1, General Description
GSM FWT ETS-4S 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 ETS-4S is 4 GSM modules + 4 FXS ports.
2, Installation and Connections
The GSM FWT ETS-4S has to be in an area with a good GSM network coverage. Poor signal may affect the quality of the voice.
Insert the SIM card into the SIM card holder at the back of the GSM FWT ETS-4S.
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 ETS-4S.
Plug the RJ-11 cable to the back of the GSM FWT ETS-4S marked as FXS (1-4) and the other end to your telephone.
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 ETS-4S.
Your Telephone will ring twice when the GSM FWT ETS-4S has completed the boot process, it takes about 5 seconds.
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 ETS-4S Connection Diagram
3, Functions & Features
Model Number: ETS-4S
Type: GSM (GSM FWT ETS-4S);
Port Number: ETS-4S: 4 ;
SIM Card slot: 4
IMEI changeable: support
SMS management: support
lock network operator: support
Number transfer: support
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
4, Technical Specifications
Air interface standard: Quad band
GSM850/1900Mhz,900/1,800Mhz phase 2+ full band
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%
AC-Adapter: Input: AC 110~240VAC 50~60Hz
Output: 12DC 1.5A.
AC-Adapter type: EU, US, AU, British (optional)