Etross-8848 Is a GSM to Analog Converter with PSTN

• Customization: Available
• Type: GSM
• Usage: Telephone/PBX/Alarm System
• Model NO.: 8848
• Condition: New
• Transport Package: 20PCS/Carton
• Trademark: ETROSS
• Origin: China Shenzhen
• HS Code: 8517629300
• Production Capacity: 1000PCS/Month
• Package Size: 30.00cm * 20.00cm * 6.00cm
• Package Gross Weight: 0.800kg

Product Description

1, General Description:

Etross-8848GSM/PSTN with LCR has the function of choosing the route automatically.
When you dial out from the device, it will check the prefix number. You just need to preset it in the unit, then it will call out through GSM/PSTN according to the presetting rules. Also, both GSM and PSTN support call-in.
When you are in calls through GSM line, if another call arrives at PSTN, the caller will hear busy tone, and vice versa.
If you don't connect the PSTN line, it will dial out from your mobile SIM without distinguishing at high cost.
If the SIM card is not in its position or GSM network is no signal, it will dial out from PSTN line.



2, Features:

1. It is a 1 channel GSM Gateway which has 2 RJ-11 interfaces for extensions;
2. It can connect with ordinary telephone sets, PBX , VOIP Gateway, Billing meter Alarm system etc. ;
3. Dialing tone frequency:450 HZ;
4. Can adjust dial interval from 0.5sec to 9 sec by setting up from telephone set;                                          5) Can adjust voice volume by setting up from telephone set;                              
   6) Caller ID display, own ID hides (optional);
   7) Bell signal;
   8) Antenna socket (SMA);
   9) IP Presetting;
   10) Working status and Signal Strength by LED indicator;                                                 11) IMEI Change (optional).                                                                                        12) Back-up Li-ion battery (Optional): 7.2V 1300MA.                                 13)Stand-by time: 24hrs, Talking time: 2.5hrs.

1. Strong signal
2. SIM Card supported(1.8V,3V)
3. Supports DTMF 2'nd dialing out
4. Locking PIN / network (optional)
5. )Provides reversal polarity signal for metering
6. Provides optimized circuit connecting the exchange device for Extension
7. Auto-select economic route(Low-cost routing LCR function)
8. When GSM is unavailable, calls will be forced to dial out from PSTN.
9. When not connecting to PSTN line, GSM will provide the forced dial-out function.

3,Technical Specifications
Air interface standard: 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
Phone interface: supply RJ-11 Phone Interface
Hanging voltage: 45V
Picking off voltage: 30mA / 41mA
Dialing tone Frequency: 450Hz
Antenna interface: Antenna amplifying>2.5db
Sensitivity:<-104DBM
Transmitting power<3W
AC-Adapter interface: Input: AC 110~240VAC  50~60Hz
                   Output: 12DC 1A.
AC-Adapter type: EU, US, AU, British can be optional
4, Check Package:
ETROSS-8848 GSM PSTN FWT 1 piece;
Ac-adapter 12V 1A: 1 piece,
GSM Antenna with 3m cable 1 piece,
User's Manual 1 piece,
G.W: 0.75kg per unit. And 20pcs per carton, 16kg per carton.
Gift carton Measurement: 55cmX34.5cmX32.5cm