wtw GSM900 User manual
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
2
Table of Contents
1. SYSTEM SPECIFICATION.......................................................................…. ..............3
2. MECHANICAL SPECIFICATION....................................................................…..........4
3. ALARM SPECIFICATION...................................................................................……..4
4. SYSTEM AUTO SHUTDOWN ALGORITHM...............................................................4
5. SYSTEM AUTO LEVEL CONTROL ALGORITHM .....................................................4
6. SYSTEM OPERATION........................................................................................…. ...5
7. SYSTEM INSTALLATION.....................................................................................…...7
8. TROUBLE SHOOTING................................................................................ . ......…....9
9. HANDLING PROCEDURES................................................................................….....9
10. AC ADAPTOR………………………………………………………………………...…….10
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
3
1. System Specification
GSM900 CONDITIONS
Up Link (REV) Down Link(FWD)
Frequency 890~915MHz 935~960MHz
Input Power -55dBm ~ -25dBm / 1Tone
Output Power +10dBm±2dB/1Tone
Max Gain 65dB(±2dB)
Flatness 4dB(P-P)
VSWR 2.5(Max)
Delay Under 7us
ALC @ (-55 ~ -25dBm) 10dBm(±2dB/1Tone) 10dBm(±2dB/1Tone)
IMD(@2Tone, 7dBm) -45dBc Over -45dBc Over
UMTS CONDITIONS
Up Link (REV) Down Link(FWD)
Frequency 1920~1980MHz 2110~2170MHz
Input Power -55dBm ~ -25dBm / 1Tone
Output Power +10dBm±2dB/1Tone
Max Gain 65dB(±2dB)
Flatness 4dB(P-P)
VSWR 2.5(Max)
Delay Under 7us
ALC @ (-55 ~ -25dBm) 10dBm(±2dB/1Tone) 10dBm(±2dB/1Tone)
IMD(@2Tone, 7dBm) -45dBc Over -45dBc Over
GSM900/UMTS CONDITIONS
Impedance 50ohm
RF Connector Type N Female
Shut Down ON
Internal Repeat system IF
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
4
2. Mechanical Specification
Characteristic Unit(mm) Remark
Size 270 * 191 * 63.4 D * W * H
3. Alarm Specification
Characteristic Specification Remark
Over Power (Uplink, Downlink) external Input signal
over –25dBm System Auto Shutdown
4. System Auto Shut Down Algorithm
Oscillation detect level At external input signal over -30dBm
Re-check Algorithm
Time Action
0~1sec Upon detection, check for the status for 1 sec
2~60sec Shutdown
61~62sec Shutdown status clear, check for the status for 1sec
63~122sec Shutdown
123~124sec Shutdown status clear, check for the status for 1 sec
After Repeat
zProgram verification available upon request
5. System Auto Level Control Algorithm
ALC(Automatic Level Control) operates at 1dB step to maintain the output level of 10dBm when the
input signal is from -55dBm to –25dBm.(30dB range)
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
5
6. System Operation
The TU-G9U21-1065I “over the air” Repeater is designed for indoor operation to increase
signal strength in small and medium sized areas such as offices, shops and basement car
parks in the GSM900 band and UMTS, with frequencies that are programmable to the
specific requirements of each site. It is small, lightweight, and easy to install. Simply plug it
in, and the coverage will be immediately extended. The uplink and downlink gain of the
repeater can be adjusted by ALC.
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
6
External Constitution
①
③
④
⑤
⑥
②
①Outdoor Antenna Cable Link Port: N-Female
②Indoor Antenna Cable Link Port: N-Female
③DC Input Terminal (Jack)
④DC Power ON/OFF S/W
⑤Status Display LED: POWER, ALARM
⑥Band Selector S/W
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
7
¾POWER SUPPLY
Characteristic Specification Remark
Input AC 100~240V
Output DC 12V, 5A
7. System Installation
Contents
1. REPEATER 1SET
2. AC/DC ADAPTER 1SET
3. DONOR ANT 1SET(OPTION)
4. SERVICE ANT 1SET(OPTION)
5. DONOR ANT CABLE 1SET(OPTION)
6. SERVICE ANT CABLE 1SET(OPTION)
7. SCREWS
Installation Process
This is one of the most important process in repeater installation, as how to install the antenna
decides performance of this equipment.
1. Decide a place to install the outdoor antenna considering the cable length of
the donor antenna.
2. Attach the repeater bracket at the wall.
(Refer image A)
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
8
<Image A. Repeater Bracket Placement>
3. Check the Receiving Signal by DONOR CABLE and connect to repeater’s DONOR
ANT PORT (Input Signal Receive Range –25~-55dBm)
4. Install the service antenna at the appropriate place and connect the cable with the
repeater.
5. Connect the adaptor to the repeater and check the POWER LED power on
status.
6. After 10 seconds, check of ALARM LED is ON. (When ALARM LED is on, it means
the system has been shutdown as external input signal strength is too strong.
Please refer the Trouble Shooting below and check the system status.)
7. At normal operation, the LED status indicates as below;
H PW LED ON/H ALM LED OFF/L PW LED ON/L ARM LED OFF
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
9
Operation Instruction
-Upon confirmation of electric power (100~240V/AC), insert AC cable to power supply,
then using DC cable, insert power cable to DC power input terminal, which is set on the
bottom of the equipment
LED Configuration
-Power : DC Power is normal -Green LED ON
-Alarm : FEW,REV over power, When Shut Down- Red LED ON
8. Trouble shooting
When Power LED (GREEN) off
1) Check the AC Power.
2) IF AC power is OK, Check the DC Power by checking Power Supply.
When Alarm LED (RED) ON
1) Check the Isolation between Donor ANT. and Service ANT.
9. Handling Procedures
-Please avoid using the other Power Supply besides included ones.
-Prohibited to use other frequencies antennas.
-Please refrain from installing the equipments reach of children.
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
10
AC Adaptor Spec.
Input
No ITEM SPECIFICATION
Rated input Voltage AC100V ~ 240V
1 Vibration input Voltage Range AC90V ~ 264V
Frequency Rated 50~60Hz
2 Frequency Vibration 47~63Hz
Input Rated Current 1.5A RMS Max
No damage at 240V AC cold start
3 Inrush Current ＜0.25mA
4 Leakage current 87%Min (Average V Compliant)
5 Efficiency <0.3W Max(CEC level V Compliant)
6 Input power(no load) <0.5W CEC Compliant
Output
NO ITEM SPECIFICATION
1 Output Voltage 12VDC ± 5％
2 Output max. current 5A
3 Output min. current 0A
4 Line regulation ±1%
5 Output Voltage protection 18V Max (Output shut down)
6 Short circuit protection Output shut down and auto restart
7 Output temperature protection There shall be no ignition or smoke and
deformation of case
8 Ripple Voltage 150mV (p-p)(100V~240V AC Input)(1)
(1).Measuring is done by 20MHz bandwidth oscilloscope and terminated each output with
a 10uf aluminum electrolytic capacitor and 0.1uf ceramic capacitor
File Name
TU-G9U21-1065I
Item
Technical Note
Ver
1.0
Research & Development Center
11
Dimension
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