AMX AXB-PT101530 User Manual

instruction manual
AXB-PT10/15/30
PosiTrack Camera Controllers
Camera Controllers
AMX Limited Warranty and Disclaimer
AMX Corporation warrants its products to be free of defects in material and workmanship under normal use for
three (3) years from the date of purchase from AMX Corporation, with the following exceptions:
Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch overlay components that are warranted for a period of one (1) year.
Disk drive mechanisms, pan/tilt heads, power supplies, MX Series products, and KC Series products are warranted for a period of one (1) year.
Unless otherwise specified, OEM and custom products are warranted for a period of one (1) year.
Software is warranted for a period of ninety (90) days.
Batteries and incandescent lamps are not covered under the warranty.
This warranty extends only to products purchased directly from AMX Corporation or an Authorized AMX Dealer.
AMX Corporation is not liable for any damages caused by its products or for the failure of its products to perform.
This includes any lost profits, lost savings, incidental damages, or consequential damages. AMX Corporation is not
liable for any claim made by a third party or by an AMX Dealer for a third party.
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EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED WARRANTY. ANY
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LIMITED WARRANTY.
Table of Contents
Table of Contents
Introduction ...............................................................................................................1
Specifications .................................................................................................................... 2
Lens Control Modes .......................................................................................................... 3
Servomotor Mode..................................................................................................................... 3
Motor Mode .............................................................................................................................. 4
Pan and Tilt Control........................................................................................................... 4
Zoom, Focus, and Iris Control........................................................................................... 4
Sample Product Application .............................................................................................. 5
Pre-Installation ..........................................................................................................7
Configuration Settings ....................................................................................................... 7
Setting zoom, focus, and iris switches to servomotor or motor mode...................................... 8
Setting the RS-232 DIP switch (S2) ......................................................................................... 8
Setting the AXlink Device DIP switch (S5) ............................................................................... 9
Accessing the AXB-PT10 and AXB-PT15 Internal Jumpers ........................................... 10
Accessing the AXB-PT30 Internal Jumpers .................................................................... 11
Setting the Internal Jumper Communication Mode ......................................................... 12
Configuring An External Camera/Lens Power Supply..................................................... 13
Installation ...............................................................................................................15
Mounting the PT10, PT15, and PT30.............................................................................. 15
PT10 and PT15 Camera/Lens Mounting and Balancing................................................. 16
PT30 Camera/Lens Mounting and Balancing.................................................................. 19
Wiring the Connectors..................................................................................................... 20
Wiring Guidelines ............................................................................................................ 21
Preparing captive wires .......................................................................................................... 22
Using the AXlink connector for data and power ..................................................................... 22
Using the AXlink connector with an external RS-232 control device or PC (Stand-Alone only) 23
Using the RS-232 DB-9 connector ......................................................................................... 23
Preparing the PosiTrack Controllers for communication ........................................................ 23
Using the lens control DB-15 HD (high density) connector .................................................... 24
Pan Characteristics ......................................................................................................... 25
Setting the adjustable pan-limit stops .................................................................................... 25
Tilt Characteristics........................................................................................................... 26
Setting the adjustable tilt-limit stops ....................................................................................... 26
XB-PT10/15/30 PosiTrack Camera Controllers
i
Table of Contents
Programming ..........................................................................................................27
Configuration Commands ............................................................................................... 27
Channel Commands ....................................................................................................... 35
Pan/tilt functions..................................................................................................................... 35
Motor mode lens functions ..................................................................................................... 36
Preset functions .................................................................................................................... 36
Levels.............................................................................................................................. 38
Level applications................................................................................................................... 38
Send_Commands ........................................................................................................... 38
Diagnostic error values .......................................................................................................... 41
Preset parameters and commands ........................................................................................ 42
RS-232 commands ................................................................................................................ 44
RS-232 Send_Strings ............................................................................................................ 46
Stand-Alone RS-232 Protocol ......................................................................................... 46
Response mask ..................................................................................................................... 48
Upgrading the Firmware ........................................................................................49
Upgrading the Firmware Using NetLinx Studio ............................................................... 49
Upgrading Firmware on Axcess Systems .............................................................................. 49
Upgrading the Firmware Using SOFTROM .................................................................... 50
Configuration.......................................................................................................................... 50
Downloading the Firmware .................................................................................................... 50
ii
AXB-PT10/15/30 PosiTrack Camera Controllers

Introduction

The AXB-PT10 PosiTrack 10, AXB-PT15 PosiTrack 15, and AXB-PT30 PosiTrack 30 Camera
Controllers (FIG. 1) are camera/lens controllers used for precise camera-positioning applications.
Each PosiTrack unit supports both AXlink and RS-232 control protocols and connects directly to
an AXlink network. All controllers contain on-board intelligence for consistent motion and lens
control. The AXB-PT10 and AXB-PT15 Camera Controllers use identical connectors and camera
mounts but support different camera/lens weights (refer to the Specifications section for more
detailed information).
PosiTrack 10
LENS POWER
PANJA
CAM
RS-232
LENS
AXlink
Introduction
Dual Camera/ Lens Cradle Assembly
(PT15 uses the
PosiTrack 30
same camera mount as the PT10)
MT
RS-232
LENS
LENS POWER
CAM
AMX
AXlink
Single Camera/Lens Cradle
FIG. 1 AXB-PT10 and AXB-PT30 PosiTrack Camera Controllers (side views)
The following table shows the PosiTrack unit lens compatibility.
PosiTrack Unit Lens Compatibility
Fujinon Lenses Canon Lenses
MD KTSA
BMD RGE PZF
AMSR R
MPX REA
SNPY REA-IA
MDM REA-IA PZF
SNDS RGE
AXB-PT10/15/30 PosiTrack Camera Controllers
1
Introduction

Specifications

The following table lists the specifications for all PosiTrack units.
Specifications
Dimensions (HWD):
AXB-PT10 Camera controller: 5.85" x 5.20" x 4.92" (14.86 cm x 13.22 cm x 14.70 cm)
Camera mount: 0.65" x 2.26" x 3.23" (1.75 cm x 5.74 cm x 8.21 cm)
Cradle support bracket: 3.64" x 5.50" x 0.20" (9.25 cm x 13.97 cm x 0.51 cm)
Dimensions (HWD):
AXB-PT15 Camera controller: 6.43" x 5.61" x 5.38"
(16.32 cm x 14.25 cm x 13.67 cm)
Camera mount: 0.65" x 2.26" x 3.23" (1.75 cm x 5.74 cm x 8.21 cm)
Cradle support bracket: 3.64" x 5.50" x 0.20" (9.25 cm x 13.97 cm x 0.51 cm)
Dimensions (HWD)
AXB-PT30 Camera Controller: 7.10" x 5.70" x 4.65" (18.03 cm x 14.49 cm x 11.81 cm)
Camera Cradle: 4.75" x 3.75" x 6.25" (120.67 mm x 95.28 mm x 158.75 mm)
Power Consumption:
AXB-PT10
AXB-PT15
AXB-PT30
Weight:
AXB-PT10
AXB-PT15
AXB-PT30
Angular Travel: Pan ± 179° (358° total)
Maximum Speed:
AXB-PT10 • Pan 45°/sec.
AXB-PT15 • Pan 55°/sec.
AXB-PT30 • Pan 35°/sec.
Weight Capacity:
AXB-PT10
AXB-PT15
AXB-PT30
Repeatability:
AXB-PT10
AXB-PT15
AXB-PT30
2.6 A max @ 12 VDC
4 A max @ 12 VDC
6 A max @ 12 VDC
8.00 lbs. (3.63 kg)
10.51 lbs. (4.77 kg)
13.05 lbs. (5.92 kg)
Tilt ± 90° (180° total)
• Tilt 45°/sec.
• Tilt 55°/sec.
• Tilt 35°/sec.
10 lbs. (4.54 kg) balanced lens/camera weight (maximum)
15 lbs. (6.80 kg) balanced lens/camera weight (maximum)
30 lbs. (13.6 kg) balanced lens/camera weight (maximum)
± 5 arc minutes
± 3 arc minutes
± 5 arc minutes
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AXB-PT10/15/30 PosiTrack Camera Controllers
Introduction
Specifications (Cont.)
DIP Switches: • (S2) - RS-232 communication (baud rate)
• (S5) - AXlink communication (device #)
Presets: Stores up to 255 presets for pan, tilt, zoom, focus, and iris operations; 127 of
those presets return a status when queried.
Relays: Solid-state relays for servomotor lens mode control (zoom/focus speed/position
and iris local/auto)
Optical Centerline: Optical centerline is between 1/2" and 5" above the mounting plane of the cam-
era/lens (this allows the mounting of the camera/lens so that the tilt axis is capable of going through the optical axis of the camera)
Environmental Parameters: 32° F to 120° F (0° C to 48.8° C) ambient temperature range
Enclosure: Metal with enamel and anodized matte finish
Control Panel: • RS-232 DB-9 connector (300 baud - 38.4 KB communication for camera
Battery: Lithium battery to protect preset memory (up to 10 years)
Connectors: • 4-pin captive wire (AXlink)
Optional Accessories: • CC-CAM lens control cable (specify make and model)
control)
• DB-15 high density connector (lens control)
• Lens power switch (powers or isolates the camera lens)
• AXlink 4-pin connector (provides AXlink, RS-232 stand-alone communication, and power connection points)
• DB-15 HD 15-pin high-density (female) for lens control
• DB-9 9-pin D-sub (male) for RS-232 camera control
• CC-CAM RS-232 camera control cable (specify make and model)
• Pedestal mount (PM-CAM, PosiTrack Pedestal Mount)
• PSN2.8 Power Supply (for use with the PT10 Camera Controller)
• PSN6.5 Power Supply (for use with the PT10/15/30 Camera Controllers)
- This power supply can be used with ALL PosiTrack units
• Tripod mount (TM-CAM, PosiTrack Tripod Mount Adapter)
• Wall-mount bracket (WM-CAM, PosiTrack Wall Mount)

Lens Control Modes

The Servomotor and Motor modes are two Analog Voltage Control methods available on the
PosiTrack units.

Servomotor Mode

This method is generally used in broadcast or videoconference-style lenses. The voltage range used
for servomotor style lenses is +2.5 to +7.5 VDC. These lenses can be controlled in two different
modes: positional mode and speed mode.
Positional mode is the most common Servomotor mode. When voltage changes, the lens
moves and remains still until the voltage changes again. For example, if a lens receives a
voltage of +3 VDC, the lens moves to the corresponding position and stays there as long
as the voltage remains at +3 VDC. The movement speed of the lens motor is a function of
the PosiTrack unit’s analog output. The lens servomotor receives the preset voltage when
a preset is recalled in the positional mode.
AXB-PT10/15/30 PosiTrack Camera Controllers
3
Introduction
Speed mode moves the lens when the voltage deviates from the center point of its range.
The farther the voltage moves away from the center point of reference, the faster the lens
motor moves. The lens must have POT outputs when recalling a preset in this mode,. The
outputs pass to the PosiTrack unit, and when the received voltage level matches the level
stored in the preset, the voltage returns to zero. Servomotor speed mode lenses not
having POT outputs do not have preset recall capability.

Motor Mode

Motor mode is used when the lens requires the motors be directly driven from an external source.
The standard voltage ranges are ± 6 VDC or ± 12 VDC with a center (no motion) of 0 VDC. Unlike
servomotor lenses, these only operate in speed mode.
The lens moves in relation to the voltage offset from zero. The farther the voltage moves away from
the center point, the faster the lens motor moves. The lens must have POT outputs when recalling a
preset in this mode, these outputs are then passed to the PosiTrack unit. When the received voltage
level matches the level stored in the preset, the voltage returns to zero. Motor mode lenses not
having POT outputs do not have preset recall capability.

Pan and Tilt Control

Presets and travel limit stops are based on encoder counts from a home position index, located at
the center of each axis’ range of motion.

Zoom, Focus, and Iris Control

Each PosiTrack unit delivers a low voltage pulse-width-modulated output for zoom, focus, and iris
functions for motor mode lenses. These units are also capable of receiving reference voltage rails
and sending zoom, focus, and iris control signals in response to these rails. In this setting (slide-
switch configured), no active control signals will reach the lens before power (+ 12 VDC and
GND) is supplied to the lens. This motor mode applies to the control of the Fujinon and Canon
teleconferencing lenses. During preset recall operation, these outputs are synchronized with the pan
and tilt motions. Refer to the PosiTrack Unit Lens Compatibility table on page 1. Four solid state
relays are also provided to control the zoom, focus, and iris speed/position mode selection and iris
local/auto selection on the Fujinon MD series and Canon KTSA series lenses.
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AXB-PT10/15/30 PosiTrack Camera Controllers

Sample Product Application

FIG. 2 shows a sample camera control application using the AXB-PT10.
Application #1 - AXlink
AMX AXB-PT10
AMX Local Power Supply
Introduction
AMX AXP-PLV
PWR cable
AXlink
AMX AXB-EM232 (rear view)
V
CTS2
RTS2
GND
485EN
RX2
TX2
RS-232
GND
RX
TX
TX
RX
TX1
RX1
RS-232 / 422 AXlink PWR
AXlink
AMX ABS (AXlink Bus Strip)
AMX PS2.8 Powe r S up pl y
PWR cable
Application #2 - RS-232
AMX AXB-PT10
AMX Local Power Su pp l y
PWR cable
FIG. 2 Sample AXB-PT10 camera product application
Use a separate power supply to power each PosiTrack unit. Power to the PosiTrack unit is supplied from the external power supply to the unused power pin on the PosiTrack unit’s AXlink connector. The AXB-PT10 unit requires a PSN2.8 or PSN6.5 power supply. The AXB-PT15 and AXB-PT30 units require a PSN6.5 power supply.
12VDC
AXM
AXP
GND
PWR
PC or other RS-232 controller
AXB-PT10/15/30 PosiTrack Camera Controllers
5
Introduction
6
AXB-PT10/15/30 PosiTrack Camera Controllers

Pre-Installation

There are four SPDT slide switches in the lens control section (FIG. 3). Three of the switches
toggle the lens control selection between servomotor or motor mode hardware for control of zoom,
focus, and iris. The fourth selects between ± 6 VDC and ± 12 VDC control for motor mode lens
functions.
An SPDT switch is a Single Pole-Double Throw switch. This switch is completed at both positions. An example is the Volt switch that is active in both the 6 and 12 positions.
Each PosiTrack unit consists of two main Printed Circuit Boards (PCBs):
PosiTrack Processor PCB (PosiTrack Mother Board) contains the main processor, 2MB
FlashROM, and 2MB SRAM.
PosiTrack Power Management PCB (PosiTrack Daughter Board) contains power
conditioning circuitry, control outputs/inputs to the pan/tilt drives, and zoom/focus/iris
outputs, and inputs to the lenses.
Pre-Installation
The following table shows the necessary tools when working on the PosiTracks.
Necessary Tools
AXB-PT10/15 AXB-PT30
3/32 HEX KEY Anti-Rotation Pin 5/64 HEX KEY Cover Screws
3/16 HEX KEY Camera Mount Screw 1/16 HEX KEY Bezel and Connector Screws
1/16 HEX KEY Cover Screws and Connector
Bezel
5/64 HEX KEY Tilt Arm Screws 5/64 HEX KEY Tilt Arm Screws
3/32 HEX KEY Camera Mount ADJ. Screws 3/32 HEX KEY Camera Mount ADJ. Screws
3/32 HEX KEY Camera Mount ADJ. Screws

Configuration Settings

Both PosiTrack units contain switches for setting the control mode, lens control voltage, RS-232
baud rate, and AXlink address. Before installing the PosiTrack unit, you must set the DIP switches,
lens control mode switches, and lens control voltage switch.
AXB-PT10/15/30 PosiTrack Camera Controllers
7
Pre-Installation
AXlink
S6 VOLT
6 12
S1 ZOOM
S M
S3 FOCUS
S M
S4 IRIS
S M
FIG. 3 Lens control section (back panel)
LED
RS-232
AXlink

Setting zoom, focus, and iris switches to servomotor or motor mode

Both PosiTrack units support servomotor (+2.5 to +7.5 VDC operating range) and direct-drive
motor (± 6 VDC or ± 12 VDC operating range) lens control. The table below shows how to set the
switches for servomotor mode (S) or motor mode (M). If you are using a direct-drive lens, refer to
the manufacturer's literature to set the VOLT switch for ± 6 or ± 12 VDC control.
Servomotor and Motor Voltage Switch Settings
Servomotor mode Motor mode (+ 6 VDC) Motor mode (+ 12 VDC)
VOLT
6 12
ZOOM
S M
FOCUS
S M
IRIS
S M
VOLT
ZOOM
FOCUS
IRIS
6 12
S M
S M
S M
VOLT
6 12
ZOOM
S M
FOCUS
S M
IRIS
S M

Setting the RS-232 DIP switch (S2)

The RS-232 DIP switch (S2) positions 1 and 2 set the stop and data bits, positions 3 through 5 set
the parity, and positions 6 through 8 set the baud rate. FIG. 4 shows the RS-232 DIP switch.
RS-232 DIP switch (S2)
1 2 3 4 5 6 7 8
FIG. 4 RS-232 communications parameters DIP switch (S2) (default setting)
The PosiTrack units contain one EIA RS-232C standard port for equipment that requires RS-232
control. The following communication protocols are supported:
300, 600, 1200, 2400, 4800, 9600, 19200, and 38400 baud
7, 8, or 9 Data bits
1 or 2 Stop bits
Even, Odd, and None parity settings
8
AXB-PT10/15/30 PosiTrack Camera Controllers
Pre-Installation
The RS-232 factory default communications settings are: 9600 baud, No Parity, 8 bits, and 1 stop
bit. The following table lists the RS-232 Port DB-9 (male) pinouts.
RS-232 Port DB-9 (male) Pinouts
Pin Signal Function
1N/AN/A
2RXDRXD
3TXDTXD
4N/AN/A
5GNDGND
6N/AN/A
7RTSRTS
8CTSCTS
9N/AN/A
The following table lists the RS-232 DIP switch settings.
RS-232 DIP Switch (S2) Settings
Position 1 2 3 4 5 6 7 8
Function Stop Bits Data Bits Parity Baud Rates
Off Off Off Off Off Off Off Off
2 bits 7 bits Unused 300
On On On Off Off On Off Off
1 bit 8 bits Unused 600
Off On Off Off On Off
Unused 1,200
On On Off On On Off
Unused 2,400
Off Off On Off Off On
Unused 4,800
On Off On On Off On
Even 9,600
Off On On Off On On
Odd 19,200
On On On On On On
None 38,400

Setting the AXlink Device DIP switch (S5)

The eight-position Device DIP switch (S5), shown in FIG. 5, must match the number assigned in
the Axcess software program. The Device DIP switch example is set to 90 (2 + 8 + 16 + 64 = 90),
the factory default setting.
1 2 3 4 5 6 7 8
FIG. 5 AXlink device DIP switch (S5) (default value of 90)
AXB-PT10/15/30 PosiTrack Camera Controllers
AXlink DIP switch (S5)
9
Pre-Installation
The AXlink device number range is 1-255. The Device DIP switch positions determines their
values, based on the following table:
Device DIP Switch (S5) Settings and Values
Position 12 34567 8
Value 1 2 4 8 16 32 64 128
After setting the AXlink device number, remove and reconnect the AXlink connector on the
PosiTrack unit to save the new number.

Accessing the AXB-PT10 and AXB-PT15 Internal Jumpers

Jumpers J6 through J8, located on the circuit board inside the PT10 and PT15, set the
communication mode to AXlink (factory default) or RS-232.
You need a 5/64" (1.98 mm) and 1/16" (1.59 mm) Allen wrench to open the unit, and a pair of non-
conducting pliers to set the jumpers using the following steps.
Remove the control panel before you remove the cover, in order to avoid any damage to the unit.
1. Discharge any accumulated static electricity from your body before removing the enclosure.
Remove the static electricity by touching a grounded metal object.
2. Unplug all connectors from the rear panel of the PosiTrack unit.
3. Remove the four screws, located around the connector panel (FIG. 6), by using the 1/16" Allen
wrench. BHSC is the abbreviation for the Button Head Socket Cap screws.
BHSC screws (two screws
in rear)
LENS POWER
AMX
FIG. 6 Pan-head screw locations
RS-232
LENS
CAM
AXlink
BHSC screws (two screws on top)
Tilt-head screws (four screws available)
BHSC screws (five screws on each side)
Connector panel (four screws)
10
4. Carefully pull the connector panel away from the main unit until the bottom edge of the cover
clears the connector panel. Be careful not to damage the pins attached to the connector panel.
FIG. 7 illustrates how to remove the control panel.
5. Using the 1/16" Allen wrench, remove the 14 BHSC screws, from the left, right, top, and back
sides of the PosiTrack unit.
AXB-PT10/15/30 PosiTrack Camera Controllers
Pre-Installation
Pins that connect the control panel to the motherboard
FIG. 7 Control panel removal for PT10 and PT15
6. Carefully pull the cover straight up from the main unit, until the bottom edge of the cover
clears the connector panel and then slide it backwards (as seen in FIG. 8).
FIG. 8 Removing cover on the PT10 and PT15

Accessing the AXB-PT30 Internal Jumpers

Jumpers J6 - J8, located on the circuit board inside the AXB-PT30, set the communication mode to
AXlink (factory default) or RS-232.
You need a 5/64" (1.98 mm) and 1/16" (1.59 mm) Allen wrench to open the unit, and a pair of non-
conducting pliers to set the jumpers using the following steps.
1. Discharge any accumulated static electricity from your body before removing the enclosure.
Remove the static electricity by touching a grounded metal object.
2. Unplug all connectors from the rear panel of the AXB-PT30.
3. Using the 1/16" Allen wrench, remove the four #4-40 socket head screws located around the
connector panel (FIG. 9), by using.
4. Remove the 16 BHSC screws, using the 5/64" Allen wrench, from the left, right, top, and back
sides of the AXB-PT30. A sample view of the screw locations is shown in FIG. 9.
5. Carefully pull the cover straight up from the main unit, until the bottom edge of the cover
clears the connector panel, and place the cover aside (see FIG. 8).
AXB-PT10/15/30 PosiTrack Camera Controllers
11
Pre-Installation
BHSC screws (two screws on top)
Connector panel
(four screws)
BHSC screws (six screws on each side)
BHSC screws
(two on the rear)
PosiTrack 30
LENS POWER
AMX
CAM
RS-232
LENS
AXlink
FIG. 9 Pan-head screw locations

Setting the Internal Jumper Communication Mode

1. Locate jumpers J6, J7, and J8 communication mode jumpers on the Mother PCB (FIG. 10).
The connectors and the main board are mounted onto the pan base.
2. Set the jumpers for either AXlink or RS-232 communication.
Jumper locations (3 pair)
J8
J6
J6, J7, and J8 communication mode settings
Lens control section
FIG. 10 Communication mode jumpers J6, J7, and J8 (factory default set to AXlink)
3. Set the jumpers for either AXlink or RS-232 communication.
Jumper Settings (top view)
AXlink (pins 1 & 2) RS-232 (pins 2 & 3)
RS-232
AXlink
AXlink
RS-232
12
Jumper 8
Jumper 7
Jumper 6
Pin #s 1 2 3
MOTOR
Jumper 8
Jumper 7
Jumper 6
Pin #s 1 2 3
MOTOR
AXB-PT10/15/30 PosiTrack Camera Controllers
Pre-Installation
For RS232 stand-alone mode, the 8-position AXlink Device DIP switch must be set to all off (down position).
4. Carefully place the cover back onto the main unit by sliding it over the internal gears and
motherboard.
5. Align the Control panel screw holes. Make sure the cables are not pinched in the back panel or
drive gears.
6. Insert the 14 BHSC screws and tighten securely using the 1/16" Allen wrench.
Steps 6 and 7 apply to the AXB-PT10/PT15 units where the removal of the Control Panel differs from the PT30.
7. Carefully insert the connector panel, on the PT10/15, into the opening on the side of the unit
and connect it to the motherboard located inside the unit.
8. Firmly secure the control panel to the motherboard.
9. Using the 1/16" Allen wrench, insert the four BHSC screws, located around the connector
panel.
10. Use the wire tie-mount to secure connector cables.

Configuring An External Camera/Lens Power Supply

The camera/lens power switch, located between the AXlink and DB-15 connectors, regulates the
power to the camera/lens from the PosiTrack unit. The power switch, seen in FIG. 6 and FIG. 9,
Opens (turns Off) or Closes (turns On) the circuit feeding power to the camera/lens assembly. Refer
to the Wiring the Connectors section on page 20 for more information about the control panel.
Flip the Lens Power switch to the left if you are only providing power to the camera/lens
assembly through the PosiTrack unit.
Flip the Lens Power switch to the right if you are providing external power to the camera/
lens assembly. By turning the switch Off, the dedicated +12 VDC stops providing
additional power to the camera/lens; preventing damage to power supplies and noise in
the video cables.
AXB-PT10/15/30 PosiTrack Camera Controllers
13
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