Description
Features
- High density single board design to enhance system reliability
- Provide user line reverse polarity signal for accurate user billing
- Provide 30 user interfaces, tailor-made
- Independent subscriber module design, can be mixed and installed according to user requirements
- Multiple user interfaces to enable mixed access of voice, data and graphics
- 1U height 19 inch chassis structure, reducing the space occupied by the server room
Technical Specifications
| Physical Interface | BNC for 75 Ω |
| Frequency Range | 300 Hz to 3400 Hz |
| Data Interface | RS – 232 |
| Asynchronous Data Interface | RJ – 11 |
| Ethernet Interface | Ethernet RJ45 |
| Power Supply Input | -48 V (± 20 %) or 220 V AC |
| Power Supply Output | ±5 V (± 5 %) Bell current 75 VAC |
| Power Consumption | ≦7 W (full capacity) |
| Synchronous Data Interface | RS232 or X.21 or E1A530 or V.35 |
| Speed | N × 64 Kbps N= 1.31 |
| Clocking Method | System clock or Interface clock |
| Return Loss | not less than 20 dB |