16E1+LCD Display+SNMP PDH Multiplexer

This device has console control, it provides 1+1 fiber backup protection, point-to-point optical transmission, and LCD display. It is based on our company’s development of the PDH optical transmission and uses the special VLSI and the SNMP NMS.

The device provides 1-16*E1 interfaces, 1-4*10/100M Ethernet interfaces (Wire speed 100M), and 2 expansion interfaces. 4 Ethernet interfaces are switch interfaces, which can support VLAN. 2 expansion interfaces can be used as the transmission channel of RS232/RS485/RS422 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 small size.

● Provides 16 E1 transparent transmission;

● With char 16*2 LCD display and SNMP agent inside;

● Provide Console manage interface (RS232);

● Provide 2 fiber interfaces 1+1 protect (APS) function and ALS (Automatic Laser Shutdown/Reduction) function;

● Ethernet package size support 1916 byte and 4 Ethernet port could be set separately, and ethernet bandwidth can be set based on multiple of 32K;

● Uses standard 2-wire telephone (non-telephone handles) set as engineering order-wire hotline (optional);

● Provide two fiber interfaces, one as master, the other as slave, insuring uninterrupted service transmission;

● The rate of optical port is 155Mbps, transmission range can reach 25KM, 40KM, 60KM, 80KM or 120KM;

● E1 interface code is HDB3, E1 vibration characteristic conforms to ITU-T G.703, G.823 and G.742;

● Ethernet port supports full/half duplex, 10/100M auto-Nego;

● Ethernet port supports VLAN function and has 4devision mode for user selection;

● Has complete alarm function and can monitor remote device status;

● Supports 2 Fiber Loop-back,and Four E1 loop-back mode,and manage device conveniently;

● user configurable main alarm and minor alarm, display in LCD and sound alarm at the speaker;

● AC 220V, DC-48V, DC+24V can be optional;

● DC-48V/DC+24V 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: 2048Kbps±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)