M155B Multi-service Optical Multiplexer  is a kind of MSTP economical access partner. It can unify the standard 2M traditional TDM service interface and 10/100BaseTx Ethernet service interface, transformed into high speed optic signal for transmission via optical fiber. M155B is easy for maintenance, plug and play. M155B can also provide centralized local device and comprehensive network management function.

 

Main Feature:

 1. Single, dual fiber is optional;

 2. Provide 4 channels E1 digital interfaces, impedance is 75Ω or 120Ω (optional);

 3. Provide 4 channels 10/100Base-Tx adaptive Ethernet interfaces, support VLAN and bandwidth limit function, the maximum bandwidth is 100M

 4. Provide 1 channel management interface, can achieve local/remote centralized monitoring, and support system upgrade;

 5. Adopting large scale chip, simple circuit, low consumption, high reliability;

 6. Adapt to multi power supply environment, +24VDC, -24VDC, -48VDC or 220VAC

 7. The device has small volume, light weight, working stably and reliably, convenient installation.
 

Technical Parameter:

1. Single Mode Transmitting Optical Power: -3dBm ~ -9dBm

2. Single Mode Receive Sensitivity: -33dBm ~ -40dBm

3. Fiber Connector: Dual SC/Dual FC/Single SC is optional;

4. Applicable Fiber: Single mode, Multi mode.
 

1. Connector: RS-232

2. Interface Level: RS-232 level

3. Interface Connector: RJ-45

4. Management Interface Baud Rate: 57600bit/s

5. Extension Serial Port Maximum Baud Rate: 115200bit/s
 

1. Nominal Speed Rate: 2048Kbps, Tolerance ±50ppm

2. Code Type: HDB₃

3. Interface Impedance: 75Ω(unbalanced)or 120Ω(balanced)is optional

4. Digital Interface Electrical Specification: Comply with ITU-TG.703 propose, Pulse waveform comply with sample as Picture 4.3

5. Jitter Transfer Function: Comply with ITU-TG.823 propose

6. Input Jitter Tolerance: Comply with ITU-TG.823 propose

7. Output Jitter: Comply with ITU-TG.823 propose

8. Level: ±2.37V±10% or ±3.00V±10%

9. Interface Connector is: BNC Coaxial Mount
 

1.  Interface: 10/100Base-Tx

2. Interface Rule: Comply with IEEE-802.3 standard

3. Interface Speed Rate: 10/100M self-adaptation

4. Bandwidth: Maximum bandwidth is 100M
 

1. DC Power Supply Voltage: +24VDC, Tolerance Range: +20V~+28V

2. DC Power Supply Voltage: -48VDC, Tolerance Range: -24V~-72V

3. AC Power Supply Voltage: 170V~270V

4. Power Consumption: ≤ 10W
 

1. Environment Temperature: 0~60℃;

2. Relative Humidity: ≤90%(35℃);

3. Atmospheric Pressure: 86~106Kpa.