FLIR PT series Installation Manual

Installation Manual
PT-Series
© 2013 FLIR Commercial Systems, Inc. All rights reserved worldwide. No parts of this manual, in whole or in part, may be copied, photocopied, translated, or transmitted to any electronic medium or machine readable form without the prior written permission of FLIR Commercial Systems, Inc.
This product is protected by patents, design patents, patents pending, or design patents pending. The contents of this document are subject to change.
FLIR Commercial Systems, Inc.
70 Castilian Drive Goleta, CA 93117 Phone: 888.747.FLIR (888.747.3547) International: +1.805.964.9797 http://www.flir.com
Important Instructions and Notices to the User:
Modification of this device without the express authorization of FLIR Commercial Systems, Inc. may void the user’s authority under FCC rules to operate this device.
Modification of this device without the express authorization of FLIR Commercial Systems, Inc., may void the user’s authority under the FCC Rules to operate this device.
Note 1: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Shielded cables must be used to connect this device to other devices.
Note 2: If ferrites are supplied with this equipment, the equipment was tested for compliance with the FCC limits for a Class A digital device using power cables with the ferrites installed. When connecting one or two power cables to the equipment, the supplied ferrites must be used with this equipment.
Industry Canada Notice: This Class B digital apparatus complies with Canadian ICES-003.
Avis d’Industrie Canada: Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
Proper Disposal of Electrical and Electronic Equipment (EEE)
The European Union (EU) has enacted Waste Electrical and Electronic Equipment Directive 2002/ 96/EC (WEEE), which aims to prevent EEE waste from arising; to encourage reuse, recycling, and recovery of EEE waste; and to promote environmental responsibility.
In accordance with these regulations, all EEE products labeled with the “crossed out wheeled bin” either on the product itself or in the product literature must not be disposed of in regular rubbish bins, mixed with regular household or other commercial waste, or by other regular municipal waste
collection means. Instead, and in order to prevent possible harm to the environment or human health, all EEE products (including any cables that came with the product) should be responsibly discarded or recycled.
To identify a responsible disposal method where you live, please contact your local waste collection or recycling service, your original place of purchase or product supplier, or the responsible government authority in your area. Business users should contact their supplier or refer to their purchase contract.
427-0032-00-12, Version 170 Mar 2014 ii
Table of Contents
Ta b l e o f C on te nt s
PT-Series Camera Installation
1.1 Warnings and Cautions 1-1
1.2 References 1-1
1.3 Camera Overview 1-1
1.4 Installation Overview 1-2
1.4.1 Camera Connection Options 1-2
1.4.2 Supplied Components 1-3
1.4.3 Required Components 1-3
1.5 Location Considerations 1-3
1.5.1 Bench Testing 1-3
1.5.2 Prior to Cutting/Drilling Holes 1-4
1.5.3 Camera Mounting 1-4
1.5.4 Removing the Back Cover 1-5
1.5.5 Cable Gland Sealing 1-5
1.5.6 Cable Glands and Spare Parts Kit 1-5
1.5.7 Cable Gland Seal Inserts 1-6
1.6 Camera Connections 1-6
1.6.1 Connecting power 1-6
1.6.2 Video Connections 1-6
1.6.3 Ethernet Connection 1-8
1.6.4 Serial Connection 1-8
1.7 Serial Communications Overview 1-8
1.8 Serial Communications Settings - Hardware DIP Switches 1-8
1.9 PT-Series Camera Specifications 1-11
Basic Operation and Configuration
2.1 Nexus IP Camera 2-1
2.1.1 Nexus Server Configuration 2-1
2.1.2 Serial and/or IP Communications 2-1
2.1.3 Serial Communications 2-2
2.1.4 Ethernet Communications 2-2
2.2 Basic Test and Configuration Steps 2-3
2.3 Camera Bench Test 2-3
2.4 Web Browser Interface 2-4
2.4.1 Log into the Camera Web Page 2-4
2.4.2 Camera Control and Status 2-5
2.4.3 Web Control Panel 2-6
2.4.4 Help 2-8
2.4.5 Log Off 2-8
2.5 Bench Test Using FSM 2-8
2.5.1 Running FSM 2-8
2.6 Basic Camera Configuration 2-11
2.6.1 Expert and Admin Accounts 2-11
2.6.2 Maintenance Menu 2-12
2.6.3 LAN Settings 2-13
2.6.4 Services (Date and Time Settings) 2-14
427-0032-00-12, Version 170 Mar 2014 iii
Table of Contents
2.6.5 Security Settings 2-15
2.6.6 Configuration File 2-16
2.7 Thermal Imaging Overview 2-17
2.8 Troubleshooting Tips 2-19
2.9 General Errors 2-22
2.10 Restoring the Factory Settings 2-24
2.11 Setting the IP address on a Windows PC 2-25
Serial Address: Decimal To Binary Conversion
3.1 Address Conversion Table 3-1
427-0032-00-12, Version 170 Mar 2014 iv
1 PT-Series Camera Installation
This manual describes the installation of the PT-Series cameras. If you need help during the installation process, please call to speak with our support experts (877-773-3547). All installers and integrators are encouraged to take advantage of the training offered by FLIR; visit http://www.flir.com/training for more information.
This manual includes the following topics:
Installation Overview
Mounting the camera and its components
Connecting the electronics
Bench testing the camera
Basic configuration and operation of the camera
Camera Specifications
For safety, and to achieve the highest levels of performance from the PT-Series camera system, always follow the warnings and cautions in this manual when handling and operating the camera system.
1.1 Warnings and Cautions
Warning!
If mounting the PT-Series camera on a pole, tower or any elevated location, use industry standard safe practices to avoid injuries.
Caution!
Except as described in this manual, do not open the PT-Series camera for any reason. Disassembly of the camera (including removal of the cover) can cause permanent damage and will void the warranty.
Be careful not to leave fingerprints on the PT-Series camera’s infrared optics.
The PT-Series camera requires a power supply of 24 Volts. Operating the camera outside of the specified input voltage range or the specified operating temperature range can cause permanent damage.
1.2 References
PT-SERIES Camera Mechanical Interface Control Document (ICD) (FLIR Doc # 427-0032-00-19)
Available on the documentation CD or from the FLIR website, provides further details regarding mechanical dimensions and mounting for the PT-Series camera.
Nexus IP Camera Configuration Guide (FLIR Doc # 427-0030-00-28)
Available on the documentation CD or from the FLIR website, provides further details on using a web browser to configure the PT-Series camera.
1.3 Camera Overview
427-0032-00-12, Version 170 Mar 2014 1-1
1 PT-Series Camera Installation
Figure 1-1: PT-Series Camera
Shipping plugs only ­Remove before installing
The PT-Series camera is both an analog and an IP camera. The video from the camera can be viewed over a traditional analog video network or it can be viewed by streaming it over an IP network using MPEG-4, M-JPEG and H.264 encoding. Analog video will require a connection to a video monitor or an analog matrix/switch. The IP video will require a connection to an Ethernet network switch and a computer with the appropriate software for viewing the video stream.
1.4 Installation Overview
The PT-Series Camera is a multi-sensor camera system on a pan/tilt platform. Combinations of an infrared camera and a visible-light video camera are intended for outdoor installations.
The PT-Series camera is intended to be mounted on a medium-duty fixed pedestal mount or wall mount commonly used in the CCTV industry. Cables will exit from the back of the camera housing. The mount must support up to 45 lbs. (20 KG). The camera can be controlled through either serial or IP communications. The camera operates on 21 - 30 VAC or 21 - 30 VDC. In order to access the electrical connections and install the cables, it is necessary to temporarily remove the back cover of the camera housing.
1.4.1 Camera Connection Options
Camera connections are made through water-tight cable gland seals on the rear of the camera. Refer to section 1.5.5 “Cable Gland Sealing” on page 1-5 to ensure the glands are used correctly and the connections are properly sealed.
The camera can be powered with a conventional power supply, using 21 - 30 VAC or 21 - 30 VDC.
The PT-Series Camera can produce analog or digital (IP) video output (or both). Analog video will require at least one connection to a video monitor or an analog video matrix switch. In most analog installations, two video connections will be used—one for the thermal camera video, and one for the daylight camera video. The camera provides two BNC connectors for these video channels.
An Ethernet connection is provided for IP video streaming and for command and control communications (pan/tilt/zoom/etc.). A web browser can be used for camera configuration and maintenance (software/firmware updates). On some models, a web browser can also be used for IP video streaming and for command and control.
For analog installations that are not using Ethernet/IP, a serial cable (RS232 or RS422) can optionally be connected and used for command and control communications, supporting either Pelco D or
427-0032-00-12, Version 170 Mar 2014 1-2
1 PT-Series Camera Installation
Bosch protocols. In installations using analog video and serial communications, it is recommended an Ethernet cable should also be installed for camera configuration, operation, and troubleshooting.
For installations where the camera is mounted on a tower or pole or other location that may be difficult to access, it is recommended the Ethernet connection should be installed from the camera down to ground level at a minimum, to allow easier access.
1.4.2 Supplied Components
The PT-Series camera includes these standard components:
Multi-sensor Pan/Tilt Camera Unit
Cable Glands and Spare Parts kit
FLIR Sensors Manager CD
PT-Series Camera Documentation Package
1.4.3 Required Components
The installer will need to supply the following items; the lengths are specific to the installation.
Electrical wire, for system power; up to 100’ (3-conductor, shielded, gauge determined by cable length and supply voltage. Refer to Figure 1-3 on page 1-7 for additional information)
Camera grounding strap
Coaxial RG59U video cables (BNC connector at the camera end) for analog video
Shielded Category 6 Ethernet cable for control, streaming video, and for software upgrades.
Optional serial cable for serial communications.
Miscellaneous electrical hardware, camera mount (with stainless steel washers and bolts), connectors, and tools
1.5 Location Considerations
The camera will require connections for power, communications (IP Ethernet, and/or serial communications), and video.
Important Note
Install all cameras with an easily accessible Ethernet connection to support future software upgrades.
Ensure that cable distances do not exceed the specifications and that cables adhere to all local and Industry Standards, Codes, and Best Practices.
Important Note
If the camera is to be mounted on a pole or tower or other hard-to-reach location, connect and operate the camera as a bench test at ground level prior to mounting the camera in its final location.
1.5.1 Bench Testing
Connect the power, video, serial, and Ethernet connections and confirm that the video is displayed on a monitor when the power is turned on. Confirm the camera can be controlled by moving it (pan/tilt).
427-0032-00-12, Version 170 Mar 2014 1-3
1 PT-Series Camera Installation
Not to scale
Figure 1-2: PT-Series Camera Mounting
0
0.28
All dimensions in inches
0
2X 3.19 ± .02
2X 3.19 ± .02
2X 2.72 ± .02
2X 2.72 ± .02
4X Ø.354 THRU
Pan Axis
Tilt Axis
For configuration and basic setup information using the onboard web server, refer to Basic Operation and Configuration on page 2-1.
1.5.2 Prior to Cutting/Drilling Holes
When selecting a mounting location for the PT-Series camera, consider cable lengths and cable routing. Ensure the cables are long enough given the proposed mounting locations and cable routing requirements.
Use cables that have sufficient dimensions to ensure safety (for power cables) and adequate signal strength (for video and communications).
1.5.3 Camera Mounting
Caution!
When lifting the PT-Series camera use the camera body and base, not the tubes.
PT-Series cameras must be mounted upright on top of the mounting surface, with the base below the camera. The unit should not be hung upside down.
Once the mounting location has been selected, verify both sides of the mounting surface are accessible.
Use a thread locking compound such as Loctite 242 or equivalent with all metal to metal threaded connections.
427-0032-00-12, Version 170 Mar 2014 1-4
1 PT-Series Camera Installation
Once the holes are drilled in the mounting surface, install four (4) stainless steel 5/16 or M8 bolts with stainless steel washers and lock washers through the base of the camera.
Always use stainless steel washers on the four camera base mounting holes, especially in locations where the camera base is exposed to a damp or salt environment. Ensure that the camera base finish remains intact when it is secured to its mount. Contact between the stainless steel fasteners and any bare aluminum will cause galvanic corrosion which will shorten the life of the installation.
1.5.4 Removing the Back Cover
Use a 2.5mm hex key to loosen the four captive screws and remove the cover, exposing the connections at the back of the camera. There is a grounding wire connected between the case and the back cover
Important Note
1.5.5 Cable Gland Sealing
Proper installation of cable sealing glands and use of appropriate elastomer inserts is critical to long term reliability. Cables enter the camera mount enclosure through liquid-tight compression glands. Be sure to insert the cables through the cable glands on the enclosure before terminating and connecting them (the connectors will not fit through the cable gland). Leave the gland nuts loosened until all cable installation has been completed. Inspect and install gland fittings in the back cover with suitable leak sealant and tighten to ensure water tight fittings. Teflon tape or pipe sealant (i.e. DuPont RectorSeal T™) are suitable for this purpose.
1.5.6 Cable Glands and Spare Parts Kit
The kit contains the two 3/4” cable glands and gland seal plugs required for non-conduit installations.
The remaining parts included in the kit are:
•a spare ground wire
a spare ground nut and lock washer
two spare power terminal block plugs
two spare serial port terminal block plugs
four spare F-Series back cover screws
four spare PT-Series back cover screws
427-0032-00-12, Version 170 Mar 2014 1-5
1 PT-Series Camera Installation
Camera
Serial Control
Ethernet
Heater
Gland seal plugs
Ground Lug
Power
Power
1.5.7 Cable Gland Seal Inserts
The PT-Series camera comes with two 3/4” NPT cable glands, each with a three hole gland seal insert. Cables may be between
0.23" to 0.29" od. Up to six cables may be
installed. Plugs are required for the insert hole(s) not being used. The photograph at the right shows two power cables, an Ethernet cable, a serial control cable (no analog video is installed), and two gland seal plugs.
If non-standard cable diameters are used, you may need to locate or fabricate the appropriate insert to fit the desired cable. FLIR Commercial Systems, Inc. does not provide cable gland inserts other than what is supplied with the system.
Note
Insert the cables through the cable glands on the enclosure before terminating and connecting them. (In general, the terminated connectors will not fit through the cable gland.) If a terminated cable is required, you can make a clean and singular cut in the gland seal to install the cable into the gland seal.
1.6 Camera Connections
1.6.1 Connecting power
The camera itself does not have an on/off switch. Generally the PT-Series camera will be connected to a circuit breaker and the circuit breaker will be used to apply or remove power to the camera. If power is supplied to it, the camera will be in one of two modes: Booting Up or Powered On.
The power cable supplied by the installer must use wires that are sufficient size gauge (16 AWG recommended) for the supply voltage and length of the cable run, to ensure adequate current carrying capacity. Always follow local building codes!
Ensure the camera is properly grounded. Typical to good grounding practices, the camera chassis ground should be provided using the lowest resistance path possible. FLIR requires using a grounding strap anchored to the grounding lug on the back plate of the camera housing and connected to the nearest earth-grounding point.
Note
The terminal blocks for power connections will accept a maximum 16 AWG wire size.
1.6.2 Video Connections
The analog video connections on the back of the camera are BNC connectors. The camera also provides an RCA video connector that can be used to temporarily monitor the video output.
The video cables used should be rated as RG59U or better to ensure a quality video signal.
427-0032-00-12, Version 170 Mar 2014 1-6
1 PT-Series Camera Installation
Analog Video (monitoring output only)
Camera Power
IP Network Analog Visible Video
Analog Infrared Video
Figure 1-3: PT-Series Camera Connections
Heater Power
Not used
Serial Connector for local control
Gland A Camera End
Serial and IP Communications
Main Analog Video
Gland B Camera End
Auxiliary Analog Video and Power
EthernetSerial
Control
Male BNC
Video
Ethernet
RS232
RS422
20 AWG MAX
RX+
TX+
GND
RD(A)-
GND
RD(B)+
TD(A)-
TD(B)+
1
2
3
4
5
{
Main
Port
Back Cover
16 AWG Shielded
16 AWG Shielded
Local GND
24
VAC/DC
24
VAC/DC
1
2
3
1
2
3
24 VAC/DC+
24 VAC/DC-
Earth Ground
24 VAC/DC+
24 VAC/DC-
Earth Ground
{
{
Chassis
GND
Video
Male BNC
Auxiliary
Port
3/4” NPT for Cable Gland or Conduit
427-0032-00-12, Version 170 Mar 2014 1-7
1 PT-Series Camera Installation
1.6.3 Ethernet Connection
The cable gland seal is designed for use with Shielded Category 6 Ethernet cable.
1.6.4 Serial Connection
For serial communications, it is necessary to set the parameters such as the signalling standard (RS­232 or RS-422), baud rate, number of stop bits, parity and so on. It is also necessary to select the communication protocol used (either Pelco D or Bosch) and the camera address. By default, the serial interface uses Pelco D, RS-422 standard, 9600 baud rate, 8/1/none, and address 1.
Note
Typical Bosch systems operate using a biphase connection and the FLIR cameras do not accept biphase signals directly. It may be necessary to install a biphase converter in order to use the Bosch protocol.
Connect the wires of the serial cable as show in Figure 1-3 on page 1-7. When using the RS-422 standard, ensure the transmit pair of the camera goes to the receive pair of the other device, and vice versa.
Note
The terminal blocks for serial connections will accept a maximum 20 AWG wire size.
1.7 Serial Communications Overview
The installer must decide if the serial communications settings will be configured via hardware (DIP switch settings) or software. If the camera has an Ethernet connection, then generally it will be easier (and more convenient in the long run) to make configuration settings via software. Then configuration changes can be made over the network without physically accessing the camera. Also the settings can be saved to a file and backed up or restored as needed.
If the camera is configured via hardware, then configuration changes in the future may require accessing the camera on a tower or pole, dismounting it, and removing the back and so on. If the camera does not have an Ethernet connection, the DIP switches must be used to set the serial communication options.
Note
The serial communications parameters for the PT-Series camera are set or modified either via hardware DIP switch settings or via software, through a web browser interface. A single DIP switch (SW103-9), Software Override determines whether the configuration comes from the hardware DIP switches or the software settings.
Note
The DIP switches are only used to control serial communications parameters. Other settings, related to IP camera functions and so on, must be modified via software (using a web browser).
1.8 Serial Communications Settings - Hardware DIP Switches
The camera has two blocks of DIP switches that are used to configure the serial communications settings. One block of switches has 8 switches and is used to set the serial address (or ID) of the camera. The other block of switches has 10 switches and is used to set baud rate, hardware protocol (RS-232 or RS-422), serial protocol (Pelco D or Bosch), and Software Override.
427-0032-00-12, Version 170 Mar 2014 1-8
1 PT-Series Camera Installation
Figure 1-4: PT-Series Camera Configuration
SW102 SW103
Off
On
Switch Position
The figure below shows the locations of dip switches SW102 and SW103.
If the Software Override DIP switch is set to the software position (as it is by default), all of the other DIP switches will be ignored, and configuration changes must be made through software. If the switch is set to the hardware position, all configuration settings related to serial communications are made with the DIP switches, and changes that are made via software (with a web browser) will be ignored.
Serial Address: Use the block of switches on the left (SW102) to set the serial address of the camera. The available range of values is from decimal 1 to 255. The dip switches are interpreted as a binary number, with switch 1 representing the least significant bit (the switches are in the reverse order of the bits). For convenience, a table of serial addresses and their binary equivalents is included at the end of the manual. See “Serial Address: Decimal To Binary Conversion” on page 3-1.
Table 1-1: Dip Switch Address/ID Settings—SW101
ID
1 On Off Off Off Off Off Off Off
2 Off On Off Off Off Off Off Off
3 On On Off Off Off Off Off Off
………………………
255 On On On On On On On On
Sw 1
LSB
Sw 2 Sw 3 Sw 4 Sw 5 Sw 6 Sw 7
Sw 8 MSB
427-0032-00-12, Version 170 Mar 2014 1-9
1 PT-Series Camera Installation
Other Serial Communication Parameters: The tables below defines the switch locations, bit
numbering and on/off settings used in controlling the other serial communication parameters.
Ta b l e 1 - 2 : D i p S wi tc h S et ti ng s— S W1 03
Settings Description
Baud rate: This is the baud rate of the system user serial
port. The available values are 2400, 4800, 9600, 19200 kbaud.
Camera Control Protocol: This is the communication protocol selected for the system when operating over the serial port. The available protocols are Pelco-D and Bosch.
Serial Communication Standard: This determines the electrical interface selected for the user serial port. The available settings are RS422 and RS232.
Not Used
Bit 1 Bit 2
OFF OFF 2400
ON OFF 4800
OFF ON 9600
ON ON 19200
Bit 3 Bit 4
OFF OFF Pelco-D
ON OFF NA
OFF ON Bosch
ON ON NA
Bit 5 Bit 6
OFF OFF NA
ON OFF RS422
OFF ON RS232
ON ON N/A
Bit 7 Bit 8
XX
XX
XX
XX
Software Override DIP Switch: This setting determines whether the system will use software settings for configuration or if the dip switch settings will override the software settings. Default is Off.
Not Used
427-0032-00-12, Version 170 Mar 2014 1-10
Bit 9
OFF Software select
ON Hardware select
Bit 10
X
1 PT-Series Camera Installation
THERMAL CAMERA SPECS
Detector Type Long-Life, Uncooled
VO× Microbolometer
Pixel Pitch 25 μm
Focal L ength (lens/model dependent) 9 mm, 13 mm, 19 mm 9 mm, 13 mm, 19 mm,
35 mm, 65 mm, 100 mm
Field O f Vie w (lens/model dependent) 24° × 20° (PT-124; 9 mm)
17° × 14° (PT-117; 13 mm) 12° × 10° (PT-112; 19 mm)
48° × 39° (PT-348; 9 mm) 34° × 28° (PT-334; 13 mm) 24° × 19° (PT-324; 19 mm) 13° × 10° (PT-313; 35 mm) 7° × 5° (PT-307; 65 mm)
4.6° × 3.7° (PT-304; 100 mm)
Zoom (model dependent) 2× E-zoom 2× & 4× E-zoom
Spectral Range
Focus Range Athermalized, focus-free
2× & 4× E-zoom
13 mm, 25 mm, 35 mm,
45° × 37° (PT-645; 13 mm)
50 mm, 65 mm, 100 mm
12° × 10° (PT-612; 50 mm)
17 μm
25° × 20° (PT-625; 25 mm)
18° × 14° (PT-618; 35 mm)
10° × 8° (PT-610; 65 mm)
6.2° × 5° (PT-606; 100 mm)
Resolution
320 x 240160 x 120 640 x 480
25 μm
Continuous e-zoom on PT-6xxE models
OUTPUTS
CONTROL
PAN / T ILT PE RF ORM A NC E
GENERAL
Composite Video NTSC or PAL Standard Video Over Ethernet Two independent channels of streaming MPEG -4, H.264, or M- JPEG
for each of two cameras.
Point To Point (stand alone) Standard Ethernet Standard
Serial RS-232/-422; Pelco D, Bosch Network Enabled Standard
Pan Angle/Speed Continuous 360°; 0.1° to 70°/sec Tilt Angle/Speed +90° to -90°; 0.1° to 30°/sec
Weight 36 lb (configuration dependent)
Dimensions (L,W,H) 13.7” × 18.4” × 12.8” (348 mm × 467 mm × 326 mm)
Power Requirements 24 VAC (21- 30 VAC)
24 VDC (21-30 VDC)
Power Consumption 24 VAC: 85 VA max no heater, 215 VA m ax w/he a t er
24 VDC: 65 W max no heater, 195 W max w/heater
DAY/NIG HT CC D CAM ERA Sony FCB-E X1010
Sensor Type 1/4” Exv iew HAD CCD Lens Field Of View Focal Length Zoom F/#
57.8° (h) to 1.7° (h)
3.4 mm to 122.4 mm 36× Optical zoom, 12× E-zoom
1.6 to 4.5
Effective pixels (NTSC) 380,000
ENVIRONMENTAL
Dust, Water Protection Rating IP66
Operating Temperature -40°C to +55°C (-40°F to +130°F)
Inrush Current
<10 A for DC power supply with slew rate > 10 ms <38 A for AC power supply with slew rate > 4.17 ms
1.9 PT-Series Camera Specifications
Power consumption is independent of the input voltage when the heater is off. The power drawn by the heaters increases with the input voltage to a maximum at 30 Volts.
427-0032-00-12 Version 170 Mar 2014 1-11
Loading...
+ 33 hidden pages