4E1+4FE (1+1 Fiber Backup) PDH Multiplexer

This device provides 4*E1 interfaces, 4*10M/100M Ethernet interfaces (Wire Speed 100M), and 2 expansion interfaces. The Ethernet interface is a switch interface that can support VLAN. 2 expansion interfaces can be used as the transmission channel of RS232/485/422 asynchronous data. It is very flexible. It has an alarm function. The work is reliable, and stable, it has low power consumption, high integration, and a small size.

● 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 complies 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);

● Provide2 expansion interface can be used as the transmission channel of RS232/485/422 asynchronous data;

● When the optical loses signal, it can detect the remote device is powered off or the fiber is disconnected, and indicates an alarm by LED;

● The local device can view the remote device’s working condition;

● Provide command the remote interface Loopback, ease line maintenance;

● The transmission distance is up to 2-120 Km without interruption;

● AC 220V, DC-48V, DC24V can be optional;

● DC-48V/DC24V power supply polarity detection function, Polarity-Free.

● 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)