Usl | UPC-1 | UPC-28 - Film-Tech

Film-Tech
The information contained in this Adobe Acrobat pdf
file is provided at your own risk and good judgment.
These manuals are designed to facilitate the
exchange of information related to cinema
projection and film handling, with no warranties nor
obligations from the authors, for qualified field
service engineers.
If you are not a qualified technician, please make no
adjustments to anything you may read about in these
Adobe manual downloads.
www.film-tech.com
UPC-28
UPC-28 Two Audio Channel Infrared Emitter &
Accessories.
UPC-28C Two Audio Channels plus Closed
Captioning Infrared Emitter & Acessories.
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
-1-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
UPC-28 Two Audio Channel Infrared Emitter
UPC-28C Two Audio Channels plus Closed Captioning Infrared
Emitter
The UPC-28(C) consists of: IRC-28(C) Emitter Panel, IRP-20 DC
Power Pack, and Mounting Brackets
Table of Contents
Introduction...................................................................3
Installation.....................................................................4
Configuration & Test......................................................5
Mounting Configurations...............................................8
Using Two UPC-28s....................................................10
-2-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
Introduction
The IRC-28 transmits two channels of audio over infrared. Channel A is transmitted at 2.3MHz. Channel B is transmitted at 2.8MHz. Both carriers are frequency
modulated. Channel A is normally used to carry the Hearing Impaired audio,
while channel B is normally used to carry the Visually Impaired - Narrative audio.
The IRC-28C includes the two audio channels plus closed captioning. The IRC28C transmits captions in up to three languages. The Ethernet interface to the
Digital Cinema Server works with both SMPTE and Doremi captioning protocols.
1 Ethernet Connector
2 and 6. Input audio level range switches for channels A & B.
With both switch keys in the “up” position, the input range is 0.1 to 1.0
Volts rms. In the down position, the range is 2 to 20 Volts rms.
3 and 7. Input audio level adjustments for channels A & B.
4. and 8. LED audio level indicators for channels A & B.
5 and 9. Compressor slope adjustments for channels A & B.
Increasing compressor slope inproves intelligibility of low level dialog.
10. Main Connector; consisting of the following:
a. Pins 1 & 2: DC Power Input Terminals.
Connects to the DC terminals of the 32VDC Power Pack
supplied with the IRC-28. Red wire connects to + terminal (pin 1)
connection.
b. Pin 3: AC Ground Terminal.
It can be connected to a ground if required by local building
codes.
c. Pin 4: Audio System Ground.
-3-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
Connect to shield of shielded-pair input cable.
d. Pin 5 & 6, 8 & 9: Channel A & B Audio Input Terminals.
Channel A is modulated on a 2.3MHz FM carrier. Channel B
is modulated on a 2.8 MHz FM carrier. Either or both channels
are transmitted by the IR panel. Balanced, differential input. One
side of each may be grounded for unbalanced sources. Ground
at source is recommended.
e. Pin 7 & 10: Audio system ground
11. BNC RF Connectors.
RF connectors provide connection to additional emitter panels in multipanel installations. (see page 10)
UPC-28 INSTALLATION
Unpack the carton and verify that all materials are present.
There should be:
… One system manual
… One IRC-28C Emitter Panel
… One IRP-20C DC Power Pack
… One Mounting Bracket composed of 1 ea. IRBS-20 & IRBE-20
… Two 10-32 x 5/8 machine screws for attaching the emitter panel to the
mounting bracket.
You will need to supply the following materials:
… A small jeweler’s type flat blade screwdriver or trim pot alignment tool for
adjusting the input audio levels.
… A medium flat blade screwdriver for attaching the mounting bracket.
… Shielded audio cable for connection of the IRC-28 to the program source.
… Eighteen gauge or greater; two or three conductor “zip” cord to connect the
DC power pack to the emitter panel.
… Tools and hardware to attach the mounting bracket to the wall
… One IRH-28 receiver.
-4-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
Initial Configuration and Test
It is easier to configure and test the IRC-28(C) before it is installed. The configuration and test procedures are listed below. Connect the power supply to the
IRC-28(C). Note the + and - terminal marking near the terminal strip. Connect the
positive (red) wire to the positive terminal.
IRC-28C Captioning Systems Only
1. Use an Ethernet crossover cable to connect a computer to the Ethernet jack
on the IRC-28C. Set the computer’s network configuration as below:
• IP address: 169.254.1.123
• Gateway: 169.254.1.1
• Subnet Mask: 255.255.0.0
-5-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
2. Apply power to the IRC-28C. On the computer, open a web browser and enter
the IP address 169.254.1.1 . A web page entitled USL Caption Encoder should
show up on the web browser.
3. Go to the web page 169.254.1.1/status.html. A status page should appear.
4. Click the link to the Configuration Page. A login dialog box will appear. The
login name is admin and the password is ultra.
5. On the configuration page, set the IP address of the Digital Cinema Server for
this auditorium.
6. Set the timeline offset to 0. If needed, this can be adjusted later to improve
synchronization between the audio/video and the captions.
7. Choose the caption protocol (SMPTE or Doremi).
8. Set the IR Caption Carrier as desired. Normally, the caption carrier is set to
only transmit when the IRC-28C has a network connection to the DCS. It will shut
down if the DCS is shut down.
9. The IRC-28C does not have an RS232 output, so set the RS232 output to
none.
10. Set the delay to offline text as desired. With SMPTE protocol, this is the
number of seconds from when the DCS tells the IRC-28C to stop sending captions until the IRC-28C starts sending “default text.” With the Doremi protocol,
this is the number of seconds from the last caption data until the default text is
displayed. A value of 600 seconds is typical. An extremely short delay may result
in some default text flashing up between reels on some servers.
11. Set the default text that will be displayed on caption receivers. This is typically
a welcome or promotional message.
12. Set the caption language priorities. With SMPTE protocol, the IRC-28C will
search through the languages available with the movie and use the first three it
finds according to this priority list. With the Doremi protocol, the IRC-28C transmits the first three languages available from the server. The server should be
configured to make these the desired languages. The language
priorities on the IRC-28C configuration page have no effect if the Doremi protocol
is used. Do not use the same language in more than one priority level.
-6-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
13. Click the save button to save the DCS settings.
14. Enter the optional auditorium data and press Save User Data to save it.
The system does not use this data, but displays it to aid users in identifying the
system.
15. If checked, uncheck Enable DHCP. Fill in the IP address, Gateway and Subnet Mask the IRC-28C is to use. The DNS fields may be left unchanged. Click
Save IP Config and Reboot to save the new information.
16. Connect the IRC-28C and your computer to the DCS network (using standard
Ethernet cables). Set your computer to an appropriate IP address for use on the
network.
17. Set the web browser to the IP address you set the IRC-28C to. You should
see the USL Caption Encoder page. Add /status.html to the IP address (ie,
192.168.1.157/status.html). You should see a status page that shows the last 10
actions by the IRC-28C. You should see it connect to the DCS, get an RPL URL,
fetch the RPL, parse the RPL, fetch the timed text file, parse it, and then
be ready for output. Starting the playout should result in the display of captions
on a caption receiver.
All Systems
1. Connect the HI audio to the channel A terminals of the IRC-28(C). Connect the
VI-N audio to the channel B terminals. Two conductor shielded twisted pair cable
is suggested for each audio channel. Connect the two conductors to the + and
- terminals of the appropriate channel. Connect the shield to the adjacent ground
terminal. If an audio source is unbalanced, connect the - lead to the shield at the
audio source.
2. Run programming with HI and VI-N audio. Set the compression slope to 2:1.
Adjust the appropriate DIP switches and input level controls to cause the audio
level LEDs to flash during normal programming, but not stay lit continuously. Try
listening to each channel on IR headphones. If necessary, adjust compression to
bring up low levels or reduce noise.
-7-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
Mounting the IRC-28 at the front of the auditorium
(See Figures D and F) Attach the supplied mounting bracket to the wall surface
and use the supplied screws to attach the bracket to the emitter. Allow free airflow around the emitter and be sure to have at least four inches clearance from
all surfaces, preferably more if at all possible. The rear panel is used as a heat
sink, and the heat must be allowed to dissipate. The unit should be mounted to
the side of the screen/stage area, 12 to 15 feet above the audience’s heads and
pointed downward and into the seating area.
Mounting the IRC-28 at the rear of the auditorium
(See Figures E and G) Attach the supplied mounting bracket to the wall surface and use the supplied screws to attach the bracket to the emitter. Allow free
airflow around the emitter and be sure to have at least four inches clearance from
all surfaces, preferably more if at all possible. The rear panel is used as a heat
sink, and the heat must be allowed to dissipate. The emitter will cover a maximum of 6500 square feet (77’ X 84’) and has a primary 50° (± 25°) vertical and
horizontal coverage angle, usually adequate for a 600-seat theatre. Within 30
feet of the emitter the horizontal dispersion angle of emission increases to over
140°. Within 18 feet of the emitter the vertical dispersion angle of emission increases to 180°. The emitter can be mounted 12 to 15 feet above the audience’s
heads. The unit should be pointed downward into the seated area (Fig. G).
CAUTION: The rear panel may get quite warm to the touch. This is normal.
Installation
Once the IRC-28(C) has been configured, installation consists of extending wiring to the final installation point and mounting the panel. Since the system has
already been configured, installation becomes a matter of wiring it up and
mounting it. Note that if the DC power cable needs to be extended, wire sizes in
the table below are recommended. In addition, be very careful to maintain the
voltage polarity.
-8-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
-9-
UPC-28 Instruction Manual
Ultra Stereo Labs, Inc.
INSTALLATION USING TWO IRC-28s
Two or more IRC-28(C) panels may be cascaded to provide adequate coverage
for a very large auditorium. In such a case, one IRC-28(C) panel becomes the
master source with normal audio input(s), level settings, and Ethernet connection (IRC-28C only). An RF feed from the master to a slave panel is carried by a
75 ohm coaxial cable (RG-59/U or similar) to the first slave panel (RF Out of the
master drives RF In of the slave). The first slave panel then drives the second
slave panel, etc. Each panel must be driven by its own power supply. When a
channel on the master panel shuts down due to lack of audio, transmission of
that channel also ceases on all slave panels. The full power of the master and
slave panels is devoted to active audio channels (and captions if available). If no
channels are active (no audio for 30 minutes), all transmissions cease, saving
power and increasing the IR LED life.
- 10 -
181 Bonetti Drive
San Luis Obispo, CA 93401
ph: 805-549-0161
fax: 805-549-0163
e-mail:usl@uslinc.com
Website: www.uslinc.com
June 2010
Download PDF