Page 1
User Manual
Model 1770
Serial Switch Controller
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2
Model 1770 Serial Switch Controller
The Audio Authority® 1770 Serial Switch Controller provides
a exible way to control a compatible media player, such
as a Brightsign® Model XD1033, with RS-232 serial
commands. Each 1770 controls four push buttons and may
be expanded to 64 positions. Push buttons may be used
for product selection or other commands (see page 3).
Package Contents
Before installing this product, please check the packaging and make certain the
following items are contained in the shipping carton:
• 1770 Serial Switch Controller
• DC Power Adapter
• User Manual
RS-485 BUS
TWO WAY
12V
POWER
INPUT
MODULE ID
SWITCHES
PSB 4
PSB 2
PSB 3
PSB 1
RS-232 OUT
RS-232 IN
12V
POWER
BUS
MICRO SD SLOT FOR
CUSTOM SETUP
(CARD SOLD
SEPARATELY)
COMPATIBLE WITH
BRIGHTSIGN® MEDIA
PLAYERS
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3
Button Control Functions
Demonstration is controlled by push-buttons. The 1770 allows
custom button setup via the microSD card. Stored in “AUTO.
txt”, each button can be assigned a command to output on
the RS232 OUT port. If a microSD card isn’t present, default
commands will be used for each button press. Command
protocol depends on the device.
Buttons are lit solid when idle. Push the button to start demo; if
no demo is playing, the demo starts and the button blinks.
RS-232 Ports
The RS-232 port connects via modular RS-232 to any compatible device at a 9600
Baud rate. RX is located on pin 3, TX on pin 6, and GND on pin 7. A special RJ-45
to DB-9 cable is available from Audio Authority, PN: 801-252.
RS-485 COM Bus
The RS-485 communication pathway is for use with multiple 1770s. See
Module ID below.
Module ID Switches
The Module ID switches 1-4 are off by default (UNIT 1). To set the Module ID for
more than one 1770 follow the chart below.
Switch
1 2 3 4
UNIT 1
OFF OFF OFF OFF
UNIT 2
OFF OFF OFF ON
UNIT 3
OFF OFF ON OFF
UNIT 4
OFF OFF ON ON
UNIT 5
OFF ON OFF OFF
UNIT 6
OFF ON OFF ON
UNIT 7
OFF ON ON OFF
UNIT 8
OFF ON ON ON
UNIT 9
ON OFF OFF OFF
UNIT 10
ON OFF OFF ON
UNIT 11
ON OFF ON OFF
UNIT 12
ON OFF ON ON
UNIT 13
ON ON OFF OFF
UNIT 14
ON ON OFF ON
UNIT 15
ON ON ON OFF
UNIT 16
ON ON ON ON
Buttons are available in
several styles and colors.
Address for unit 4 marked on case.
Page 4
2048 Mercer Road, Lexington, KY 40511-1071 USA
800-322-8346 • 859-233-4599 • Fax: 859-233-4510
support@audioauthority.com • www.audioauthority.com
752-724
Rev. 20170803
Power
Connect the 12V power supply (included) to the jack marked Power Input. The
Power Bus port may be connected to the 1704, or other device sharing the
power supply.
Installation
• Attach the player and the 1770 modules to a at surface with the
screws provided.
• Connect push-buttons. Push-buttons should be four-wire momentary
switches, and can be illuminated (2-5 volt LED).
• Set the Module ID switches and mark the case for identity.
• Connect multiple 1770 modules via Cat 5/6 using the RS-485 ports.
• Connect the RS-232 cable from the 1770 to a compatible media player.
• Connect the HDMI cable from a compatible media player to the TV.
• Connect the power supply to AC power, then to the 1770 power port.
• Call Audio Authority with questions that are not addressed in this manual.
Operation
On power up, the demo push-buttons are lit solid. When the demonstration is
active, the current demonstration push-button blinks, all others are dark.
1770 Example System:
Compare products using audio-video
tracks. Push-button controls allow
the customer to raise and lower the
volume of the video. Push-buttons
are lit solid when idle. Push a product
button again to advance to the
next track.
1770 #1
BRIGHTSIGN MEDIA
PLAYER
PRODUCT SELECT BUTTONS
TV
VOLUME UP - DOWN BUTTONS
1770 #2
HDMI AUDIO-VIDEO
RS-232 CONTROL
RS-485
BUS
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