GSM FWT SC-4QS is a newly designed 4 ports GSM to POTS (Plain Old Telephone Service) line Converter, also known as Fixed Wireless Terminal. The device has 4 line connections that allow 4 regular analog telephones to be connected to 4 Cellular GSM service just like connecting to 4 local PSTN (Public Switched Telephone Network) land-lines. Your calls are connected on the GSM network. This device receives and makes phone calls.

Model GSM FWT SC-4QS is 4 GSM modules + 4 FXS ports.

Model GSM FWT SC-4QO is 4 GSM modules + 4 FXS ports + 4 FXO ports .

1.        2, Installation and Connections

1. The GSM FWT SC-4QS has to be in an area with a good GSM network coverage. Poor signal may affect the quality of the voice.

2. Insert the SIM card into the SIM card holder at the back of the GSM FWT SC-4QS.

3. Connect the antenna. In order to ensure a good quality of voice, it is recommended to locate the antenna at least 1.5m from the telephone and from the GSM FWT SC-4QS.

4. Plug the RJ-11 cable to the back of the GSM FWT SC-4QS marked as FXS (1-4) and the other end to your telephone.

5. Plug the Power Adapter to the wall power socket and its 12v plug to the Power (PWR) connector on the back of the GSM FWT SC-4QS.

6. Your Telephone will ring twice when the GSM FWT SC-4QS has completed the boot process, it takes about 5 seconds.

7. You can make and receive calls after you can hear the Dial Tone on the telephone and Network Signal indicator (GSM) is ON.

    

   GSM FWT SC-4QS Connection Diagram

    

   

    

Back Side

LED Display

 3, Functions & Features

• Brand Name: SunComm or OEM

• Model Number: SC-4QS

• Type: GSM (GSM FWT SC-4QS) GSM + PSTN (GSM FWT SC-4QS/O)

• Port Number: SC-4QS: 4 ; SC-8QS/O: 8

• SLIC(FXS): 4

• DAA (FXO): 4

• SIM Card slot: 4

• IMEI changeable: support

• LCR(Low cost routing): support

• SMS management: support

• lock network operator: support

• Number transfer: support

1.  Use advanced Silicon Lab slic (FXS) and DAA (FXO) solution, the compatibility and the voice quality are in the high-level standard.

3. The digit dialing prefix establishment function,   may realize  GSM and Between FXO LCR route

4. The digit dialing length establishment function, the user does not need in the digit dialing to join finally#The number may also realize the fast digit dialing

5. Number transformation function

6. Number Canada dials the function

7. The operator locks the function

8. The FXO mouth has escapes the function

2.    4, Technical Specifications

Air interface standard: Quad band

                   GSM850/1900Mhz,900/1,800Mhz phase 2+ full band 
Frequency ranges:
A) GSM 850 GSM 1900:
I) Transmission: 869.2 ~ 893.8MHz I) Transmission: 1, 930 ~ 1, 990MHz
Ii) Reception: 824.2 ~ 848.2MHz Ii) Reception: 1, 850 ~ 1, 910MHz 
B) GSM 900: GSM 1800: 
I) Transmission: 890 ~ 915MHz I) Transmission: 1, 710 ~ 1, 785MHz 
Ii) Reception: 935 ~ 960MHz Ii) Reception: 1, 805 ~ 1, 880MHz 

Module employed: Quectel M35

Phone interface: supply RJ-11 Phone Interface
Hanging voltage: 45V
Dialing tone Frequency: 450Hz
Antenna interface: Antenna amplifying >2.5db
RF Sensitivity: <-104DBM
Transmitting power: <3W

Operation temperature: -10c-60C
Storage temperature: -20C-70C
Operation humidity:       45% - 95%

Color: Black
AC-Adapter:  Input: AC 110~240VAC 50~60Hz
           Output: 12DC 1.5A.

AC-Adapter type: EU, US, AU, British (optional)