CyberData 11113 Operation Manual
  1. Manuals
  2. Brands
  3. CyberData Manuals
  4. Intercom System
  5. 11113
  6. Operation manual

CyberData 11113 Operation Manual

Voip indoor intercom with keypad
Hide thumbs Also See for 11113:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Operating Manual
The IP Endpoint Company
VoIP Indoor Intercom with
Keypad
Operations Guide
Part #011113*, RAL 9003, Signal White Color
*Replaces #011078
Document Part #930323G
for Firmware Version 6.1.0
CyberData Corporation
3 Justin Court
Monterey, CA 93940
(831) 373-2601

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 11113 and is the answer not in the manual?

Questions and answers

Related Manuals for CyberData 11113

Summary of Contents for CyberData 11113

  • Page 1 The IP Endpoint Company VoIP Indoor Intercom with Keypad Operations Guide Part #011113*, RAL 9003, Signal White Color *Replaces #011078 Document Part #930323G for Firmware Version 6.1.0 CyberData Corporation 3 Justin Court Monterey, CA 93940 (831) 373-2601...
  • Page 2 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.

  • Page 3: Important Safety Instructions

    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 CyberData Corporation 930323G Operations Guide...
  • Page 4 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. CyberData Corporation 930323G Operations Guide...
  • Page 5 Revision 930323G, which was released on April 14, 2011, corresponds to firmware version 6.1.0, and has the following changes: • Updates Figure 2-11, "Device Configuration Page". • Updates Table 2-8, "Device Configuration Parameters" to add information about the Volume Boost setting. Operations Guide 930323G CyberData Corporation...

  • Page 6: Table Of Contents

    C.4.2 Warranty & RMA Returns Outside of the United States ............ 70 C.4.3 Spare in the Air Policy ......................70 C.4.4 Return and Restocking Policy ....................70 C.4.5 Warranty and RMA Returns Page ..................70 Index Operations Guide 930323G CyberData Corporation...

  • Page 7: Chapter 1 Product Overview

    To identify the VoIP Indoor Intercom with Keypad, look for a model number label similar to the one shown in Figure 1-1. The model number on the label should be 011113. Figure 1-1. Model Number Label WWW.CYBERDATA.NET VoIP INTERCOM WITH KEYPAD,...

  • Page 8: Typical System Installation

    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 930323G CyberData Corporation...

  • Page 9: Product Features

    One dry contact relay for auxiliary control ● Autoprovisioning ● Configurable audio files ● Night Ringer ● Three year warranty ● Peer-to-peer capable ● Door closure and tamper alert signal ● Optional Torx screws with driver kit Operations Guide 930323G CyberData Corporation...

  • Page 10: Supported Protocols

    G711, A-law and µ-law Regulatory Compliance FCC Class A, UL 60950 Dimensions 6.5” x 4.5” x 1.5” (H x W x D) Warranty 2 years limited Part Number 011113 Auxiliary Relay 1A at 30 VDC Operations Guide 930323G CyberData Corporation...

  • Page 11: Dimensions

    Product Overview How to Identify This Product 1.7 Dimensions Figure 1-3. Dimensions 1.6 [40] 6.5 [165] DIMENSIONS ARE IN INCHES [MILLIMETER] Operations Guide 930323G CyberData Corporation...

  • Page 12: Chapter 2 Installing The Voip Indoor Intercom With Keypad

    2.1 Parts List Table 2-1 illustrates the parts for the VoIP Indoor Intercom with Keypad. Table 2-1. Parts List Quantit Part Name Illustration VoIP Indoor Intercom with Keypad Assembly Installation Quick Reference Guide Mounting Accessory Kit Operations Guide 930323G CyberData Corporation...

  • Page 13: Voip Indoor Intercom With Keypad Setup

    3 = Normally Open Common 4 = Normally Open Contact Relay 5 = Door Sense Input (2A a 6 = Door Sense Ground Reference for c 3 = N 4 = N 5 = D 6 = D Operations Guide 930323G CyberData Corporation...

  • Page 14: Connecting A Device To The Auxiliary Relay

    Such As Mechanical Electric Door Strike Relay Strobe Light Output Contacts AC or DC rated Depending Upon Controlled Device Requirements AC or DC Power Source POWER SUPPLY MAX. 30 VDC @ 1A Auxiliary Relay Wiring Contacts Operations Guide 930323G CyberData Corporation...

  • Page 15: Identifying The Connector Locations And Functions

    Table 2-4 to identify the connector locations and functions. Figure 2-3. Connector Locations Table 2-2. Connector Functions Connector Function PoE Network Connection (RJ-45 ethernet) Terminal Block (see Figure 2-1) RTFM (see Section 2.2.6, "RTFM Switch") Operations Guide 930323G CyberData Corporation...
  • Page 16 Installing the VoIP Indoor Intercom with Keypad Parts List Figure 2-4. Connector Locations Table 2-3. Connector Functions Connector Function LED Interface Microphone Interface Speaker Interface Keypad Interface Operations Guide 930323G CyberData Corporation...
  • Page 17 Audio Enable Factory only Phy Mode Not Used Phy Mode Not Used Phy Mode Not Used JP10 Intrusion Disable Jumper Placing a jumper on JP10 will disable the intrusion detection circuit. JP11 Option Jumper Not used Operations Guide 930323G CyberData Corporation...

  • Page 18: Call Button And Indicator Light

    When you plug in the Ethernet cable or power supply: • The square, green Link light above the Ethernet port indicates that the network connection has been established (see Figure 2-7). The Link light changes color to confirm the auto-negotiated baud rate: Operations Guide 930323G CyberData Corporation...
  • Page 19 This light is yellow at 10 Mbps. • It is orange at 100 Mbps. 2.2.5.1 Verify Network Activity The square, yellow Activity light blinks when there is network activity. Figure 2-7. Network Connector Activity Link Operations Guide 930323G CyberData Corporation...

  • Page 20: Rtfm Switch

    The speaker will use DHCP to obtain the new IP address (DHCP-assigned address or Note default to 10.10.10.10 if a DHCP server is not present). Note Pressing and holding the RTFM switch for longer than five seconds will restore the speaker to the factory default settings. Operations Guide 930323G CyberData Corporation...

  • Page 21: Adjust The Volume

    The speaker will use DHCP to obtain the new IP address (DHCP-assigned address or default to 10.10.10.10 if a DHCP server is not present). Figure 2-9. RTFM Switch RTFM 2.2.7 Adjust the Volume You can adjust the volume through the Device Configuration Page. Operations Guide 930323G CyberData Corporation...

  • Page 22: Configure The Intercom Parameters

    Table 2-5. Factory Default Settings Parameter Factory Default Setting IP Addressing DHCP IP Address 10.10.10.10 Web Access Username admin Web Access Password admin Subnet Mask 255.0.0.0 Default Gateway 10.0.0.1 a. Default if there is not a DHCP server present. Operations Guide 930323G CyberData Corporation...

  • Page 23: Intercom Web

    Link to the Sensor Configuration page. Link to the Multicast Configuration page. Link to the Audio Configuration page. Link to the Event Configuration page. Link to the Autoprovisioning Configuration page. Link to the Update Firmware page. Operations Guide 930323G CyberData Corporation...

  • Page 24: Log In To The Configuration Home Page

    Make sure that the PC is on the same IP network as the Intercom. Note You may also download CyberData’s VoIP Discovery Utility program which allows you to easily find and configure the default web address of the CyberData VoIP products.
  • Page 25 Parts List 2. When prompted, use the following default Web Access Username and Web Access Password to access the Home Page (Figure 2-10): Web Access Username: admin Web Access Password: admin Figure 2-10. Home Page Operations Guide 930323G CyberData Corporation...
  • Page 26 Keypad Mode is Shows the current Keypad Mode status. Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Reboot button to reboot the system. Operations Guide 930323G CyberData Corporation...

  • Page 27: Configure The Device Parameters

    Installing the VoIP Indoor Intercom with Keypad Parts List 2.3.3 Configure the Device Parameters 1. Click the Device Configuration button to open the Device Configuration page. See Figure 2-11. Figure 2-11. Device Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 28 Click on the Test Audio button to do an audio test. When the Test Audio button is pressed, you will hear a voice message for testing the device audio quality and volume. Operations Guide 930323G CyberData Corporation...
  • Page 29 Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Reboot button to reboot the system. 3. After changing the parameters, click the Save button. Operations Guide 930323G CyberData Corporation...

  • Page 30: Configure The Network Parameters

    Installing the VoIP Indoor Intercom with Keypad Parts List 2.3.4 Configure the Network Parameters 1. Click the Networking button to open the Network Configuration page (Figure 2-12). Figure 2-12. Network Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 31 Intercom if appropriate. 4. Connect the Intercom to the target network. 5. From a system on the same network as the Intercom, open a browser with the new IP address of the Intercom. Operations Guide 930323G CyberData Corporation...

  • Page 32: Configure The Sip Parameters

    Parts List 2.3.5 Configure the SIP Parameters 1. Click SIP Config to open the SIP Configuration page (Figure 2-13). Note For specific server configurations, go to the following website address: http://www.cyberdata.net/support/server/index.html Figure 2-13. SIP Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 33 Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Reboot button to reboot the system. 3. After changing the parameters, click Save Settings. Operations Guide 930323G CyberData Corporation...
  • Page 34 The delayed DTMF functionality is available in the Point-to-Point Mode. Note Note Establishing point-to-point SiP calls may not work with all phones. Figure 2-14. SIP Configuration Page Set to Point-to-Point Mode Intercom is set to NOT register with a SiP server Operations Guide 930323G CyberData Corporation...

  • Page 35: Configure The Button Parameters

    Installing the VoIP Indoor Intercom with Keypad Parts List 2.3.6 Configure the Button Parameters 1. Click the Button Config button to open the Button Configuration page. See Figure 2-15. Figure 2-15. Button Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 36 Installing the VoIP Indoor Intercom with Keypad Parts List Figure 2-16. Button Configuration Page (continued) Operations Guide 930323G CyberData Corporation...
  • Page 37 Keypad (0 through 9, *, and #) Enter the desired dial-out extension number (64 character limit). Note: For information about dial-out extension strings and DTMF tones, see Section 2.3.6.1, "Dial Out Extension Strings and DTMF Tones (using rfc2833)". Operations Guide 930323G CyberData Corporation...
  • Page 38 You can still use the # key but it is not necessary. For information about how to instantly triggering a dialout call or security code, see Section 2.3.6.2, "Triggering a Dialout Call or Security Code". Operations Guide 930323G CyberData Corporation...
  • Page 39 Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Reboot button to reboot the system. 3. After changing the parameters, click the Save button. Operations Guide 930323G CyberData Corporation...
  • Page 40 Allow Telephone Dialout Option Disabled (in security mode with default security settings) Input Resulting Action Dialing 1234560 The device will activate the relay for Security Code 0 for 6 seconds. (and waiting for several seconds) Operations Guide 930323G CyberData Corporation...

  • Page 41: Configure The Night Ringer Parameters

    The Nightringer is designed to be used in buildings where calls made after hours are directed to a ring group. 1. Click on the Nightringer button to open the Nightringer Configuration page. See Figure 2-17. Figure 2-17. Nightringer Configuration Setup Operations Guide 930323G CyberData Corporation...
  • Page 42 Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Reboot button to reboot the system. 3. After changing the parameters, click on the Save button. Operations Guide 930323G CyberData Corporation...

  • Page 43: Configure The Sensor Parameters

    • Loop an audio file out of the Intercom speaker until the sensor is deactivated • Call a preset extension and play a pre-recorded audio file (once) Note Calling a preset extension can be set up as a point-to-point call, but currently can't send delayed DTMF tones. Operations Guide 930323G CyberData Corporation...
  • Page 44 Installing the VoIP Indoor Intercom with Keypad Parts List 1. Click Sensor Config to open the Sensor Configuration page (Figure 2-18). Figure 2-18. Sensor Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 45 Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Reboot button to reboot the system. 3. After changing the parameters, click Save Settings. Operations Guide 930323G CyberData Corporation...

  • Page 46: Configure The Multicast Parameters

    Multicast configuration provides the ability to join up to 10 paging zones. A paging zone can consist of one, or many, CyberData multicast group-enabled devices. There is no limit to how many devices can be in a given paging zone. Each multicast group is defined by a multicast address and port number.
  • Page 47 SIP calls, multicast streams, ring tones, ringback tones, and nightring tones are all prioritized. Ringtones and Ringtones all play at the same priority level. This means that it is possible to have a nightring tone Nightringtones and a normal ringtone playing at the same time. Operations Guide 930323G CyberData Corporation...

  • Page 48: Configure The Audio Parameters

    The Audio Configuration page is used to add custom audio to the board. User uploaded audio will take precedence over the audio files shipped with the Intercom. 1. Click Audio Config to open the Audio Configuration page (Figure 2-20). Figure 2-20. Audio Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 49 Installing the VoIP Indoor Intercom with Keypad Parts List Figure 2-21. Audio Configuration Page (continued) Operations Guide 930323G CyberData Corporation...
  • Page 50 Installing the VoIP Indoor Intercom with Keypad Parts List Figure 2-22. Audio Configuration Page (continued) Operations Guide 930323G CyberData Corporation...
  • Page 51 '9' corresponds to the spoken word “nine.” Corresponds to the spoken word “dot.” (24 character limit) Audiotest Corresponds to the message “This is the CyberData IP speaker test message...” (24 character limit) Pagetone Corresponds to a simple tone that is unused by default (24 character limit).
  • Page 52 The Save button will download a new user audio file to the board once you've selected the file by using the Browse button. The Save button will delete any pre-existing user- uploaded audio files. Operations Guide 930323G CyberData Corporation...
  • Page 53 RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 8000 Hz You can use the free utility Audacity to convert audio files into this format. See Figure 2-23 through Figure 2-25. Figure 2-23. Audacity 1 Figure 2-24. Audacity 2 Operations Guide 930323G CyberData Corporation...
  • Page 54 Parts List When you export an audio file with Audacity, save the output as: • WAV (Microsoft) signed 16 bit PCM. Figure 2-25. WAV (Microsoft) signed 16 bit PCM WAV (Microsoft) signed 16 bit PCM Operations Guide 930323G CyberData Corporation...

  • Page 55: Configure The Event Parameters

    Click the Event Config button to open the Event Configuration page. The Event Configuration page specifies a remote server that can be used to receive HTTP POST events when actions take place on the board. Figure 2-26. Event Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 56 Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Test Event button to test an event. Click on the Reboot button to reboot the system. Operations Guide 930323G CyberData Corporation...
  • Page 57 Here are example packets for every event: POST xmlparse_engine HTTP/1.1 Host: 10.0.3.79 User-Agent: CyberData/1.0.0 Content-Length: 197 Content-Type: application/x-www-form-urlencoded <?xml version="1.0" encoding="ISO-8859-1"?> <cyberdata NAME='CyberData VoIP Device' MAC='0020f70015b6'> <event>POWERON</event> </cyberdata> POST xmlparse_engine HTTP/1.1 Host: 10.0.3.79 User-Agent: CyberData/1.0.0 Content-Length: 199 Content-Type: application/x-www-form-urlencoded <?xml version="1.0"...
  • Page 58 Installing the VoIP Indoor Intercom with Keypad Parts List User-Agent: CyberData/1.0.0 Content-Length: 205 Content-Type: application/x-www-form-urlencoded <?xml version="1.0" encoding="ISO-8859-1"?> <cyberdata NAME='CyberData VoIP Device' MAC='0020f70015b6'> <event>CALL_TERMINATED</event> </cyberdata> POST xmlparse_engine HTTP/1.1 Host: 10.0.3.79 User-Agent: CyberData/1.0.0 Content-Length: 197 Content-Type: application/x-www-form-urlencoded <?xml version="1.0" encoding="ISO-8859-1"?> <cyberdata NAME='CyberData VoIP Device' MAC='0020f70015b6'>...
  • Page 59 Installing the VoIP Indoor Intercom with Keypad Parts List User-Agent: CyberData/1.0.0 Content-Length: 234 Content-Type: application/x-www-form-urlencoded <?xml version="1.0" encoding="ISO-8859-1"?> <cyberdata NAME='CyberData VoIP Device' MAC='0020f70015b6'> <event>RELAY_DEACTIVATED</event> </cyberdata> POST xmlparse_engine HTTP/1.1 Host: 10.0.3.79 User-Agent: CyberData/1.0.0 Content-Length: 234 Content-Type: application/x-www-form-urlencoded <?xml version="1.0" encoding="ISO-8859-1"?> <cyberdata NAME='CyberData VoIP Device' MAC='0020f70015b6'>...

  • Page 60: Configure The Autoprovisioning Parameters

    Installing the VoIP Indoor Intercom with Keypad Parts List 2.3.12 Configure the Autoprovisioning Parameters 1. Click the Autoprovisioning button to open the Autoprovisioning Configuration page. Figure 2-27. Figure 2-27. Autoprovisioning Configuration Page Operations Guide 930323G CyberData Corporation...
  • Page 61 Click the Save button to save your configuration settings. Note: You need to reboot for changes to take effect. Click on the Reboot button to reboot the system. 3. After changing the parameters, click the Save button. Operations Guide 930323G CyberData Corporation...
  • Page 62 The board gets its autoprovisioning information from an XML-formatted file hosted from a TFTP server. CyberData will provide a template for this XML file and the user can modify it for their own use.
  • Page 63 3. The board downloads and writes the firmware file again. CyberData has timed a firmware upgrade at 140 seconds. Therefore, if you suspect the board is stuck in a loop, either remove or comment out the FirmwareVersion line in the XML file and let the board boot as it normally does.
  • Page 64 You can force a change to the audio files on the board by clicking Restore Default on the Audio Configuration page or by changing the autoprovisioning file with “default” set as the file name. Operations Guide 930323G CyberData Corporation...

  • Page 65: Upgrade The Firmware And Reboot The Intercom

    2. Unzip the Intercom version file. This file may contain the following: • Firmware file • Release notes 3. Log in to the Intercom home page as instructed in Section 2.3.2, "Log in to the Configuration Home Page". Operations Guide 930323G CyberData Corporation...
  • Page 66 Table 2-20. Firmware Upgrade Parameters Web Page Item Description File Upload Firmware Version Shows the current firmware version. Use the Browse button to navigate to the location of the Intercom firmware file that you want to upload. Operations Guide 930323G CyberData Corporation...
  • Page 67 Parts List Table 2-20. Firmware Upgrade Parameters (continued) Web Page Item Description Click on the Submit button to automatically upload the selected firmware and reboot the system. Click on the Reboot button to reboot the system. Operations Guide 930323G CyberData Corporation...

  • Page 68: Reboot The Intercom

    Section 2.3.2, "Log in to the Configuration Home Page". 1. Click Update Firmware to open the Upgrade Firmware page (Figure 2-29). Figure 2-29. Reboot System Section Reboot 2. Click Reboot. A normal restart will occur. Operations Guide 930323G CyberData Corporation...

  • Page 69: Command Interface

    --user admin --password admin --post-data "test_audio=yes" "http://10.0.3.78/cgi-bin/command.cgi" > /dev/null To cause the Intercom to speak wget --user admin --password admin --post-data it's ip address "speak_ip_address=yes" "http://10.0.3.78/cgi-bin/command.cgi" > /dev/null a.Type and enter all of each http POST command on one line. Operations Guide 930323G CyberData Corporation...

  • Page 70: Appendix A Mounting The Indoor Voip Indoor Intercom With Keypad

    #6 Plastic Anchor Table A-2. Gang Box Mounting Components (Part of the Accessory Kit) Quantity Part Name Illustration #6 x 3/8-inch Pan Head Phillips Machine Screw a.Only two screws are needed for a 1-Gang Box. Operations Guide 930323G CyberData Corporation...
  • Page 71 Figure A-1. Wall Mounting Option Backplate Can Be Rotated Hole in Wall to Mount on Either Sides (for Network Cable) Pre-Drilled Hole (4 Places) Sheet Metal Screw & Plastic Anchor (4 Pieces Each) Machine Screw (4 Pieces) Operations Guide 930323G CyberData Corporation...
  • Page 72 Figure A-2. Gang Box Mounting Single Gang or 2 Gang Box (Not Provided) 611469B Can Be Rotated to Mount on Either Sides Drywall or Wall Cutout Mounting Screw for Gang Box (4 Pieces) Machine Screw (4 Pieces) Operations Guide 930323G CyberData Corporation...

  • Page 73: Appendix B Setting Up A Tftp Server

    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 930323G CyberData Corporation...

  • Page 74: Appendix C Troubleshooting/Technical Support

    2. Go to the support page for your product, and click on the FAQs tab. C.2 Documentation The documentation for this product is released in an English language version only. You can download PDF copies of CyberData product documentation by doing the following: 1. Go to the following URL: http://www.cyberdata.net/products/voip/digitalanalog/intercomkeypad/docs.html 2.

  • Page 75: Contact Information

    3 Justin Court Monterey, CA 93940 Attention: RMA "your RMA number" RMA Status Form If you need to inquire about the repair status of your product(s), please use the CyberData RMA Status form at the following web address: http://www.cyberdata.net/support/rmastatus.html C.4 Warranty CyberData warrants its product against defects in material or workmanship for a period of two years from the date of purchase.

  • Page 76: Warranty & Rma Returns Within The United States

    C.4.3 Spare in the Air Policy CyberData now offers a Spare in the Air no wait policy for warranty returns within the United States and Canada. More information about the Spare in the Air policy is available at the following web address: http://www.cyberdata.net/support/warranty/spareintheair.html...

  • Page 77: Index

    9, 10, 11 activate relay (door sensor) 39 contact information 69 activate relay (intrusion sensor) 39 contact information for CyberData 69 address, configuration login 18 current network settings 25 allow telephone dialout option 33 CyberData contact information 69 alternative power input 4, 7 announcing a intercom’s IP address 14...
  • Page 78 13 indicator light 12 network parameters 24 installation, typical intercom system 2 nightring tones 41 intercom configuration nightringer settings 36 default IP settings 16 intercom configuration page configurable parameters 27, 60 intrusion sensor 37, 39 Operations Guide 930323G CyberData Corporation...
  • Page 79 Stored Network Settings 25 subnet mask 16, 25 supported protocols 4 reboot 61, 62 regulatory compliance 4 remote SIP port 27 reset test function management switch 14 resetting the IP address to the default 64 Operations Guide 930323G CyberData Corporation...
  • Page 80 & RMA returns outside of the United States 70 warranty & RMA returns within the United States 70 warranty and RMA returns page 70 warranty policy at CyberData 69 web access password 16 web access username 16 web configuration log in address 18...

This manual is also suitable for:

Ral 9003

Table of Contents