The device can use TDM (Time Division Multiplexing) technology to multiple variety of service signals to E1 channels, to realize multi-service access function, more suitable for users with many types of service, the device offers a variety of service interfaces to support voice, Ethernet, RS232 etc. Machine is designed to be simple, easy to use.
1. Provides 10/100M service, bandwidth can be set, working method is adaptive, with VLAN transparent transmission functions;
2．Provides up to 30 voice loop interface,centre or remote optional;
3. It provides 2-way RS232 data interfaces;
4. It is supplied with perfect function of status indication to facilitate maintenance and management;
5. Machine veneer design lightweight, easy to use
6. Multiple power supply (220V,-48V optional).
2.1 E1 Interface
- E1 interface complies with the proposed G.703
- Rate: 2048Kb / s ± 50ppm;
- Code type: HDB3;
- Impedance: 75Ω unbalanced or 120Ω balanced manner;
- Jitter: meet the G.742, G.823 recommendations;
- Allow input attenuation: 0 ~ 6dBm.
2.2 Ethernet Interface
- 10/100Base-Tx half / full duplex mode;
- Meet IEEE802.3/IEEE802.3u standards;
- Use standard RJ45 connectors;
- With auto-negotiation and auto MDI/MDIX function.
2.3 Users and loop interfaces
- Impedance: 200Ω +680 Ω | | 0.1μF
- Insertion loss: -3 ± 0.75dB
- Frequency: 300 ~ 3400Hz (-0.6 ~ +3 dB)
- Scale noise: ≤ 63.7dBmop
- Crosstalk attenuation: ≥ 65dB
- Loop resistance: ≤ 1800Ω
2.4 RS232 (asynchronous) interface
- Interface Type: V.24 asynchronous
- Speed rate: 0 ~ 19.2Kbps
2.5 Environmental Requirements
- Operating temperature: 0 ℃ ~ 40 ℃;
- Relative Humidity: 95% (no condensation).
2.6 Power supply
- DC-48V: input voltage range -36V ~-72V;
- AC220V: Input voltage range 175V ~ 250V.
2.7 Power consumption
- Overall power consumption <30W
2.8 The structure and dimensions
- Equipment uses 19-inch standard chassis
- Dimensions: 300mm (depth) × 440mm (width) × 45mm (Height)
This equipment is box-type structure, composed by the chassis and circuit boards. Can be installed on 19-inch rack, also can be used as desktop devices placed in stable, dry, safe place to use.