User’s Manual
RGB 138 , RGB 158
VGA Interfaces with Stereo Audio and ADSP™
68-410-03
Printed in the USA
EXTRON ELECTRONICS, EUROPE
Beeldschermweg 6C, 3821 AH Amersfoort
+31.33.453.4040 FAX +31.33.453.4050
The Netherlands
EXTRON ELECTRONICS, ASIA
41B Kreta Ayer Road, Singapore 089003
+65.226.0015 FAX +65.226.0019
Singapore
EXTRON ELECTRONIC INFORMATION
EXTRONWEB™: www.extron.com
EXTRONFAX™: 714.491.0192
EXTRON ELECTRONICS/RGB SYSTEMS, INC.
1230 South Lewis Street, Anaheim, CA 92805
800.633.9876 714.491.1500 FAX 714.491.1517
USA
24-hour access — worldwide!
Table of Contents
Chapter 1 • Introduction.......................................................... 1-1
About this Manual ................................................................ 1-2
About the RGB 138xi and RGB 158xi ............................. 1-2
Features ...................................................................................... 1-2
RGB 138xi and RGB 158xi features ........................................ 1-2
RGB 138xi features ................................................................. 1-3
RGB 158xi features ................................................................. 1-3
Chapter 2 • Installation and Operation ........................ 2-1
Installation Overview.......................................................... 2-2
Front Panels .............................................................................. 2-3
RGB 138xi front panel............................................................ 2-3
RGB 158xi front panel............................................................ 2-4
Rear Panels................................................................................ 2-6
RGB 138xi and RGB 158xi rear panels ................................... 2-6
Setting Internal Jumpers................................................... 2-9
Installing Adapter Plates ................................................. 2-11
Mounting the Interfaces.................................................. 2-14
Tabletop/desktop placement .............................................. 2-14
Under-desk mounting ......................................................... 2-14
Through-desk mounting ..................................................... 2-15
Rack mounting..................................................................... 2-16
Cabling ...................................................................................... 2-17
Troubleshooting ................................................................... 2-20
Appendix A • Specifications................................................. A-1
Appendix B • Accessories and Part Numbers ...........B-1
Included Parts ..........................................................................B-2
Accessories................................................................................B-2
Cables...........................................................................................B-2
Adapter Plates.........................................................................B-4
Multi Type Connector Architectural Adapter Plates ...........B-5
Single Type Connector Architectural Adapter Plates ..........B-6
68-410-03 B
Printed in the USA
01 00
RGB 138xi, RGB 158xi Table of Contents
i
Table of Contents, cont’d
RGB 138xi, RGB 158xi
Chapter One
1
Introduction
About This Manual
About the RGB 138xi and RGB 158xi
Features
RGB 138xi, RGB 158xi Table of Contents
ii
Introduction
Advanced Digital Sync Processing™ (ADSP™) — ADSP
allows sync processing operations, such as horizontal
centering, to occur without affecting the signal’s sync
timing. This allows horizontal centering to be
applied to signals that are output to digital display
devices such as LCD projectors, DLP projectors and
plasma displays. A rear panel DIP switch allows an
alternative, Digital Display Sync Processing™
(DDSP™), to be used instead.
About This Manual
This manual contains information about the RGB 138xi and
RGB 158xi universal analog interfaces and on how to
operate and configure them. Unless otherwise specified,
references to “the interface” refer to the features or
operation of both models.
About the RGB 138xi and RGB 158xi
The RGB 138xi and RGB 158xi are computer-video and
stereo audio interfaces with 300 MHz (-3dB) video
bandwidth. These interfaces have a horizontal frequency
range of 15 kHz to 125 kHz, so they can be used with any
type of analog computer signal, including those from VGA,
SVGA, XGA, SXGA, XGA-2, Mac, Quadra, Sun, and SGI
computers.
Gain/peaking control — To compensate for signal
degradation caused by long cable lengths, use this
rear panel toggle switch to increase output voltages.
Serration pulse — This feature allows serration pulses to
either be present or not present at the output.
Serration pulses are required for some displays.
Pass-through connectors — A wide assortment
of architectural adapter plates is available for
installation on these interfaces to allow convenient
pass-through A/V connections.
Features
This section highlights the main features of the RGB 138xi
and RGB 158xi interfaces. See the installation chapter for a
detailed description of front and rear panel features.
RGB 138xi features
MBC power jack — The power connector of a buffered
monitor breakout cable can be plugged directly into
the front panel jack on this interface.
RGB 138xi and RGB 158xi features
Internal power supply — Use standard IEC power cords.
Front panel AC outlet — Peripherals or laptop computers
can be plugged into the unswitched front panel AC
outlet for a convenient power connection. This feature
is not available in Europe.
Vertical shift control — The RGB 138xi lets you adjust
vertical centering with a front panel knob.
75 ohm video termination — 75 ohm video termination
can be selected from a rear panel DIP switch.
Furniture and rack mountability — The RGB 138xi and
RGB 158xi can be mounted under a desk or podium
with optional hardware, or they can be mounted in a
rack or through a desk or other furniture with
included vertical mounting brackets.
RGB 158xi features
Buffered local monitor output — A 15-pin HD female
connector provides a front panel buffered output for
a local monitor.
Active stereo audio — Unbalanced stereo audio input via a
front panel jack is output as balanced, line level
stereo audio on the rear panel captive screw
connector.
ID bit termination — Two front panel DIP switches
provide ID bit termination on pins 4 and/or 11 of the
local monitor output.
Horizontal shift control — Both models feature front panel
horizontal centering control.
Sync stripping — Incoming sync will be stripped from the
red, green and blue signals.
RGBHV, RGBS or RGsB output — RGBHV can be output
simultaneously with RGBS. Sync on green (RGsB)
output can be DIP switch selected.
RGB 138xi, RGB 158xi Introduction
1-2
RGB 138xi, RGB 158xi Introduction
1-3
Introduction, cont’d
RGB 138xi, RGB 158xi
Chapter Two
2
Installation and Operation
Installation Overview
Front Panels
Rear Panels
Setting Internal Jumpers
Installing Adapter Plates
Mounting the Interfaces
Cabling
Troubleshooting
RGB 138xi, RGB 158xi Introduction
1-4
Installation and Operation
Installation Overview
Front Panels
This is an overview of the installation process. You will
find detailed installation instructions in this chapter.
This section will familiarize you with the front panel
features and the options for making connections and
changing settings.
To install and set up the RGB 138xi or RGB 158xi for
operation, follow these basic steps:
Setting DIP switches
The DIP switches on the front panel of the RGB 158xi and
on the rear panels of the RGB 138xi and the RGB 158xi may
be either the rocking type or the sliding type.
Turn all of the equipment off. Make sure that the
computer, the interface and the output device(s)
(projector or display monitor, and local monitor) are
all turned off and disconnected from the power
source.
1
To set rocking type DIP switches, use a
1
2
3
4
small screwdriver to depress the
appropriate end of each switch.
Set internal jumpers for sync polarity and sync pulse
width. See “Setting Internal Jumpers” in this chapter.
2
3
1
2
3
4
To set sliding type DIP switches, use a small
screwdriver to slide (push) the switch to the
On/closed or Off/open position.
Install optional adapter plates for pass-through A/V
connections. See “Installing Adapter Plates” in this
chapter.
Install the rubber feet for tabletop use, or install the
appropriate brackets and furniture or rack mount the
interface. See “Mounting the Interfaces” in this
chapter.
4
RGB 138xi front panel
RGB 138
UNIVERSAL INTERFACE W/ADSP
UNSWITCHED
Attach the input (computer) and output (display,
local monitor and audio) cables. See “Cabling” in
this chapter.
5
6
7
8
INPUTS
AUDIO
ANALOG/ECL
MBC
MIN/MAX
H. SHIFT
V. SHIFT
POWER
100-240
0.5A MAX.
1
2
3
4
1
5
6
7
8
9
Set the DIP and toggle switches. Use the “Front
Panels” and “Rear Panels” sections of this chapter as
a guide.
2-color power/signal LED — This LED lights amber
to indicate that power is on only. It lights green to
indicate that power is on and a video signal is also
present.
Connect power cords and turn on the devices in the
following order: output devices (projector, monitors,
speakers) and input device (computer).
The image should now appear on screen, and sound
should be audible. If not, ensure that all devices are
plugged in and receiving power. Check the cabling
and switch settings, and make adjustments as
needed.
Audio input jack — This 3.5 mm stereo input jack
accepts an unbalanced stereo audio input. See
“Cabling” in this chapter for wiring instructions.
2
9-pin D male analog video input connector
3
4
Refer to “Troubleshooting” in this chapter, then call
Extron’s customer support hotline, if needed.
MBC buffer power jack — This audio-style 2.5 mm
power jack provides power for a buffered monitor
breakout cable.
(Continued)
RGB 138xi, RGB 158xi Installation and Operation
2-2
RGB 138xi, RGB 158xi Installation and Operation
2-3
Installation and Operation, cont’d
Horizontal shift control knob — This control adjusts
the horizontal centering of the remote output display.
Analog video input 15-pin HD male connector
5
3
4
ID bit termination DIP switches — These switches
provide proper ID bit termination when a
local monitor is not connected to the
The horizontal and vertical shift controls have no
mechanical limits to rotation. When the minimum
or maximum limit of the control is reached, the
picture will cease to move on screen, and the
MIN/MAX indicator LED will light red.
interface’s buffered local monitor output.
DIP switch 1 connects pin 4 to ground.
DIP switch 2 connects pin 11 to ground.
If the DDSP™ DIP switch is set to On, the
horizontal and vertical shift controls are disabled.
ON — Set both switches (ID BIT 4 and
ID BIT 11) to On if no local monitor is
connected.
Vertical shift control knob — This control adjusts
the vertical centering of the remote output display.
See the notes above for horizontal shift control.
6
7
8
OFF — Set both switches to Off if a local
monitor will be attached to the interface.
Buffered local monitor output 15-pin HD female
connector — This allows output to a local monitor.
Set the ID bit DIP switches to On if this connector is
not used.
5
6
MIN/MAX indicator LED — This LED lights red
whenever the lower or upper limits of the horizontal
or vertical shift controls are reached.
Optional architectural adapter plates — Up to four
adapter plates for pass-through audio/video
connections can be attached at one time to the
interface. See the “Installing Adapter Plates” section
in this chapter for installation instructions.
Horizontal shift control knob — This control adjusts
the horizontal centering of the remote output display.
The horizontal shift control has no mechanical
limits to rotation. When the minimum or
maximum limit of the control is reached, the picture
will cease to move on screen, and the MIN/MAX
indicator LED will light red.
AC power output connector — An unswitched
standard IEC AC power connector lets you connect a
peripheral device that requires power. This feature is
not available in Europe.
9
If the DDSP DIP switch is set to On, the horizontal
shift control is disabled.
RGB 158xi front panel
MIN/MAX indicator LED — This LED lights red
whenever the lower or upper limits of the horizontal
or vertical shift controls are reached.
7
8
Optional architectural adapter plates — Up to four
adapter plates for pass-through audio/video
connections can be attached at one time to the
interface. See the “Installing Adapter Plates” section
in this chapter for installation instructions.
RGB 158
UNSWITCHED
UNIVERSAL INTERFACE W/ADSP
INPUTS
ANALOG
BUFFERED LOCAL
MONITOR OUTPUT
AUDIO
MIN/MAX
H. SHIFT
100-240
0.5A MAX.
1
2
3
4
1
5
6
7
8
9
AC power output connector — An unswitched
standard IEC AC power connector allows you to
connect a peripheral device that requires power. This
feature is not available in Europe.
9
2-color power/signal LED — This LED lights amber
to indicate power On only. It lights green to indicate
that power is On and a video signal is also present.
Audio input jack — This 3.5 mm stereo input jack
2
accepts an unbalanced stereo audio input.
RGB 138xi, RGB 158xi Installation and Operation
2-4
RGB 138xi, RGB 158xi Installation and Operation
2-5
Installation and Operation, cont’d
If the edges of the image seem to exceed their
boundaries or if thin lines and sharp edges look
thick and fuzzy, try changing the gain/peak setting.
Rear Panels
RGB 138xi and RGB 158xi rear panels
R
H
G
V
B
S
DIP switches — Three of the four DIP switches on
the rear panels are common to both the RGB 138xi
and the RGB 158xi. They control sync on green
(SOG) output, Digital Display Sync Processing and
serration pulse removal.
4
GAIN/
PEAK
100%
UNITY
100-240
50/60 Hz 0.5A
50%
OUTPUT
R
H
G
V
B
S
GAIN/
PEAK
100%
The fourth switch controls video input termination
(75 ohm vs. Hi Z) in the RGB 138xi, and it has no
function (spare) in the RGB 158xi.
UNITY
50%
100-240
50/60 Hz 0.5A
OUTPUT
1
2
2
3
4
5
6
1 — SOG (sync on green)
ON — When this switch is set to On, the
interface will output sync on green.
AC power input connector — Connect a standard
IEC AC power cord here for power
1
OFF — When the SOG switch is set to Off, the
interface outputs both separate
input (100VAC to 240VAC, 50/60 Hz).
horizontal and vertical sync (on the H
and V connectors) and composite sync
(on the S connector) for RGBHV or
RGBS, respectively.
Cable access openings — Cables attached to the
A/V pass-through architectural adapter plates exit
the enclosure here. Clamp cables in place with the
supplied hardware.
2
3
2 — DDSP™ (Digital Display Sync Processing™)
This feature may be necessary for digital display
devices such as LCD (liquid crystal display),
DLP (digital light processing) and plasma
displays. Use this option if the image still is not
displayed properly after all other options, such
as serration pulse removal and video
3-position gain/peaking switch — Use this toggle
switch to compensate for signal degradation caused
by long (over about 125 feet) cable lengths. Choose
the setting that provides the best image on the output
display device. Select from these options:
termination changes, have been explored.
• Unity (no gain or peaking) — The output level is
the same as that of the input and with no
added peaking.
ON — When this switch is set to On, the
interface uses Digital Display Sync
Processing instead of Advanced Digital
Sync Processing™. DDSP does not
process the sync signal.
• 50% — This setting increases the output signal
level and adds 50% of the maximum peaking
to the signal.
DDSP will disable horizontal and vertical
shift controls.
• 100% — This setting increases the output signal
level and adds 100% of the maximum peaking
to the signal.
OFF — When this switch is set to Off, the
interface performs sync processing
operations, such as horizontal shifting,
with ADSP.
If the signal cable between the interface and the
display device is shorter than approximately
125 feet, and the gain/peak switch is set to a setting
other than unity, the image may be overly bright
(overcompensated).
3 — SERR (serration pulse) — Many display
devices, including LCD and DLP projectors and
plasma displays, must have serration pulses
removed from the sync signal in order to display
RGB 138xi, RGB 158xi Installation and Operation
2-6
RGB 138xi, RGB 158xi Installation and Operation
2-7
Installation and Operation, cont’d
properly. Flagging or bending at the top of the
video image is a sign that the serration pulses
should be removed.
Stereo audio output connector — This 3.5 mm,
5-conductor captive screw connector is used for
audio output. See “Cabling” in this chapter for a
wiring guide.
6
ON — When this switch is set to On, serration
pulses will be output in the vertical sync
interval.
Setting Internal Jumpers
OFF — When this switch is set to Off, serration
pulses will not be output.
The jumpers inside the interface(s) are set at the factory to meet
the requirements of most systems. However, you can change
a jumper setting to meet the needs of a particular system.
4 — 75 Ohm (video input termination) —
RGB 138xi only — Video termination is
accomplished in a number of ways when using a
universal interface like the RGB 138xi:
Changes to internal jumper settings must be
performed by authorized service personnel only.
The user-configurable, internal jumpers control the
following functions:
1. Setting the 75 ohm termination switch on the
interface when using an MBC cable without a
local monitor attached,
• horizontal and vertical sync polarity, and
• vertical sync pulse width.
2. Using a laptop breakout cable (LBC)
connected to a laptop or desktop computer
with no local monitor,
Follow these steps to change the jumper settings. The
RGB 138xi is shown for illustration, but the steps apply to
both models.
3. Connecting a local monitor to the breakout
from an MBC cable,
1. Remove power from the interface (if it is connected) by
disconnecting the AC power cord from the unit.
4. Using a termination adapter with an MBC
cable and no local monitor attached, or
2. Open the cover of the interface (the top half of the
enclosure), as shown below. Remove the screws
from the enclosure, and lift the cover straight up.
5. Using an MBC buffer cable.
The input to the interface is high impedance, and
for the video signal to be at a proper level (not
blooming) 75 ohm termination is needed for the
computer signal. The switch provides a method
of termination to prevent blooming
Do not touch any switches or electronic
components inside the interface. Doing so
could damage the interface.
Remove (12)
Screws
when a monitor breakout cable is used
but no local monitor or termination
adapter is connected.
ON — The RGB 138xi provides 75 ohm video
UNSWITCHED
input termination.
MAX.
TTS
A
600
W
OFF — The RGB 138xi provides Hi Z (high
impedance) video input termination.
Lift Cover
Straight Up
4 — SPARE — RGB 158xi only
This DIP switch does not have a
function in the RGB 158xi.
P
S
RGBE 138Dxi
A
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RGB 138xi
C
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Remove #8 Screws
(4 Places) Each Side
and Bracket, if Present
BNC output connectors — These BNC female
connectors are for red, green, and blue video output,
and horizontal, vertical and composite sync output.
5
Opening the interface cover
RGB 138xi, RGB 158xi Installation and Operation
2-8
RGB 138xi, RGB 158xi Installation and Operation
2-9
Installation and Operation, cont’d
3. Note the positions of jumpers J20 and J40 before
The jumpers perform the following functions:
changing jumper settings. The illustration of the
circuit board (below) shows the locations of the J20
and J40 jumpers. There are two possible setting
combinations for 3-pin jumpers:
J-20: Sync polarity jumper — This jumper adjusts
the output sync polarity. Horizontal (H) and
Follow Negative
vertical (V) sync output can either follow
input sync polarity, or be forced to negative.
1
pins 1 and 2 connected, and
• If the jumper is placed on pins 1 and 2, output
H and V sync polarities will be forced to
negative.
1 and 2
pins 2 and 3 connected.
• If the jumper is placed on pins 2 and 3, output
sync polarities follow input sync polarity:
the output sync signals’ polarity will be
the same as the input polarity.
2 and 3
This is the default setting.
Rear
J-40: Vertical sync width jumper — This jumper
adjusts the vertical sync pulse width. Some
digital display devices have very specific
Wide
1
Short
J19
requirements for incoming sync pulse width.
1
If no picture displays, the picture cuts in and
out, or the picture is scrambled, try adjusting
the vertical sync pulse width or switching
from ADSP to DDSP.
1
J20
J20: Sync polarity
1
jumper
J40
• If the jumper is placed on pins 1 and 2, the
output vertical sync pulse will be
short (narrow).
J40: Vertical sync
width jumper
• If the jumper is placed on pins 2 and 3, the
output vertical sync pulse will be wide.
This is the default setting.
Power Supply
5. Replace and fasten the enclosure cover, reversing step 2.
If adapter plates will be installed next, this step can
be omitted.
Front
Circuit board jumper locations
4. Configure the jumpers. To configure the jumpers, use
pliers to pull the jumper shunt off the pins, then
place the jumper on the appropriate pins.
Installing Adapter Plates
The RGB 138xi and RGB 158xi offer the ability to incorporate
a variety of optional architectural adapter plates for pass-
through audio and/or video connections. Each interface
can hold up to four (4) adapter plates.
Blank plates (two single height and one double height
plate) are included with the interface to cover unused
spaces. Other adapter plates must be ordered separately.
The plates attach to the front panel. Output cables attached
to the rear of each plate pass through the interface
enclosure and rear panel and are held in place by clamps.
Some adapters require wires to be soldered to the rear
connectors.
Changing jumper settings
RGB 138xi, RGB 158xi Installation and Operation
2-10
RGB 138xi, RGB 158xi Installation and Operation
2-11
Installation and Operation, cont’d
Adapter plates should be attached to the output cables and
interface before the interface is installed in a rack or in
furniture. The screws for installing the adapter plates are
built into the plates, so no additional screws will be needed.
Cable Routing
UNSWITCHED
MAX.
TTS
A
600
W
Adapter plate installation must be performed by
authorized service personnel only.
E
AG
LT
VO
H
G
HI
N
IO
Follow these steps to install adapter plates. The RGB 138xi
is shown for illustration, but the steps apply to both models.
UT
CA
P
S
RGBE 138Dxi
/A
W
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1. Make sure that the power is removed from the interface
by disconnecting the AC power cord from the unit.
G
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2. Open the cover of the interface (the top half of the
enclosure), as shown below. Remove the screws
from the enclosure, and lift the cover straight up.
Tighten nuts
securely
Do not touch any switches or electronic
components inside the interface. Doing so
could damage the interface.
Adapter Plate
Remove (12)
Screws
Routing adapter output cables and
attaching adapter plates
D
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W
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0
0
6
6. Insert the adapter plate screws through the holes in the
interface front panel, as shown above. Attach the
adapter plates to the enclosure with the provided
captive washers and #4-40 nuts.
Lift Cover
Straight Up
i
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S
8
3
P
1
D
B
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7. Gently pull excess cable out the rear panel openings.
Do not strain or damage the cable-adapter
connections.
RGB 138xi
C
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Remove #8 Screws
(4 Places) Each Side
and Bracket, if Present
8. Fasten the cables in place by tightening the screws on
the cable clamps provided on the rear panel openings.
Opening the interface cover
3. Remove the blank plates from the interface by
unscrewing the nuts that fasten the plates to the
inside of the enclosure.
4. Route the adapter output cables through the rear panel
cable holes and clamps into the enclosure and out
the front panel plate openings, as shown on the
facing page.
100-240
50/60 Hz 0.5A
9. Replace the top cover on the interface, and fasten it with
the screws removed in step 2.
5. Attach the output cables to the rear connectors of the
adapter plates. Soldering will be required for some
connectors.
RGB 138xi, RGB 158xi Installation and Operation
2-12
RGB 138xi, RGB 158xi Installation and Operation
2-13
Installation and Operation, cont’d
Mounting the Interfaces
Through-desk mounting
1. Attach the through-desk mounting brackets to the
interface with the provided machine screws.
Select the installation site. Take cabling and power
availability into consideration. Select an installation option:
tabletop/desktop placement, or under-desk, through-desk
or rack mounting.
2. Hold the interface with attached brackets against the
underside of the mounting surface of the desk or
table. With a soft pencil mark the location of holes
for screws on the desk. Mark the opening,
Tabletop/desktop placement
approximately 17.63” x 1.88” (44.77 cm x 4.76 cm).
For tabletop or desktop placement only, install the self-
adhesive rubber feet/pads (provided) onto the four corners
of the bottom of the interface enclosure.
3. Cut out the material from the installation area with a
jigsaw. Check the opening size by inserting the
interface part way through the hole. If needed, use a
saw, file or sandpaper to enlarge the hole. Smooth
the edges of the hole with sandpaper.
Under-desk mounting
1. Attach the mounting brackets to the interface with the
provided machine screws, as shown below.
4. Drill 1/4” (6.4 mm) deep, 3/32” (2.38 mm) diameter pilot
holes in the desk or table at the marked screw
locations. The holes should be drilled from the
underside or inside (concealed side) of the furniture,
where the interface will be located.
2. Hold the interface with attached brackets against the
underside of the desk or other furniture. Mark the
location of holes for screws on the desk.
3. Drill 1/4” (6.4 mm) deep, 3/32” (2.38 mm) diameter pilot
holes in the table or desk at the marked screw
5. Attach the interface to the desk with the provided wood
screws, as shown in the illustration below.
locations from the underside/inside (concealed side)
of the furniture, where the interface will be located.
4. Attach the interface to the installation surface with the
provided wood screws, as shown below.
.
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W
0
O
I
0
D
U
6
A
i
x
S
8
3
P
1
D
B
/A
G
W
R AC
E
F
R
E
X
T
A
IN
/M
IN
L
A
S
M
R
E
IV
N
U
C
B
M
S
G
O
T
U
P
L
A
IN
N
R
E
A
W
O
P
IO
D
U
A
To adjust the height of the interface within the desk,
slightly loosen the screws that attach the brackets to
the interface, adjust the height by sliding the
interface up or down, and retighten the screws.
Under-desk mounting
RGB 138xi, RGB 158xi Installation and Operation
2-14
RGB 138xi, RGB 158xi Installation and Operation
2-15
Installation and Operation, cont’d
Rack mounting
Cabling
1. Attach the through-desk/rack mounting brackets to the
Attach cables to the interface as detailed in the steps below.
A diagram later in this section shows how the system looks
when cabling is finished.
interface with the provided machine screws, as
shown below.
2. Attach the interface to the rack with the provided
machine screws.
1. Connect the computer’s video output to the interface’s
front panel analog/ECL 9-pin D connector. If the
computer will provide the audio input, a VGA with
audio combination cable, such as an Extron
VGA HRA series cable (#29-491-01 to #29-491-05),
can be used.
For the RGB 138xi, a monitor breakout cable (MBC)
can be used to allow local monitor output.
2. Connect the stereo audio source (computer or other
device such as a CD player or tape deck) to the front
panel. The audio jack should be wired as shown
below.
D
E
H
C
T
T
I
W
S
N
U
.
X
A
M
S
T
A
W
0
0
6
Tip (+)
Sleeve (GND)
i
x
8
3
P
S
1
D
B
/A
G
W
R AC
E
F
R
E
X
T
A
IN
/M
IN
L
A
S
M
R
E
IV
N
U
C
B
M
S
G
O
T
U
L
P
A
IN
N
R
E
A
W
O
P
IO
D
U
A
Ring (R, -)
Tip (L, +)
Sleeve (GND)
Rack mounting
3. Connect the video output device’s (projector’s,
monitor’s) coaxial BNC cable to the rear panel BNC
connectors.
R
G
B
For RGBHV (separate H and V sync) output,
connect the cables as shown at left.
H
V
S
RGBHV
R
H
G
V
B
S
For composite sync (RGBS), connect the sync
cable to the connector labeled “S”.
RGBS
R
H
G
V
B
S
For sync on green (SOG, RGsB), connect the
cables as shown here, and also select the SOG
option on the rear panel DIP switch.
RGsB
4. Connect the local monitor. For the RGB 158xi, connect
the monitor’s cable to the front panel 15-pin HD
female local monitor output connector.
For the RGB 138xi, a local monitor can be connected
to the monitor breakout cable if one were used in
RGB 138xi, RGB 158xi Installation and Operation
2-16
RGB 138xi, RGB 158xi Installation and Operation
2-17
Installation and Operation, cont’d
step 1 to connect the computer to the interface. Set
the front panel monitor ID bit DIP switches to On if
no local monitor will be used.
LBC w/ Audio
Cable
Through-desk or
Rack Mounted
5. Connect powered speakers or another audio device to
the rear panel captive screw connector. Follow the
wiring guide shown below. Insert the wires into the
appropriate openings. Tighten the screws on top to
fasten the wires, then insert the wired audio
connector into the audio output connector on the
interface rear panel.
AC Power
UNSWITCHED
MAX.
TTS
A
W
0
60
Mounted under
a Desk
i
x
S
8
3
P
1
D
B
G
/A
W
R
E
C
A
F
R
Network
E
X
T
A
IN
/M
IN
L
A
S
M
R
E
IV
N
U
Connection
C
B
M
S
G
LO
T
U
P
A
IN
N
R
E
A
Audio
ARE
I
O
D
U
S
A
S
DSP
T
L/
K
5
0
E
A
V
E
LE
P
0.
%
8V
Front
Y
IT
N
U
0
%
10
9V
0.
Connect the sleeve to ground (GND).
Connecting the sleeve to a negative (-)
terminal will damage the audio output circuits.
5A
0.
0V
24
0-
10
Rear
or
Sample Modular Connector Plates
RGB 138xi
Monitor
Projector
Unbalanced Output
2 - BNC
2 - RCA
2 - 3.5mm Stereo mini
DB9
Tip
See Warning
Sleeve (s)
Tip
Power
2 - S-Video
HD15
See Warning
2 - F Connectors
1 - S-Video / 2 - RCA
Through-desk or
Rack Mounted
or
Balanced Output
Mounted under
a Desk
Tip
Ring
UNSWITCHED
MAX.
TTS
A
Sleeve (s)
Tip
600
W
AC Power
Ring
Network
Connection
i
x
S
8
5
P
1
D
B
/A
G
W
R
E
C
A
F
R
E
X
T
A
IN
/M
IN
L
A
S
M
R
E
IV
N
U
L
A
T
Wiring captive screw connectors for audio output
C
T
O
U
L
O
U
P
D
E
R
R
E
F
I
F
O
U
M
TO
B
N
I
I
Audio
S
A
OG
T
L
A
U
P
N
ARE
IN
S
S
DSP
S
L/
E
A
8V
V
E
IO
LE
K
D
U
P
0
%
A
5
0.
Front
Y
IT
N
U
0
%
10
9V
0.
6. Set the DIP and toggle switches. Use the “Front Panel”
and “Rear Panel” sections of this chapter as a guide.
5A
0.
0V
24
0-
10
Rear
7. Connect power cords and turn on the devices in the
following order: display and audio output devices
(projectors, monitors, speakers), interface, and input
device (computer).
RGB 158xi
Monitor
or
Projector
The system is now ready for operation.
PC Computer
Power
The illustration on the facing page shows typical system
installation and cable connections for both models.
Typical RGB 138 and RGB 158 installation and cable setups
RGB 138xi, RGB 158xi Installation and Operation
2-18
RGB 138xi, RGB 158xi Installation and Operation
2-19
Installation and Operation, cont’d
Troubleshooting
RGB 138xi, RGB 158xi
When the interface, computer and output devices have
been properly installed, and the power is turned on, the
image should appear on screen, and sound should be
audible.
If the image does not appear or there is no sound
1. Ensure that all devices are plugged in.
2. Make sure that each device is receiving power. The
power indicator LED should light if the interface is
powered on.
3. Check the cabling and the audio connector wiring, and
make adjustments as needed.
4. Verify that the video input termination DIP switch on
the RGB 138xi and the ID bit termination DIP
switches on the RGB 158xi have been set correctly.
5. For digital display devices, try switching between ADSP
and DDSP using the rear panel DDSP DIP switch.
Appendix A
6. Call Extron’s customer support hotline if needed.
If the image does not display correctly
A
1. If the output image looks too green, make sure that the
sync on green feature (SOG DIP switch) is turned
off.
2. If the picture bends or flags at the top of the screen, set
the SERR (serration pulse) DIP switch to Off.
Specifications
3. For a display device that experiences intermittent
glitches, try switching between ADSP and DDSP
using the rear panel DDSP DIP switch.
4. If the picture “hangs off” the edges of the screen, adjust
the centering controls.
5. If the edges of the image seem to exceed their
boundaries or if thin lines and sharp edges look
thick and fuzzy, try changing the GAIN/PEAK
setting.
6. If the image still does not display correctly, call Extron’s
customer support hotline.
RGB 138xi, RGB 158xi Installation and Operation
2-20
Specifications
Video input
Sync
Number/type............................... 1 analog RGBHV, RGBS, RGsB, RsGsBs
Input type ..................................... RGBHV TTL ( ), RGBS TTL ( ),
RGsB 0.3V (-), RsGsBs 1.3V (-)
Connectors ................................... RGB 138xi .. 1 9-pin D male, MBC/LBC
cable or buffer
Output type .................................. RGBHV ( ), RGBS( ), RGsB (-)
RGB 158xi ... 1 15-pin HD male
Nominal level(s) .......................... Analog — 0.3V to 1.5V p-p
Maximum level(s) ....................... Analog — 1.5V p-p
Impedance .................................... 75 ohms or Hi Z, switchable
(The default is Hi Z.)
Horizontal frequency ................. Autoscan 15 kHz to 130 kHz
Vertical frequency ....................... Autoscan 30 Hz to 120 Hz
Return loss .................................... -30dB @ 5 MHz
Maximum DC offset ................... 4.0V
Input level..................................... 2.0V to 5.5V p-p
with 0.2VDC offset (max.)
Output level ................................. 4.0V to 5.0V p-p
Input impedance ......................... 10 kohms
Output impedance ...................... 75 ohms
Max. propagation delay ............. 48 nS
Max. rise/fall time ...................... 3.5 nS
Polarity ........................................... RGBHV ........................ when RGBHV is
input, polarity
follows input;
otherwise negative
RGBS, RGsB ................ negative
Video throughput
Gain ............................................... Unity (0.700V p-p),
0.725V p-p with 50% peaking,
Audio input
0.750V p-p with 100% peaking
Number/type............................... 1 PC level stereo, unbalanced
Bandwidth .................................... 300 MHz (-3dB)
Connectors.................................... 1 3.5 mm stereo jack, 2 channel;
tip (L), ring (R), sleeve (ground)
Video output
Impedance .................................... 10 kohms, DC coupled
Minimum level ............................ 100mV
Number/type/format ................ 1 analog RGBHV, RGBS, RGsB
Connectors ................................... RGB 138xi .. 6 BNC female
Maximum level ............................ +8.5dBu,(unbalanced) @ stated %THD+N
RGB 158xi ... 6 BNC female
1 15-pin HD female local
monitor output (buffered)
Audio throughput
Nominal level............................... Analog 0.700V p-p, 0.725V p-p, or
0.750V p-p
Gain ............................................... Unbalanced 0dB, balanced +6dB
Frequency response .................... 0.05dB @ 20 Hz to 20 kHz
Impedance .................................... 75 ohms
Return loss .................................... -30dB @ 5 MHz
THD + Noise ................................ 0.03% @ 1 kHz, 0.3% @ 20 kHz at rated
maximum output drive
S/N ................................................ >90dB, output 14dBu, balanced
Stereo channel separation .......... >95dB @ 1 kHz to 20 kHz
Audio output
Number/type............................... 1 stereo (2 channel), balanced/unbalanced
Connectors.................................... 3.5 mm stereo captive screw terminal,
5 conductor, for left and right output
Impedance .................................... 50 ohms, unbalanced, 100 ohms balanced
Gain error ..................................... 0.1dB channel to channel
Drive (600 ohm) ........................... +14dBu, balanced at stated %THD+N
RGB 138xi, RGB 158xi Specifications
A-2
RGB 138xi, RGB 158xi Specifications
A-3
Specifications, cont’d
General
RGB 138xi, RGB 158xi
Power ............................................ 100VAC to 240VAC, 50/60 Hz, 15 Watts,
internal, auto-switchable
MBC power jack .......................... 9.0VDC, 150 mA
Temperature/humidity ............. Storage -40° to +158°F (-40° to +70°C) /
10% to 90%, non-condensing
Operating +32° to +122°F (0° to +50°C) /
10% to 90%, non-condensing
Rack mount .................................. Yes, with included kit #70-077-03
Furniture mount .......................... Yes, with optional kit #70-077-01 (under
desk) or included kit #70-077-03 (through
desk/rack mount)
Enclosure type ............................. Metal
Enclosure dimensions ................ 1.75" H x 17.50" W x 6.00" D
4.45 cm H x 44.45 cm W x 15.24 cm D
Shipping weight .......................... 7 lbs (3.2 kg)
Vibration ....................................... NSTA 1A in carton
(National Safe Transit Association)
Approvals ..................................... UL, CE, FCC Class A
MTBF ............................................. 30,000 hours
Appendix B
Warranty ....................................... 2 years parts and labor
B
Specifications are subject to change without notice.
Accessories and Part Numbers
Included Parts
Accessories
Cables
Adapter Plates
RGB 138xi, RGB 158xi Specifications
A-4
Accessories and Part Numbers
Included Parts
Laptop breakout cables* (RGB 138xi ) Part number
These items are included in each order for an RGB 138xi or
RGB 158xi :
LBC VGA HR 6’
26-244-01
26-363-01
26-443-02
26-444-02
26-445-02
LBC Mac HR 6’
Included parts
Part number
LBC Sun HR 6’ A (61 kHz) (w/audio)
LBC Sun HR 6’ A (71 kHz) (w/audio)
LBC Sun HR 6’ A (81 kHz) (w/audio)
RGB 138xi
60-292-01
60-292-02
60-294-01
60-294-02
70-090-01
70-090-02
RGB 138xi (Europe)
RGB 158xi
*Laptop breakout cables are also available in 3’ and 12’ lengths.
RGB 158xi (Europe)
Blank adapter plates, single height
Blank adapter plate, double height
Adapter kits for RGB 138xi
Part number
Mac 15-pin HD adapter cable kit
70-078-01
Through-desk/rack mounting bracket kit 70-077-03
Mac 15-pin HD adapter cable kit w/audio 70-078-02
13W3 15-pin HD adapter cable kit 70-079-01
13W3 15-pin HD adapter cable kit w/audio 70-079-02
3.5 mm, 5-pole captive screw connector
10-319-10
Accessories
High-resolution cables
Part number
Accessories
Part number
BNC-5-3’HR
26-260-15
26-260-01
26-260-02
26-260-03
26-260-04
26-260-16
26-260-05
26-378-01
26-378-02
26-378-03
26-378-04
26-378-05
26-378-06
26-378-07
Under-desk mounting bracket kit
3.5 mm stereo plug
70-077-01
10-306-01
BNC-5-6’HR
BNC-5-12’HR
BNC-5-25’HR
Cables
BNC-5-50’HR
Input VGA cables (for RGB 158xi )
Part number
BNC-5-75’HR
VGA 6’ HR
26-112-15
29-491-01
29-491-02
29-491-03
BNC-5-100’HR
VGA 3’ HR A (with audio)
VGA 6’ HR A (with audio)
VGA 12’ HR A (with audio)
BNC-5-3’HRP (plenum)
BNC-5-6’HRP (plenum)
BNC-5-12’HRP (plenum)
BNC-5-25’HRP (plenum)
BNC-5-50’HRP (plenum)
BNC-5-75’HRP (plenum)
BNC-5-100’HRP (plenum)
Monitor breakout cables (RGB 138xi) Part number
MBC VGA/XGA HR
MBC Mac Quadra
MBC Sun Sparc HR
MBC SGI/13W3 HR
26-162-01
26-018-01
26-424-01
26-425-01
Bulk installation cable
(14-conductor, non-plenum), 500’ HR
22-120-02
22-111-03
Bulk installation cable
(17-conductor, plenum), 500’ HR
RGB 138xi, RGB 158xi Accessories and Part Numbers
B-2
RGB 138xi, RGB 158xi Accessories and Part Numbers
B-3
Accessories and Part Numbers, cont’d
Adapter Plates
A variety of optional architectural adapter plates for
pass-through connections may be ordered for these
interfaces. The RGB 138xi and RGB 158xi can each hold up
to four (4) adapter plates. The following configurations of
adapters could be installed in either interface:
• four adapter plates with a “plate size” of one,
• two adapter plates with a plate size of one and one
adapter plate with a plate size of two, or
• two adapter plates of plate size two.
The tables on the following pages list the available adapter
plates.
Blank Plate (no connector)
Single Space
Blank Plate (no connector)
Double Space
2 - BNC
5 - BNC (Double)
3 - BNC
2 - RCA to Solder Cups
3 - RCA to Solder Cups
2 - S-video
2 - RJ-11
1 - D-9 Pass Through Connector
1 - HD-15 Pass Through Connector
2 - F Connectors
2 - 1/4" Stereo Phono
2 - 3.5mm Stereo Mini
1 - 3-pin XLR Connector
Architectural adapter plates
RGB 138xi, RGB 158xi Accessories and Part Numbers
B-4
RGB 138xi, RGB 158xi Accessories and Part Numbers
B-5
Single Type Connector Architectural Adapter Plates
Plate
size
Front
connector type
Rear
connector type
Adapter plate description
Part # Gray Black White
Blank plate 1
1
2
1
1
2
1
1
n.a.
n.a.
n.a.
70-090
70-090
70-091
70-091
70-091
70-092
70-092
-01
-02
-01
-02
-03
-01
-02
-11
-12
-11
-12
-13
-11
-12
-21
-22
-21
-22
-23
-21
-22
Blank plate 2
n.a.
2 BNC barrel (female to female)
3 BNC barrel (female to female)
5 BNC barrel (female to female)
2 RCA female to solder cups
3 RCA female to solder cups
BNC female
BNC female
BNC female
BNC female
solder lug terminals
solder lug terminals
BNC female
BNC female
RCA female (red/black)
RCA female (red/black)
2 RCA female barrel
(female to female)
1
1
1
1
1
RCA female (red/black)
RCA female (red/black)
RCA female (red/black)
RCA female (red/black)
4-pin mini DIN female
RCA female
RCA female
70-093
70-093
70-094
70-094
70-095
-01
-02
-01
-02
-01
-11
-12
-11
-12
-11
-21
-22
-21
-22
-21
3 RCA female barrel
(female to female)
2 RCA to BNC barrel
(female to female)
BNC female
3 RCA to BNC barrel
(female to female)
BNC female
2 S-video to S-video barrel
(female to female)
4-pin mini DIN female
2 F connector barrel
2 ¼" stereo phono female
2 ¼" mono phono female
2 3.5mm mini stereo female
2 RJ-11 (female to female)
2 RJ-45 (female to female)
1 HD-15 (female to female)
1 HD-15 (male to male)
1 D-9 (female to female)
1 D-9 (male to male)
1
1
1
1
2
2
1
1
1
1
2
2
2
F connector female
¼" stereo phono female
¼" mono phono female
3.5mm mini stereo female
RJ-11 female
F connector female
3 solder lug terminals
2 solder lug terminals
3 solder lug terminals
RJ-11 female
70-096
70-097
70-097
70-098
70-099
70-100
70-101
70-101
70-102
70-102
70-103
70-103
70-103
-01
-01
-02
-01
-01
-01
-01
-02
-01
-02
-01
-02
-03
-11
-11
-12
-11
-11
-11
-11
-12
-11
-12
-11
-12
-13
-21
-21
-22
-21
-21
-21
-21
-22
-21
-22
-21
-22
-23
RJ-45 female
RJ-45 female
15-pin HD female
15-pin HD male
15-pin HD female
15-pin HD male
9-pin D female
9-pin D female
9-pin D male
9-pin D male
1 3-pin XLR female
3-pin XLR female
4-pin XLR female
6-pin XLR female
3 solder lug terminals
3 solder lug terminals
3 solder lug terminals
1 4-pin XLR female
1 6-pin XLR female
2 6-pin mini DIN
(keyboard/mouse)
1
1
6-pin mini DIN female
6-pin mini DIN female
solder cups
70-104
70-105
-01
-01
-11
-11
-21
-21
1 3.5mm, 5 pole
captive screw terminal
3.5mm, 5 pole
captive screw terminal
1 contact closure switch/
LED show-me and
3.5mm stereo mini jack
contact closure switch and
3.5mm mini stereo jack
1
solder cups
70-106
-01
-11
-21
Accessories and Part Numbers, cont’d
RGB 138xi, RGB 158xi Accessories and Part Numbers
B-8
|