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.
This limitation of liability applies whether damages are sought, or a claim is made, under this warranty or as a tort
claim (including negligence and strict product liability), a contract claim, or any other claim. This limitation of
liability cannot be waived or amended by any person. This limitation of liability will be effective even if AMX
Corporation or an authorized representative of AMX Corporation has been advised of the possibility of any such
damages. This limitation of liability, however, will not apply to claims for personal injury.
Some states do not allow a limitation of how long an implied warranty last. Some states do not allow the limitation or
exclusion of incidental or consequential damages for consumer products. In such states, the limitation or exclusion of
the Limited Warranty may not apply. This Limited Warranty gives the owner specific legal rights. The owner may
also have other rights that vary from state to state. The owner is advised to consult applicable state laws for full
determination of rights.
EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY, AMX CORPORATION MAKES NO
OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. AMX CORPORATION
EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED WARRANTY. ANY
IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF THIS
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.
4
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 / 422AXlinkPWR
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.