Etross-8888 8 ports 64 sims GSM FWT wiith reversal polarity

Brand: ETROSS or OEM brand
Model No.: ETROSS-8888G 8 Ports 64 SIM Cards
Product name: GSM / FWT Fixed Wireless Terminal / FCT / Fixed Cellular Terminal / Gateway /  Phone line converter / Dialer / WLL

Frequency: 850/900/1800/1900MHz

Features:
1.Dialing tone
2.DTMF Dialing
3.IP Presetting
4.Has 8 FXS ports
5.Displays caller ID
6.64 SIM Cards' rotation
7.Bell signal,clear voice
8.Comptiable with Asterisk
9.SIM card supported(1.8V,3V)
10.Simple to install and operate
11.Can hide subscriber ID(Optional)
12.Employ Industrial module to make
13.Provides proper reversal polarity for metering
14.Working status and Signal Strength by LED indicator
15.Compatible to ordinary telephones,PBX,PABX,VOIP gateway

Technical Specifications
1. Air interface standard: GSM850/1900MHz,900/1,800MHz phase 2+ full band
2. 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

3. Phone interface:8 RJ-11 Phone Interfaces
4. Picking off voltage: 30mA / 41mA
5. Antenna interface: SMA antenna connection
6. Antenna Amplifying: >1.5db
7. Dialing frequency: 450Hz
8. Hanging voltage: 45V
9. Picking current: 30mA/41mA

Package:
G.W: 5kg
Product dimension: L455x W280 x H45mm
Gift box dimension: L510x W300x H64mm

8 pieces of RJ11 interface and GSM Antenna:

64 pieces of SIM card slot:

Sketch of connecting with PBX

Sketch of connecting with ordinary phone:

Sketch of connecting with alarm system:

Sketch of connecting with VOIP device: