantability or fitness for any purpose, with respect to this
manual or the products, software, firmware, and/or hardware described herein, and CyberData
Corporation assumes no liability for damages or claims resulting from any use of this manual or such
products, software, firmware, and/or hardware. CyberData Corporation reserves the right to make
changes, without notice, to this manual and to any such product, software, firmware, and/or
hardware.
OPEN SOURCE STATEMENT: Certain software components included in CyberData products are
subject to the GNU General Public License (GPL) and Lesser GNU General Public License (LGPL)
“open source” or “free software” licenses. Some of this Open Source Software may be owned by
third parties. Open Source Software is not subject to the terms and conditions of the CyberData
COPYRIGHT NOTICE or software licenses. Your right to copy, modify, and distribute any Open
Source Software is determined by the terms of the GPL, LGPL, or third party, according to who
licenses that software.
Software or firmware developed by CyberData that is unrelated to Open Source Software is
copyrighted by CyberData, subject to the terms of CyberData licenses, and may not be copied,
modified, reverse-engineered, or otherwise altered without explicit written permission from
CyberData Corporation.
TRADEMARK NOTICE: CyberData Corporation and the CyberData Corporation logos are
trademarks of CyberData Corporation. Other product names, trademarks, and service marks may
be the trademarks or registered trademarks of their respective owners.
Technical Support 

The IP Endpoint Company The fastest way to get technical support for your VoIP product is to
submit a VoIP Technical Support form at the following website:
http://support.cyberdata.net/

Phone: (831) 373-2601, Ext. 333
Email: support@cyberdata.net
Fax: (831) 373-4193
Company and product information is at www.cyberdata.net.
Operations Guide
930283I
CyberData Corporation
Revision Information
Revision 930283I was updated on October 3, 2017 and has the following changes:
Operations Guide
•
Updates Section 1.1, "How to Identify This Product".
•
Updates Appendix B, “Troubleshooting/Technical Support”.
930283I
CyberData Corporation
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades with one wider than the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or the third prong are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
13. Prior to installation, consult local building and electrical code requirements.
Warning
Electrical Hazard: This product should be installed by a licensed electrician
according to all local electrical and building codes.
GENERAL ALERT
Warning
Electrical Hazard: To prevent injury, this apparatus must be securely attached to
the floor/wall in accordance with the installation instructions.
GENERAL ALERT
Operations Guide
930283I
CyberData Corporation
Pictorial Alert Icons
GENERAL ALERT
General Alert
This pictoral alert indicates a potentially hazardous situation. This alert will be
followed by a hazard level heading and more specific information about the
hazard.
Ground
This pictoral alert indicates the Earth grounding connection point.
Hazard Levels
Danger: Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. This is limited to the most extreme situations.
Warning: Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
Caution: Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury. It may also alert users against unsafe practices.
Notice: Indicates a statement of company policy (that is, a safety policy or protection of property).
The safety guidelines for the equipment in this manual do not purport to address all the safety issues
of the equipment. It is the responsibility of the user to establish appropriate safety, ergonomic, and
health practices and determine the applicability of regulatory limitations prior to use. Potential safety
hazards are identified in this manual through the use of words Danger, Warning, and Caution, the
specific hazard type, and pictorial alert icons.
Operations Guide
930283I
CyberData Corporation
i
Contents
Chapter 1 Product Overview
1
1.1 How to Identify This Product .....................................................................................................1
1.2 Typical System Installation .......................................................................................................2
1.3 Product Features ......................................................................................................................3
1.4 Product Specifications ..............................................................................................................4
1.5 Dimensions ...............................................................................................................................5
Chapter 2 Installing the Wall Mount Clock Kit
6
2.1 Pre-Mounting Connections .......................................................................................................6
2.1.1 Install JP1 Prior to Clock Kit Installation .........................................................................6
2.1.2 Connecting the Clock to the Speaker .............................................................................7
2.1.3 Connecting Power to the Speaker ..................................................................................8
2.2 Verifying Operation of the Wall Mount Clock Kit ......................................................................9
2.2.1 Identifying the VoIP Clock Kit Jumpers ...........................................................................9
2.2.2 Power-Up Test ..............................................................................................................10
2.3 The Clock Kit Adapter Battery ................................................................................................11
2.3.1 JP1 Battery Enable Jumper for Real-Time Clock Operation ........................................11
2.3.2 Checking the Battery Power Level of the Wall Mount Clock Kit ...................................12
2.3.3 Replacing the Clock Kit Battery ....................................................................................12
2.3.4 Seconds Digits Blinking Fast ........................................................................................14
2.4 Mounting the Clock Kit Wall Mount Adapter ...........................................................................15
2.4.1 Parts List ......................................................................................................................15
2.4.2 Mounting ......................................................................................................................17
2.4.3 Uploading the Firmware ...............................................................................................18
2.4.4 Setting the Time on the Wall Mount Clock Kit .............................................................18
2.4.5 Confirm that the Speaker is Operational and Linked to the Network ..........................18
Appendix A Setting up a TFTP Server
19
A.1 Set up a TFTP Server ............................................................................................................19
A.1.1 In a LINUX Environment ..............................................................................................19
A.1.2 In a Windows Environment .........................................................................................19
Appendix B Troubleshooting/Technical Support
20
B.1 Frequently Asked Questions (FAQ) ........................................................................................20
B.2 Documentation .......................................................................................................................20
B.3 Contact Information ................................................................................................................21
B.4 Warranty and RMA Information ..............................................................................................21
Index
Operations Guide
22
930283I
CyberData Corporation
1
1 Product Overview
1.1 How to Identify This Product
To identify the Wall Mount Clock Kit , look for a model number label similar to the one shown 
in Figure 1-1. The model number on the label should be one of the following:
•
011153*, RAL 9002, Gray White, Standard Color
•
011154*, RAL 9003, Signal White, Optional Color
*Replaces 011023.
Figure 1-1. Model Number Label
www.cyberdata.net
Wall Mount Clock Kit, RAL 9004
011154A / 021035H
154000001
CAN ICES-3 (A)/NMB-3(A)
00:20:F7:03:83:CA
V 1.37
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 
(1) this device may not cause harmful interference, and (2) this device must accept any interference received, 
including interference that may cause undesired operation.
Model number
Note
Serial number begins with 154
The Cyberdata speaker is not included with this kit.
The large display characters are easily read and adjust for ambient light conditions. Time sync is
performed by NTP and a built-in real -time clock.
Power is supplied by the SIP Speaker from a single PoE connection.
Note
Prior to installation, create a plan for the locations of your Wall Mount Clock Kit.
General Alert
Consult local building and electrical code requirements prior to installation.
GENERAL ALERT
Operations Guide
930283I
CyberData Corporation
Product Overview 2
Typical System Installation
1.2 Typical System Installation
Figure 1-2 illustrates a typical installation for the Wall Mount Clock Kits.
Figure 1-2. Typical Installation
802.3af Compliant Ethernet Switch
Clock Kit
Operations Guide
Clock Kit
Clock Kit
930283I
IP Phone
IP PBX Server
CyberData Corporation
Product Overview 3
Product Features
1.3 Product Features
•
Easy wall or ceiling installation
•
Mounting kit included
•
Electrogalvinized steel construction
•
RoHS compliant
•
Keyhold for easy installation
•
Part number (Wall Mount): 011023
•
Part number (Flush Mount): 011024
•
Top and bottom cable channels
•
2.3-inch sized digits
•
12 or 24 hour format
•
NTP time source
•
Battery backed up real-time clock
•
Auto ambient light adjustment
•
PM LED
•
Two years warranty
Figure 1-3 shows the location of some of the features of the Wall Mount Clock Kit .
Figure 1-3. Feature Locations
CyberData SIP Speaker
Ambient Light Detector
PM LED
Operations Guide
930283I
CyberData Corporation
Product Overview 4
Product Specifications
1.4 Product Specifications
Category
Specification
Operating temperature
-30 to 55 C (-22 to 131 F)
Power Input (J1)
PoE 802.3af (as per IEEE 802.3af standard from a UL listed
limited power source)
44-57 VDC at 350mA
or Alternate Power Input
(Terminal Block J4)
10-20 VDC at 500mA
Time Source
NTP Server or battery backed-up real-time clock.
Battery life estimated to be approximately seven years.
Warranty
2 years limited
Dimensions
13.5” [343mm] x 11.8” [300mm] x 5.4” [137mm]
Weight
8.8 lbs. [4 kg]
Part number
011153*, RAL 9002, Gray White, Standard Color
011154, RAL 9003, Signal White, Optional Color
*Replaces 011023.
Operations Guide
930283I
CyberData Corporation
Product Overview 5
Dimensions
1.5 Dimensions
Figure 1-4 shows the dimensions for the Wall Mount Clock Kit .
Figure 1-4. Dimensions
8°
15.8 [402]
4.0 [102]
10.4 [264]
Dimensions are in Inches [Millimeter]
Operations Guide
930283I
CyberData Corporation
6
2 Installing the Wall Mount Clock Kit
2.1 Pre-Mounting Connections
2.1.1 Install JP1 Prior to Clock Kit Installation
To enable the battery for real-time clock operation, install a jumper on JP1 as shown in Figure 2-1.
Note
This jumper ensures that the clock will not lose the time setting in the event of a power
outage.
Figure 2-1. Jumper JP1
JP1
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 7
Pre-Mounting Connections
2.1.2 Connecting the Clock to the Speaker
Figure 2-2 illustrates how to connect the ribbon cable to the clock and the speaker.
Figure 2-2. Connecting the Clock to the Speaker
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 8
Pre-Mounting Connections
2.1.3 Connecting Power to the Speaker
Figure 2-3 and Figure 2-4 illustrates two possible ways to connect power to the speaker.
Note
Prior to mounting, you can route the Ethernet cable through the back or through the slots at
the top or bottom of the Wall Mount Clock Kit .
Figure 2-3. Connecting Power—PoE
to PoE Network
Figure 2-4. Connecting Power—Optional Power Injector
to Network
Ethernet
Optional Power Injuector
(CyberData P/N 010867A)
Device
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 9
Verifying Operation of the Wall Mount Clock Kit
2.2 Verifying Operation of the Wall Mount Clock Kit
2.2.1 Identifying the VoIP Clock Kit Jumpers
See Figure 2-5 and Table 2-1 to identify the jumper locations and functions.
Figure 2-5. Jumper Locations
JP3
JP4
JP5
JP1 JP2
Table 2-1. Jumper Functions
Jumper
Function
JP1
Battery - Connect
JP2
Manufacturing - Open
JP3
Manufacturing - Open
JP4
Manufacturing - Open
JP5
Manufacturing - Open
Note
Operations Guide
Prior to installing the Clock Kit, make sure that JP1 is installed. This powers the Real Time
Clock from the battery. If you do not, the clock will loose it's time when the power is
disconnected.
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 10
Verifying Operation of the Wall Mount Clock Kit
2.2.2 Power-Up Test
To perform a power up test,
1. Connect power to the speaker as shown in Figure 2-6.
Note
Prior to mounting, you can route the Ethernet cable through the back or through the slots at
the top or bottom of the Wall Mount Clock Kit .
Figure 2-6. Connecting Power
to Network
Ethernet
Optional Power Injuector
(CyberData P/N 010867A)
Device
2. After connecting power, you will see one of the boot-up messages indicated in Table 2-2.
Table 2-2. Clock Kit Boot-Up Messages
Message
Meaning
Action
8888
Normal start-up
message.
None.
Time error
This would normally occur at manufacturing first Power On, or at subsequent Power On if
the battery was low or dead. If it occurs more frequently, contact CyberData support.
E01
Note: On the Clock Kit display, you will see the numbers 8888 for one second before
displaying the time that is in memory.
Note: If there is an Invalid Time Error, then you will see E 01 on the display for one second
and the time will be reset to 00:00.
E02
Low battery
Replace the battery. See Section 2.3.3, "Replacing the Clock Kit Battery".
Note: If the Clock Kit battery is low, then at power up, you will see E 02 on the display for
one second before displaying the time that is in memory.
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 11
The Clock Kit Adapter Battery
2.3 The Clock Kit Adapter Battery
2.3.1 JP1 Battery Enable Jumper for Real-Time Clock Operation
To enable the battery for real-time clock operation, install a jumper on JP1 as shown in Figure 2-7.
Note
This jumper ensures that the clock will not lose the time setting in the event of a power
outage.
Figure 2-7. Jumper JP1
JP1
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 12
The Clock Kit Adapter Battery
2.3.2 Checking the Battery Power Level of the Wall Mount Clock Kit
To check the battery power level of the Wall Mount Clock Kit ,
1. Disconnect and reconnect power to the VoIP Speaker.
2. On the Clock Kit display, you will see the numbers 8888 for one second and then one of the
following will occur:
•
If the battery power level is good, then the Clock Kit display will resume showing the time that is
in memory.
•
If the Clock Kit battery is low, then you will see E 02 on the display for one second before
displaying the time that is in memory.
Note
If there is an Invalid Time Error, then you will see E 01 on the display for one second and
the time will be reset to 00:00.
2.3.3 Replacing the Clock Kit Battery
2.3.3.1 Battery Type
You should use a Lithium-Ion size 2/3A type battery with minimum 1000 mA-hr rating for the Wall
Mount Clock Kit .
Acceptable replacements:
•
Panasonic CR123A
•
Duracell DL2/3A
•
Sanyo CR17335SE
2.3.3.2 Battery Life
The Lithium-Ion CR-123 battery in the Wall Mount Clock Kit should last for approximately seven
years.
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 13
The Clock Kit Adapter Battery
2.3.3.3 Replacing the Battery
Figure 2-8 and Figure 2-9 illustrates how to locate and replace the Clock Kit battery.
Figure 2-8. Clock Kit Battery Location
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 14
The Clock Kit Adapter Battery
Figure 2-9. Clock Kit Battery Replacement
Positive (+)
2.3.4 Seconds Digits Blinking Fast
If the seconds digits on the Clock Kit display are blinking fast, then this means that the speaker has
not communicated for more than one hour.
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 15
Mounting the Clock Kit Wall Mount Adapter
2.4 Mounting the Clock Kit Wall Mount Adapter
2.4.1 Parts List
Before you install the clock kit wall mount adapter, make sure that you have received all of the parts.
Refer to Table 2-3.
Table 2-3. Drywall Mounting Kita
Operations Guide
Quantity
Part Name
1
Wall Mount Adapter and Backplate
1
Placemat containing template for wall mount
adapter and screw holesbc
4
Plastic Ribbed Anchors
4
#8 Sheet Metal Screws
4
#6-32 x 0.25-inch FlatHead, 100-degrees
Countersunk Machine Screw
3
#8-32 x 0.5 inch Non-Drive Button Head
Machine Screw
930283I
Illustration
CyberData Corporation
Installing the Wall Mount Clock Kit 16
Mounting the Clock Kit Wall Mount Adapter
Table 2-3. Drywall Mounting Kita(continued)
Quantity
Part Name
3
#8-32 KEP Nut
Illustration
a.The drywall mounting kit is part of the accessory kit.
b.The ceiling speaker wall-mounted adapter screws will be included in the ceiling speaker kit.
c.The installation template for the Wall Mount Adapter is located on the Installation Quick Reference Guide that is included in the packaging with each speaker.
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 17
Mounting the Clock Kit Wall Mount Adapter
2.4.2 Mounting
See Figure 2-10 to mount a Clock Kit Wall Mount Adapter.
Figure 2-10. Clock Kit Wall Mount Adapter Installation
Step 2
Hang Clock Kit Backplate to Wall
Secure it with Mounting Screws
P/N: 121001
Prepare Hole for Cable Access and
Drill Holes for Plastic Ribbed Anchors
Step 1
Step 6
Align Enclosure with Backplate
Secure it with Mounting Screws on Both Sides
Grounding
Lug
Ground Cable
Nut
Cable Entry
Step 3
Run Network Cable Through Wall & Backplate
or Through Cable Entry on Top
Step 4
Align Speaker Assembly with
Clock Kit Enclosure
Secure it with Non-Drive Button Head
Screws and Nuts
P/N: 121009 [RAL 9002]
P/N: 121010 [RAL 9003]
Step 5
Connect Network Cable to Speaker
Connect Clock (Ribbon Cable) to Speaker
Operations Guide
930283I
CyberData Corporation
Installing the Wall Mount Clock Kit 18
Mounting the Clock Kit Wall Mount Adapter
2.4.3 Uploading the Firmware
To upload the firmware, please see the SIP Speaker Operations Guide at the following website
address:
http://www.cyberdata.net/voip/011393/
2.4.4 Setting the Time on the Wall Mount Clock Kit
To set the time on the Clock Kit Adapter, please see the SIP Speaker Operations Guide at the
following website address:
http://www.cyberdata.net/voip/011393/
2.4.5 Confirm that the Speaker is Operational and Linked to the Network
To confirm that the Speaker is operational and linked to the network, please see the SIP Speaker
Operations Guide at the following website address:
http://www.cyberdata.net/voip/011393/
Operations Guide
930283I
CyberData Corporation
19
Appendix A: Setting up a TFTP Server
A.1 Set up a TFTP Server
Autoprovisioning requires a TFTP server for hosting the configuration file.
A.1.1 In a LINUX Environment
To set up a TFTP server on LINUX:
1. Create a directory dedicated to the TFTP server, and move the files to be uploaded to that
directory.
2. Run the following command where /tftpboot/ is the path to the directory you created in
Step 1: the directory that contains the files to be uploaded. For example:
in.tftpd -l -s /tftpboot/your_directory_name
A.1.2 In a Windows Environment
You can find several options online for setting up a Windows TFTP server. This example explains
how to use the Solarwinds freeware TFTP server, which you can download from the following
website address:
http://www.cyberdata.net/assets/common/Solarwinds.zip
To set up a TFTP server on Windows:
1. Install and start the software.
2. Select File/Configure/Security tab/Transmit Only.
3. Make a note of the default directory name, and then move the firmware files to be uploaded to
that directory.
Operations Guide
930283I
CyberData Corporation
20
Appendix B: Troubleshooting/Technical
Support
B.1 Frequently Asked Questions (FAQ)
To see a list of frequently asked questions for your product, click on the FAQs tab at the following
webpage:
http://www.cyberdata.net/voip/011153/
B.2 Documentation
The documentation for this product is released in an English language version only.
To download PDF copies of CyberData product documentation, click on the Downloads tab at the
following webpage:
http://www.cyberdata.net/voip/011153/
Operations Guide
930283I
CyberData Corporation
21
Contact Information
B.3 Contact Information
Contact
CyberData Corporation
3 Justin Court
Monterey, CA 93940 USA
www.CyberData.net
Phone: 800-CYBERDATA (800-292-3732)
Fax: 831-373-4193
Sales
Sales 831-373-2601, Extension 334
Technical 
Support
The fastest way to get technical support for your VoIP product is to submit a VoIP Technical
Support form at the following website:
http://support.cyberdata.net/
The Support Form initiates a ticket which CyberData uses for tracking customer requests. Most
importantly, the Support Form tells us which PBX system and software version that you are
using, the make and model of the switch, and other important information. This information is
essential for troubleshooting. Please also include as much detail as possible in the Comments
section of the Support Form.
Phone: (831) 373-2601, Extension 333
B.4 Warranty and RMA Information
The most recent warranty and RMA information is available at the following website address:
http://support.cyberdata.net/
Operations Guide
930283I
CyberData Corporation
22
Index
A
H
alternate power input (terminal block J4) 4
ambient operating temperature 4
autoprovisioning
setting up a TFTP server 19
hazard levels 5
I
identifying the product 1
identifying your product 1
installation 6
installation, typical speaker system 2
B
battery 11
checking the power level 12
JP1 jumper 11
location 12
replacing 12, 13
battery life 12
battery power level 12
battery type 12
J
JP1 6, 11
JP1 battery enable jumper 11
jumper functions 9
jumper locations 9
C
clock
connecting the clock to the speaker 7
connections
connecting the clock to the speaker 7
pre-mounting 6
connector locations 9
contact information 21
contact information for CyberData 21
cover
removing the connection cover from the speaker 6
CyberData contact information 21
L
LED
seconds digits blinking fast 14
Linux, setting up a TFTP server on 19
M
mounting the clock kit wall mount adapter 15
D
N
dimensions 4, 5
display
seconds digits blinking fast 14
network link activity, verifying 18
O
F
operation
verifying 9
overview 1
features 3
firmware 18
Operations Guide
930283I
CyberData Corporation
23
P
W
parts 15
parts list 15
power 8, 10
connecting power to the clock 8, 10
power input
alternate power input (terminal block J4) 4
power input (J1) 4
power requirement 4
product
parts list 15
product features 3
product identification 1
product overview
product features 3
product specifications 4
product specifications 4
warranty policy at CyberData 21
weight 4
Windows, setting up a TFTP server on 19
S
safety instructions 4
sales 21
seconds digits blinking fast 14
service 21
speaker
removing the connection cover 6
specifications 4
system installation 2
T
tech support 21
technical support, contact information 21
TFTP server 19
time 18
setting the time 18
U
uploading the firmware 18
V
verifying
network link and activity 18
power on to speaker 18
verifying operation 9
Operations Guide
930283I
CyberData Corporation
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising