Production Introduction:
The LW201-120A series PDH Multiplexer is a kind of fiber-optic communication device which can use fiber optic to transport several E1 signal in the meantime efficiently and can test the used E1 automatically, the flexible circuit test and the indication function has a simple single panel form, which provides a 10/100M linearity Ethernet port(can choose), the official business telephone PABX telephone function(can choose) to raise applied flexibility also in the meantime enlarge the utilization of the fiber optic.
For the sake of the centralized management mode of the user Central Office, we offer desktop PDH Multiplexer which has the function and the performance parameter and can satisfy various requests of the customer.
The Ethernet connector 10/100M, Full/Half Duplex self-adapting completely, support VLAN protocol, this Ethernet connector can automatically and incessantly study the LAN MAC address which connects with each other, and transmit the target address as another frame of LAN. Be transparent to the TCP/IP protocol and provides a safe and seamless conjunction for different connecter devices of the communication in network.
The device meets the telecom operators and users’ requirements, and according telecommunication standards. In keeping with demands of electric power, postal service, bank and Unicom, Mobile and Telecom etc. users.
Key Features:
◆LW201-120A adopts two integrated media converter modules operating in active/standby mode(option)
◆High integration design, working stable
◆Provide up to 4E1 channels and 1 optional port 10/100Mbps Ethernet channel ,Fiber port bit rate:150Mps,up to 120km distance without repeater
◆Full duplex/half-duplex adaptive operating mode;
◆Full digital clock recovery and smooth phase lock technology
◆Jitter index much better than telecommunication standard.
◆Loop back work state displayed by indicator
◆One PCM, without occupying 2M channel for transmission
◆Ensuring a transmission distance of over 40km without relay
◆Board-level design for the integrated equipment, featuring high reliability and stable performance
◆Support the local/remote E1 loop back
◆Remote loop back provided by software and hardware
◆Optional 220V AC power supply or-48V DC power supply.
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Parameter
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Specifications
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E1 Interface:
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In compliance with ITU-T G.703/G.704 protocol
Rate:2.048Mb/s; code pattern: HDB3
Interface impedance:75 BNC interface(unbalanced)/120 RJ45 interface(balanced)
Permitted input frequency shift:2.048MHz 100PPM
Jitter characteristic: In compliance with ITU-T G.703/G.704 protocol
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Optical Interface:
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Wavelength: Single mode 1310 nm(optional 1550nm)
Transmitting power:-10dBm/-5dBm(to be specified in order)
Receiving sensitivity: Better than -36dBm(BER≤10-11)
Connector: FC,
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Ethernet Interface:
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In compliance with IEEE802.3/IEEE802.3u standard, using standard RJ45 connector
Supporting wire-speed 10Base-T/100Base-TX, full duplex/half-duplex adaptive mode
Supporting automatic crossover of twisted pairs
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RS232 interface:
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One RS232 interface for use of the NMS, at the rate of 9600 bit/s, in DCE mode
One RS232 interface for use of user; at the rate of 300—19.2Kbit/s, adaptive, in DTE mode
Both RS232 interfaces share the same DB9 connector
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Orderwire phone:
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The orderwire phone is a common telephone set(two-wire phone), without occupying any E1 channel;
In the case of hook-off at the local end, ringing tone will be generated at the remote end, and ringback tone will be heard at the local end. If one party hooks on , the other party will hear busy tone.
After the peer party hooks on, if the party at the local end does not hook on in 90 seconds, a kind of howler tone will be generated
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Audio channel:
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Compression rate: A law in ITU G.711
Impedance:600(balanced)
Audio range:300Hz~3400Hz
Return loss: Not less than 18dB
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Power:
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Capable of dual power supply, mutual hot backup
AC220V:220V(AC) input, allowing 175V~264V(AC)
DC-48V:-48(DC) input, allowing -40V~-60V(DC)
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Power Consumption:
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≤10W
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Operating Environment:
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Operating temperature: 0℃~50℃
Storage temperature:-30℃~+70℃
Relative humidity : ≤95% no coagulation
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Dimensions:
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484mm(L)*44.5mm(W)*220mm(H)
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Accessories in the package:
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User Manual
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Maintenance Card
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Qualified Certification
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Power Adapter
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Specification
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1 copy
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1 copy
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1 copy
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1
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1 copy
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Ordering Information:
LW201-120A-4E1 LW201-120-4E1+ETHERNET 10/100M
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