GS Instech GSTR1937DT SPR User Manual

FCC ID : U88GSTR1937DT-SPR

ATTACHMENT E.

- USER MANUAL -

HYUNDAI CALIBRATION & CERTIFICATION TECHNOLOGIES CO., LTD.

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Report No. : HCT-R07-014 1/24

FCC ID : U88GSTR1937DT-SPR

INFORMATION TO USER :

NOTE: This equipment has been tested and found to comply with the li mits for a Class A digi tal device, pursuant to Part 15 of the FCC Rules. These 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.

CAUTION

Changes or modifications not expressly approved by the manufacturer responsible for compliance could void the user's authority to operate the equipment

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FCC ID : U88GSTR1937DT-SPR

- INDEX -

ATTACHMENT E............................................................................................................1

- USER MANUAL -..........................................................................................................1

1. SUMMARY .................................................................................................................4

2. SYSTEM CONFIGURATION.....................................................................................5

3. SPECIFICATIONS...................................................................................................10

3.1 Electrical Specifications (applicable to both Uplink & Downlink)...............................................10

3.2 Electrical and Environment Specifications ..........................................................................................10

3.3 Functions.......................................................................................................................................................... 11

4. SET UP .....................................................................................................................13

4.1 System Set up ................................................................................................................................................13

4.2 Troubleshooting ............................................................................................................................................ 16

5. WEB USER INTERFACE .........................................................................................17

5.1 IP Address verification and Explorer setting......................................................................................17

5.2 PCS Web UI.....................................................................................................................................................18

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FCC ID : U88GSTR1937DT-SPR

1. SUMMARY

US PCS 1900 RF repeater is an analog RF repeater, which improves PCS network. US PCS 1900 RF repeater receives RF signal from BTS and transmits it to the blanked and

shadowed area, thus providing and improving voice and image data services. US PCS 1900 RF repeater’s goal is to support BTS’s functions proportionately.

US PCS 1900 RF repeater communicates with BTS wirelessly, thus saving additional costs for its maintenance.

US PCS 1900 RF repeater consists of PA (Downlink, Uplink), IF, LNA (Downli nk, Uplink), I/O & Control divisions, which are supplied with Alarm LED, thus providing quick and easy maintenance and troubleshooting of the repeater.

This manual describes in general structure of US PCS1900 repeater, its application, maintenance and troubleshooting, installation and operation etc.

Abbreviation

PA: Power Amplifier IF: Intermediate Frequency LNA: Low Noise Amplifier I/O: Input/Output

Ethernet Instruction “ This equipment is indoor use and all the communication wirings are limited to inside of the building” or similar texts.

Replaceable batteries instruction CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECTIVE TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS

For PLUGGABLE EQUIPMENT, the socket-outlet shall be installed near the equipment and shall be easily accessible.

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FCC ID : U88GSTR1937DT-SPR

2. System Configuration

2.1 US PCS 1900 service organization

US PCS 1900 repeater decreases blanked and shadowed areas and extends cell coverage by retransmitting signal. The signal is received from BTS via Antenna directly, thus excluding additional expenses for signal transmission (like cabling). Service organization of CDMA Inbuilding RF repeater is shown at the picture below. Donor Antenna is directed to BTS, and being divided at Service Antennas are installed in the building and parking place. Pass Loss should be taken into consideration while dividing and cabling.

<Pic.1> US PCS 1900 Service organization

2.2 System Design and Operation

2.2.1 System design

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FCC ID : U88GSTR1937DT-SPR

4567 89

12

10 11

3

Donor Cavity

1

IF-15MHz

5

Waveform Detector

9

HUB

13

12

Service Cavity

2

IF-20MHz

6

10

FWD HPA

<Pic.2> Repeater’s inside structure

3

7

11

13

I/O & NMS Board

RVS LNA

RVS HPA

IF-10MHz

4

FWD LNA

8

12

Power Supply

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FCC ID : U88GSTR1937DT-SPR

<Pic.3> Repeater’s Top and Bottom panels

<Pic.4> AC & DC ports

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2.2.2 Uplink Path

FWD and RVS Gain Budgets have similar structure. In case of Uplink Path, RF signal is transmitted from Service Antenna to Service Cavity Filter and RVS LNA division, then the signal is transferred to IF division, where desirable Band is selected by passing 6 Paths of RF Switch and SAW filter. Selected Band is got together in FWD LNA division, and then transmitted to Donor Antenna passing through Digital ATT (10dB ATT Range) and Donor Cavity Filter. Then the signal is transmitted to BTS through Donor Antenna.

<Pic.5> Uplink Block Diagram

2.2.3 Downlink Path

Downlink Path is organized in reverse order of Uplink Path. In case of Downlink Path, RF signal is transmitted from Donor Antenna to Donor Cavity Filter and FWD LNA division, then the signal is transferred to IF division, where desirable Band is selected by passing 6 Paths of RF Switch and SAW f ilter. Attenuation range is 40dB in Digital Attenuator. Selected Band is transmitted to FWD Drive Am and Service Cavity Filter, after that the signal is transferred to Service Antenna.

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Report No. : HCT-R07-014 8/24

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<Pic.6> Downlink Block Diagram

2.2.4 US PCS Frequency Selection

1930

1850

AB CDEF G

1945 1950 1965 1970 1975 1990 1995

AB CDEF G

1865 1870 1885 1890 1895 1910 1915

B CDEF GA

< Forward Band Structure >

B CDEF GA

< Reverse Band Structure >

f (MHz)

<Pic.7> PCS Band Structure

US PCS 1900 repeater has 5MHz, 10MHz, 15MHz, 20MHz Paths in IF division, so any of these bandwidths can be chosen for providing service. But there are some cases when this choice is not applicable.

- Not continuous 4 Paths [5 MHz each], so total band is 20MHz (i.e. A1A3B2C1, A1A2B1B2)

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3. Specifications

3.1 Electrical Specifications (applicable to both Uplink & Downlink)

Characteristics Specification

Frequency Range

System Group Delay

Characteristic Impedance 50 ohm

Input Power Range -58 ~ -18dBm (for both Uplink and Downlink)

System Isolation > 90dB

Gain Adjustment Step(Accuracy) 1dB(±0.5dB)

Pass Band Ripple 2.5dB(±1.25dB)

Maximum Output Power 5W / 37dBm

Spurious Emissions

Forward 1930 ~ 1995MHz Reverse 1850 ~ 1915MHz

< 5㎲

VSWR Max1.5 : 1

Gain Range 55dB ~ 95 dB

< 4.5 dB @ Max Gain

Noise Figure

<12 dB @Min Gain

>45 dBc @885kHz

>55 dBc @1.98kHz

<-13dBm @Fc±2.25MHz (RBW: 1MHz)

IF Path

IF Frequency FWD: 200 MHz, RVS: 120MHz

Band Select Local Shift & RF Switching

Roll Offs > 50dBc @1MHz

Waveform Quality Factor min 0.912

5MHz/10MHz/15MHz/20MHz

(SAW Filter Bandwidth)

3.2 Electrical and Environment Specifications

Characteristics Specification

Size(inch) / Type 16.1(W) x 23.6(L) x 7.17(H)

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FCC ID : U88GSTR1937DT-SPR

Power AC 120V 60Hz 5.5A

Temperature / Weight

Connector TYPE N Type Female

0 ~+50/℃℃26kg

3.3 Functions

Parameter Specification

Gain Control

AGC

Auto Gain Control

ALC

Auto Limit Control

• Adjustable DL and UL Gain range 55~95dB

• Display default Gain and current Gain function

• It always operates in Downlink AGC ON status

• To maintain same Downlink output power despite flexible input signal strength.

• To add or subtract Attenuation level referring to AGC Power Limit level.

• To limit output power as far as default range

• Set up via GUI

• Automatic Gain decrement when output power of repeater is higher than default level

• Automatic Gain recovery when output power of repeater is reduced.

Gain Balance

Oscillation Check

Spurious Emission

Alarm

• Shutdown when output power is higher than default level in Minimum Gain

• Automatic Recovery Algorithm conversion after Shutdown status

• Downlink ATT is applied to Uplink during AGC state

• Setting and maintenance of output level

• Additional attenuation to ALC Level

• Isolation Check in initial set up or Reset

• Monitoring Oscillation comparing to minimum/maximum Noise Floor level

• When Oscillation occurred, repeater attempts to stabilize Isolation through Gain control function.

• Shutdown repeater when Oscillation still goes in Minimum Gain

• Automatic Recovery Algorithm conversion after Shutdown status

• Noise Floor Observation in case of ±2.25MHz down at the center

• In case of Noise level > –13dBm, Spurious Emission is stabilized

automatically

• In case of Oscillation Spurious Emission Alarming in Minimum Gain,

repeater will be shutdown

• Automatically Switch to Recovery Algorithm at Shutdown

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Band Select • To select either 5MHz/10MHz/15MHz/20MHz

Power Monitoring

Function

DL Input control • Monitoring Donor ANT input power of DL

Automatic Recovery

Security

Temperature

control

VSWR Monitoring

IP address report

via E-mail

• Monitoring repeater’s output level

• When in repeater shutdown, it periodically recovers output power of

repeater then monitors alarming

• Support HTTPS for Web Browser security

• User authentication through User ID and Password

• Monitoring temperature of repeater

• Maximum and minimum set up is possible. Shutdown in over temperature

• Automatic recovery after temperature becomes normal. (Hysteresis 10

degree)

• Monitoring VSWR of Donor ANT Port (Every one and half minute)

• Reporting VSWR Alarm and Shutdown when the rate is 3:1

• Automatic Recovery Algorithm conversion after Shutdown status

• When in PPP reconnection, E-mail which includes HTML to connect to newly assigned IP Address, reports to operator.

DHCP Client • Automatic IP assignment

DHCP Server • Server function for automatic IP assignment

Web GUI • Remote and local user browser support through Web Browser

SNMP Agent • NMS report via SNMPv2 Trap

LED Display

• LED displays power and operation status on front side of repeater system.

• DL input and output signal level is verified by LED bar.

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4. SET UP

4.1 System Set up

4.1.1 Constitution (based on 1 SET)

Parameter Item Quantity

Major accessory US PCS 37 dBm Case 1 EA

Main power input Cable

Additional components

User Manual Manual 1 EA

Fixable Screw Mountable Bracket

1 EA 1 SET 1 EA

4.1.2 Notice

1) System Power check: Major electricity is AC120V, therefore please input electricity after power verification.

2) Input condition optimization: DL input condition is -56 ~ -16dBm. User should verify input condition of Donor ANT.

3) Isolation check between DONOR/SERVICE ANT: Isolation condition of this equipment is 95dBc (Gain+ 15dB). User should check its condition before installation.

<Pic. 8> MS 3100 A 10SL-3 (Wall Mount Receptacle) & MS3010 A 10SL-3(Plug)

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4.1.3 System set up

1)

This equipment is basically wall mountable installation.

2) Once aforementioned process is done, open for service get ready.

3) For grounding, there is a grounding terminal in main power supply side and the grounding

terminal on a site and unit should be connected same.

4) System installation work is basically performed more than two people and should be careful for

unexpected accident.

4.1.4 Open for service

<Pic.9> Case mounts

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1) Check points before open

a. Verification of system installation status

Electricity, In/out antenna, coaxial cable connection, equipment mounts status.

b. Verification of system accessories

User should check whole necessary accessories.

c. Check receipt signal level

User should check whether receipt environmental condition is in accordance with system specification,

so that system operation will be optimized.

2) Check points after open

a. Check by external LED

RUN: Green light ON (Off: Green light off)① ALARM: Green light in normal status, Red light in alarming② SHUT DOWN: Green light in normal status, Red light in Shutdown ③ Number of LED bar on front side of repeater will show input signal level. ⑤

Less than -56dBm: LED 1bar

-56dBm~-48dBm: LED 2bars

-48dBm~-39dBm: LED 3 bars

-39dBm~-31dBm: LED 4 bars

-31dBm~-23dBm: LED 5 bars Number of LED bar in output power side will show output power signal level Less than +30dBm: LED 1bar +31dBm~+33dBm: LED 2 bars +34dBm: LED 3 bars +35dBm: LED 4 bars

More than +36dBm: LED 5 bars

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<Pic.10> Front LED Indicator

4.2 Troubleshooting

In case, abnormal operation is detected, user should check abnormal parts via remote accessible function or field debug, then conduct repair after turn it off.

4.2.1 Necessary Testing and Measuring equipment

a. RF Power Meter: 10Watt Max, 50ohm b. Signal Generator: 3GHz c. Spectrum Analyzer: 3GHz d. Multi Meter

4.2.2 Notice

a. Trouble shooting should be performed with drastic knowledge basis. b. Unsure parts should not be disassembled. c. When in trouble shooting, technician should use attenuator to check output side.

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5. WEB USER INTERFACE

5.1 IP Address verification and Explorer setting

5.1.1 IP Address verification and Explorer setting

(1) Start->Control Panel->Network Connections (2) Double-click Local Area Connections at LAN or High Speed internet (3) Click Internet Protocol (TCP/IP) at General tap and click Properties. (4) Apply automatic IP address assignment at local connection

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(5) Verify assigned IP address at local connection. (Unless IP address is not assigned, please click repair.)

5.1.2 Explorer option setting

- Proceed step by step as indicated in below. All files

and records should be removed.

- Set up mode will be displayed after (2) click.

- Please proceed along following set up mode screen

shot.

5.2 PCS Web UI

5.2.1 Web UI connection

- Input desirable IP address.

- Default Use Name and Password for Web UI is ‘admin’.

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5.2.2 Link menu

FCC ID : U88GSTR1937DT-SPR

- Following screen shot is located left-top side of main menu and those are linked to relative

window.

5.3 Web UI control

5.3.1 Status

- Currently setting level check at this menu tap.

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5.3.2 RF Configuration

- Setting level can be changed at this menu tap.

- (1) Level change

- (2) Click Apply button

5.3.3 Alarm Configuration

- (1) On/Off function for entire alarm report

- (2) Alarm status

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- (3) On/Off function for individual alarm category

- (4) Alarm SNMP Mapping

- User may set and change its level per it field condition and click apply button.

5.3.4 Communication Configuration

- This provides all necessary information related to network

- To provide relative information about DHCP and modem

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5.3.5 User Management

- Add and Remove user, Assigning accessibility

- (1) User Registration: Click Register after input required information

- (2) User Removal: Click Delete upon click of user name you wish to remove.

- (3) Super User: Accessible to all kinds of information path

Read/Write: Accessible to all kinds of information path except for User management path. Read: Checking status only. No control

5.3.6 Logs

- All users’ access record will be saved as a log.

5.3.7 Sub System/Mailing List

- Set up e-mail address the place you wish to receive alarm.

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5.3.8 Troubleshooting

Following is a trouble shooting table, which is frequently occurred to repeater and treatment method.

5.3.9 Remote Software Upgrade

- Upload repeater operation program.

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5.3.10 System Reset

- Reset repeater.

FCC ID : U88GSTR1937DT-SPR

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