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Hengguang Technologies Co.,Ltd



Product Category : Telecommunications
Product Code : Hengguang
Product Name : PCM Multiplexer
Product Info : OMPCM30 is a type of standard, realizes the integrated access of various operations, such as 30 video channels or date into one 2M digital signal interface. E1 interface compatible with ITU-T G.703. It can be applicable for connecting to the E1 channel of SDH, PDH, satellite, speeding frequency, and digital microwave. The E1 interface can directly change to optical interface, then it can work without PDH, which can be connected with fiber to complete the transmission of 30 channels of analog signals to the remote.

The equipment is 19 inches(1U) in height. The sub-frame of the equipment and the front panel are connected by the magnetic
claspers. The design makes easy the unfolding of the equipment. All of the unit cards in the equipment can be hot swapped and replaced, maintenance, capacity extension and upgrading of the equipment is simple process.

All the unit cards have alarm indicators and alarm logic circuit which can indicate all of the faults. If only the indicator is bright that indicate the card works normally. The indicator can be displayed through the panel membrane. The equipment adopts closed connector
for various operations. For example, the telephone wire, 2/4 wire EM, RS232 and 10/100Base_T Ethernet interfaces are all RJ45 connectors. E1 uses BNC connector and FC module can be used optic interface.

Power supply can either DC -48V or AC 220V which have their independent Progressive Line Terminal and switch. Two independent power module inside the equipment so that the power can be worked with 1+1 protection. The OMPCM30 is able to work in pairs and connect with other PCM30 equipment which made by other manufacturers. Because there are various of selection switches, the demand for clock, frame structure or the position of the signaling bits is able to be set then it can be compatible with the remote one.

The special feature of the equipment is that it is possible to connect with the Program-controlled switchboards to realize picking numbers, it is more convenient than by analog interface. Because the Program-controlled switchboards will cost too much project connection and save plate of the program-controlled switchboards. The investment can be also save double. It needn't set a PCM30 at the Program-controlled switchboards. No only connecting with Harris and Siemens, but also with Ericsson, however, for most PCM, it can't achieve. It is decided if there is signal process ability in the PCM30.

The network management of OMPCM30 is directly connected to the PC or COM interface, The SABIT of the TS0 slot idle BIT in the E1 is adopted to realize the network information of the remote, that is to say, it is not necessary to use other transmission of channel.
The PCM120 equipment multiplexes 0-120 channels of voice data into 4-16 E1 data. As an equipment which has import quality and based on SEL Company in Pairs. With stable working characteristic the PCM120 is able to be used in 50KV electric power substations and 220V electric power substations. Each interface has many protection circuits. Stainless steel with Alloy oxidation Aluminum board make the sub-frame not change color. Two power channels to constitute 1+1 protection. 4 channels can be plugged in central multiplex unit, each central multiplex unit has 4 E1 ports, so there are totally 4-16 E1 ports, 12 channels remaining for inserting various service cards. To use 10 channels each unit, 6U sub-frame has 120 channels which equivalent 4 PCM equipments.

16 E1 ports have the ability of cross-connect 512X512 time slots flexibly, With the help of network management software, the PCM equipment could select routing port automatically. 16 E1 routing-proposals can be defined in accordance with the E1 quantity for auto routing switch. In fact, 12 channels for the service card can be plugged in multiplex unit, So if necessary, the equipment could upgrade to 64 E1 and work as a completely cross-connect equipment.

This equipment can work as 16 PCM that is the other way to explain the cross-connect. Like other PCM made by our company, PCM120 has various of service interfaces, including 2100HZ carrier magnets interfaces that is used in military, stereo signal interfaces in broadcasting radio and so on. The most application of the interfaces is S and O interfaces of the telephone, 2/4 wire interface and various interfaces for data.



Contact Information
Company :   Hengguang Technologies Co.,Ltd
Business Type :   Manufacturer
Address :   Number 6 TaiShan Road, HeXi District
City & Country :   Tianjin , China
Tel No. :   8602228313801
Fax no. :   8602228277197
Website :   http://www.42068.tradebig.com
Contact Person :   Miss Lee
e-Mail :   Click here to contact us

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