AD1686B DESCRIPTION and FEATURES
DESCRIPTION
The AD1686B Receiver is a 2-channel controller used with
Matrix Switching Systems to control pan, tilt, zoom, focus,
iris, and auxiliary functions at a camera site. This Receiver is
classified as a dual-channel type since two independent control
channels are supplied, Channel A and Channel B. The output
voltages can be set independently for either channel to either
24 VAC or the input line voltage (120VAC or 230VAC).
The AD1686B can control either two cameras with no
auxiliaries, or one camera with auxiliaries. Channel A always
controls a camera Pan/Tilt and Lens. Channel B is selectable
to control either a second camera or four auxiliaries. These
auxiliaries provide either latching or momentary outputs.
FEATURES
Pan/Tilt and Lens Control
As delivered, each channel of the Receiver provides drive
outputs at 24 VAC for control of Pan/Tilt motors and 11.5
VDC output for Lens control.
Note: Certain Pan/Tilt units require alternate voltages other
than those noted in this manual. If necessary, call our
Service Center for assistance (1-800-442-2225).
Table 1 - Pan/Tilt and Lens Current Ratings
FUNCTION VOLTAGE CURRENT
PAN Motor 24 VAC 1.75 Amps (note 1)
120 VAC 5 Amps (note 1)
230 VAC 3 Amps (note 1)
TILT Motor 24 VAC 1.75 Amps (note 1)
120 VAC 5 Amps (note 1)
230 VAC 3 Amps (note 1)
IRIS Motor 11.5 or 8 VDC .05 Amps (note 2)
FOCUS Motor 11.5 or 8 VDC .05 Amps (note 2)
ZOOM Motor 11.5 or 8 VDC .05 Amps (note 2)
Note 1: For continuous operation, the total of all Pan/Tilt and
Auxiliary currents, for both channels combined, is not
to exceed the following:
3.5 Amps @ 24VAC
5 Amps @ 120VAC
3 Amps @ 230VAC
Note 2: The Lens control output voltage is factory set at 11.5
VDC. This can be changed to 8 VDC by removing
resistors on the main PCB (see Setup, page 2).
Maximum load ratings per relay (function):
120VAC - 300 watts tungsten with 5 Amps inductive loads
230VAC - 300 watts tungsten with 3 Amps inductive loads
Auxiliaries
If configured for auxiliary operation, the Receiver provides
four normally open relays for user-controlled devices. These
auxiliaries can be of either latching or momentary types.
Since loads on each auxiliary vary with each installation, the
output drive is defined as a total output. For 120VAC, the
maximum output is 5 Amps resistive load, with each relay
maximum rating of 5 Amps inductive, and 300 watts tungsten
(for 230VAC, 3 Amps inductive load). For example, if one
relay output requires 4 Amps resistive load, the remaining
three have only 1 Amp available.
Preset Scene
The Preset (Pre-positioned) Scene feature allows the operator
to pre-select a scene and recall that scene by keyboard
command. Preselection of a scene is available only on Pan/Tilt
and Lens units with feedback potentiometers. The pre-selected
scene is stored at the Receiver and battery backed-up in the
event of a power failure. Preset Scene can be enabled or
disabled by a jumper setting (see Setup, page 2). The factory
default setting is for presets enabled.
When controlled by a Matrix Switching System, the Receiver
allows 72 preset scenes per camera to be programmed. Refer
to the installation and operation manuals for the Matrix
Switching Systems for preset programming procedures.
Heater
A built-in heater allows the unit to operate in low temperature
environments. The heater is located on the PCB to provide the
maximum heating for the minimum power. The heater turns
on when the temperature inside the housing drops to 40˚ F.
Auto and Random Pan
The AD1686B Receiver contains sensor circuits to detect pan
movement, permitting auto and random pan operation. Auto
pan moves the Pan/Tilt in the pan direction continuously from
one stop to the other stop (refer to Pan/Tilt instruction manual
for stop information). Random pan operates the Pan/Tilt in the
pan direction with varying amounts of pan travel. The auto
and random pan functions are activated from the keyboard by
AUX commands. The auto and random pan must be setup
during the installation procedure using the Receiver
Configuration Switch, S3 (see Table 2 on pages 3 and 4).
Note: Auto and random pan functions are continuous. Refer
to the Pan/Tilt operation manual for the number of
continuous hours of operation allowed.
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