www.extron.com
© 2008 Extron Electronics. All rights reserved.
Pricing and specifications may change without notice.
USA West
+1.714.491.1500 / +80 0.633.9876
+1.714.491.1517 FAX
USA East
+1.919.86 3.1794 / +80 0.633.9876
+1.919.86 3.1797 FA X
China
+ 86.21.3760.1568 / +4 00.883.1568
+ 86.21.3760.1566 FAX
Japan
+81.3. 3511.7655
+81.3. 3511.7656 FAX
Europe
+31.33 .453.4 040 / +800. 3987.6673
+31.33 .453.4 050 FA X
Dubai
+97 1.4.299 1800
+97 1.4.299 1880 FAX
Asia
+65.6 383.440 0 / +800.7339. 8766
+65.6 383.4664 FAX
GLI 350xi
One-Input, One-Output Ground Loop Isolator
G r o u n d l o o p i n h i b i t o r S & i S o l a t o r S
FeaTur es
• Eliminates hum bars and common mode noise
• Active differential amplifier for electronic noise cancellation
• 350 MHz (-3 dB) RGB video bandwidth, fully loaded
• Horizontal frequency range of 15-135 kHz
• Compatible with RGBHV, RGBS, RsGsBs, and RGsB video
• Compatible with NTSC, PAL, and SECAM on RGB channels
• Rugged, metal enclosure
• Rack mountable or other versatile mounting options
• External universal power supply attached
descr IPT Ion
The Extron GLI 350xi is an active one-input, one-output ground loop isolator that eliminates
video hum bars and common mode noise caused by improper equipment grounding in video
systems. It provides ground loop isolation for a variety of signals, including RGBHV, RGBS,
RsGsBs, RGsB, component video, S-video, and composite video. The GLI 350xi is designed for
applications in rental and staging, convention centers, hotels or other large buildings, and other
environments where ground loops and video signal interference may occur.
Ground loops arise when there is an electrical potential difference between two inter-connected
electronic devices, such as when a projector and its signal source(s) are powered from two
different power-ground systems that are separated by a significant distance. This causes a
loop current to flow between the two pieces of equipment, resulting in hum bars — 50- or
60-cycle noise that is best described as a series of thick background bars that roll vertically
through the displayed image.
The GLI 350xi provides electrical isolation for systems where it is impractical to connect all
equipment to the same ground. Offering RGB video bandwidth of 350 MHz, the GLI 350xi
is housed in a compact, one-quarter rack width metal enclosure with an attached, external
international power supply.
ModeL VersIon d escrIPTIon ParT #
GLI 350xi Ground Loop Isolator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-223-03
oPTIonaL accessorIes ModeL des crIPTIon PaGe ParT #
RCAF-BNCM/10 RCA Female to BNC Male Adapter - Qty. 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 791 100-229-01
SVHSM-BNCF 8" (20 cm) S-Video Male to 2 BNC Female Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 795 26-353-01
SYM BNCM/6 15-pin HD Male to BNC Male Mini High Resolution Cables . . . . . . . . . . . . . . . . . . . . . . . page 776 26-533-02
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GLI 350xi
Ground Loop Isolator
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China
+ 86.21.3760.1568 / +4 00.883.1568
+ 86.21.3760.1566 FAX
Japan
+81.3. 3511.7655
+81.3. 3511.7656 FAX
Europe
+31.33 .453.4 040 / +800. 3987.6673
+31.33 .453.4 050 FA X
Dubai
+97 1.4.299 1800
+97 1.4.299 1880 FAX
Asia
+65.6 383.440 0 / +800.7339. 8766
+65.6 383.4664 FAX
China
+ 86.21.3760.1568 / +4 00.883.1568
+ 86.21.3760.1566 FAX
Japan
+81.3. 3511.7655
+81.3. 3511.7656 FAX
Europe
+31.33 .453.4 040 / +800. 3987.6673
+31.33 .453.4 050 FA X
Dubai
+97 1.4.299 1800
+97 1.4.299 1880 FAX
Asia
+65.6 383.440 0 / +800.7339. 8766
+65.6 383.4664 FAX
GLI 350xi
G r o u n d l o o p i n h i b i t o r S & i S o l a t o r S
sPecI FIc aTIo ns
VId eo
Gain .. .. . .. .. .. . .. .. . .. .. . .. .. . .. .. . Unity
Bandwidth .. .. . .. .. . .. .. . .. .. . .. .. 350 MHz (-3 dB), fully loaded
VId eo I nPu T
Number/signal type . . .. .. . .. .. . . 1 UXGA-QXGA RGBHV, RGBS, RGsB, RsGsBs, component video, S video,
Connectors . .. .. . .. .. . .. .. . .. .. .. . 5 female BNC
Nominal level . .. . .. .. . .. .. . .. .. . . 1 Vp-p for Y of component video and S-video, and for composite video
Minimum/maximum levels .. .. Analog: 0.3 V to 1.5 Vp-p with no offset
Impedance . .. . .. .. . .. .. . .. .. . .. .. . 75 ohms
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
VId eo o uTP uT
Number/signal typei .. . .. .. . .. .. 1 RGBHV, RGBS, RGsB, RsGsBs, component video, S-video, composite video
Connectors . .. .. . .. .. . .. .. . .. .. .. . 5 BNC female
Nominal level . .. . .. .. . .. .. . .. .. . . 1 Vp-p for Y of component video and S-video, and for composite 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
syn c
Input type .. .. . .. .. .. . .. .. . .. .. . .. . RGBHV, RGBS, RGsB, RsGsBs
Output type .. .. .. . .. .. . .. .. . .. .. . . RGBHV, RGBS, RGsB, RsGsBs (follows input)
Input level . .. . .. .. . .. .. . .. .. . .. .. . RGBHV, RGBS (min./max.): 0.5 V to 5.0 Vp-p (analog/TTL)
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
Polarity .. .. . .. .. . .. .. . .. .. . .. .. . .. . Positive or negative (follows input)
composite video
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
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
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)
RGsB (nominal): 0.3 Vp-p (analog)
Gen eraL
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
Cooling .. . .. .. . .. .. . .. .. . .. .. . .. .. . Convection, unvented
Rack mount . .. . .. .. . .. .. . .. .. . .. . Yes, with optional 1U, 9” deep rack shelf (RSU 129, #60-190-01; or RSB 129,
Enclosure type .. .. .. . .. .. . .. .. . .. Metal
Enclosure dimensions . .. .. . .. .. 1.7” H x 4.3” W x 6.0” D (1U high, quarter rack wide)
Product weight . .. . .. .. . .. .. . .. .. 0.8 lbs (0.4 kg)
Shipping weight .. . .. .. .. . .. .. . .. 2 lbs (1 kg)
Vibration . .. .. . .. .. . .. .. . .. .. . .. .. . ISTA 1A in carton (International Safe Transit Association)
Listings . . .. .. . .. .. . .. .. . .. .. . .. .. .. UL, CUL
Compliances . .. .. . .. .. . .. .. . .. .. . CE, FCC Class A, VCCI, AS/NZS, ICES
MTBF . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. 30,000 hours
Warranty .. . .. .. .. . .. .. . .. .. . .. .. . . 3 years parts and labor
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
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.
4.3 cm H x 11.0 cm W x 15.2 cm D
(Depth excludes connectors.)
NOTE: All nominal levels are at ±10%. Specifications are subject to change without notice.
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