SWIT S-4904T User manual

Model: S-4904T/R
Wireless HD Transmission System
User Manual
Please read this User Manual
throughout efore using.

Preface
Congratulations on your purchase of this product. Please read this user manual carefully.
1 ． All internal technologies of this product are protected, including device, software and trademark.
Reproduction in whole or in part without written permission is prohi ited.
2 ． All rands and trademarks of SWIT Electronics Co., Ltd. are protected and other relative trademarks in this
user manual are the property of their respective owners.
3 ． Due to constant effort of product development, SWIT reserves the right to make changes and
improvements to the product descri ed in this manual without prior notice.
4 ． The warranty period of this product is 2 years, and does not cover the following:
(1) Physical damage to the products;
(2) Any damage or reakdown caused y use, maintenance, or storage not according to the user manual’s
instructions;
(3) The attenuation of signal quality resulting from eing used in any special environments;
(4) Any damage caused y not powering the product y package supplied power adaptor.
(5) Any damage or reakdown not caused y the product’s design, workmanship, or manufacturing quality,
etc.
5 ． For any suggestions and requirements on this product, please contact us through phone, fax, Email, etc.
SWIT Electronics Co., Ltd.
Address: 10 Hengtong Road, Nanjing Economic and Technological Development Zone,
Nanjing 210038, P.R.China
Phone: [phone]
Fax: [phone]
Email: [e-mail]
We site: http://www.swit.cc

For Your Safety
Before start, please follo the safety precautions belo
Do not try the followings:
1. Unauthorized repairs or parts replacement or other operations.
2. Inappropriate placement including ut not limited to lighting, fire, exposure to rain, water or gas.
3. Switch to the power not in the voltage allowa le range
 The product
1. Do not use the products near water or in high humidity environments.
2. Do not lock the ventilation openings or get su stances inside, in order to avoid short circuit, fire or
electric shock.
3. Switch the power off if any liquid or su stance gets inside the product. 
 The po er
The products can e powered y attery or AC-DC power adaptor.
When the atteries are attached to the products, please make sure they are correctly and firmly locked.
Please use the package supplied power adapter. For third party AC-DC adaptor, please make sure the
voltage is within the specified range and the polarity connection is correct.
Please disconnect the power ca le under the following situations:
1. If you do not operate this product for a period of time;
2. If the power ca le or power adaptor is damaged;
3. If the product housing is roken.
 Working Environment
1. Please don't lay this product on the unsta le place.
2. Please don’t lay the product on metal shelf, in order to ensure the effective wireless transmission.
3. Please don’t use the products in a place with lots of moisture, soot or dust.
About the radio aves
The products adopt 5.1-5.9GHz wireless frequency, with the low antenna power specified under international
and U.S. FCC radio wave regulations. Therefore a license for radio station use is not required to operate this
product.

1. Product Introduction
This roadcast industry wireless system includes S-4904T transmitter and S-4904R receiver, adopts WHDI
(OFDM) technology, supports uncompressed 3G/HD/SD-SDI and HDMI wirelessly transmitted in 700 meters
scale, and with less than 1ms latency, which is widely used in on-site shooting and director monitoring.
2. Features
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◆ Uncompressed 3G/HD/SD-SDI and HDMI transmission
Support up to 1080p 50/60 uncompressed SDI & HDMI wireless transmission
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◆ 700 meters transmission distance
In open outdoor area, the effective transmission distance is approx 700 meters.
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◆ Less than 1ms latency
There’s no discerni le video delay and you can use it as real time on-location monitoring.
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◆ License free operation frequency
The wireless frequency is 5.1-5.9GHz, license free operated.
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◆ SDI/HDMI embedded audio transmission
Support CH-1 and CH-2 SDI/HDMI em edded audio wireless transmission
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◆ Multicast support
Support one transmitter to multi receivers. User can set frequency to pair the transmitter and receivers.
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◆ Encryption
Support AES 128- it encryption to protect the transmission.
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◆ Battery plate optional
User can choose Gold mount or V-lock mount for the transmitter S-4904T and receiver S-4904R .
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◆ All-Metal Shell
Both the transmitter and receiver adopt metal shell which is dura le and solid.
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◆ Simple connection
The wireless system is plug-and-play designed, without any software connection and configuration.
Remark:
1. The transmission distance may e different, and depend on surroundings, radio wave conditions, uildings,
etc., the 700 meters transmission distance may e not guaranteed.
2. The wireless transmission might e interrupt if there’re many other devices of 5GHz wireless andwidth
operated in the in the same location.
3. Signal reception may e affected y the position, height and angle of devices. If reception video is not sta le,
please physically adjust placement for the optimized signal.
4. Open the antennas at various angles and set receiver higher will enhance the transmission efficiency.
5. The product offers the AES 128- it encryption to protect the wireless transmission. Anyway, please e ware
of the intentional capture from third person.

3. Product Instruction
Transmitter S-4904T
Front vie Rear vie
⑴、⑵ LED status indicators:
Including Power, Video Signal and Wireless connection condition indicators
⑶ Wireless frequency dial s itch
Set frequency range from 0 ～ 9, in total 10 channels
⑷ SDI in: 3G/HD/SD-SDI input (BNC connector)
⑸ HDMI in: HDMI input (HDMI-A type connector)
⑹ On/Off: Switch the power on/off
⑺ DC in: Support DC 6.5-17V voltage input, 5.5mm/2.1mm. Outside: negative, Inside: positive
⑻ Po er installer: To e installed on Gold mount or V-mount cameras
⑼ Antenna
⑽ Battery Plate: Gold mount or V-mount attery plate optional. See details in “7.Battery plate”
⑾ Installation thread ：
：：
：
1/4”-20 thread. Use the package supplied articulating arm trestle to install the device to the camera.
The description of LED status indicator
Device Indicators Status Description
S-4904T
Power
Constant On Power connected and switched on
Off Power disconnected or switched off
Video
Constant On Network is connectioned, and there is recogniza le
video signal input
Off Network connection failed and there is no
recogniza le video signal input

Receiver S-4904R
Front vie Rear vie
⑴ Antenna
⑵ Po er installer: V-mount or Gold mount lock for optional. To power through the same attery mounted on
the monitor.
⑶ 1/4”-20 threaded hole.
⑷ RSSI ：
：：
： Wireless received signal strength indicator
⑸、⑹ LED status indicators:
Including Power, Video Signal and Wireless connection condition indicators
⑺ Wireless frequency dial s itch
Set frequency range from 0 ～ 9, in total 10 channels
⑻ SDI out: SDI output (BNC connector)
⑼ HDMI out: HDMI output (HDMI-A type connector)
⑽ On/Off: Switch the power on/off
⑾ DC in: Support DC 6.5-17V voltage input, 5.5mm/2.1mm. Outside: negative, Inside: positive
⑿ Battery Plate: Gold mount or V-mount attery plate optional. See details in “7.Battery plate”
The description of LED status indicator
Device Indicators Status Description
S-4904R
Power
Constant On Power connected and switched on
Off Power disconnected or switched off
Video
Constant On Network connectioned, and there is recogniza le
video signal output
Off Network connection failed and there is no
recogniza le video signal output
RSSI
0
～ 1 LEDs light The wireless network connection is weak, and the
video noise is visi le
2 ～ 3 LEDs light The wireless network connection is general, and the
video quality is good
4 ～ 5 LEDs light The wireless network connection is strong, and the
video quality is very good

4. Frequency Dial S itch
4.1 Using ONE set of devices under the same environment
Dial the frequency switch of oth transmitter and receiver to the same channel (in the same channel num er),
the default channel num er is “0”:
S-4904T S-4904R
4.2 Using TWO sets of devices under the same environment
It is suggested that set the dial switch of the first set to channel”0” and the second set to channel “5” :
S-4904T #1 S-4904R #1 S-4904T #2 S-4904R #2
4.3 Using three sets of devices under the same environment
It is suggested that set the dial switch of the first set to channel”0”, the second set to channel “4” and the third
set to channel “7”:
S-4904T #1 S-4904R #1 S-4904T #2 S-4904R #2 S-4904T #3 S-4904R #3
Note: 1. Please don’t use more than 3 sets of devices under the same environment to avoid interference.
2. To use multicast, just set several receivers at the same frequency channel as the one transmitter.
5. Build Connection
⑴ Connect the SDI or HDMI video source with the “SDI IN” / “HDMI IN”
port of S-4904T transmitter.
⑵ Connect the “SDI OUT” / “HDMI OUT” port of S-4904R receiver with
monitor or other receiving devices.
⑶ Dial the S-4904T and S-4904R to the same frequancy channel.
⑷ Power S-4904T and S-4904R, they will automatically search the
network, the S-4904R output video signal OSD displayed as Fig1.
⑸ The network will e uilt after 10-20 seconds, the ”RSSI” of receiver
indicates the wireless network connection status.
⑹ When S-4904R detect the recogniza le video signal, ”Video”indicator will light and OSD will dispappear.
Remark: S-4904T support SDI input and HDMI input, and it will automatically detect the connected signal input.
If oth SDI and HDMI are connected, S-4904T will give priority to transmit SDI signal.
Fig1

6. Ho to get the best effect of ireless transmission
⑴ Set the antennas of S-4904T and S-4904R as elow Fig2 and Fig 3 to extend the transmission distance
and achieve sta le transmission quality.
Fig2 Fig3
⑵ Set the receiver S-4904R as high as possi le like Fig 4.
Fig4
⑶ Avoid walls, trees, water and any lockage as est as you can. (Fig5)
Fig5

7. Optional Battery Plate
7.1 S-4904T Battery plate choice
S-4904T provides Gold mount or V-mount attery plates for installing etween camera and attery. The
attery can power S-4904T and camera simultaneously.
Gold mount V-mount
7.2 S-4904R Battery plate choice
S-4904R provides V-mount or Gold mount two-sided plates for installing etween monitor and attery,so
that the attery can power the monitor and S-4904R simultaneously.
Gold mount V-mount
Note: The attery plates are fixed on S-4904T and S-4904R at factory, please specify the suita le plate type
efore purchase.

8. Trouble-Shooting
If the receiver failed to output video correctly, the possi le causes are as elow, please find the solution from
following chart:
The receiving
video Possible Causes Solution
No display
No power Check power connection and switch on
the transmitter and receiver
The antennas are not installed properly
and screwed tightly
Install the antennas properly and screw
tightly of oth transmitter and receiver
Bad connection of video ca le Check video ca le connection of oth
transmitter and receiver
Video format is not supported
Check the format of video source.
(See the supported video formats at
9. Specifications.)
Video quality is
poor
Bad connection of video ca le Check video ca le connection and if
possi le, change to etter quality ca les.
The wireless transmission is distur ed
y environment, such as other
electronic devices in the same
location.
Wait for one minute or re oot oth the
transmitter and receiver
The transmission distance is out of
effective range or eing interfered y
o stacles.
Try the wireless transmission at a closer
distance or clean out the o stacles
9. Specifications
Model Transmitter S-4904T Receiver S-4904R
Input 3G/HD/SD-SDI
× 1, HDMI × 1 /
Output / 3G/HD/SD-SDI
× 1, HDMI × 1
SDI format
SMPTE-425M 1080p (60 / 59.94 / 50)
SMPTE-RP211 1080psf (30 / 29.97 / 25 / 24 / 23.98)
SMPTE-274M 1080p (30 / 29.97 / 25 / 24 / 23.98)
1080i (60 / 59.94 / 50)
SMPTE-296M 720p (60 / 59.94 / 50)
SMPTE-125M 480i (59.94)
ITU-R BT.656 576i (50)
HDMI format 480i / 576i / 1080i (60 / 59.94 / 50) / 720p (60 / 59.94 / 50) / 1080p (60 /
59.94 / 50 / 30 / 29.97 / 25 / 24 / 23.98)
Wireless frequency 5.1
～ 5.9GHz
Radio modules OFDM 16QAM
Max Transmission distance Approx 700m (Line of sight)
Latency
≤ 1 millisecond
Power consumption
≤ 6.5W ≤ 6.5W
Radio power Max 63mW /
Input voltage DC / Battery:6.5
～ 17V DC / Battery:6.5 ～ 17V
Working environment Temperature: 0°C -+40°C
Dimension 93
× 188 × 66 (mm) 130 × 191 × 65 (mm)
Net weight(with antenna) 572g 876g