User’s Manual
GLI 350xi and ADA 2/GLI 350xi
Ground Loop Isolator and RGBHV Distribution
Amplifier with Ground Loop Isolator
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
800.633.9876 714.491.1500
FAX 714.491.1517
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort, The Netherlands
+800.3987.6673 +31.33.453.4040
FAX +31.33.453.4050
Extron Electronics, Asia
135 Joo Seng Rd. #04-01
PM Industrial Bldg., Singapore 368363
+800.7339.8766 +65.6383.4400
FAX +65.6383.4664
Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
68-1445-01 Rev. B
11 07
+81.3.3511.7655 FAX +81.3.3511.7656
© 2007 Extron Electronics. All rights reserved.
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警告
安全须知 • 中文
这个符号提示用户该设备用户手册中
电源 • 该 设 备 只 能 使 用 产 品 上 标 明 的 电 源 。 设 备
必 须 使 用 有 地 线 的 供 电 系 统 供 电 。 第 三 条 线
（ 地 线 ） 是 安 全 设 施 ， 不 能 不 用 或 跳 过 。
拔掉电源 • 为安全地从设备拔掉电源，请拔掉所有设备后
或桌面电源的电源线，或任何接到市电系统的电源线。
电源线保护 • 妥善布线， 避免被踩踏，或重物挤压。
有重要的操作和维护说明。
这个符号警告用户该设备机壳内有暴
露的危险电压，有触电危险。
维护 • 所有维修必须由认证的维修人员进行。 设备内部没
有用户可以更换的零件。为避免出现触电危险不要自己
试图打开设备盖子维修该设备。
注意
阅读说明书 • 用 户 使 用 该 设 备 前 必 须 阅 读 并 理
解 所 有 安 全 和 使 用 说 明 。
保存说明书 • 用户应保存安全说明书以备将来使
用。
通风孔 • 有些设备机壳上有通风槽或孔，它们是用来防止
机内敏感元件过热。 不要用任何东西挡住通风孔。
锂电池 • 不正确的更换电池会有爆炸的危险。 必须使用与
厂家推荐的相同或相近型号的电池。 按照生产厂的建
议处理废弃电池。
遵守警告 • 用户应遵守产品和用户指南上的所有安
全和操作说明。
避免追加 • 不要使用该产品厂商没有推荐的工具或
追加设备，以避免危险。
FCC Class A Notice
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation. The Class A limits are designed to
provide reasonable protection against harmful interference when the equipment is operated in
a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to
cause harmful interference, in which case the user will be required to correct the interference at his
own expense.
This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used
with the unit to ensure compliance with FCC emissions limits.
N
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Table of Contents
Features......................................................................................... 1-2
Accessories .........................................................................................A-1
All trademarks mentioned in this manual are the properties of their respective owners.
68-1445-01.Rev. B
11.07
GLI 350xi & ADA 2/GLI 350xi • Table of Contents
TOC-i
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Introduction
About the GLI 350xi and ADA 2/GLI 350xi
GLI 350xi & ADA 2/GLI 350xi
This manual contains information about the Extron
GLI 350xi ground loop isolator and the Extron ADA 2/GLI
350xi distribution amplifier with built-in ground loop isolator.
Extron ground loop isolators eliminate "hum" bars and common
mode noise caused by improper equipment grounding in video
systems.
Both models are rack and furniture mountable. The GLI 350xi
is a one-input, one-output model; the ADA 2/GLI 350xi is a
one-input, two-output unit. The terms "GLI" and "ground loop
isolator" are used interchangeably in this manual to refer to
either model.
Features
NTSC, PAL, and SECAM compatible — Both models are
NTSC, PAL, and SECAM compatible with computers
and other high resolution sources that output RGBHV,
RGBS, RsGsBs, and RGsB video. The RGB channels are
also compatible with low resolution video signals in
component, S-video, and composite video formats.
Chapter Two
Bandwidth — 350 MHz (-3 dB) RGB video bandwidth, fully
2
loaded
Video input horizontal frequency range — 15 kHz - 135 kHz
Mounting options — The GLIs are rack and furniture
mountable.
Installation
Application.Examples
Mounting.the.GLI.350xi.and.ADA.2/GLI.350xi
GLI 350xi & ADA 2/GLI 350xi • Introduction
1-2
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Installation
Application Example
Mounting the GLI 350xi and ADA 2/GLI 350xi
The following illustration is an application example for the
The GLI 350xi and ADA 2/GLI 350xi ground loop isolators can
be set on a table, mounted on a rack shelf, or mounted under a
desk or other furniture.
GLI 350xi.
Install the GLI near the display device(s) rather than near
the source device. See the previous application example
illustration.
N
Extron
GLI 350xi
Ground Loop
Isolator
Projector
Tabletop use
G
L
N
G
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D
R
3
O
5
O
U
0
xi
P
L
S
E
O
R
I
S
I
E
O
O
S
R
L
A
T
Four self-adhesive rubber feet are included with the ground
loop isolator.
For tabletop use, attach one foot at each corner of the bottom
side of the unit and place the unit in the desired location.
Extron
RGB 109xi
UL rack mounting requirements
Interface
The following Underwriters Laboratories (UL) requirements
pertain to the safe installation of the equipment in a rack.
IN
P
U
T
B
Front
U
F
M
F
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1
1
N
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P
N
I
H
P
.
D
S
H
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D
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IF
T
Rear
1.
Elevated operating ambient temperature — If the unit
is installed in a closed or multi-unit rack assembly, the
operating ambient temperature of the rack environment
may be greater than room ambient temperature.
Therefore, install the equipment in an environment
compatible with the maximum ambient temperature
(Tma = +104 °F, +40 °C) specified by Extron.
V
G
A
IN
T
E
R
G
R
F
B
A
C
1
0
E
9
W
x
i
P
U
P
/A
T
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D
E
S
T
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R
A
O
G
P
S
R
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P
S
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S
A
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S
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0
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EL
K
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-2
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%
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0%
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V
.9
0
z
H
0
/6
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5
2.
3.
4.
Reduced air flow — Install the equipment in a rack so that
the amount of air flow required for safe operation of the
equipment is not compromised.
Local Monitor
PC
Mechanical loading — Mount the equipment in the rack so
that a hazardous condition is not achieved due to uneven
mechanical loading.
GLI 350xi application example
Circuit overloading — Connect the equipment to
the supply circuit and consider the effect that circuit
overloading might have on overcurrent protection and
supply wiring. Appropriate consideration of equipment
nameplate ratings should be used when addressing this
concern.
5.
Reliable earthing (grounding) — Maintain reliable
grounding of rack-mounted equipment. Pay particular
attention to supply connections other than direct
connections to the branch circuit (e.g., use of power strips).
GLI 350xi & ADA 2/GLI 350xi • Installation
GLI 350xi & ADA 2/GLI 350xi • Installation
2-2
2-3
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Installation, cont’d
Rack mounting
6" Deep Rack Shelf
The ground loop isolators can be mounted in a rack shelf using
the optional RSU 129 1U 9.5" deep universal rack shelf kit
(Extron part #60-190-01) or the RSU 126 1U 6" deep universal
rack shelf kit (Extron part #60-190-10), as follows.
1.
If feet were installed on the bottom of the GLI, remove
them.
2.
Place the GLI on one half of the 1U (one unit high, 19"
wide) rack shelf. Align the front of the GLI with the front
of the shelf, and align the threaded holes on the bottom of
the GLI with the holes in the rack shelf.
1/2 Rack Width False Front
Face Plate
1/4 Rack Width False Front
Face Plate
3.
Attach the GLI to the rack shelf with the two provided
4-40 x 3/16” machine screws. Insert the screws from
the underside of the shelf, and securely fasten them into
diagonally opposite corners.
(2) 4-40 x 3/16"
Screws
GL
G
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RO
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5
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0
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x
P
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S
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ER
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ES
A
O
Use 2 mounting holes
on opposite corners.
IS
O
L
T
O
R
See the following illustrations of rack mounting using
Extron's RSU 129 universal 9.5 " deep and RSU 126
universal 6" deep rack shelves.
Rack mounting of the GLI in a 6" deep rack shelf
4.
Attach the false front panels (provided with rack shelf kit
part #60-190-01 or 60-190-10) to the unoccupied side of the
rack (as shown above), as desired.
9.5" Deep Universal Rack Shelf
1/2 Rack Width Front False
Faceplate
5.
Attach the rack shelf to the rack using four 10-32 x ¾” bolts
(provided). Insert the bolts through #10 beveled washers,
then through the holes in the rack, as shown above.
1/4 Rack Width Front False
Faceplate
Both front false faceplates
use 2 screws.
(2) 4-40 x 3/16"
Screws
G
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5
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x
P
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S
E
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IS
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E
O
S
R
L
A
T
O
Use 2 mounting holes on
opposite corners.
Rack mounting of the GLI in a 9.5" deep rack shelf
GLI 350xi & ADA 2/GLI 350xi • Installation
GLI 350xi & ADA 2/GLI 350xi • Installation
2-4
2-5
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Installation, cont’d
Under-furniture mounting
GLI 350xi & ADA 2/GLI 350xi
The GLI 350xi or ADA 2/GLI 350xi can be mounted under
furniture, such as a desk or table, using the optional MBU 125
mounting kit (Extron part #70-077-01), as follows.
1.
If rubber feet were previously installed on the bottom of
the unit, remove them.
2.
Attach the mounting brackets to the GLI with the provided
machine screws.
Chapter Three
3
Under-furniture mounting of the GLI
3.
4.
5.
6.
7.
Hold the unit with the brackets attached against the
underside of the table or other furniture. Mark the location
of the screw holes of the bracket on the mounting surface.
Operation
Front.Panel.Features.and.Operation
Rear.Panel.Features.and.Operation
Drill four pilot holes, each 3/32" (2 mm) in diameter by
1/4" deep (6.3 mm) in the mounting surface at the marked
screw locations.
Insert #8 wood screws into the four pilot holes. Tighten
each screw into the mounting surface until just less than
1/4" (6.3 mm) of the screw head protrudes.
Align the mounting screws with the slots in the brackets
and place the unit against the surface, with the screws
through the bracket slots.
Slide the unit slightly forward or back, then tighten all four
screws to secure the unit in place.
GLI 350xi & ADA 2/GLI 350xi • Installation
2-6
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Operation
Front Panel Features and Operation
Rear Panel Features and Operation
GLI 350xi
GLI 350xi SERIES
GROUND LOOP ISOLATOR
R
B
G
V
H/HV
1
H/
R
B
G
V
HV
POWER
12V
0.5A MAX
1
2
2
GLI 350xi Rear Panel
GLI Front Panel
3
Power indicator LED — This LED lights green when the GLI is
receiving full power.
a
b
Video input — These BNC connectors accept RGBHV, RGBS,
RGsB, RsGsBs, component video, composite video, and S-video
inputs. Connect coaxial cables to the inputs, as follows:
1
H/
R
B
G
V
HV
POWER
12V
0.5A MAX
R
G
B
H/HV
V
R
G
B
H/HV
V
R
G
B
H/HV
V
RGBHV
RGBS
RGsB or RsGsBs
2
GLI ADA 2/350xi Rear Panel
R
R
R
G
B
H/HV
V
G
B
H/HV
V
G
B
H/HV
V
(R-Y)
(Y)
(B-Y)
(V)
(Y)
(C)
AC power connector — Connect the attached external power
supply to a 100 VAC to 240 VAC, 50/60 Hz power source.
a
b
Component
Composite
S-video
Video output 1 — These BNC connectors accept RGBHV, RGBS,
RGsB, RsGsBs, component video, composite video, and S-video
inputs. Connect coaxial cables to the outputs, as follows:
R
G
B
H/HV
V
R
G
B
H/HV
V
R
G
B
H/HV
V
RGBHV
RGBS
RGsB or RsGsBs
R
R
R
G
B
H/HV
V
G
B
H/HV
V
G
B
H/HV
V
(R-Y)
(Y)
(B-Y)
(V)
(Y)
(C)
Component
Composite
S-video
The GLI does not convert video formats. The video format
on output is the same as the input video format.
N
GLI 350xi & ADA 2/GLI 350xi • Operation
GLI 350xi & ADA 2/GLI 350xi • Operation
3-2
3-3
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Operation, cont’d
Video output 2 (ADA 2/GLI 350xi only) — These BNC
GLI 350xi & ADA 2/GLI 350xi
c
connectors accept RGBHV, RGBS, RGsB, RsGsBs, component
video, composite video, and S-video inputs. Connect coaxial
cables to the outputs, as shown in the previous illustration.
Appendix A
A
Specifications, Part Numbers,
and Accessories
Specifications
Included.Parts.
Optional.Accessories
GLI 350xi & ADA 2/GLI 350xi • Operation
3-4
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Specifications, Part Numbers, and Accessories
Sync
Specifications
Input type ...................................... RGBHV, RGBS, RGsB, RsGsBs
Video
Output type.................................... RGBHV, RGBS, RGsB, RsGsBs (follows
input)
Gain ................................................ Unity
Tri-level on Y, R-Y, B-Y channels
(component video 720p, 1080i, 1080p)
Bi-level on Y channel (for all other
component video rates)
Bandwidth ..................................... 350 MHz (-3 dB), fully loaded
Video input
Number/signal type..................... 1 UXGA-QXGA RGBHV, RGBS, RGsB,
RsGsBs, component video, S-video,
composite video
Connectors .................................... 5 female BNC
Nominal level ................................ 1 Vp-p for Y of component video and
S-video, and for composite video
Input level ..................................... RGBHV, RGBS (min./max.): 0.5 V to
5.0 Vp-p (analog/TTL)
RGsB (nominal): 0.3 Vp-p (analog)
Output level .................................. 0.3 V to 1.5 Vp-p, unterminated
Input impedance .......................... 510 ohms
Output impedance ....................... 75 ohms
Max. propagation delay ............... H = 60 ns, V = 226 ns
Max. rise/fall time ........................ 4 ns
0.7 Vp-p for RGB and for R-Y and B-Y of
component video
0.3 Vp-p for C of S-video
Minimum/maximum levels........ Analog: 0.3 V to 1.5 Vp-p with no offset
Impedance ..................................... 75 ohms
Polarity............................................ Positive or negative (follows input)
General
Horizontal frequency.................... 15 kHz to 135 kHz
Vertical frequency.......................... 30 Hz to 150 Hz
Return loss ..................................... <-39 dB @ 5 MHz
DC offset (max. allowable)........... 0.2 V
External power supply (attached) 100 VAC to 240 VAC, 50/60 Hz, external;
to 12 VDC, 1 A, regulated
Power input requirements........... 12 VDC, 0.5 A
Temperature/humidity................ Storage: -40 to +158 °F (-40 to +70 °C) /
10% to 90%, noncondensing
Operating: ..................................... +32 to +104 °F (0 to +40 °C) / 10% to 90%,
noncondensing
Video output
Number/signal type
ADA 2/GLI 350xi.............. 2 RGBHV, RGBS, RGsB, RsGsBs,
component video, S-video, composite
video
GLI 350xi ............................ 1 RGBHV, RGBS, RGsB, RsGsBs,
component video, S-video, composite
video
Cooling ........................................... Convection, unvented
Rack mount.................................... Yes, with optional 1U, 9" deep rack shelf
(RSU 129, #60-190-01; or RSB 129, #60-
604-01); 1U, 6" deep rack shelf (RSU 126,
#60-190-10; RSB 126, 60-604-10).
Also furniture mountable with optional
MBU 125 under-desk mounting kit, part
#70-077-01.
Connectors
ADA 2/GLI 350xi.............. 2 x 5 BNC female
GLI 350xi ............................ 5 BNC female
Nominal level ................................ 1 Vp-p for Y of component video and
S-video, and for composite video
Enclosure type .............................. Metal
Enclosure dimensions .................. 1.7" H x 4.3" W x 6.0" D (1U high, quarter
rack wide)
4.3 cm H x 11.0 cm W x 15.2 cm D
(Depth excludes connectors.)
Product weight .............................. 0.8 lbs (0.4 kg)
Shipping weight ........................... 2 lbs (1 kg)
Vibration ........................................ ISTA 1A in carton (International Safe
Transit Association)
0.7 Vp-p for RGB and for R-Y and B-Y of
component video
0.3 Vp-p for C of S-video
Minimum/maximum levels........ Analog: 0.3 V to 1.5 Vp-p (follows input)
Impedance ..................................... 75 ohms
Return loss ..................................... <-45 dB @ 5 MHz
DC offset ........................................ 10 mV
GLI 350xi & ADA 2/GLI 350xi • Specifications, Parts, Accessories
GLI 350xi & ADA 2/GLI 350xi • Specifications, Parts, Accessories
A-2
A-3
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Specifications, Part Numbers, Accessories, cont’d
Listings............................................ UL, CUL
Compliances................................... CE, FCC Class A, VCCI, AS/NZS, ICES
MTBF............................................... 30,000 hours
Included Parts
These items are included in each order of the GLI 350xi or
ADA 2/GLI 350xi.
Warranty ........................................ 3 years parts and labor
Included parts
Replacement part
number
All nominal levels are at 10%.
N
N
GLI 350xi one-input, one-
output ground loop isolator
60-223-03
Specifications are subject to change without notice.
or
(7.52-112707-D4)
ADA 2/GLI 350xi one-input,
two-output ground loop
isolator
60-230-03
Product label
(4) rubber feet (detached)
IEC power cord
Tweeker (small screwdriver)
User’s manual
Optional Accessories
Accessory
Part number
60-190-01
RSU 129 1U 9.5" deep universal rack
shelf kit
RSB 129 1U 9.5" deep basic rack shelf
60-604-01
RSU 126 1U 6" deep universal rack shelf
kit
60-190-10
RSB 126 1U 6" deep basic rack shelf
MBU 125 1U under-desk mount kit
60-604-10
70-077-01
GLI 350xi & ADA 2/GLI 350xi • Specifications, Parts, Accessories
GLI 350xi & ADA 2/GLI 350xi • Specifications, Parts, Accessories
A-4
A-5
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Specifications, Part Numbers, Accessories, cont’d
GLI 350xi & ADA 2/GLI 350xi • Specifications, Parts, Accessories
GLI 350xi & ADA 2/GLI 350xi • Specifications, Parts, Accessories
A-6
A-7
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Specifications, Part Numbers, Accessories, cont’d
GLI 350xi & ADA 2/GLI 350xi • Specifications, Parts, Accessories
A-8
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