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.
- Modular design, mixable, and installable per user’s specific requirements.
- Multiple user interfaces to enable mixed access of voice, data and graphics.
- 1U height 19 in (48.26 cm) chassis structure, reducing space from 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 V AC |
| 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 |