120ohm 75ohm 8 E1 Optical Fiber PDH Multiplexer RJ45 1310nm Wave HDB3

Overview

 This device  provides 1-8*E1 interface, 1-4*10M/100M Ethernet interface (WireSpeed 100M) and 2 expansion interface. 4* Ethernet interface is switch interface, can support VLAN. 2expansion interface can be used as the transmission channel of RS232/RS485/RS422 asynchronous data. It is very flexible. It has alarm function. The work is reliable, stable, and low power consumption, high integration, small size.

Features

• Based on self -copyright  IC
• Modular wide dynamic optical detector
• Ethernet(Line Speed 100M) interface rate is 10M/100M, half/full duplex Auto-Nego
• E1 interface comply with G.703, adopts digital clock recovery and smooth phase-lock technology
• Uses standard 2 wire telephone (non-telephone handles) set as engineering order-wire hotline(optional)
• Provide2expansion interface can be used as the transmission channel of RS232/RS485/RS422 asynchronous data
• When optical lose signal, it can detect the remote device is power off or fiber is disconnected, and indicates alarm by LED
• The local device can view the remote device working condition
• Provide command the remote interface Loop Back, ease line maintenance
• The transmission distance is up to 2-120Km without interruption
• AC 220V, DC-48V, DC24V can be optional
• DC-48V/DC24V power supply polarity detection function, Polarity-Free

Parameters

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

 Allowed Attenuation:       0~6dBm

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

 Allowed Attenuation:       0~6dBm

Ethernet interface(10/100M)

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

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

        MAC Address Capability:     4096

Connector:                          RJ45, support Auto-MDIX

       Working environment

Working temperature:        -10°C ~ 50°C

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

Storage temperature:             -40°C ~ 80°C

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

       Specifications