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Model Number: PT-20

Specifications

Brief Introduction
PT-20 E1 HDSL Equipment will execute the E1 signal transmission in the local cable or military twisted cable. It adopts G.SHDSL standard. G.SHDSL is one type of symmetrical, multi-rate DSL. It accords with ITU-T standard (G.991.2), and it is the ideal equipment to do the terminal to terminal solution. It has the advantages of rate-adjustment technology and grid coding pulse amplitude modulation (TC-PAM). G.SHDSL selects TC-PAM as its modulation technology, which is fully accepted by the customers because it can save copper cable and be based on multiple standards. Compared with 2B1Q SDSL, TC-PAM frequency spectrum is narrower, and crosstalk interference will be less.

Main Features
* Adopting the new generation TC-PAM technology, which satisfies ITU G.992.1 international standards, its performance is better than that of 2B1Q coding, the circuit enjoys high integration, small size, low power consumption, and high reliability;
* Transmitting cable: twisted pair cable;
* Long transmitting distance, when the transmitting speed is 2038kbps, the transmission distance can reach 3.5km in 0.4mm cable; 
* Communication mode: duplex, echo canceling;
* Easy to install and use, and also has the functions of parameters setting and management for remote equipment;
* Power supply: 220VAC.

Equipment Models
Model                 Access type 
PT-20 E1            E1 interface
PT-20 ETH         ETH interface

Technical Specification
* E1 interface accords with ITU-T G.703 recommendations, the impedance is 75Ω, adopts Q9 connector; 
* NMS port is RS232 port;
* Power consumption: less than 10W;
* Working temperature: -20℃ to 60℃, humidity≤90% (non-condensation);
* Dimensions: 440 mm×140 mm×44 mm.