Our 16E1 PDH Optical Multiplexer is a point-to-point transmission device developed based on proprietary ultra-large-scale integrated circuits (IC). It provides 1 to 16 E1 interfaces and an optional 1-channel digital engineering order-wire (EOW). Featuring a highly integrated and compact design, the device ensures stable and reliable operation with low power consumption and comprehensive alarm monitoring.
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16E1 PDH Multiplexer
Provides 1-16 E1 ports and optional EOW with a standard telephone interface (non-handset). Includes a Console port for local network management.
1. Based on proprietary intellectual property high-performance integrated circuits.
2. Employs a modular wide-dynamic-range optical detector to ensure signal sensitivity and stability.
3. Fully complies with ITU-T G.703 recommendations, featuring built-in all-digital clock recovery and smooth phase-locked loop (PLL) technology.
4. Supports 1-channel PCM digital engineering order-wire (EOW) for convenient site maintenance (Optional).
5. Automatically detects whether optical signal loss is due to remote equipment power-off or a fiber fault, with LED indicators for alarm status.
6. Supports monitoring the operating status of the remote equipment from the local terminal.
7. Supports command-based remote interface loopback, facilitating efficient line commissioning and troubleshooting.
8. Supports a non-relay transmission distance ranging from 2km to 120km.
9. Offers multiple power supply modes, including AC220V, DC-48V, or DC+24V.
10. Features automatic polarity detection (Polarity-Free) for DC-48V/DC24V inputs, eliminating the need to distinguish polarity during installation.
◆ Optical Interface
| Optical Port | 1 |
| Fiber Type | Single-fiber or Dual-fiber |
| Interface Type | FC/SC/ST/LC (SFP) |
| Wavelength | Multi-mode: 850nm/1310nm Single-mode: 1310nm/1550nm |
| Non-relay Transmission Distance | 20km ~ 120km |
| Typical Transmit Power | Single-mode 1310/1550nm: ≥-9dBm Multi-mode 850nm: -18dBm Multi-mode 1310nm: -25dBm |
| Receiver Sensitivity Range | -28dBm to -40dBm |
◆ E1 Interface
| Standard | Complies with ITU-T G.703 recommendations |
| Rate | 2048Kb/s ± 50ppm |
| Code Pattern | HDB3 |
| Impedance | Unbalanced 75Ω / Balanced 120Ω Note: Unbalanced interfaces are equipped with coaxial adapters for 75-2/3 cables. |
| Jitter Performance | Complies with ITU-T G.742 and G.823 recommendations |
| Input Tolerance | 0 ~ 6dBm |
◆ FXS Engineering Order-Wire (EOW) Interface
| Ringing Voltage | 75V |
| Ringing Frequency | 25Hz |
| Two-wire Input Impedance | 600Ω (Off-hook) |
| Return Loss: | 20dB |
◆ Electrical & Mechanical Characteristics
| System Power Supply | AC 180V ~ 260V; DC -48V; DC +24V |
| Power Consumption | ≤10W |
| Dimensions | 485 (L) x 140 (W) x 45 (H) mm (19" 1U Rack-mount) |
◆ Environmental Index
| Operating Temperature | −10∘C∼+60∘C |
| Storage Temperature | −40∘C∼+85∘C |
| Operating Humidity | 0%∼95% (Non-condensing) |
| MTBF (Mean Time Between Failures) | >100,000 hours |
