16E1+12FE+8Voice PDH Multiplexer

This product is a point-to-point optical transmission device that is developed on the basis of PDH special VLSI for optical fiber transmission. It provides 16 E1 interfaces, 1 digital business phone, 12 10/100M Fast Ethernet interfaces (line speed 100m), and 8-channel telephone. The Ethernet interface is the switch port, which can support the VLAN division. It has a perfect alarm function. It has stable and reliable operation, low power consumption, high integration, and small size.

● Integrated circuit based on independent intellectual property rights;

● It provides 2 optical interfaces, double optical port 1 + 1 protection (APS), ALS (automatic laser shutdown/reduction) functions: after detecting the optical fiber interruption of the optical path, the optical transmitter has no output power, and can automatically return to normal state after the optical fiber is recovered;

● The ethernet interface rate is 10/100M, full duplex/half duplex adaptive; the 12-channel network is the switch port and can also be divided into VLAN, which can be set as 12-channel logical isolation;

● E1 interface meets the recommendation of G.703 and adopts full digital clock recovery and smooth phase-locked technology;

● When the optical signal is lost, it can detect whether the opposite equipment is powered down or the optical fiber is blocked, and indicate the alarm through the indicator light;

● It has the function of viewing and displaying the working status of remote equipment at the local end;

● 8channel voice telephone; voice telephone port supports FXO port and FXS port, FXO port connects with SPC exchange, FXS port connects with user’s telephone;

● When the optical signal is lost, it can detect whether the opposite equipment is powered down or the optical fiber is blocked, and indicate the alarm through the indicator light;

● It has the function of viewing and displaying the working status of remote equipment at the local end;

● It provides a remote interface loopback function.

● It provides a console management interface for easy installation and opening, and provides network management interface (BNC) for network management monitoring;

● The transmission distance without a relay can reach 2 ~ 120 km;

● Multiple power supply modes: AC220V, dc-48v / DC24 V, etc.; support AC + DC, AC + AC, DC + DC and other dual power backup modes;

● Dc-48v / DC24 V power supply has the function of automatic polarity detection, so it is unnecessary to distinguish the positive and negative poles during installation.

● Fiber

Multi-mode Fiber

50/125um, 62.5/125um,

Maximum transmission distance: 5Km @ 62.5 / 125um single mode fiber,attenuation (3dbm/km)

Wave Length: 820nm

Transmitting power: -12dBm (Min) ~-9dBm (Max)

Receiver sensitivity: -28dBm (Min)

Link budget: 16dBm

Single-mode Fiber

8/125um, 9/125um

Maximum transmission distance: 40Km

Transmission distance: 40Km @ 9 / 125um single mode fiber, attenuation (0.35dbm/km)

Wave Length: 1310nm

Transmitting power: -9dBm (Min) ~-8dBm (Max)

Receiver sensitivity: -27dBm (Min)

Link budget: 18dBm

● E1 Interface

Interface Standard: comply with protocol G.703;

Interface Rate: n*64Kbps±50ppm;

Interface Code: HDB3;

E1 Impedance: 75Ω (unbalance), 120Ω (balance);

Jitter tolerance: In accord with protocol G.742 and G.823

Input Allowed Attenuation: 0~6dBm

● Ethernet Interface (10/100/1000M)

Interface rate: 10/100/1000 Mbps, half/full duplex auto-negotiation

Interface Standard: Compatible with IEEE 802.3, IEEE 802.1Q (VLAN)

MAC Address Table: 4096

Connector: RJ45, support Auto-MDIX

● FXS Phone Interface

Ring voltage: 75V

Ring frequency: 25HZ

Two-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB

● FXO Switch Interface

Ring detect voltage: 35V

Ring detection frequency: 17HZ-60HZ

Two-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB

● Working Environment

Working temperature: -10°C ~ 60°C

Working Humidity: 5%~95 % (no condensation)

Storage temperature: -40°C ~ 85°C

Storage Humidity: 5%~95 % (no condensation)